CN216962279U

CN216962279U - Base station applied to surface cleaning device and surface cleaning system

Info

Publication number: CN216962279U
Application number: CN202123440899.3U
Authority: CN
Inventors: 杜帅
Original assignee: Beijing Hete Wisdom Technology Co ltd
Current assignee: Beijing Hete Wisdom Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-15
Anticipated expiration: 2031-12-31

Abstract

The embodiment of the application discloses be applied to surface cleaning device's basic station and surface cleaning system, the basic station includes: an electrical storage device for supplying power to the surface cleaning device via a cable connecting the base station and the surface cleaning device; a cord reel for receiving or releasing the cable; wherein the power storage device is positioned at one side of the reel, and the projections of the power storage device and the reel in the front-back direction at least partially overlap. In this application embodiment, power storage device and winder all are close to the bottom plate setting and can further reduce the focus of basic station, improve the stability of basic station.

Description

Base station applied to surface cleaning device and surface cleaning system

Technical Field

The present application relates to the field of cleaning technologies, and in particular, to a base station and a surface cleaning system for a surface cleaning apparatus.

Background

A surface cleaning device, such as a window cleaning robot, is one type of smart home appliance. The glass can be firmly adsorbed on the glass through the negative pressure generated after the vacuum pumping of the vacuum pump or the fan device arranged in the glass body. The bottom of the window cleaning robot is usually provided with a cleaning cloth, when the window cleaning robot walks on glass, the cleaning cloth can be used for cleaning stains on the glass, and then the glass is cleaned.

In the related art, a base station is provided for the surface cleaning apparatus, and related function units are provided on the base station, and the base station is used in cooperation with the surface cleaning apparatus to implement corresponding functions.

However, the arrangement position of each functional unit in the base station may affect the performance of the base station, and the prior art does not have a good solution.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a base station applied to a surface cleaning device and a surface cleaning system, and particularly provides an arrangement scheme of all functional units in the base station.

In a first aspect, an embodiment of the present application provides a base station for a surface cleaning apparatus, on which a front-back direction is defined, the base station comprising:

an electrical storage device for supplying power to the surface cleaning device via a cable connecting the base station and the surface cleaning device;

a cord reel for receiving or releasing the cable;

wherein the power storage device is positioned at one side of the reel, and the projections of the power storage device and the reel in the front-back direction at least partially overlap.

In one possible implementation, the projection of the electrical storage device in the front-rear direction covers the projection of the reel in the front-rear direction.

In one possible implementation, the projection of the cord reel in the front-rear direction covers the projection of the electrical storage device in the front-rear direction.

In one possible implementation, the cord reel is located on a front side of the electrical storage device.

In one possible implementation manner, the base station further includes:

a cleaning solution containing tank for containing a cleaning solution, the cleaning solution containing tank being located at a side of the power storage device and/or the reel.

In one possible embodiment, the cleaning liquid receiving tank and the electrical storage device have at least a partial overlap in projection in the front-rear direction.

In one possible implementation, the cleaning liquid containing tank and the reel are at least partially overlapped in projection in the front-back direction.

In one possible embodiment, the cleaning liquid receiving tank is detachably connected to the base station.

In one possible embodiment, the cleaning liquid container is located on the rear side of the power storage device and/or the reel.

In one possible implementation, the cleaning liquid containing tank is disposed at a rear side of the power storage device, and the power storage device is disposed at a rear side of the reel.

In one possible implementation manner, the base station further includes:

the surface cleaning device comprises a shell, wherein a surface cleaning device accommodating cavity is arranged on the shell and used for limiting the surface cleaning device on the shell, and the surface cleaning device accommodating cavity is positioned on the side part of the winder and/or the power storage device.

In one possible implementation, the surface cleaning device accommodating chamber is located at a front side of the cord reel and/or the power storage device.

In a possible implementation manner, the base station is provided with the surface cleaning device accommodating cavity, the reel, the power storage device and the cleaning solution accommodating tank in sequence from front to back.

In a second aspect, an embodiment of the present application provides a base station for a surface cleaning apparatus, on which a front-back direction is defined, the base station comprising:

the surface cleaning device comprises a shell, wherein a surface cleaning device accommodating cavity and a force application part are arranged on the shell, the surface cleaning device accommodating cavity is used for limiting the surface cleaning device on the shell, and the force application part is used for providing a force application point for a user;

an electrical storage device disposed inside the housing, the electrical storage device for supplying power to the surface cleaning device via a cable connecting the base station and the surface cleaning device;

a cord reel provided inside the case, the cord reel being for receiving or releasing the cable;

a cleaning liquid containing tank for containing a cleaning liquid;

In a third aspect, an embodiment of the present application provides a surface cleaning system, comprising a surface cleaning apparatus and the base station of any one of the first aspect, the base station and the surface cleaning apparatus being connected by a cable.

In this application embodiment, power storage device and winder all are close to the bottom plate setting and can further reduce the focus of basic station, improve the stability of basic station.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1A is a schematic view of a surface cleaning system according to an embodiment of the present disclosure;

fig. 1B is a schematic view illustrating a storage state of a surface cleaning system according to an embodiment of the present disclosure;

fig. 2A is a schematic view illustrating a switching operation scenario provided in an embodiment of the present application;

fig. 2B is a schematic diagram illustrating another switching operation scenario provided in the embodiment of the present application;

fig. 3 is a schematic internal structural diagram of a base station according to an embodiment of the present disclosure;

fig. 4 is a cross-sectional view of a base station along a front-back direction according to an embodiment of the present application;

fig. 5 is a perspective view of a reel assembly according to an embodiment of the present invention;

FIG. 6 is an exploded view of a reel assembly according to an embodiment of the present invention;

FIG. 7 is a sectional view of a reel assembly according to an embodiment of the present invention;

fig. 8A is a schematic structural view of a winding wheel according to an embodiment of the present application;

fig. 8B is a schematic structural view of another winding wheel according to an embodiment of the present disclosure;

fig. 8C is a schematic view of a cable fixing method according to an embodiment of the present disclosure;

FIG. 9A is an exploded view of another reel assembly according to the present invention;

FIG. 9B is a side view of the cord reel assembly of FIG. 9A;

FIG. 9C is a cross-sectional view taken along A-A in FIG. 9B;

FIG. 9D is a front view of the cord reel assembly of FIG. 9A;

FIG. 9E is a cross-sectional view taken along line B-B of FIG. 9D;

fig. 10 is a schematic structural diagram of a base station according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of an outlet assembly according to an embodiment of the present disclosure;

fig. 12A is a schematic view illustrating an arrangement of a slide shaft according to an embodiment of the present disclosure;

fig. 12B is a schematic view illustrating another arrangement of the slide shaft according to the embodiment of the present disclosure;

fig. 12C is a schematic view illustrating another arrangement of the slide shaft according to the embodiment of the present disclosure;

FIG. 13 is a schematic view of a surface cleaning system according to an embodiment of the present disclosure;

FIG. 14 is a block diagram of a surface cleaning system according to an embodiment of the present application;

FIG. 15 is a block diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 16 is a schematic view of another alternative surface cleaning system according to an embodiment of the present application;

FIG. 17 is a block diagram of a surface cleaning system corresponding to the surface cleaning system shown in FIG. 16 according to an embodiment of the present disclosure;

FIG. 18 is a block diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 19 is a block diagram of another alternative surface cleaning system according to an embodiment of the present application;

FIG. 20 is a block diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 21 is a block diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 22 is a block diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 23 is a block diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 24 is a block diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 25 is a schematic diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application;

FIG. 26 is a cross-sectional view of a surface cleaning system corresponding to that shown in FIG. 25 provided in accordance with an embodiment of the present application;

fig. 27 is a schematic structural diagram of a base station according to an embodiment of the present application;

fig. 28 is a cross-sectional view of the base station shown in fig. 27 according to an embodiment of the present application;

FIG. 29 is a schematic view of a surface cleaning apparatus according to an embodiment of the present application;

FIG. 30 is a schematic view of another alternative surface cleaning apparatus according to an embodiment of the present application;

FIG. 31 is a schematic view of the walking of the surface cleaning apparatus shown in FIG. 30 according to an embodiment of the present application;

fig. 32A to fig. 32C are schematic diagrams of an application scenario provided in the embodiment of the present application;

fig. 33 is a schematic flow chart illustrating a method for controlling a fall of a surface cleaning apparatus according to an embodiment of the present disclosure;

FIG. 34 is a graphical illustration of a first torque over time as provided by an embodiment of the present application;

fig. 35 is a schematic diagram of a first torque variation with cable release length according to an embodiment of the present application.

The symbols in the figures are represented as: 100-surface cleaning device, 110-suction unit, 111-suction unit air outlet, 120-walking unit, 130-first cleaning unit, 140-second cleaning unit, 150-link arm, 151-first pivot, 152-second pivot, 200-base station, 210-housing, 211-outlet, 212-handle, 213-surface cleaning device receiving cavity, 214-ear, 215-cleaning liquid receiving box receiving cavity, 220-bottom plate, 221-winder holder, 222-accumulator holder, 230-accumulator, 240-winder connector, 241-first connector, 242-second connector, 243-third connector, 244-motor fixing screw, 250-winder, 251-motor, 2511-a motor shaft, 252-a winding wheel, 2521-a line blocking plate, 2522-a winding post, 2523-a threading hole, 2524-a threading protective sleeve, 253-a cable holder, 2531-an outer copper ring, 25311-an outer copper ring copper sheet, 2532-an inner copper ring, 25321-an inner copper ring copper sheet, 2533-a shrapnel assembly, 25331-a shrapnel contact, 2534-a cable holder fixing screw, 254-a line pressing plate, 260-a wire outlet assembly, 261-a sliding shaft holder, 262-a sliding shaft, 263-a pin, 270-an adapter, 280-a control plate, 300-a cable, 301-a power line, 302-a power line/safety line integrated cable, 3021-a safety line, 303-a transfusion hose, 304-a steam hose, 305-a liquid inlet pump module pipe, 306-a coating hose, 307-a first steam generator liquid inlet pipe, 308-a ventilation pipe, 400-an external power line, 500-a power socket, 601-a cleaning liquid accommodating box, 6011-a liquid injection hole, 602-a first pump module, 603-a second pump module, 604-a first steam generator, 605-a second steam generator, 606-a first pressure adjusting module, 607-a second pressure adjusting module, 710-an air duct, 711-an air duct air inlet, 712-an air duct air outlet, 720-a vacuum unit and 721-a fan module.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

A surface cleaning apparatus is a self-moving cleaning apparatus that can complete the cleaning of a work surface while traveling over the surface to be cleaned (e.g., glass, which may also be referred to as the surface to be cleaned).

In order to supply power to the window cleaning robot, the window cleaning robot is usually provided with a power cord, one end of the power cord is connected with the window cleaning robot, and the other end of the power cord is used for connecting a power socket (for example, a 220V household socket). In addition, in order to avoid safety accidents caused by the falling of the window cleaning robot in the window cleaning process, a safety rope is usually further arranged on the window cleaning robot, one end of the safety rope is connected with the window cleaning robot, and the other end of the safety rope is used for fixing (for example, the safety rope is fixed on a window or a table, and the safety rope can be specifically selected according to the working environment of the window cleaning robot). If the window cleaning robot falls off from the window, the window cleaning robot can be pulled by the safety rope, so that safety accidents are avoided. In some implementations, the power cord and safety cord may also be integrated into one harness arrangement, i.e., a power cord/safety cord integrated cable.

In practical applications, the window cleaning robot generally needs to work in a plurality of independent work scenes respectively. For example, a room includes a plurality of windows, and the window cleaning robot needs to clean the plurality of windows, respectively. However, in the above implementation scheme, the working scene of the window-cleaning robot is usually constrained by the position of the power socket, the length of the power cord or the fixed position of the safety rope, so that the window-cleaning robot has poor environmental adaptability. For example, if a certain window position has no power socket or a certain window position has no fixed position of the safety rope, the window cleaning robot cannot clean the window. In addition, by adopting the scheme, the process that the user moves the window cleaning robot among a plurality of windows is very complicated, so that the window cleaning robot is poor in mobility. For example, when a user needs to move the window cleaning robot from one window position to another window position, the user needs to pull down the power plug and unlock the safety rope at the previous window position; then, a power plug is plugged into the next window position again, the safety rope is tied, and the user experience is poor.

It should be noted that, the window cleaning robot is taken as an example for explanation, but the application scenarios of the surface cleaning device and the surface cleaning device are not limited in the embodiments of the present application. For example, in some possible implementations, the bottom of the surface cleaning apparatus may not be provided with the suction unit, and in this case, the surface cleaning apparatus may be used for floor cleaning; in addition, the surface cleaning device can be used for cleaning ceilings, walls or other surfaces besides windows, and the embodiment of the application is not limited to the purpose.

In view of the above problems, embodiments of the present application provide a split type design scheme, which can increase the applicable scenarios of the surface cleaning apparatus and improve the mobility of the surface cleaning apparatus. The following description is made with reference to the accompanying drawings.

Fig. 1A is a schematic view of a working state of a surface cleaning system according to an embodiment of the present disclosure, and fig. 1B is a schematic view of a storage state of the surface cleaning system according to the embodiment of the present disclosure. As shown in fig. 1A in conjunction with fig. 1B, the surface cleaning system includes a surface cleaning apparatus 100, a base station 200, and a cable 300. Wherein one end of cable 300 is connected to surface cleaning apparatus 100 and the other end is connected to base station 200. The type of cable 300 is not limited in the embodiments of the present application, and those skilled in the art can configure the cable 300 between the surface cleaning apparatus 100 and the base station 200 according to actual requirements.

For example, the cable 300 may be a safety cord and/or a power cord. In addition, the power line/safety rope can be integrated with a cable, namely, the power line and the safety rope can be integrated with the same cable. In other application scenarios, the cable 300 may also include ventilation tubing, signal lines, infusion hoses, and/or steam hoses, among others. When two or more cables 300 are connected simultaneously between the base station 200 and the surface cleaning apparatus 100, the two or more cables 300 may be wrapped in a covered hose 306 (shown in fig. 13 and 16) for ease of storage and organization, for example, the covered hose 306 may be a corrugated tube.

