Base station and surface cleaning system for use in a surface cleaning device

Abstract

The application discloses a base station applied to a surface cleaning device and a surface cleaning system. The base station comprises: a power storage device, which is used for supplying power to the surface cleaning device through a cable connected between the base station and the surface cleaning device; and a cable reel, which is used for winding or releasing the cable. The power storage device is located on one side of the cable reel, and the projections of the power storage device and the cable reel in the front-rear direction at least partially overlap. In the application, the power storage device and the cable reel are arranged close to the bottom plate, so that the gravity center of the base station can be further lowered, and the stability of the base station can be improved.

Description

Technical Field

[0001] This application relates to the field of cleaning technology, and in particular to a base station and surface cleaning system for use in surface cleaning devices. Background Technology

[0002] Surface cleaning devices, such as window cleaning robots, are a type of smart home appliance. They adhere firmly to glass by using a built-in vacuum pump or fan to create negative pressure. Window cleaning robots typically have a cloth at their base; as the robot moves across the glass, it wipes away dirt and grime, thus cleaning the glass.

[0003] In related technologies, a base station is configured for the surface cleaning device, and relevant functional units are set on the base station to achieve the corresponding functions in conjunction with the surface cleaning device.

[0004] However, the arrangement of various functional units in a base station affects its performance, and existing technologies do not offer a good solution. Summary of the Invention

[0005] This application provides a base station and a surface cleaning system for use in a surface cleaning device, specifically providing an arrangement scheme for the functional units in the base station.

[0006] In a first aspect, embodiments of this application provide a base station for a surface cleaning device, wherein a forward and backward direction is defined on the base station, and the base station includes:

[0007] An energy storage device is provided for supplying power to the surface cleaning device via a cable connecting the base station and the surface cleaning device.

[0008] A cable reel for receiving or releasing the cable;

[0009] The energy storage device is located on one side of the cable reel, and the projections of the energy storage device and the cable reel in the front-back direction at least partially overlap.

[0010] In one possible implementation, the projection of the energy storage device in the front-back direction overlaps the projection of the cable reel in the front-back direction.

[0011] In one possible implementation, the projection of the reel in the front-back direction overlaps the projection of the energy storage device in the front-back direction.

[0012] In one possible implementation, the reel is located on the front side of the energy storage device.

[0013] In one possible implementation, the base station further includes:

[0014] A cleaning fluid container, which is used to contain cleaning fluid, is located on the side of the energy storage device and / or the reel.

[0015] In one possible implementation, the projection of the cleaning fluid container and the energy storage device in the front-back direction at least partially overlaps.

[0016] In one possible implementation, the projection of the cleaning fluid container and the reel in the front-back direction at least partially overlaps.

[0017] In one possible implementation, the cleaning fluid container is detachably connected to the base station.

[0018] In one possible implementation, the cleaning fluid container is located behind the energy storage device and / or the reel.

[0019] In one possible implementation, the cleaning fluid container is located behind the energy storage device, which is located behind the cable reel.

[0020] In one possible implementation, the base station further includes:

[0021] The housing has a surface cleaning device receiving cavity, which is used to limit the surface cleaning device on the housing. The surface cleaning device receiving cavity is located on the side of the reel and / or the energy storage device.

[0022] In one possible implementation, the surface cleaning device housing is located in front of the cable reel and / or the energy storage device.

[0023] In one possible implementation, the base station is provided with, from front to back, the surface cleaning device accommodating cavity, the cable reel, the energy storage device, and the cleaning fluid accommodating tank.

[0024] Secondly, embodiments of this application provide a base station for a surface cleaning device, wherein a forward and backward direction is defined on the base station, and the base station includes:

[0025] The housing has a surface cleaning device receiving cavity and a force application part. The surface cleaning device receiving cavity is used to limit the surface cleaning device on the housing, and the force application part is configured to provide a force application point for the user.

[0026] An energy storage device is disposed inside the housing, and the energy storage device is used to supply power to the surface cleaning device through a cable connecting the base station and the surface cleaning device;

[0027] A cable reel, disposed inside the housing, for receiving or releasing the cable;

[0028] A cleaning fluid container, wherein the cleaning fluid container is used to contain cleaning fluid;

[0029] The energy storage device is located on one side of the cable reel, and the projections of the energy storage device and the cable reel in the front-back direction at least partially overlap.

[0030] Thirdly, embodiments of this application provide a surface cleaning system, including a surface cleaning device and a base station as described in any of the first aspects, wherein the base station and the surface cleaning device are connected by a cable.