In one possible implementation manner, an electrical storage device 230 (see fig. 3 and 4) is disposed in the base station 200, and the electrical storage device 230 may be an energy storage device such as a battery. The power storage device 230 may supply power to the surface cleaning apparatus 100 through a power cord in the cable 300. Alternatively, the safety line of the cable 300 may be secured to the base station 200 (either directly to the base station or to a winder in the base station, as described in more detail below). Therefore, the operation scene of the surface cleaning apparatus 100 is not restricted by the position of the power socket, the length of the power cord, or the fixing position of the safety cord, and the environmental suitability of the window cleaning robot is improved.

In correspondence with the electrical storage device 230, an adapter 270 (see fig. 3) is further provided in the base station 200, and the adapter 270 is used for connecting to a power outlet 500 (see fig. 2B) through an external power cord 400 to charge the electrical storage device 230. The power storage device 230 in the base station 200 may be charged when the surface cleaning apparatus 100 is idle, or the power storage device 230 in the base station 200 may be charged when the surface cleaning apparatus 100 is working, which is not limited in this embodiment.

In addition, the base station 200 is further provided with a surface cleaning device accommodating cavity 213 outside, and the size and shape of the surface cleaning device accommodating cavity 213 are matched with those of the surface cleaning device 100, so as to limit the surface cleaning device 100 on the base station 200, as shown in fig. 1B, and prevent the surface cleaning device 100 from falling off the base station 200 during the movement of the base station 200.

Referring to fig. 2A, a schematic diagram of switching a working scenario provided in the embodiment of the present application is shown. After cleaning of window a is completed, the surface cleaning system needs to be moved from window a position to window B position to clean window B, as shown in fig. 2A. During movement, the surface cleaning apparatus 100 can be retained in the surface cleaning apparatus receiving cavity 213 (the storage state shown in fig. 2A), and at this time, the surface cleaning apparatus 100 and the base station 200 are equivalent to a whole body, which is convenient for movement. After moving the surface cleaning system to the position of window B, the surface cleaning apparatus 100 is removed from the surface cleaning apparatus receiving chamber 213, placed in window B, and the cleaning operation is continued.

Referring to fig. 2B, a schematic diagram of another working scenario switching provided in the embodiment of the present application is shown. As shown in fig. 2B, after the window a is cleaned, the surface cleaning system needs to be moved from the window a position to a position corresponding to the power outlet 500 (e.g., a corner of a wall) for charging (i.e., charging the power storage device 230 in the base station 200). During movement, the surface cleaning apparatus 100 can be retained in the surface cleaning apparatus accommodating chamber 213 (the storage state in fig. 2B), and at this time, the surface cleaning apparatus 100 and the base station 200 are equivalent to a whole, which is convenient for movement. In the charging process, the surface cleaning device 100 can be kept in a storage state, so that the space is saved and the operation is facilitated.

In summary, in the process of moving the surface cleaning system from one working scene to another working scene, operations such as plugging and unplugging of a power line or unbinding/binding of a safety rope are not required, and the surface cleaning apparatus 100 and the base station 200 can be combined into a whole, so that the movement is convenient, and the flexible switching among a plurality of working scenes is convenient.

In one possible implementation, the surface cleaning apparatus receiving cavity 213 is disposed at a side of the housing 210 to facilitate a user in removing the surface cleaning apparatus 100 from the surface cleaning apparatus receiving cavity 213 or placing the surface cleaning apparatus 100 in the surface cleaning apparatus receiving cavity 213.

Specifically, the surface cleaning apparatus accommodating chamber 213 includes a first opening and a second opening, and the first opening and the second opening communicate with each other. This arrangement further facilitates the operation of a user placing or removing the surface cleaning apparatus 100 from the surface cleaning apparatus receiving cavity 213.

In practice, the user typically places the side of the surface cleaning apparatus housing 213 facing the surface to be cleaned, so that the surface cleaning apparatus 100 can be placed on the surface to be cleaned directly after the surface cleaning apparatus 100 is removed from the surface cleaning apparatus housing 213 without bypassing the base station 200.

For convenience of illustration, the side where the surface cleaning apparatus receiving cavity 213 is located is defined as the front side of the housing 210, and six directions of the base station 200 are defined in the base station 200 (as shown in fig. 3). In some possible implementations, the "upper" may also be referred to as the "top" and the "lower" may also be referred to as the "bottom".

Fig. 3 is a schematic internal structure diagram of a base station according to an embodiment of the present disclosure, and fig. 4 is a cross-sectional view of the base station according to the embodiment of the present disclosure along a front-back direction. As shown in fig. 3 in conjunction with fig. 4, the base station 200 includes a base plate 220 and a housing 210, and the housing 210 can be snapped onto the base plate 220 to form an inner space of the base station 200. The surface cleaning apparatus receiving chamber 213 is a receiving space formed outside the housing 210 to match the surface cleaning apparatus 100. In the embodiment of the present application, the first opening is disposed at a side portion of the housing 210, and specifically, may be a front side of the housing 210, and the second opening is disposed at a top portion of the housing 210.

To retain the surface cleaning apparatus 100 within the surface cleaning apparatus receiving cavity 213, in one possible implementation, a bottom surface (a surface opposite the second opening) of the surface cleaning apparatus receiving cavity 213 is disposed obliquely with respect to a horizontal plane, a side surface (a surface opposite the first opening) of the surface cleaning apparatus receiving cavity 213 is disposed obliquely with respect to a vertical plane, and a projection of the side surface of the surface cleaning apparatus receiving cavity 213 in a horizontal direction covers a projection of the bottom surface of the surface cleaning apparatus receiving cavity 213 in the horizontal direction, and the projection of the side surface of the surface cleaning apparatus receiving cavity 213 and the projection of the bottom surface in the vertical direction meet.

The relative positional relationship between the surface cleaning apparatus accommodating chamber 213 and the horizontal and vertical surfaces refers to the relative positional relationship between the surface cleaning apparatus accommodating chamber 213 and the horizontal and vertical surfaces when the base station 200 is placed on a horizontal support surface (e.g., the floor). When the base station 200 is placed on a horizontal support surface, the bottom plate 220 of the base station 200 is parallel to the horizontal plane, and the bottom plate 220 is perpendicular to the vertical plane. Therefore, the horizontal plane may be understood as a plane parallel to the bottom plate 220, and the vertical plane may be understood as a plane perpendicular to the bottom plate 220.

For example, in the orientation shown in FIG. 3, the bottom surface of the surface cleaning apparatus receiving cavity 213 is gradually sloped downward in a front-to-rear direction; the side surface of the surface cleaning apparatus housing chamber 213 is gradually inclined rearward in the direction from below to above. By adopting the arrangement mode, the surface cleaning device 100 can be limited in the surface cleaning device accommodating cavity 213 by means of gravity, and the surface cleaning device 100 is prevented from falling in the surface cleaning device accommodating cavity 213 in the process of moving the base station 200.

It should be noted that other ways of retaining the surface cleaning apparatus 100 within the surface cleaning apparatus receiving cavity 213 are possible to those skilled in the art. For example, an elastic bandage is used to wrap around the sides of the housing, and the surface cleaning apparatus 100 is retained within the surface cleaning apparatus receiving cavity 213 by the elastic force of the elastic bandage. The embodiment of the present application does not specifically limit the position of the surface cleaning apparatus 100 in the surface cleaning apparatus accommodating cavity 213.

In addition, in order to further improve the convenience of moving the surface cleaning system, a winder 250 is further provided in the base station 200, and when the surface cleaning system needs to be moved from one working scene to another, the cable 300 can be firstly stored in the base station 200 through the winder 250 (as shown in fig. 1B), and after the surface cleaning system is moved to a target position, the cable 300 can be pulled out from the base station 200 (as shown in fig. 1A). In a specific implementation, a user may select the length of the cable 300 drawn out from the base station 200 according to an actual working scene; alternatively, the length of the cable 300 drawn out in the base station 200 is controlled by a control unit in the surface cleaning apparatus or the base station, which is not particularly limited by the embodiment of the present application.

The operation of the reel 250 will be described in detail with reference to the accompanying drawings.

Referring to fig. 3, in the embodiment of the present invention, the reel 250 is fixed to the reel fixing bracket 221 by the reel connecting member 240, and the reel fixing bracket 221 is fixedly connected to the bottom plate 220, thereby fixing the reel 250 to the bottom plate 220.

Fig. 5 is a perspective view of a reel assembly according to an embodiment of the present invention; fig. 6 is an exploded view of a reel assembly according to an embodiment of the present invention. As shown in fig. 5 in conjunction with fig. 6, the cord reel 250 includes a motor 251 and a cord reel 252, and the cord reel 252 is disposed outside the motor 251, in other words, the motor 251 is wrapped inside the cord reel 252. When the motor 251 rotates, the winding wheel 252 is driven to rotate. Since one end of the cable 300 is fixedly connected to the reel 252, when the reel 252 rotates, the cable 300 may be wound on the reel 252 or the cable 300 may be released on the reel 252.

In the embodiment of the present application, since the motor 251 is located inside the wire winding wheel 252, the motor 251 does not occupy an additional space inside the base station 200, so that the volume of the wire winder 250 can be reduced, and the internal space of the base station 200 can be saved.

Specifically, the motor 251 includes a rotor and a stator (not shown in the figure) coaxially arranged, the rotor is arranged around the stator, namely the rotor is arranged at the outer side of the stator, and the winding wheel 252 is fixedly connected with the rotor. When the motor 251 is operated, the rotor rotates around the stator, thereby rotating the winding wheel 252. In a specific implementation, the motor 251 may be an in-wheel motor.

In order to facilitate the storage of the cable 300, two thread stoppers 2521 are respectively disposed on both sides of the winding wheel 252, and the thread stoppers 2521 extend in a direction away from the axis of the motor 251, i.e., outwardly around the motor shaft 2511. It is understood that in the present embodiment, the axis of the motor 251 is also the axis of the winding wheel 252.

In one possible implementation, the line blocking plate 2521 is substantially planar, and the plane Y of the line blocking plate 2521 is substantially perpendicular to the axis X of the motor 251, as shown in fig. 7. The expression "the line blocking plate 2521 is substantially planar" means that the line blocking plate 2521 is substantially planar when viewed as a whole, but the line blocking plate 2521 is not absolutely planar due to process errors, local chamfers, local protrusions, local hollows, and the like; the "plane Y of the line blocking plate 2521 is substantially perpendicular to the axis X of the motor 251" may be understood as the plane Y of the line blocking plate 2521 is substantially perpendicular to the axis X of the motor 251, but due to process errors and the like, the plane Y of the line blocking plate 2521 is not absolutely perpendicular to the axis X of the motor 251.

It can be understood that, due to the existence of the line blocking plate 2521, the cable 300 can be more conveniently stored on the winding reel 252, and the problem that the cable 300 is jammed and the like due to the fact that the cable 300 slides down on two sides of the winding reel 252 is avoided.

In the present embodiment, the peripheral contour of the baffle 2521 is substantially circular, as shown in fig. 5. Of course, those skilled in the art can set the outer peripheral contour of the line blocking plate 2521 to other shapes, such as square, polygon, etc., according to the actual needs, and the embodiment of the present application does not limit this.

In addition to the above arrangement, in a possible implementation, the thread stopper 2521 may be provided as a curved surface, and the curved surface where the thread stopper 2521 is located is inclined in a direction away from the winding wheel 252 in an extending direction of the thread stopper 2521, as shown in fig. 8A and 8B. The embodiment shown in fig. 8A and 8B is different in that a cross section of the thread stop plate 2521 along the axial direction of the winding wheel 252 in fig. 8A is a straight line, and a cross section of the thread stop plate 2521 along the axial direction of the winding wheel 252 in fig. 8B is a curved line. By adopting the arrangement mode, the opening distance between the two wire blocking plates 2521 can be increased, the cable 300 can be more conveniently stored in the winding wheel 252, and the problems that the cable 300 is blocked and the like due to the sliding of the cable 300 on the two sides of the winding wheel 252 are further avoided.

In addition to the above arrangement, a person skilled in the art may arrange the thread stop plate 2521 only on one side of the winding wheel 252 according to actual needs, which is not limited in the embodiments of the present application.

In a specific implementation, the thread blocking plate 2521 and the winding wheel 252 may be integrally formed or assembled together through a connector, and the thread blocking plate 2521 and the winding wheel 252 may be made of plastic, metal or other materials.

With reference to fig. 6, the wire blocking plate 2521 is further provided with 5 winding posts 2522 at the inner side (the side close to the wire winding wheel 252), and the 5 winding posts 2522 are used for fixing and winding the cable 300. Specifically, one end (tip) of the cable 300 is fixed and wound on the 5 winding posts 2522, and when the winder 250 rotates, the cable 300 can be further wound on the winding wheel 252.

In some application scenarios, for example, when the surface cleaning apparatus 100 is cleaning a window (non-horizontal, e.g., vertical), the surface cleaning apparatus 100 may be dropped due to a loss of pressure on the surface cleaning apparatus 100 or other reasons. It can be appreciated that when the surface cleaning apparatus 100 is dropped, a large impact force is applied to the fixed position of the cable 300 and the winding post 2522. For another example, when the user draws the cable 300 in the base station 200 and reaches the end of the cable 300, if the user applies too much force, a large impact force is also applied to the fixed position of the cable 300 and the winding post 2522.

If the end of the cable 300 is simply and fixedly connected to the winding post 2522, the cable 300 may easily fall off the winding post 2522 due to an impact force. To solve this problem, the embodiment of the present application provides a plurality of winding posts 2522, fixes the end of the cable 300 to one winding post 2522, and then winds the other winding posts 2522.

Referring to fig. 8C, a schematic view of a cable fixing method provided in the embodiment of the present application is shown. In FIG. 8C, 5 winding posts, respectively 25221-25225, are shown. In the orientation shown in fig. 8C, first, the end (point C) of the cable 300 is fixed to the right side of the winding post 25221, then wound from the right side of the winding post 25221 to the right side of the winding post 25222, wound from the right side of the winding post 25222 to the left side of the winding post 25222 in a clockwise direction, wound from the left side of the winding post 25222 to the left side of the winding post 25221, wound from the left side of the winding post 25221 to the right side of the winding post 25223 in a clockwise direction, wound from the right side of the winding post 25223 to the left side of the winding post 25224, protruding between the winding post 25224 and the winding post 25225, and then the cable 300 may be further wound on the winding wheel 252.

It should be noted that fig. 8C is only one possible implementation shown in the embodiment of the present application. Those skilled in the art can arrange other numbers of the winding posts 2522, other relative positions of the winding posts 2522, and other routing manners (winding and fixing manners of the cable 300) in the winding posts 2522 according to actual needs, which all fall within the protection scope of the present application. For example, the number of the winding posts 2522 may be any number of two or more.

Next, another fixing method of the cable provided in the embodiment of the present application is described with reference to fig. 9A to 9E. Fig. 9A is an exploded view of another reel assembly according to the present invention; FIG. 9B is a side view of the reel assembly of FIG. 9A; FIG. 9C is a cross-sectional view taken along A-A in FIG. 9B; FIG. 9D is a front view of the cord reel assembly of FIG. 9A; fig. 9E is a sectional view taken along the direction B-B in fig. 9D.

As shown in fig. 9A to 9E, in the embodiment of the present application, a threading hole 2523 is further disposed on the reel, and the cable wound on the reel can pass through the threading hole 2523 to be in spacing fit with the cable fixing unit inside the reel. Specifically, this spacing cooperation can be interference fit, perhaps fixes etc. through buckle, mounting, and this application embodiment is not specifically limited to this. In order to avoid damage to the cable caused by the threading hole 2523 when the cable passes through the threading hole 2523, a threading protective sleeve 2524 matched with the threading hole 2523 is further disposed at the threading hole 2523, and the threading protective sleeve 2524 may be made of a softer material such as rubber. When the cable passes through the threading hole, the threading protective sleeve 2524 surrounds and is arranged between the side wall of the threading hole 2523 and the cable, so that the threading hole 2523 is prevented from being in direct contact with the cable, and the cable can be protected.

In the embodiment of the present application, the threading hole 2523 is disposed at one side of the take-up reel, and the cable fixing unit is disposed inside the take-up reel at a side close to the threading hole 2523. That is, the threading hole 2523 and the cable fixing unit are disposed on the same side of the winding wheel, and the arrangement mode can facilitate the cable to be directly fixed on the cable fixing unit after passing through the threading hole 2523, thereby avoiding excessive routing inside the winding wheel. In addition, the cable fixing unit is arranged on one side of the winding wheel, so that the functional units in the winding wheel can be conveniently arranged, and the interference between the cable fixing unit and the arrangement position of the motor in the winding wheel is avoided. Of course, those skilled in the art can also arrange the threading hole 2523 and the cable fixing unit at other positions of the reel according to actual needs, which is not limited in the embodiments of the present application.

Referring to fig. 9A and 9E, in the embodiment of the present application, the cable fixing unit includes a cable holder 253, and the cable holder 253 may be fixed to one side of the winding wheel by a cable holder fixing screw 2534. The cable holder 253 is provided with a cable fixing member (an outer copper ring copper sheet 25311 and an inner copper ring copper sheet 25321), and the cable passes through the threading hole 2523 and then is fixedly connected with the cable fixing member, and a dotted line in fig. 9E is an exemplary illustration of a cable path.

It will be appreciated that when power cord 301 or power cord/safety cord integrated cable 302 is included in the cable, it may be desirable to provide electrical contacts for the cable while securing the cable in order to provide power to the cable. Based on this, the reel provided in the embodiment of the present application is further provided with a spring assembly 2533, an outer copper ring 2531 and an inner copper ring 2532 (the outer copper ring 2531 and the inner copper ring 2532 correspond to two electrodes in the power supply circuit, respectively). Wherein, an outer copper ring copper sheet 25311 is arranged on the outer copper ring 2531, and the outer copper ring copper sheet 25311 extends along a direction perpendicular to the plane of the outer copper ring 2531; inner copper ring copper sheets 25321 are arranged on the inner copper ring 2532, and the inner copper ring copper sheets 25321 extend along the direction perpendicular to the plane of the inner copper ring 2532. The outer copper ring 2531 and the outer copper ring 2531 are buckled at one side of the cable fixing frame 253, a through hole matched with the outer copper ring copper sheet 25311 and the inner copper ring copper sheet 25321 is formed in the cable fixing frame 253, and the outer copper ring copper sheet 25311 and the inner copper ring copper sheet 25321 penetrate through the through hole and extend out of the other side of the cable fixing frame 253.

In the embodiment of the present application, the outer copper ring copper sheets 25311 and the inner copper ring copper sheets 25321 form a cable fixing member, that is, after the cable passes through the threading hole 2523, the cable is respectively connected to the outer copper ring copper sheets 25311 and the inner copper ring copper sheets 25321, so as to perform fixing and conducting functions.

In a possible implementation manner, the cable fixing unit further includes a pressure plate 254, and the pressure plate 254 is used for pressing the cable between the cable fixing frame 253 and the pressure plate 254, so that the cable is fixed inside the reel more firmly.

In addition, the spring assembly 2533 is provided with a spring contact 25331, when the spring assembly 2533, the outer copper ring 2531 and the inner copper ring 2532 are assembled together, the spring contact 25331 on the spring assembly 2533 respectively contacts with the outer copper ring 2531 and the inner copper ring 2532, and when the outer copper ring 2531 and the inner copper ring 2532 rotate relative to the spring assembly 2533 (the outer copper ring 2531 and the inner copper ring 2532 can rotate along with the winding wheel), the spring contact 25331 on the spring assembly 2533 slides on the outer copper ring 2531 and the inner copper ring 2532 and keeps electrical contact all the time. The power storage device 230 in the base station 200 is electrically connected to the spring assembly 2533, and a power supply path is formed between the power storage device 230, the spring assembly 2533, the outer copper ring 2531, the inner copper ring 2532, and the cable.

With continued reference to fig. 3-7, the manner in which the reel 250 is secured within the base station 200 will now be described.

Specifically, two reel fixing frames 221 are disposed on the bottom plate 220, the two reel fixing frames 221 are respectively and fixedly connected with the bottom plate 220, and a space for installing the reel 250 is defined between the two reel fixing frames 221, that is, the reel 250 is installed between two reel fixing frame 221 brackets. For example, both ends of the motor shaft 2511 of the reel 250 may be connected to the reel holder 221 at both sides of the reel 250, respectively. In specific implementation, the two reel fixing brackets 221 may be integrally formed, or certainly, may be two independent fixing members, which is not limited in the embodiment of the present invention.

With the above-described reel 250 fixing scheme, the distance between the two reel fixing brackets 221 matches the length of the motor shaft 2511 in the direction of the motor shaft 2511. However, if the distance between the two reel holders 221 is large, the length of the motor shaft 2511 is too long, so that the radial runout of the motor 251 during rotation is large, which affects the stability of the reel 250.

In view of the above problem, in one possible implementation, a reel connector 240 is provided between the reel holder 221 and the motor shaft 2511, that is, both ends of the motor shaft 2511 are respectively fixed to the reel holders 221 on both sides of the motor shaft 2511 by means of the reel connectors 240. With this arrangement, the distance between the two reel holders 221 in the direction of the motor shaft 2511 is greater than the length of the motor shaft 2511. That is, the length of the motor shaft 2511 can be shortened, the radial runout of the motor 251 during rotation can be reduced, and the stability of the reel 250 can be improved.

Of course, the reel connector 240 may be disposed on only one side of the reel 250, and the motor shaft 2511 and the reel holder 221 may be directly connected to each other on the other side of the reel 250, which is not limited in the embodiment of the present invention.

In the implementation shown in fig. 3 to 7, the cord reel connector 240 has two right angle bends, and both ends of the cord reel connector 240 extend in opposite directions. For convenience of explanation, the different positions of the cord reel connector 240 will be referred to as a first connector 241, a second connector 242, and a third connector 243. The first connecting member 241 and the third connecting member 243 are perpendicular to the second connecting member 242, and the first connecting member 241 and the third connecting member 243 extend in opposite directions. The first connecting member 241 is perpendicular to the motor shaft 2511, and is fixedly connected to the motor shaft 2511 via the motor fixing screw 244, the third connecting member 243 is fixedly connected to the reel fixing bracket 221, and the reel fixing bracket 221 is fixed to the bottom plate 220, so as to fix the reel 250 to the bottom plate 220.

It should be noted that the cord reel connecting member 240 described in the above embodiment is only one possible implementation manner in the embodiment of the present application, and those skilled in the art can also configure the cord reel connecting member in other configurations according to actual needs. For example, only one bend may be provided in the cord reel connector. Specifically, the winder connecting part includes a first connecting part and a second connecting part, a right-angle bend is formed between the first connecting part and the second connecting part, the first connecting part is fixedly connected with the end of the motor shaft 2511, and the second connecting part is fixedly connected with the winder fixing frame 221. In addition, the bending in the connecting piece of the reel can be bent to other angles besides a right angle, such as an obtuse angle or an acute angle, and the embodiment of the application does not limit the bending.

In the embodiment of the present application, the cord reel connector 240 is an integrally formed structural member, which may be a plate. Of course, a person skilled in the art may also use a tubular or other irregularly shaped connecting element, which is not limited by the embodiments of the present application. However, they should all satisfy the condition: in the direction of the motor shaft 2511, the distance between the two reel holders 221 is greater than the length of the motor shaft 2511.

In the embodiment of the present application, two reel holders 221 are disposed substantially perpendicular to the bottom plate 220. The phrase "two reel holders 221 are substantially perpendicular to the bottom plate 220" is understood to mean that the extension direction of the reel holders 221 is substantially perpendicular to the bottom plate 220, but the extension direction of the reel holders 221 is not absolutely perpendicular to the bottom plate 220 due to process errors and the like. Of course, those skilled in the art can also tilt the two reel holders 221 on the bottom plate 220 as required, which is not limited in the embodiment of the present invention.

In practical applications, it may be necessary to design a plurality of different base stations 200, and the size of each base station 200 may be different. By adopting the fixing scheme of the winder 250, for base stations 200 with different sizes, the winder 250 can be installed on the corresponding base station 200 only by configuring the corresponding winder connecting piece 240, so that the compatibility of the winder 250 is improved.

In addition, the bottom space of the reel 250 can be enlarged (the space between the two reel holders 221 is enlarged) by the above arrangement, so that other functional modules (for example, a battery and the like) can be conveniently arranged at the bottom of the reel 250.

It can be understood that, during the process of winding or unwinding the cable (releasing the cable 300) by the winder 250, the cable 300 should be prevented from being bent as much as possible, so as not to affect the smoothness of winding or unwinding the cable or cause the cable 300 to be jammed. In general, the cable 300 is more likely to be bent at the outlet 211 of the base station 200, and therefore, the way of installing the outlet 211 is particularly important.

Referring to fig. 10, a schematic structural diagram of a base station provided in the embodiment of the present application is shown. As shown in FIG. 10, an outlet 211 is provided at the top of the housing 210, and one end of a cable 300 wound on a reel 250 is extended out of the outlet 211 to be connected to the surface cleaning apparatus 100. Since the operating position of the surface cleaning apparatus 100 is generally above the base station 200 (e.g., the base station 200 is generally placed on the floor when the surface cleaning apparatus 100 is cleaning a window), locating the outlet 211 at the top of the housing 210 facilitates the outgoing and incoming wires and prevents the cable 300 from bending too much at the outlet 211.

In addition, in the base station 200, the axis of the cord reel 250 is arranged in the horizontal direction, for example, in the left-right direction or in the front-back direction, and the cable 300 can be smoothly transited to the outlet 211 after being wound on the cord reel 250, as shown in fig. 3. On the contrary, if the axis of the cord reel 250 is arranged along the vertical direction (up-down direction), the outlet 211 is arranged at the top of the housing 210, which is equivalent to one side of the cord reel 250, when the cable 300 is pulled out through the outlet 211, a large lateral pulling force is generated in the axial direction of the cord reel 250, which is not beneficial to the rotation of the cord reel 250, and the cable 300 cannot be uniformly wound on the cord reel 250. In a possible implementation manner, in order to reduce the friction force between the cable 300 and the housing at the position of the outlet 211 when the cable 300 is taken out or taken in, a rotatable movable member is further provided at the position of the outlet 211, and the position relationship between the movable member and the outlet 211 is configured as follows: when the cable 300 extends out of the outlet 211, the movable member is located between the cable 300 and the sidewall of the outlet 211, so as to prevent the cable 300 from directly contacting the sidewall of the outlet 211. In the present embodiment, the movable member is a shaft-like movable member, and for convenience of description, the shaft-like movable member is hereinafter referred to as a sliding shaft 262. Of course, the movable member may be configured to be spherical or ellipsoidal by those skilled in the art, and the embodiment of the present application is not limited thereto.

It can be understood that when the cable 300 is pulled close to the sliding shaft 262, the sliding shaft 262 can be driven to rotate, so as to reduce the friction force of the cable 300 at the position of the outlet 211, avoid the damage of the cable 300 caused by the long-time friction of the cable 300, and improve the service life of the cable 300.

Since the cable 300 is drawn in the generally vertical direction at the outlet 211, an axis (rotation axis) of the slide shaft 262 may be arranged in the horizontal direction in order to facilitate the rotation of the slide shaft 262. Of course, a person skilled in the art can also set an included angle between the axis of the sliding shaft 262 and the horizontal direction according to actual needs. It should be noted that, the axis of the sliding shaft 262 should be avoided as much as possible from being perpendicular to the horizontal direction, and if the arrangement is adopted, when the cable 300 is pulled close to the sliding shaft 262, it is not favorable to drive the sliding shaft 262 to rotate, and sliding friction will be generated between the cable 300 and the sliding shaft 262. In a specific implementation, the movable member may be directly fixed at the position of the outlet 211, or may be fixed at the position of the outlet 211 by other connecting members (e.g., a movable member fixing frame). Similarly, taking the sliding shaft 261 as an example, the movable part fixing frame corresponding to the sliding shaft 261 is a sliding shaft fixing frame 261, and the sliding shaft 261 is connected to the sliding shaft fixing frame 261 in a movable connection manner. For convenience of description, the sliding shaft holder 261, the sliding shaft 262, and the pin 263 for fixing the sliding shaft 262 are referred to as the outlet assembly 260, and the following description will be made with reference to the drawings.