[0031] In this embodiment, the energy storage device and the cable reel are both positioned close to the base plate, which can further lower the center of gravity of the base station and improve its stability. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1A This is a schematic diagram illustrating the working state of a surface cleaning system provided in an embodiment of this application;

[0034] Figure 1B This is a schematic diagram of the storage state of a surface cleaning system provided in an embodiment of this application;

[0035] Figure 2A This application provides a schematic diagram of a work scene switching embodiment;

[0036] Figure 2B This is another schematic diagram of working scenario switching provided in an embodiment of this application;

[0037] Figure 3 This is a schematic diagram of the internal structure of a base station provided in an embodiment of this application;

[0038] Figure 4 A cross-sectional view of a base station along the front-to-back direction is provided for an embodiment of this application;

[0039] Figure 5 A three-dimensional structural schematic diagram of a cable reel assembly provided in an embodiment of this application;

[0040] Figure 6 An exploded view of a cable reel assembly provided in an embodiment of this application;

[0041] Figure 7 A cross-sectional view of a cable reel assembly provided in an embodiment of this application;

[0042] Figure 8A This is a schematic diagram of the structure of a winding reel provided in an embodiment of this application;

[0043] Figure 8B This is a schematic diagram of another type of winding reel provided in an embodiment of this application;

[0044] Figure 8C This is a schematic diagram of a cable fixing method provided in an embodiment of this application;

[0045] Figure 9A An exploded view of another cable reel assembly provided in an embodiment of this application;

[0046] Figure 9B for Figure 9A Side view of the cable reel assembly shown;

[0047] Figure 9C For along Figure 9B Cross-sectional view along the AA direction;

[0048] Figure 9D for Figure 9A The main view of the cable reel component shown;

[0049] Figure 9E For along Figure 9D Cross-sectional view in the middle BB direction;

[0050] Figure 10 This is a schematic diagram of the structure of a base station provided in an embodiment of this application;

[0051] Figure 11 This is a schematic diagram of the structure of an outlet assembly provided in an embodiment of this application;

[0052] Figure 12A A schematic diagram illustrating a sliding shaft configuration according to an embodiment of this application;

[0053] Figure 12B A schematic diagram illustrating another way of setting the sliding shaft according to an embodiment of this application;

[0054] Figure 12C A schematic diagram illustrating another way of setting the sliding shaft according to an embodiment of this application;

[0055] Figure 13 This is a schematic diagram of the structure of a surface cleaning system provided in an embodiment of this application;

[0056] Figure 14A structural block diagram of a surface cleaning system provided in an embodiment of this application;

[0057] Figure 15 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0058] Figure 16 This is a schematic diagram of another surface cleaning system provided in an embodiment of this application;

[0059] Figure 17 The embodiments provided in this application are related to Figure 16 The structural block diagram corresponding to the surface cleaning system shown is shown below;

[0060] Figure 18 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0061] Figure 19 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0062] Figure 20 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0063] Figure 21 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0064] Figure 22 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0065] Figure 23 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0066] Figure 24 A structural block diagram of another surface cleaning system provided in an embodiment of this application;

[0067] Figure 25 This is a schematic diagram of another surface cleaning system provided in an embodiment of this application;

[0068] Figure 26 The embodiments provided in this application are related to Figure 25 The cross-sectional view corresponding to the surface cleaning system shown;

[0069] Figure 27 This is a schematic diagram of the structure of a base station provided in an embodiment of this application;

[0070] Figure 28 The embodiments provided in this application are related to Figure 27 The cross-sectional view corresponding to the base station shown;

[0071] Figure 29This is a schematic diagram of the structure of a surface cleaning device provided in an embodiment of this application;

[0072] Figure 30 This is a schematic diagram of another surface cleaning device provided in an embodiment of this application;

[0073] Figure 31 Provided for the embodiments of this application Figure 30 A schematic diagram of the movement of the surface cleaning device shown;

[0074] Figures 32A-32C This is a schematic diagram of an application scenario provided by an embodiment of this application;

[0075] Figure 33 This is a schematic flowchart of a surface cleaning device drop control method provided in an embodiment of this application;

[0076] Figure 34 This is a schematic diagram illustrating the change of a first torque over time, provided as an embodiment of this application.

[0077] Figure 35 This is a schematic diagram illustrating the change of a first torque with the cable release length, as provided in an embodiment of this application.