Fig. 11 is a schematic structural diagram of an outlet assembly according to an embodiment of the present disclosure. As shown in fig. 11, the outlet assembly 260 includes a slide shaft holder 261, a pin 263, and a slide shaft 262. The shape and size of the slide shaft fixing frame 261 match with the outlet 211, and are used for fixing the position of the outlet 211. The pin 263 passes through the through hole of the sliding shaft 262 and is fixed on the sliding shaft fixing frame 261, and the sliding shaft 262 can rotate relative to the pin 263, and one side of the sliding shaft 262 faces to the middle position of the outlet 211.

It is noted that in the implementation shown in fig. 11, the surface of the slide shaft 262 is planar. However, in some possible implementations, the surface of the sliding shaft 262 may be provided as a curved surface that fits the cable 300. Through this arrangement, can be with cable 300 better spacing in the cambered surface of sliding shaft 262, reduce the swing of cable 300 in the wire winding and unwinding process.

This application embodiment sets up 4 sliding shaft 262 in outlet 211 position, is located four directions (have 4 mutually supported sliding shaft 262 and pin 263) on the front, back, left and right of outlet 211 respectively, is convenient for pull cable 300 in arbitrary direction (cable 300 when arbitrary direction pull, all can not take place direct contact with the lateral wall of outlet 211), does not receive the direction restriction when making cable 300 go out the line, and it is more convenient to use.

In the above embodiment, the sliding shafts 262 are respectively disposed in the front, rear, left, and right directions of the outlet 211, and those skilled in the art can dispose at least two sliding shafts 262 on the same side according to actual needs. For example, in fig. 12A, 2 sliding shafts 262 are provided in the four directions of the front, rear, left, and right of the outlet 211. It is understood that a different number of the sliding shafts 262 may be arranged in different directions, for example, 3 sliding shafts 262 are respectively arranged in the front-rear direction, and 2 sliding shafts 262 are respectively arranged in the left-right direction, which is not limited in the embodiment of the present application.

In practice, the front side of the base station 200 is generally oriented toward the surface to be cleaned, the cable 300 is angled toward the front side after being withdrawn from the base station 200, and the rear sidewall of the outlet 211 is less likely to contact the cable 300. Therefore, in one possible implementation, the sliding shafts 262 may be provided only in the three directions of the front, left, and right of the outlet 211, as shown in fig. 12B. Of course, the sliding shafts 262 may be provided only on the two side walls opposite to the outlet 211. For example, the slide shafts 262 are provided on the front and rear side walls of the outlet 211; alternatively, slide shafts 262 are provided on the left and right side walls of the outlet 211.

In one possible implementation, the outlet 211 is circular in shape, and correspondingly, the sliding shaft 262 may form a ring shape at the position of the outlet 211, as shown in fig. 12C.

Of course, those skilled in the art can set the outlet 211 to have other shapes and set other numbers of sliding shafts 262 at the position of the outlet 211 according to the actual requirement, which is not limited in the present application.

In a possible implementation manner, the base station 200 is further provided with a force application part, and the force application part is configured to provide a force application point for a user so that the user can move the base station 200. For example, in the embodiment of the present application, the force application portion is a handle 212 provided on the top of the base station 200. To avoid the cable 300 from rubbing against the handle 212 during the process of wire outgoing or taking up, the outlet 211 may be disposed in front of the handle 212. The side on which the surface cleaning apparatus housing 213 is generally defined is the front of the base station 200, i.e., the outlet 211 is disposed at a location between the surface cleaning apparatus housing 213 and the handle 212. Of course, those skilled in the art may provide other types of force applying portions according to actual needs, for example, a rigid handle connected to the base station 200 at one end, or a flexible belt connected to the base station at both ends, which is not limited in the embodiments of the present application.

Since the front side of the base station 200 is generally oriented toward the surface to be cleaned during operation, and the cable 300 is inclined toward the front side after being drawn out from the base station 200, the arrangement can avoid the cable 300 from contacting the handle 212 as much as possible, and further avoid the cable 300 from rubbing against the handle 212.

It should be noted that the cord reel 250 provided in the embodiment of the present application can store the cable 300, and can also buffer the impact force generated when the surface cleaning device 100 falls. Specifically, this can be achieved by controlling the torque of the motor 251 in the winder 250, which will be described in detail below.

Referring to fig. 3, in order to facilitate fixing of the electric storage device 230, an electric storage device fixing frame 222 is further disposed on the bottom plate 220, the electric storage device fixing frame 222 is fixedly connected to the bottom plate 220, and the electric storage device 230 is fixed on the bottom plate 220 through the electric storage device fixing frame 222. In a possible implementation manner, the power storage device fixing frame 222 and the reel fixing frame 221 may be integrally formed, and of course, may be two independent fixing members, which is not limited in the embodiment of the present application.

In addition, the base station 200 is provided with a control board 280, and the control board 280 may be a circuit board on which a processor, a memory, etc. are provided to provide the base station 200 and/or the surface cleaning apparatus 100 with corresponding data processing capabilities.

In order to facilitate the storage of the external power cord 400, a hanging lug 214 is further respectively arranged around the outer shell 210 of the base station 200, the hanging lug 214 is a hook with an upward opening, and when the external power cord 400 is not needed, the external power cord 400 can be wound on the outer shell 210 and in the hanging lug 214. It will be appreciated that on the front side of the base station 200, the hanger 214 should be located below the surface cleaning apparatus receiving cavity 213 so as not to allow the external power cord 400 to wind the power cord 301 around the surface cleaning apparatus 100 when the surface cleaning apparatus 100 is placed in the surface cleaning apparatus receiving cavity 213, thereby preventing the surface cleaning apparatus 100 from being removed from the surface cleaning apparatus receiving cavity 213.

In some possible implementations, the surface cleaning apparatus 100 may also be configured with a "wet wipe" function in order to enhance the cleaning effectiveness of the surface cleaning apparatus 100. For example, the surface cleaning apparatus 100 may spray the cleaning liquid on the surface to be cleaned by spraying; alternatively, a cleaning unit (e.g., cloth, sponge, etc.) at the bottom of the surface cleaning apparatus 100 is soaked in the cleaning solution by dropping, and then the surface to be cleaned is wiped by the soaked cleaning unit, thereby improving the cleaning effect.

It will be appreciated that in order to provide a "wet wipe" function, it is often necessary to provide a cleaning liquid containing tank on the surface cleaning apparatus 100 for containing a cleaning liquid (e.g., water or an aqueous solution with added cleaning agents, disinfectants, etc.). It can be appreciated that the cleaning solution is generally heavy, and the placement of the cleaning solution containing tank on the surface cleaning apparatus 100 can increase the weight of the surface cleaning apparatus 100, especially when the surface cleaning apparatus 100 is operated in a "non-horizontal plane," which can place a large burden on the surface cleaning apparatus 100. For example, if the surface cleaning apparatus 100 is attached to the surface to be cleaned by negative pressure, in order to match the weight of the surface cleaning apparatus 100, a larger suction force needs to be provided to the surface cleaning apparatus 100, which may cause problems such as excessive power consumption and increased noise of the surface cleaning apparatus 100; additionally, if the surface cleaning apparatus 100 is too heavy, the speed of movement of the surface cleaning apparatus 100 may also be affected. Alternatively, a cleaning solution containing tank with a small volume is provided on the surface cleaning apparatus 100, the cleaning solution containing tank has a small volume, and the cleaning solution may need to be frequently added during the operation, so that the user experience is poor.

In view of the above problems, the embodiments of the present application provide a solution to the "wet wipe" function. Specifically, the cleaning liquid containing tank 601 is arranged on the base station 200, and the cleaning liquid in the cleaning liquid containing tank 601 is conveyed to the surface cleaning device 100 through the infusion hose 303 and then sprayed on the surface to be cleaned; or a cleaning unit wetting the bottom of the surface cleaning apparatus 100. The following detailed description is made with reference to the accompanying drawings.

Referring to fig. 13, a schematic structural diagram of a surface cleaning system according to an embodiment of the present disclosure is shown. As shown in fig. 13, a cleaning solution containing tank 601 and a first pump module 602 are disposed on the base station 200, the cleaning solution containing tank 601 is used for containing the cleaning solution, a liquid inlet pipe (hereinafter referred to as a first pump module liquid inlet pipe 305) is disposed on the first pump module 602, the first pump module liquid inlet pipe 305 is communicated with the cleaning solution containing tank 601, and a liquid outlet end of the first pump module 602 is further connected to the surface cleaning apparatus 100 (connected to a water inlet of the surface cleaning apparatus 100) through a liquid delivery hose 303. It will be appreciated that the infusion hose 303 may oscillate in response to movement of the surface cleaning apparatus 100 as the surface cleaning apparatus 100 moves, i.e. the infusion hose 303 may accommodate movement of the surface cleaning apparatus 100.

Specifically, the surface cleaning device 100 may further include a nozzle, the nozzle is communicated with the liquid outlet end of the infusion hose 303, and the cleaning liquid can be sprayed on the surface to be cleaned through the nozzle; or, the surface cleaning apparatus 100 is further provided with a dropping hole, the dropping hole is communicated with the liquid outlet end of the infusion hose 303, and further, the cleaning liquid can be dropped on a cleaning unit (for example, cloth, sponge, etc.) at the bottom of the surface cleaning apparatus 100 through the dropping hole to wet the cleaning unit; alternatively, the surface cleaning apparatus 100 is further provided with other cleaning units (e.g., a steam generator, etc.) requiring cleaning liquid, which is not limited by the embodiment of the present application.

The first pump module 602 is used for providing power to transmit the cleaning solution in the cleaning solution containing tank 601 to the surface cleaning device 100 through the infusion hose 303, and further to spray the cleaning solution on the surface to be cleaned through the spray head on the surface cleaning device 100; or by dripping cleaning fluid through a drip hole in the surface cleaning apparatus 100 onto a cleaning unit at the bottom of the surface cleaning apparatus 100.

With continued reference to fig. 13, the cable 300 between the surface cleaning apparatus 100 and the base station 200 includes a power cord 301 in addition to the infusion hose 303. Of course, the cable 300 between the surface cleaning apparatus 100 and the base station 200 may include a safety cord 3021, a power cord/safety cord integrated cable 302, a steam hose 304, or a ventilation tube 308 in addition to the power cord 301. In the present embodiment, to facilitate storage or organization of the cables 300, when two or more cables 300 are present between the surface cleaning apparatus 100 and the base station 200, the two or more cables 300 may be encased within a encasing hose 306. For example, in fig. 13, the power supply line 301 and the infusion tube 303 are covered by a covering tube 306 in the covering tube 306, and the covering tube 306 may be a corrugated tube made of a plastic material.

The cleaning liquid containing box 601 is arranged on the base station 200, and the cleaning liquid containing box has the following advantages:

1) the weight of the surface cleaning apparatus 100 can be reduced, reducing the power consumption of the surface cleaning apparatus 100;

2) when the surface cleaning apparatus 100 is in operation, the base station 200 only needs to be placed in a fixed position (e.g., on the ground), so that a large volume of cleaning solution containing tank 601 can be disposed on the base station 200 to avoid frequent addition of cleaning solution;

3) when the cleaning liquid containing tank 601 is short of cleaning liquid, the cleaning liquid can be directly added into the cleaning liquid containing tank 601 without taking down the surface cleaning device 100 on the surface to be cleaned, that is, without interrupting the operation of the surface cleaning device 100;

4) the surface cleaning device 100 is fixed on the base station 200 by the safety rope, the cleaning solution containing tank 601 can increase the counterweight of the base station 200, and when the surface cleaning device 100 falls, the base station 200 can play a better safety protection role for the surface cleaning device 100.

In order to facilitate the addition of the cleaning liquid in the cleaning liquid containing tank 601, in one possible implementation, the cleaning liquid containing tank 601 is detachably arranged on the base station 200. Specifically, a cleaning liquid containing tank accommodating chamber 215 is provided on the housing 210 of the base station 200, the cleaning liquid containing tank accommodating chamber 215 matches with the cleaning liquid containing tank 601 in size and shape, and the cleaning liquid containing tank 601 is detachably disposed in the cleaning liquid containing tank accommodating chamber 215.

As shown in fig. 13, the cleaning liquid containing tank receiving chamber 215 includes a top opening and a side opening. The size and shape of the top opening is matched to the cross-section of the cleaning liquid containing tank 601 so that the cleaning liquid containing tank 601 can be inserted into the cleaning liquid containing tank containing chamber 215 through the top opening or the cleaning liquid containing tank 601 can be pulled out of the cleaning liquid containing tank containing chamber 215. The side opening is smaller than the side of the cleaning liquid containing tank 601 so as to confine the cleaning liquid containing tank 601 within the cleaning liquid containing tank receiving chamber 215. Of course, in some possible implementations, only the top opening may be provided, and the side opening is not provided, which is not limited by the embodiments of the present application. However, when the side opening is present, the cleaning liquid containing tank 601 may be provided as a transparent tank body so that the user can observe the cleaning liquid remaining amount. Alternatively, a transparent remaining amount observation window through which the user can observe the remaining amount of the cleaning liquid is provided on the cleaning liquid containing tank 601.

In addition, a liquid pouring hole 6011 is further provided at the top of the cleaning liquid containing tank 601, and the cleaning liquid can be added into the cleaning liquid containing tank 601 through the liquid pouring hole 6011. As shown in fig. 10, when the cleaning liquid containing tank 601 is installed in the cleaning liquid containing tank containing chamber 215, the liquid injection hole 6011 is still exposed to the outside of the casing 210 of the base station 200. By adopting the setting mode, even if the cleaning solution containing box 601 is not taken out from the cleaning solution containing box containing cavity 215, the cleaning solution can be added into the cleaning solution containing box 601 through the liquid injection hole 6011, a plurality of cleaning solution adding modes are provided, the use is more flexible, and the user experience is improved.

In one possible implementation, the cleaning liquid receiving tank receiving chamber 215 and the surface cleaning apparatus receiving chamber 213 are respectively disposed at both sides of the housing 210 of the base station 200. I.e. the cleaning liquid containing tank 601 is arranged at the rear side of the base station 200. Since the front side of the base station 200 is usually directed towards the surface to be cleaned during operation, the space in front of the base station 200 is small. For example, the front side of the base station 200 is a glass curtain wall or wall, and the space between the base station 200 and the glass curtain wall or wall is small. If the cleaning liquid containing tank 601 is disposed at the front side of the base station 200, the cleaning liquid containing tank 601 needs to be detached or installed during the operation of the surface cleaning apparatus 100, which results in a small operation space and inconvenience in use. In contrast, there is typically a large space behind the base station 200 to facilitate the removal or installation of the cleaning solution containing tank 601 by the user during operation of the surface cleaning apparatus 100.

It should be noted that fig. 13 is only one possible implementation manner provided by the present application, and should not be taken as a limitation to the scope of the present application. For example, in one possible implementation, the pump module may be disposed on the surface cleaning apparatus 100.

As shown in fig. 14, the surface cleaning apparatus 100 is provided with a second pump module 603, the second pump module 603 is provided with a second pump module inlet pipe (not shown), and the second pump module inlet pipe is communicated with the cleaning solution containing tank 601 in the base station 200 through the infusion hose 303. The second pump module 603 is used for providing power to transfer the cleaning liquid in the cleaning liquid containing tank 601 to the surface cleaning apparatus 100. The liquid outlet end of the second pump module 603 can also be connected with a spray head and/or a liquid dropping hole, so that the cleaning liquid can be sprayed on the surface to be cleaned through the spray head; or by dripping cleaning liquid through a drip hole onto a cleaning unit at the bottom of the surface cleaning apparatus 100. That is, the second pump module 603 can also provide power to spray cleaning liquid onto the surface to be cleaned, or to drip cleaning liquid onto the cleaning unit at the bottom of the surface cleaning apparatus 100.

Other contents of the embodiment of the present application can be referred to the description of the embodiment shown in fig. 13, and for brevity, are not described herein again.

It is understood that at least one of the first pump module 602 and the second pump module 603 is present for delivering cleaning liquid to the surface cleaning apparatus 100.

In one possible implementation, a first pump module 602 may be provided on the base station 200, a second pump module 603 may be provided on the surface cleaning apparatus 100, and the first pump module 602 and the second pump module 603 may be communicated through the infusion hose 303, as shown in fig. 15. This arrangement can increase the pressure in the infusion hose 303, i.e., improve the delivery capacity of the cleaning solution. In some possible implementations, the cleaning liquid in the cleaning liquid containing tank 601 may also be delivered to the surface cleaning apparatus 100 by the first pump module 602. The cleaning solution is sprayed onto the surface to be cleaned, or dropped onto the cleaning unit at the bottom of the surface cleaning apparatus 100, powered by the second pump module 603.

With continued reference to FIG. 13, in the present embodiment, an infusion hose 303 is connected directly between the surface cleaning apparatus 100 and the base station 200. In one possible implementation, in order to facilitate the storage of the infusion tube 303, a reel 250 may be provided on the base station 200, and the infusion tube 303 may be stored or released by the reel 250. The operation principle of the reel 250 can be referred to the description of the above embodiments, and for brevity, the description is omitted here.

In order to further improve the cleaning effect, in a possible implementation manner, the surface cleaning apparatus 100 may be further configured with a "steam cleaning" function, and the oil stain particles on the surface to be cleaned may be dissolved and vaporized by the saturated steam under the action of high temperature and high pressure. Meanwhile, the saturated steam can effectively cut into any fine holes and cracks, and remove stains and residues in the fine holes and cracks.

Fig. 16 is a schematic structural diagram of another surface cleaning system according to an embodiment of the present disclosure, and fig. 17 is a block diagram of a structure corresponding to the surface cleaning system shown in fig. 16 according to an embodiment of the present disclosure. As shown in fig. 16 and fig. 17, a cleaning liquid containing tank 601 and a first steam generator 604 are disposed on the base station 200, the cleaning liquid containing tank 601 is used for containing cleaning liquid, the first steam generator 604 is provided with a liquid inlet pipe (hereinafter referred to as a first steam generator liquid inlet pipe 307), the first steam generator liquid inlet pipe 307 is communicated with the cleaning liquid containing tank 601, an air outlet of the first steam generator 604 is used for being communicated with the surface cleaning apparatus 100 through a steam hose 304 (connected with an air inlet on the surface cleaning apparatus 100), and the first steam generator 604 is used for atomizing the cleaning liquid into high-temperature high-pressure steam and transmitting the steam to the surface cleaning apparatus 100 through the steam hose 304. Specifically, the surface cleaning apparatus 100 may further include a nozzle, or an air outlet, which is connected to the steam hose 304 and can spray steam onto the surface to be cleaned, so as to "steam clean" the surface to be cleaned.

With continued reference to fig. 16, the cable 300 between the surface cleaning apparatus 100 and the base station 200 includes a power cord 301 in addition to the steam hose 304. Of course, the cable 300 between the surface cleaning apparatus 100 and the base station 200 may include a safety cord 3021, a power cord/safety cord integrated cable 302, an infusion hose 303, or a ventilation tube 308 in addition to the power cord 301. In the embodiment of the present application, in order to facilitate the storage or arrangement of the cable 300, when two or more cables 300 exist between the surface cleaning apparatus 100 and the base station 200, the covering hose 306 may cover the two or more cables 300 in the covering hose, and then the two or more cables 300 may be wound on the reel 250 together. For example, in fig. 16, the power cord 301 and the steam hose 304 are covered by the covering hose 306 in the covering hose 306, and the covering hose 306 may be a corrugated tube made of plastic.

The technical scheme provided by the embodiment of the application has the following advantages:

1) the cleaning effect of the surface to be cleaned can be improved by high-temperature steam;

2) the cleaning liquid containing tank 601 is arranged on the base station 200, so that the weight of the surface cleaning device 100 can be reduced, and the power consumption of the surface cleaning device 100 can be reduced;

3) when the surface cleaning apparatus 100 is in operation, the base station 200 only needs to be placed in a fixed position (e.g., on the ground), so that a large volume of cleaning solution containing tank 601 can be disposed on the base station 200 to avoid frequent addition of cleaning solution;

4) when the cleaning solution containing tank 601 is empty of cleaning solution, the cleaning solution can be added directly into the cleaning solution containing tank 601 without removing the surface cleaning apparatus 100 from the surface to be cleaned. That is, the operation of the surface cleaning apparatus 100 need not be interrupted;

5) the surface cleaning device 100 is fixed on the base station 200 by the safety rope, the cleaning solution containing tank 601 can increase the counterweight of the base station 200, and when the surface cleaning device 100 falls, the base station 200 can play a better safety protection role for the surface cleaning device 100.

The specific contents of the cleaning liquid containing tank 601 can be referred to the description of the above embodiments, and for brevity, will not be described again. The following description focuses on the manner in which steam is transmitted between the base station 200 and the surface cleaning apparatus 100, and the manner in which the steam generator is disposed.

It can be understood that if the temperature of the steam decreases during the process of transferring the steam generated in the first steam generator 604 through the steam hose 304, the steam may be liquefied, and the steam cleaning effect may be reduced. This phenomenon is more pronounced, especially when the length of the steam hose 304 is longer.

In view of the above problem, an embodiment of the present application provides a solution that the steam hose 304 is configured as a thermal insulation hose. In particular, the vapor hose 304 may be made of a thermal insulating material to prevent the vapor from liquefying during the transportation process.

In view of the above problems, the embodiments of the present application further provide another solution. The method specifically comprises the following steps: a pressure adjustment module (which may be a pump or a fan, etc.) is provided to adjust the pressure of the steam in the steam hose 304. It is appreciated that as the pressure of the vapor within the vapor hose 304 increases, the vapor may quickly pass through the vapor hose 304 to avoid liquefaction of the vapor. Of course, a heat preservation hose can be adopted at the same time, and a pressure adjusting module is arranged, which is not limited in the embodiment of the application.

In some possible implementations, the pressure of the steam within the steam hose 304 may also be adjusted according to the degree of soiling of the surface to be cleaned. For example, for a surface to be cleaned with a relatively high degree of contamination, a relatively high steam pressure can be generated in the steam hose 304 by the pressure adjustment module to improve the cleaning effect of the surface to be cleaned; for surfaces to be cleaned that are less soiled, a lower steam pressure can be generated in the steam hose 304 by the pressure adjustment module to save cleaning solution and power consumption.

Referring to fig. 18, in a possible implementation manner, the base station 200 is provided with a first pressure adjusting module 606, and the first pressure adjusting module 606 is in communication with the steam hose 304 and can adjust the air pressure in the steam hose 304. In a specific implementation, the first pressure adjusting module 606 is a first pressure increasing module, and the first pressure increasing module is used for increasing the air pressure in the steam hose 304.

Referring to fig. 19, in one possible implementation, a second pressure adjustment module 607 is provided on the surface cleaning apparatus 100, and the second pressure adjustment module 607 is in communication with the steam hose 304 to adjust the air pressure in the steam hose 304. That is, the pressure adjustment module is disposed on the surface cleaning apparatus 100 in this implementation.

In addition, one skilled in the art can set the first pressure adjustment module 606 on the base station 200 and the second pressure adjustment module 607 on the surface cleaning apparatus 100 according to actual needs, as shown in fig. 20. The first pressure adjustment module 606 and the second pressure adjustment module 607 may be in communication with the steam hose 304, either simultaneously or separately, to adjust the pressure of the air within the steam hose 304. In a specific implementation, the second pressure adjustment module 607 is a second pressure increasing module, and the second pressure increasing module is used for increasing the air pressure in the steam hose 304.

In one possible implementation, a steam generator may also be provided on the surface cleaning apparatus 100 in order to avoid liquefaction of the steam during transport. Specifically, the cleaning solution is delivered to the surface cleaning apparatus 100 through the infusion hose 303, and then atomized into high temperature and high pressure steam by the steam generator on the surface cleaning apparatus 100. The following description is made with reference to the accompanying drawings.

Referring to fig. 21, in one possible implementation, a second steam generator 605 is provided in the surface cleaning apparatus 100. The second steam generator 605 includes a second steam generator inlet pipe (not shown) that communicates with the outlet of the first pump module 602 in the base station 200 via the infusion hose 303. Since the first pump module inlet pipe 305 is connected to the cleaning solution containing tank 601, the first pump module 602 can provide power to transfer the cleaning solution in the cleaning solution containing tank 601 to the second steam generator 605 of the surface cleaning apparatus 100 through the fluid hose 303.

Referring to fig. 22, in one possible implementation, a second steam generator 605 and a second pump module 603 are provided in the surface cleaning apparatus 100. The second pump module 603 includes a second pump module liquid inlet pipe (not shown), the second pump module liquid inlet pipe is communicated with the cleaning solution containing tank 601 in the base station 200 through the liquid conveying hose 303, and the liquid outlet of the second pump module 603 is communicated with the second steam generator liquid inlet pipe. That is, in the present embodiment, the cleaning liquid in the cleaning liquid containing tank 601 is delivered to the second steam generator 605 in the surface cleaning apparatus 100 through the liquid delivery hose 303 by the power of the second pump module 603.

Referring to fig. 23, this implementation differs from fig. 22 in that a first pump module 602 is also provided in the base station 200. The first pump module 602 includes a first pump module liquid inlet pipe 305, the first pump module liquid inlet pipe 305 is communicated with the cleaning solution containing tank 601, the liquid outlet of the first pump module 602 is communicated with the second pump module liquid inlet pipe through the liquid delivery hose 303, and the liquid outlet of the second pump module 603 is communicated with the second steam generator liquid inlet pipe. That is, in the present embodiment, the cleaning liquid in the cleaning liquid containing tank 601 is delivered to the second steam generator 605 in the surface cleaning apparatus 100 through the fluid delivery hose 303 by the power of the first pump module 602 and the second pump module 603. This arrangement can increase the pressure in the infusion hose 303, i.e., improve the delivery capacity of the cleaning solution.

For a specific working principle of the first pump module 602 and the second pump module 603 in the embodiment of the present application, reference may be made to the description of the embodiment described in fig. 13, and for brevity, no further description is provided herein.

With continued reference to FIG. 16, in the subject embodiment, the steam hose 304 is connected directly between the surface cleaning apparatus 100 and the base station 200. In one possible implementation, in order to facilitate the storage of the steam hose 304, a reel 250 may be further provided on the base station 200, and the steam hose 304 may be stored or released through the reel 250. The operation principle of the reel 250 can be referred to the description of the above embodiments, and for brevity, the description is omitted here.

In some possible implementations, the surface cleaning apparatus 100 is provided with a suction unit and a vacuum unit. For example, the suction unit may be a cavity disposed at the bottom of the surface cleaning apparatus 100, and the cavity is used to define a closed space with the surface to be cleaned. The vacuum unit can be a fan module or a vacuum pump module, and is communicated with the adsorption unit and used for vacuumizing the adsorption unit, so that negative pressure is generated in the adsorption unit, and the surface cleaning device is adsorbed on the surface to be cleaned.

However, the vacuum pump module or the fan module is heavy, and the arrangement of the vacuum pump module or the fan module on the surface cleaning apparatus 100 increases the weight of the surface cleaning apparatus 100, which causes a large burden on the surface cleaning apparatus 100. For example, to match the weight of the surface cleaning apparatus 100, a greater suction force needs to be applied to the surface cleaning apparatus 100, which may cause problems such as excessive power consumption and increased noise of the surface cleaning apparatus 100.

In order to solve the above problem, the embodiment of the present application provides a split design scheme of an adsorption unit and a vacuum unit.

Referring to fig. 24, a block diagram of another surface cleaning system according to an embodiment of the present disclosure is shown. As shown in fig. 24, the surface cleaning apparatus 100 is provided with an absorption unit 110 and a walking unit 120, wherein the absorption unit 110 is used for defining a closed space with the surface to be cleaned; the walking unit is used for driving the surface cleaning device 100 to walk on the surface to be cleaned. An air duct 710 is provided on the base station 200, a vacuum unit 720 is provided in the air duct 710, and the vacuum unit 720 is used for generating negative pressure in the air duct 710. The surface cleaning apparatus 100 is in communication with the base station 200 via a duct 308, and in particular the duct 308 communicates with the suction unit 110 and the air duct 710 on the surface cleaning apparatus 100. When the vacuum unit 720 operates, a negative pressure is generated in the air duct 710, and since the air duct 710 is communicated with the adsorption unit 110 through the ventilation pipe 308, the negative pressure can be generated in the adsorption unit 110, so that the surface cleaning apparatus 100 can be adsorbed on the surface to be cleaned.

The scheme provided by the embodiment of the application has the following advantages:

1) the weight of the surface cleaning apparatus 100 may be reduced. In this state, the surface cleaning apparatus 100 can be adsorbed on the surface to be cleaned with only a small suction force, reducing power consumption, noise, and the like of the surface cleaning apparatus 100;

2) the surface cleaning apparatus 100 is secured to the base station 200 by a safety line, and the vacuum unit 720 can add a weight to the base station 200, so that the base station 200 can provide better safety protection to the surface cleaning apparatus 100 when the surface cleaning apparatus 100 is dropped.

The following describes a specific implementation manner of a split design of the adsorption unit 110 and the vacuum unit 720 provided in the embodiment of the present application with reference to the drawings.

FIG. 25 is a schematic diagram of another alternative surface cleaning system provided in accordance with an embodiment of the present application; fig. 26 is a cross-sectional view of a surface cleaning system corresponding to that shown in fig. 25 provided by an embodiment of the present application. As shown in fig. 25 and fig. 26, an air duct 710 is provided inside the housing 210 of the base station 200, and the air duct 710 is an air flow passage formed inside the housing 210, and the shape of the air duct is not particularly limited in the embodiment of the present application. Specifically, the air duct 710 includes an air duct inlet 711 (shown in dotted line) and an air duct outlet 712, a fan module 721 (i.e., a vacuum unit 720) is disposed in the air duct 710, and when the fan module 721 operates, a negative pressure is generated in the air duct 710, so that the air flow in the air duct 710 flows from the air duct inlet 711 to the air duct outlet 712. In the embodiment of the present application, the duct outlet 712 is disposed on the housing 210 (a plurality of through holes on the housing 210) of the base station 200.

In addition, a ventilation pipe 308 is disposed at the position of the air duct inlet 711, the other end of the ventilation pipe 308 is connected to an adsorption unit outlet 111 (shown by a dotted line in the figure) of the surface cleaning device 100, and the adsorption unit outlet 111 is communicated with the adsorption unit 110 of the surface cleaning device 100. For example, the suction unit 110 is a cavity disposed at the bottom of the surface cleaning apparatus 100, and the suction unit outlet 111 is communicated with the cavity.

It can be understood that, when the fan module 721 operates, the air flow direction is the adsorption unit 110, the adsorption unit air outlet 111, the ventilation pipe 308, the air duct air inlet 711, the air duct 710, and the air duct air outlet 712, so that when the surface cleaning apparatus 100 is placed on the surface to be cleaned, a negative pressure is generated in the adsorption unit 110, and the surface cleaning apparatus 100 is adsorbed on the surface to be cleaned.

In the embodiment of the present application, in order to facilitate the storage and organization of the ventilation pipe 308, a winder 250 is further provided in the base station 200, and when the winder 250 rotates, the ventilation pipe 308 can be wound on the winder 250 or released from the winder 250. The specific working principle of the reel 250 can be referred to the description of the above embodiment, and for brevity, the detailed description is omitted here.

In addition, in order to facilitate the connection between the ventilation pipe 308 and the air duct inlet 711, the air duct inlet 711 may be opened on the reel 250, that is, the air duct 710 passes through the reel 250 and is communicated with the ventilation pipe 308. For example, on a reel wheel 252 of a reel 250. When the ventilation pipe 308 is communicated with the air duct air inlet 711, the end part of the ventilation pipe 308 can be fixed on the winding wheel 252, and the structure is simple. Of course, a person skilled in the art may also open the air duct inlet 711 at another position, and after the ventilation pipe 308 is communicated with the air duct inlet 711, the ventilation pipe 308 is fixed on the reel 250, which is not limited in the embodiment of the present application.

Referring to fig. 26, in the embodiment of the present application, the motor 251 of the reel 250 is disposed inside the air duct 710. When the fan module 721 operates, an air flow is generated inside the air duct 710, and the flowing air flow can cool the motor 251. That is to say, in the embodiment of the present application, while the negative pressure is provided to the adsorption unit 110, the temperature of the motor 251 can be reduced, thereby preventing the motor 251 from being overheated and prolonging the service life of the motor 251. Of course, a person skilled in the art may also dispose the motor 251 outside the air duct 710, which is not limited by the embodiment of the present application.

Additionally, the cable 300 connecting the base station 200 to the surface cleaning apparatus 100 may include, in addition to the air duct 308, a power cord 301, a safety cord 3021, a power cord/safety cord integrated cable 302, a steam hose 304, or an infusion hose 303. In the embodiment of the present application, in order to facilitate the storage or arrangement of the cable 300, when two or more cables 300 exist between the surface cleaning apparatus 100 and the base station 200, the covering hose 306 may cover the two or more cables 300 in the covering hose, and then the two or more cables 300 may be wound on the reel 250 together. That is, the plurality of types of cables 300 are received and released at the same time by the reel 250.

In one possible implementation, the reel 250 may not be disposed inside the base station 200, and the ventilation pipe 308 is directly connected to the air inlet 711 of the air duct inside the base station 200.

It is understood that the base station 200 is provided with various functional units, such as a reel 250, an electric storage device 230, a cleaning liquid container 601, and the like. The arrangement positions of the functional units in the base station 200 affect the performance of the base station 200, and two different arrangement schemes are provided below.

The first arrangement scheme is as follows:

referring to fig. 4, in the embodiment of the present application, the electric storage device 230 is located below the reel 250. Since the power storage device 230 is heavy, disposing the power storage device 230 at the bottom of the base station 200 can lower the center of gravity of the base station 200, and improve the stability of the base station 200. For example, when the surface cleaning apparatus 100 is dropped, the dropping moment may generate a large impact force to the base station 200. The lower center of gravity of the base station 200 may prevent the surface cleaning apparatus 100 from tipping over, falling, and the like under the impact of a falling impact force, and may provide a better safety protection effect for the surface cleaning apparatus 100.

In addition, in the embodiment of the present application, since the outlet 211 is disposed on the top of the base station 200, and the winder 250 is disposed above the power storage device 230, the winder 250 is closer to the outlet 211, which facilitates the outgoing of the cable, and avoids the cable 300 from being too long routed inside the base station 200.

In a specific implementation, the power storage device 230 is located at the bottom of the reel 250, and at least partial overlapping exists between the power storage device 230 and the reel 250 in the vertical projection.

Preferably, the projection of the power storage device 230 in the vertical direction covers the projection of the reel 250 in the vertical direction; alternatively, the projection of the cord reel 250 in the vertical direction covers the projection of the power storage device 230 in the vertical direction. This arrangement can make the arrangement of each functional unit in the base station 200 more compact, and reduce the volume of the base station 200.

In some possible implementations, when the cleaning liquid containing tank 601 is provided on the base station 200, the cleaning liquid containing tank 601 is provided at a side of the power storage device 230 and/or the cord reel 250. After the cleaning liquid is added into the cleaning liquid containing tank 601, the cleaning liquid containing tank 601 is heavy, and the cleaning liquid containing tank 601 is arranged close to the bottom plate 220, so that the gravity center of the base station 200 can be reduced. In addition, since the user needs to add the cleaning liquid into the cleaning liquid containing tank 601 during the operation, the arrangement of the cleaning liquid containing tank 601 at the side of the electric storage device 230 and/or the reel 250 is more convenient for the user to operate (directly adding the cleaning liquid into the cleaning liquid containing tank 601 or taking out the cleaning liquid containing tank 601 from the base station 200). The specific arrangement of the cleaning liquid containing tank 601 can be referred to the description of the above embodiments, and for brevity, will not be described again.

In some possible implementations, when the surface cleaning device receiving chamber 213 is provided on the base station 200, the surface cleaning device receiving chamber 213 is provided at a side portion of the power storage device 230 and/or the cord reel 250, so that the user can take out or place the surface cleaning device 100 in the surface cleaning device receiving chamber 213.

In some possible implementations, when the cleaning liquid containing tank 601 and the surface cleaning device containing chamber 213 are both provided on the base station 200, the cleaning liquid containing tank 601 may be disposed at the rear side of the base station 200, and the surface cleaning device containing chamber 213 may be disposed at the front side of the base station 200. Specifically, with the electric storage device 230 as a reference, the cleaning liquid housing tank 601 is located on the rear side of the electric storage device 230, and the surface cleaning device housing chamber 213 is located on the front side of the electric storage device 230; with the reel 250 as a reference, the cleaning liquid containing tank 601 is located at the rear side of the reel 250, and the surface cleaning device containing chamber 213 is located at the front side of the reel 250.

By adopting the technical scheme provided by the embodiment of the application, in the using process, a user can place the side (front side) where the surface cleaning device accommodating cavity 213 is located towards the surface to be cleaned, so that the surface cleaning device 100 can be directly placed on the surface to be cleaned after the surface cleaning device 100 is taken out of the surface cleaning device accommodating cavity 213, and the surface cleaning device 100 does not need to bypass the base station 200. Meanwhile, since there is generally a large space behind the base station 200, the cleaning liquid containing tank 601 is disposed at the rear side of the base station 200, which facilitates the user to detach or install the cleaning liquid containing tank 601 during the operation of the surface cleaning apparatus 100.

Of course, in some possible implementations, the user may also position the surface cleaning apparatus receiving cavity 213 on the left or right side of the base station; alternatively, the cleaning liquid containing tank 601 is disposed on the left or right side of the base station, which is not particularly limited by the embodiment of the present application.

The second arrangement scheme comprises the following steps:

fig. 27 is a schematic structural diagram of a base station according to an embodiment of the present application; fig. 28 is a cross-sectional view corresponding to the base station shown in fig. 27 according to an embodiment of the present application. As shown in fig. 27 in combination with fig. 28, in the embodiment of the present application, the electric storage device 230 and the cord reel 250 are both disposed near the bottom plate 220, and the electric storage device 230 is located at one side of the cord reel 250. It is understood that disposing both the power storage device 230 and the cord reel 250 close to the bottom plate 220 can further lower the center of gravity of the base station 200 and improve the stability of the base station 200. For example, when the surface cleaning apparatus 100 is dropped, the dropping moment may generate a large impact force to the base station 200. The base station 200 has a lower center of gravity, which prevents the surface cleaning apparatus 100 from tipping over or falling under the impact force of falling, and provides a better safety protection for the surface cleaning apparatus 100.

In a specific implementation, the power storage device 230 is located at one side of the reel 250, and at least partial overlapping exists between the power storage device 230 and the reel 250 in the projection in the front-back direction.

Preferably, the projection of the power storage device 230 in the front-rear direction covers the projection of the cord reel 250 in the up-down direction; alternatively, the projection of the reel 250 in the front-rear direction covers the projection of the power storage device 230 in the up-down direction. This arrangement can make the arrangement of each functional unit in the base station 200 more compact, and reduce the volume of the base station 200.

In one possible implementation, the cord reel 250 is located on the front side of the electrical storage device 230. Since the outlet 211 is disposed at the top of the base station 200 and near the front side, when the cord reel 250 and the power storage device 230 are disposed in parallel, the cord reel 250 is disposed at the front side of the power storage device 230, so that the cord reel 250 is closer to the outlet 211, which facilitates the outlet of the cord, and avoids the cable 300 from being too long routed inside the base station 200.

In one possible implementation, when the cleaning liquid containing tank 601 is provided on the base station 200, the cleaning liquid containing tank 601 is provided at a side portion of the electric storage device 230 and/or the reel 250. Specifically, the cleaning liquid containing tank 601 at least partially overlaps with the electrical storage device 230 in a projection in the front-rear direction; alternatively, the cleaning liquid containing tank 601 and the reel 250 have at least partial overlapping projection in the front-back direction. After the cleaning liquid is added into the cleaning liquid containing tank 601, the cleaning liquid containing tank 601 is heavy, and the cleaning liquid containing tank 601 is arranged close to the bottom plate 220, so that the gravity center of the base station 200 can be reduced. Since the user needs to add the cleaning liquid into the cleaning liquid containing tank 601 during the operation, the arrangement of the cleaning liquid containing tank 601 at the side of the power storage device 230 and/or the reel 250 is more convenient for the user to operate (directly adding the cleaning liquid into the cleaning liquid containing tank 601 or taking the cleaning liquid containing tank 601 out of the base station 200).

In some possible implementations, the cleaning liquid containing tank may be disposed at a rear side of the electricity storage device 230 and/or the cord reel 250. Specifically, the cord reel 250, the electricity storage device 230, and the cleaning liquid containing tank 601 may be disposed in this order from front to rear.

In some possible implementations, when the surface cleaning apparatus receiving chamber 213 is provided on the base station 200, the surface cleaning apparatus receiving chamber 213 is provided at a side portion of the power storage apparatus 230 and/or the cord reel 250, so that the user can take out or place the surface cleaning apparatus 100 in the surface cleaning apparatus receiving chamber 213. Specifically, the surface cleaning device housing chamber 213 may be provided on the front side of the power storage device 230 and/or the cord reel 250.

In some possible implementations, when the cleaning liquid containing tank 601 and the surface cleaning device containing chamber 213 are both provided on the base station 200, the cleaning liquid containing tank 601 may be disposed at the rear side of the base station 200, and the surface cleaning device containing chamber 213 may be disposed at the front side of the base station 200. Specifically, the surface cleaning device housing chamber 213, the reel 250, the electric storage device 230, and the cleaning liquid housing tank 601 may be provided in this order from front to rear.

It should be noted that the product form of the surface cleaning device is not limited in the embodiments of the present application. For ease of understanding, the working principle of the surface cleaning apparatus will be briefly described below in connection with two different product configurations.

The surface cleaning device I comprises:

referring to fig. 29, a schematic structural diagram of a surface cleaning apparatus according to an embodiment of the present disclosure is shown. As shown in fig. 29, the surface cleaning apparatus includes a main body, and an adsorption unit 110 is disposed at a bottom of the main body, and the adsorption unit 110 can adsorb the surface cleaning apparatus to a surface to be cleaned. Specifically, the suction unit 110 may be a cavity disposed at the bottom of the main body, the cavity being used to define a sealed space with a surface to be cleaned (e.g., glass), and when a negative pressure is generated in the sealed space, the surface cleaning apparatus is sucked on the surface to be cleaned.

The bottom of the main body is further provided with a walking unit 120, and the walking unit 120 is used for driving the surface cleaning device to walk on the surface to be cleaned. Specifically, the traveling unit 120 may be a wheel type traveling unit or a crawler type traveling unit, or the like. It will be appreciated that the main body should also be provided with a drive unit which cooperates with the walking unit 120, by means of which the walking unit 120 can be driven to operate in order to drive the surface cleaning apparatus to walk over the surface to be cleaned.

It should be noted that fig. 29 is only an exemplary illustration of the surface cleaning apparatus according to the embodiment of the present application, and should not be taken as a limitation to the scope of the present application.

For example, in one possible implementation, the bottom of the main body is also provided with a cleaning unit. When the surface cleaning device walks on the surface to be cleaned, the surface to be cleaned can be cleaned through the cleaning unit. Specifically, the cleaning unit may be a rolling brush, a wiping unit, or the like, and the wiping unit may be a sponge, cloth, paper, or the like.

In a possible realization, a vacuum unit is also provided on the main body. The vacuum unit is used to generate a negative pressure in the adsorption unit 110. Specifically, the vacuum unit may be a pump or a blower, or the like.

A second surface cleaning device:

referring to fig. 30, a schematic structural diagram of another surface cleaning apparatus according to an embodiment of the present disclosure is shown. As shown in fig. 30, the self-moving cleaning apparatus includes a first cleaning unit 130, the first cleaning unit 130 is configured to define a first space with a surface to be cleaned, and when a negative pressure is generated in the first space, the first cleaning unit 130 can be adsorbed on the surface to be cleaned; the second cleaning unit 140, the second cleaning unit 140 is used for defining a second space with the surface to be cleaned, and when negative pressure is generated in the second space, the second cleaning unit 140 can be adsorbed on the surface to be cleaned; a link arm 150, a first end of the link arm 150 being connected with the first cleaning unit 130 by a first pivot 151, and a second end of the link arm 150 being connected with the second cleaning unit 140 by a second pivot 152; and the driving unit is used for driving the first cleaning unit 130 to rotate relative to the second cleaning unit 140, driving the second cleaning unit 140 to rotate relative to the first cleaning unit 130, and further driving the self-moving cleaning device to walk on the surface to be cleaned. It is understood that, in this embodiment, the first cleaning unit 130 and the second cleaning unit 140 simultaneously correspond to the traveling unit of the surface cleaning apparatus.

Referring to fig. 31, a schematic walking diagram of the surface cleaning apparatus shown in fig. 30 is provided according to an embodiment of the present application. As shown in fig. 31, in the initial position, the first cleaning unit 130 is located at a position P1, and the second cleaning unit 140 is located at a position P2; controlling the second cleaning unit 140 to be fixed, the first cleaning unit 130 to rotate in the direction T1 relative to the second cleaning unit 140, and the first cleaning unit 130 to reach the position P3; the first cleaning unit 130 is controlled to be stationary, the second cleaning unit 140 is rotated in the direction T2 with respect to the first cleaning unit 130, and the second cleaning unit 140 reaches the position P4. By analogy, the first cleaning unit 130 and the second cleaning unit 140 travel alternately to realize the travel of the surface cleaning device on the surface to be cleaned.

It should be noted that fig. 30 is only an exemplary illustration of the surface cleaning apparatus according to the embodiment of the present application, and should not be taken as a limitation to the scope of the present application.

For example, in one possible implementation, the surface cleaning apparatus further includes a vacuum unit for communicating the first space and the second space, so that the first space and the second space generate a negative pressure, and the first cleaning unit 130 and the second cleaning unit 140 are adsorbed on the surface to be cleaned.

In one possible implementation, the vacuum unit comprises a first vacuum device and a second vacuum device. The first vacuum device is used for being communicated with the first space to enable the first space to generate negative pressure, and the second vacuum device is used for being communicated with the second space to enable the second space to generate negative pressure. That is, two independent vacuum devices are provided, respectively, by which the negative pressure state of the first space and the second space is controlled, respectively.

In one possible implementation, the vacuum unit includes a first gas valve, a second gas valve, and a third vacuum device. Specifically, the first space is communicated through a first air valve, and the second space is communicated through a second air valve; when the first air valve is opened, the third vacuum device is communicated with the first space, so that negative pressure is generated in the first space; when the second air valve is opened, the third vacuum device is communicated with the second space, so that negative pressure is generated in the second space. That is, in this implementation, the negative pressure state of the first space and the second space is controlled by one vacuum device.

The vacuum device related to the embodiment of the present application may be a vacuum pump or a fan, and the embodiment of the present application does not specifically limit this.

In one possible implementation, the drive unit comprises a first drive device and a second drive device. Wherein the first driving means is used for driving the first cleaning unit 130 to rotate relative to the link arm 150; the second driving means is for driving the second cleaning unit 140 to rotate relative to the link arm 150. That is, two independent driving devices are provided, respectively, to independently drive the rotation of the first cleaning unit 130 and the second cleaning unit 140.

In one possible implementation, the driving unit includes: the first transmission device, the second transmission device and the third driving device. Specifically, the first cleaning unit 130 is connected to the first driving device through a first transmission device, and the first driving device is driven by a third driving device to drive the first cleaning unit 130 to rotate relative to the link arm 150; and is connected to the second cleaning unit 140 through a second transmission device, and is used for driving the second transmission device to drive the second cleaning unit 140 to rotate relative to the link arm 150 through a third driving device. That is, the rotation of the first cleaning unit 130 and the second cleaning unit 140 may be driven by one driving device, respectively, in the present implementation.

The driving device related to the embodiments of the present application may be a motor or other power device, and the embodiments of the present application do not specifically limit this.

In one possible implementation manner, the first cleaning unit 130 and the second cleaning unit 140 may be a sponge, cloth, paper, or the like, and when the first cleaning unit 130 and the second cleaning unit 140 move relative to the surface to be cleaned, the surface to be cleaned may be wiped so as to remove dust, dirt, and the like from the surface to be cleaned.

In one possible implementation, the surface cleaning apparatus shown in fig. 29 and 30 may be a double-sided cleaning apparatus including a master and a slave that are attracted to both sides of a surface to be cleaned by magnetic force. It is understood that when the surface cleaning apparatus is a double-sided cleaning apparatus, the suction unit or the space for generating the negative pressure may not be provided at the bottom of the surface cleaning apparatus.

It should be noted that fig. 29 and 30 are only exemplary illustrations of the surface cleaning apparatus according to the embodiment of the present application, and other product forms of the surface cleaning apparatus are possible, and the embodiment of the present application is not particularly limited thereto.

Referring to fig. 32A to 32C, schematic diagrams of application scenarios provided in the embodiments of the present application are shown. In this application scenario, the surface to be cleaned is a window. When surface cleaning apparatus 100 is performing a cleaning operation on a window, it is connected to base station 200 by safety line 3021. Specifically, it is connected to a reel in the base station 200 through a safety rope 3021. The specific connection mode of the safety rope 3021 and the reel can be referred to the description of the above embodiments, and will not be described herein again.

During the cleaning operation of the surface cleaning apparatus 100, the reel may be set to a "jammed" state in which the safety cord 3021 cannot be pulled out of the base station 200, corresponding to being directly fixed to the base station 200. When the surface cleaning apparatus 100 falls down on a window due to a pressure loss of the suction unit or other reasons (the state shown in fig. 32B), the surface cleaning apparatus 100 can be pulled by the safety cord 3021 (the state shown in fig. 32C), thereby preventing a safety accident from being caused by the fall of the surface cleaning apparatus 100.

However, if the cord reel remains "stuck" when the surface cleaning apparatus 100 is dropped, a large impact force (force of the safety cord 3021 against the base station 200) may be generated on the base station 200 at the moment when the safety cord 3021 of the surface cleaning apparatus 100 and the base station 200 are tightened, and the base station 200 may be toppled or rolled over by the impact force. Alternatively, the impact may cause disconnection of the safety line 3021 at the connection point or breakage of the safety line 3021 itself, thereby causing a safety accident.

In view of the above problems, the embodiment of the present application provides a method for controlling a drop of a surface cleaning apparatus 100, which can release a reel from a "stuck" state when the surface cleaning apparatus 100 drops, and apply a damping force on a reel by a motor in the reel to cushion an impact force on a base station 200, thereby achieving a stable drop of the surface cleaning apparatus 100.

Referring to fig. 33, a schematic flow chart of a method for controlling a fall of a surface cleaning apparatus according to an embodiment of the present disclosure is shown. The method can be applied to the base station 200 described in the above embodiment, as shown in fig. 33, which mainly includes the following steps.

Step S3301: and judging whether a drop event exists, wherein the drop event is that the surface cleaning device drops on the surface to be cleaned.

In one possible implementation, when the surface cleaning apparatus 100 is dropped (as shown in fig. 32B), the surface cleaning apparatus 100 may detect the drop signal and may transmit the drop signal to the base station 200. When the base station 200 receives a drop signal sent by the surface cleaning apparatus 100, it is determined that a drop event exists. Specifically, whether the surface cleaning apparatus 100 is dropped or not can be detected by an acceleration sensor or a pressure sensor provided on the surface cleaning apparatus 100 (when the surface cleaning apparatus 100 is dropped, a pressure loss phenomenon occurs in the adsorption unit of the surface cleaning apparatus 100).

Wherein the surface cleaning apparatus 100 and the base station 200 may be communicatively connected by wire or wirelessly so that the surface cleaning apparatus 100 can transmit a drop signal to the base station 200. Of course, besides the drop signal in this scenario, other information interaction may be performed between the surface cleaning apparatus 100 and the base station 200, which is not described in this embodiment again.

When the surface cleaning apparatus 100 and the base station 200 are communicatively connected by wire, the cable shown in the above embodiment further includes a signal line through which the surface cleaning apparatus 100 and the base station 200 communicate.

When surface cleaning apparatus 100 and base station 200 are communicatively coupled wirelessly, the communication network coupling surface cleaning apparatus 100 and base station 200 may be a local area network or a wide area network that is switched via a relay (relay) device. When the communication network is a local area network, the communication network may be a wifi hotspot network, a wifi p2P network, a bluetooth network, a zigbee network, or a Near Field Communication (NFC) network, for example. When the communication network is a wide area network, the communication network may be, for example, a third generation mobile communication technology (3rd-generation wireless telephone technology, 3G) network, a fourth generation mobile communication technology (4G) network, a fifth generation mobile communication technology (5th-generation mobile communication technology, 5G) network, a Public Land Mobile Network (PLMN) for future evolution, the internet, or the like.

In one possible implementation, the presence of a fall event can be determined by the rotational speed of the reel. For example, during the cleaning operation of the surface cleaning apparatus 100, the torque of the reel is set to zero or a small value by the motor. In this state, when the safety cord 3021 is pulled, the spool can be rotated. It can be understood that when the surface cleaning apparatus 100 falls, the winding wheel can be driven to rotate rapidly, and therefore, whether the fall event exists can be judged according to the rotation speed of the winding wheel. Specifically, a reel rotational speed threshold may be set, and when the detected rotational speed of the reel exceeds a preset reel rotational speed threshold, it is determined that a drop event exists. In the concrete implementation, the detection of the rotating speed of the winding wheel can be realized by arranging a Hall element or an encoder on the winding wheel.

In addition, the rotation of the winding wheel can drive the motor to rotate. Therefore, whether a falling event exists can be judged according to the rotating speed of the motor. Specifically, a motor speed threshold may be set, and when the detected motor speed exceeds the preset motor speed threshold, it is determined that a drop event exists. In specific implementation, the detection of the rotating speed of the motor can be realized by arranging a Hall element or an encoder on the motor.

In some possible implementations, whether there is a fall time may also be determined from the cable release length. Specifically, a cable release length threshold value can be set, and the cable release length can be determined in real time by the winder according to the number of rotation turns of the motor or the number of rotation turns of the winding wheel. And judging that a falling event exists according to the fact that the cable release length of the winding wheel is not smaller than a preset cable release length threshold value.

It can be appreciated that in the drop event detection method described above, the response speed to detecting a drop event by the acceleration sensor of the surface cleaning apparatus 100 is faster, which allows a drop event to be detected as soon as the surface cleaning apparatus 100 begins to drop. For example, a fall event can be detected in the state shown in fig. 32B. In other detection methods, a fall event can only be detected when the safety line 3021 is taut. As shown, a fall event is only detectable in the state shown in fig. 32C.

Of course, other methods may be adopted by those skilled in the art to detect a fall event, and the embodiments of the present application do not limit this.

Step S3302: the motor is controlled to generate a first torque on the reel spool for damping a second torque on the reel spool by the surface cleaning apparatus in response to the presence of the fall event.

For convenience of description, the torque generated on the winding wheel by the motor is referred to as "first torque", and the torque generated on the winding wheel by the surface cleaning device 100 falling is referred to as "second torque". It should be noted that the "first torque" and the "second torque" are not fixed values, and may be a continuously or discontinuously changing value, as will be described in detail below. In the embodiment of the present application, when the magnitudes of the "first torque" and the "second torque" are compared, the magnitudes of the "first torque" and the "second torque" are the same at the same time.

In the embodiment of the application, when a falling event exists, the winder is controlled to be switched from a 'blocking' state to a 'releasing' state, or the winder is controlled to be always kept in the 'releasing' state. The "locked" state means that the reel cannot rotate under the action of external force, for example, when the safety rope 3021 is pulled, the reel cannot rotate, that is, the safety rope 3021 cannot be pulled out; the "release" state means that the reel is rotated by an external force, for example, when the safety rope 3021 is drawn out, the reel is rotated, that is, the safety rope 3021 is drawn out, or the "release" state means that the winding wheel is rotated by a motor, for example, the motor rotates the winding wheel according to the existence of a falling event, and the safety rope 3021 is released.

When there is a drop event, a first torque is applied to the take-up reel by controlling the torque of the motor according to a drop control strategy to cushion a second torque on the take-up reel, thereby achieving a stable landing of the surface cleaning apparatus 100. Specifically, according to the formula: if the mass and speed of the object are constant, the acting force is inversely proportional to the acting time, where F is the acting force, t is the acting time, m is the mass of the object, and v is the speed of the object. The embodiment of the application can increase the falling time (the state of being blocked relative to the winder) of the surface cleaning device 100, namely, can increase the acting time of the impact force on the winding wheel, so as to reduce the impact force generated by the falling event on the winding wheel, and enable the surface cleaning device 100 to land more stably.

To achieve a more even landing of the surface cleaning apparatus 100, the first torque may be controlled according to different landing control strategies, which are described separately below.

A first fall control strategy:

and controlling the motor to generate a first torque on the winding wheel according to a first drop control strategy according to the drop time in the drop event.

Specifically, at a first moment, the first torque is opposite to the second torque in direction, and at a moment when the first torque is smaller than the second torque, the first moment is a moment when the first torque starts to be generated on the winding wheel. It will be appreciated that in order to dampen the second torque, the direction of the first torque should be opposite to the direction of the second torque, and at the moment when the first torque starts to be generated on the reel, the first torque should be smaller than the second torque. On the contrary, if the first torque is larger than or equal to the second torque at the first moment, the surface cleaning device falls under the action of the first torque and cannot drive the reel to rotate, and the reel is in a 'blocked' state and cannot buffer the second torque.

From the perspective of force analysis, since the reel is in the "released" state, the force of the safety rope 3021 on the base station 200 is equivalent to the force between the reel and the motor, i.e. the first torque. That is, the magnitude of the impact of the safety rope 3021 against the base station 200 corresponds to the first torque, and therefore, the impact of the safety rope 3021 against the base station 200 can be controlled by the magnitude of the first torque.

In one possible implementation, the first torque gradually increases to be greater than the second torque from a first time to a second time, the second time being a time when the surface cleaning apparatus stops falling. That is, the surface cleaning apparatus is caused to fall smoothly between the first time and the second time by applying a first torque to the reel. Specifically, ignoring factors such as friction, air resistance, etc., the drop speed of the surface cleaning apparatus 100 gradually increases when the first torque is less than the second torque; when the first torque equals the second torque, the drop speed of the surface cleaning apparatus 100 remains unchanged; when the first torque is greater than the second torque, the drop speed of the surface cleaning apparatus 100 gradually decreases.

For example, in fig. 34 (abscissa T is time, ordinate T is torque), the first torque gradually increases from the first time T1, the first torque is less than the second torque between time intervals T1-T', and the surface cleaning apparatus 100 accelerates to fall; between time intervals t' -t2, where the first torque is greater than the second torque, the surface cleaning apparatus 100 gradually decelerates until the surface cleaning apparatus 100 stops, enabling the surface cleaning apparatus 100 to land smoothly. Wherein t' is the moment when the first torque and the second torque are equal.

In another possible implementation, the first torque may be controlled to gradually increase to be greater than the second torque and then gradually decrease from the first time t1 to the second time t2, wherein the first torque is not less than the second torque during the gradual decrease of the first torque. For example, the first torque is controlled to be gradually decreased at a time between time intervals t' -t2 in fig. 34, but it should be ensured that the first torque is always greater than or equal to the second torque. In this implementation, deceleration of surface cleaning apparatus 100 may be achieved with less torque, reducing the force of safety cord 3021 on base station 200 as much as possible. In the process of controlling the first torque to gradually decrease, the first torque may be controlled to linearly and uniformly decrease, or the first torque may be controlled to gradually decrease according to a non-linear curve, which is not particularly limited in the embodiment of the present application.

In addition, in order to further reduce the impact force generated at the base station 200 at the moment when the safety rope 3021 is tightened, the embodiment of the present application sets a buffering time interval, such as time intervals t0-t1 in fig. 34. T0 represents the moment when the safety rope 3021 is tightened, i.e., the moment when the second torque is generated on the reel. That is, at the time t0 when the second torque is generated on the reel, the first torque applied to the reel is 0, that is, the first torque is not generated.

Of course, the skilled person may also not set the buffering time interval, that is, the first torque greater than 0 and less than the second torque is generated on the winding wheel from the time t0, which is not particularly limited by the embodiment of the present application. It should be noted that fig. 34 is only an exemplary illustration, and the variation curve of the first torque is not particularly limited in the embodiment of the present application.

A second fall control strategy:

controlling the motor to generate a first torque on the take-up reel according to a second fall control strategy based on the cable release length in the fall event.

Specifically, the winder can determine the cable release length in real time according to the number of rotation turns of the motor or the number of rotation turns of the winding wheel. A first cable release length is set, the first cable release length being a length that begins to produce a first torque on the reel. The first torque is opposite in direction to the second torque at the first cable release length and less than the second torque at the first torque. It can be appreciated that in order to dampen the second torque, the direction of the first torque should be opposite to the direction of the second torque, and the first torque should be less than the second torque when it starts to be generated on the reel. On the contrary, if the first torque is controlled to be larger than or equal to the second torque when the first cable is released for length, the surface cleaning device falls under the action of the first torque and cannot drive the reel to rotate, and the reel is in a 'blocked' state and cannot buffer the second torque.

In one possible implementation, a second cable release length is also provided, the second cable release length being the length at which the surface cleaning apparatus stops falling. Specifically, from a first cable release length to a second cable release length, the first torque gradually increases to be greater than the second torque. For example, the first cable release length is 2.5 meters, the second cable release length is 3.5 meters, and between 2.5 meters and 3.5 meters of cable release, the surface cleaning apparatus is caused to fall smoothly by applying a first torque to the reel.

For example, in FIG. 35 (with the abscissa L being cable release length and the ordinate T being torque), the first torque gradually increases from the first cable release length L1, with the first torque being less than the second torque between cable release length intervals L1-L', and the surface cleaning apparatus 100 is accelerated to fall; between cable release length intervals L' -L2, where the first torque is greater than the second torque, surface cleaning apparatus 100 gradually decelerates until surface cleaning apparatus 100 stops, enabling surface cleaning apparatus 100 to land smoothly. Wherein the cable release length L' is a cable release length where the first torque and the second torque are equal.

In another possible implementation, the first torque may be controlled to gradually decrease after gradually increasing to be greater than the second torque from the first cable release length L1 to the second cable release length L2, wherein the first torque is not less than the second torque during the gradually decreasing of the first torque. For example, in fig. 35 the first torque is controlled to decrease gradually at a certain time between the cable release length intervals L' -L2, but it should be ensured that the first torque is always greater than or equal to the second torque. In this implementation, deceleration of surface cleaning apparatus 100 may be achieved with less torque, reducing the force of safety line 3021 on base station 200 as much as possible. In the process of controlling the first torque to gradually decrease, the first torque may be controlled to linearly and uniformly decrease, or the first torque may be controlled to gradually decrease according to a non-linear curve, which is not particularly limited in the embodiment of the present application.

In addition, in order to further reduce the impact force generated on the base station 200 at the moment when the safety rope 3021 is tightened, the embodiment of the present application provides cable relief length buffer sections, such as cable relief length sections L0-L1 in fig. 35. Here, L0 is the moment when the safety rope 3021 is tightened, i.e., the moment when the second torque is generated on the reel. That is, at the time L0 when the second torque is generated on the winding wheel, the first torque applied to the winding wheel is 0, that is, the first torque is not generated.

Of course, a person skilled in the art may also not set the cable release length buffer section, that is, the first torque greater than 0 and less than the second torque is generated on the reel starting from the cable release length L0, which is not particularly limited by the embodiment of the present application.

It should be noted that fig. 35 is only an exemplary illustration, and the variation curve of the first torque is not particularly limited in the embodiment of the present application.

A third fall control strategy:

and controlling the motor to generate a first torque on the take-up reel according to a third fall control strategy according to the fall speed in the fall event.

In particular implementations, the base station 200 can obtain the drop velocity of the surface cleaning apparatus 100 in the following ways: first, a falling speed may be detected by an acceleration sensor provided on the surface cleaning apparatus 100 and the detected falling speed is transmitted to the base station 200; secondly, the rotation speed of the winding wheel can be detected by a hall element or an encoder arranged on the winding wheel, and then the falling speed of the surface cleaning device 100 can be determined; third, the rotational speed of the motor can be detected by a hall element or encoder disposed on the motor, thereby determining the drop speed of the surface cleaning apparatus 100.

In some possible implementations, if the drop speed of the surface cleaning apparatus 100 is gradually increased, the first torque is controlled to be gradually increased to be greater than the second torque; and/or, if the drop speed of the surface cleaning apparatus 100 is gradually reduced, controlling the first torque to be gradually reduced, and the first torque to be greater than the second torque. Specifically, during the accelerated drop of the surface cleaning apparatus 100, it is described that the first torque is smaller than the second torque, and the first torque is controlled to be gradually increased so as to perform deceleration control on the surface cleaning apparatus 100 when the first torque is larger than the second torque; during the process of the surface cleaning apparatus 100 falling at a reduced speed, the first torque is said to be greater than the second torque, and the first torque is controlled to be gradually reduced so as to achieve the reduced speed of the surface cleaning apparatus 100 with a smaller torque and to reduce the force of the safety line 3021 on the base station 200 as much as possible. It will be appreciated that in controlling the first torque to gradually decrease, it should be ensured that the first torque is always greater than the second torque in order to avoid the surface cleaning apparatus 100 from resuming an accelerated fall.

In this application embodiment, can adjust the size of first moment of torsion in real time through falling speed, realize the accurate control of first moment of torsion.

In one possible implementation, when the surface cleaning apparatus 100 stops falling (falling speed is 0), the first torque and the second torque may be controlled to be equal so as to fix the surface cleaning apparatus 100 in the corresponding positions. At this point, the user may manually lift the surface cleaning apparatus 100 and reposition it on the surface to be cleaned; or to inspect the surface cleaning apparatus 100.

In one possible implementation, after the surface cleaning apparatus 100 stops falling, the motor may be further controlled to generate a third torque on the reel to pull the surface cleaning apparatus 100 up to the predetermined position. That is, when the surface cleaning apparatus 100 is dropped, the surface cleaning apparatus 100 is automatically pulled up by the motor.

In specific implementation, the first torque can be controlled by controlling the magnitude of the reverse current or the self-locking current of the motor. Of course, the output torque of the motor may be controlled in different ways according to different types of motors, and the embodiment of the present application is not limited to this.

Corresponding to the embodiment, the embodiment of the application also provides a base station applied to the surface cleaning device. The base station comprises a reel and a controller for executing the method of the above method embodiment. In a specific implementation, the controller may be a Micro Controller Unit (MCU), or other device having data storage and data processing capabilities, which is not specifically limited in this embodiment of the present application.

It is noted that, in this document, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.

The above-described embodiments of the present application do not limit the scope of the present application.

Claims

1. A base station for use in a surface cleaning apparatus, the base station defining a front-to-back direction thereon, the base station comprising:

a cord reel for receiving or releasing the cable;

2. The base station according to claim 1, wherein a projection of the power storage device in the front-rear direction covers a projection of the reel in the front-rear direction.

3. The base station according to claim 1, wherein a projection of the reel in the front-rear direction covers a projection of the power storage device in the front-rear direction.

4. The base station according to claim 1, wherein the reel is located on a front side of the power storage device.

5. The base station of claim 1, wherein the base station further comprises:

6. The base station according to claim 5, wherein there is at least a partial overlap of the cleaning liquid containing tank and the projection of the electrical storage device in the front-rear direction.

7. The base station according to claim 5, wherein the cleaning liquid containing tank and the reel have at least a partial overlap in projection in the front-rear direction.

8. The base station of claim 5, wherein the cleaning solution containing tank is removably attached to the base station.

9. The base station according to claim 5, wherein the cleaning liquid containing tank is located at a rear side of the power storage device and/or the reel.

10. The base station as claimed in claim 9, wherein the cleaning liquid containing tank is provided at a rear side of the electricity accumulating device provided at a rear side of the reel.

11. The base station according to any of claims 5-10, characterized in that the base station further comprises:

the surface cleaning device comprises a shell, wherein a surface cleaning device accommodating cavity is formed in the shell and used for limiting the surface cleaning device on the shell, and the surface cleaning device accommodating cavity is located on the side portion of the winder and/or the power storage device.

12. The base station according to claim 11, wherein the surface cleaning device housing chamber is located at a front side of the cord reel and/or the power storage device.

13. The base station of claim 12, wherein the surface cleaning device accommodating chamber, the reel, the power storage device, and the cleaning liquid accommodating tank are provided on the base station in this order from front to rear.

14. A base station for use with a surface cleaning apparatus, the base station defining a front-to-back direction thereon, the base station comprising:

the surface cleaning device comprises a shell, a surface cleaning device accommodating cavity and a force application part are arranged on the shell, the surface cleaning device accommodating cavity is used for limiting the surface cleaning device on the shell, and the force application part is used for providing a force application point for a user;

a cleaning liquid containing tank for containing a cleaning liquid;

15. A surface cleaning system comprising a surface cleaning apparatus and a base station as claimed in any of claims 1 to 14, the base station and the surface cleaning apparatus being connected by a cable.