[0078] The symbols in the diagram represent: 100-Surface cleaning device, 110-Adsorption unit, 111-Adsorption 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-Outer shell, 211-Cable outlet, 212-Handle, 213-Surface cleaning device housing cavity, 214-Hanging ear, 215-Cleaning liquid housing cavity, 220-Base plate, 221-Cable reel mounting bracket, 2 22-Energy storage device mounting bracket; 230-Energy storage device; 240-Cable reel connector; 241-First connector; 242-Second connector; 243-Third connector; 244-Motor mounting screw; 250-Cable reel; 251-Motor; 2511-Motor shaft; 252-Cable reel; 2521-Wire stop plate; 2522-Winding post; 2523-Wire hole; 2524-Wire guide sleeve; 253-Cable mounting bracket; 2531-Outer copper ring; 25311-Outer copper ring copper sheet; 2532-Inner copper ring. 25321-Inner copper ring / copper sheet, 2533-Spring assembly, 25331-Spring contact, 2534-Cable fixing bracket fixing screw, 254-Wire clamping plate, 260-Outlet assembly, 261-Sliding shaft fixing bracket, 262-Sliding shaft, 263-Pin, 270-Adapter, 280-Control board, 300-Cable, 301-Power cord, 302-Power cord / safety rope integrated cable, 3021-Safety rope, 303-Infusion hose, 304-Steam hose, 305-First pump module inlet pipe, 306- Covered hose, 307-First steam generator inlet pipe, 308-Ventilation pipe, 400-External power cord, 500-Power socket, 601-Cleaning fluid container, 6011-Injection port, 602-First pump module, 603-Second pump module, 604-First steam generator, 605-Second steam generator, 606-First pressure adjustment module, 607-Second pressure adjustment module, 710-Air duct, 711-Air duct inlet, 712-Air duct outlet, 720-Vacuum unit, 721-Fan module. Detailed Implementation

[0079] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0080] A surface cleaning device is a self-moving cleaning device that can clean a work surface while moving on the surface to be cleaned (such as glass, also known as the surface to be cleaned).

[0081] The following explanation uses a window cleaning robot as the surface cleaning device and a window as the surface to be cleaned. To power the window cleaning robot, it typically has a power cord. One end of the power cord connects to the robot, and the other end connects to a power outlet (e.g., a 220V household outlet). Additionally, to prevent the robot from falling during cleaning and causing accidents, it usually has a safety rope. One end of the safety rope connects to the robot, and the other end is used for securing it (e.g., to a window or table, depending on the robot's working environment). If the robot falls from the window, the safety rope can hold it in place, preventing an accident. In some implementations, the power cord and safety rope may be integrated into a single cable harness.

[0082] In practical applications, window cleaning robots typically need to operate in multiple independent work environments. For example, a room may have multiple windows, and the robot needs to clean each window individually. However, in the aforementioned solutions, the robot's work environment is often constrained by the location of the power outlet, the length of the power cord, or the anchoring position of the safety rope, resulting in poor environmental adaptability. For instance, if a window lacks a power outlet or a safety rope anchoring point, the robot cannot clean it. Furthermore, using these solutions, moving the robot between windows is cumbersome for the user, further hindering its mobility. For example, when moving the robot from one window to another, the user must unplug the power cord and untie the safety rope at the previous window, then plug it back in and re-attach the safety rope at the next window, leading to a poor user experience.

[0083] It should be noted that the above description uses a window cleaning robot as an example, but this application does not limit the surface cleaning device or its application scenarios. For example, in some possible implementations, the bottom of the surface cleaning device may not have an adsorption unit, in which case the surface cleaning device can be used for floor cleaning; in addition, besides windows, the surface cleaning device can also clean ceilings, walls or other surfaces, and this application does not limit this.

[0084] To address the aforementioned issues, this application provides a split-type design, which expands the applicable scenarios for the surface cleaning device and improves its mobility. The following description is in conjunction with the accompanying drawings.

[0085] Figure 1A This is a schematic diagram illustrating the working state of a surface cleaning system provided in an embodiment of this application. Figure 1B This is a schematic diagram illustrating the storage state of a surface cleaning system provided in an embodiment of this application. Figure 1A and combined Figure 1B As shown, the surface cleaning system includes a surface cleaning device 100, a base station 200, and a cable 300. One end of the cable 300 is connected to the surface cleaning device 100, and the other end is connected to the base station 200. This application embodiment does not limit the type of cable 300; those skilled in the art can configure the cable 300 between the surface cleaning device 100 and the base station 200 according to actual needs.

[0086] For example, the cable 300 can be a safety rope and / or a power cord. Alternatively, it can be an integrated power cord / safety rope cable, meaning the same cable integrates the functions of both. In other applications, the cable 300 may also include ventilation ducts, signal lines, infusion hoses, and / or steam hoses. When two or more cables 300 are connected simultaneously between the base station 200 and the surface cleaning device 100, for ease of storage and organization, the two or more cables 300 can be wrapped in a covering hose 306 (e.g., Figure 13 and Figure 16 As shown, for example, the covered hose 306 can be a corrugated pipe.

[0087] In one possible implementation, the base station 200 is equipped with an energy storage device 230 (see [link]). Figure 3 and Figure 4 The energy storage device 230 can be an energy storage device such as a battery. The energy storage device 230 can power the surface cleaning device 100 via the power cord in the cable 300. Additionally, the safety rope in the cable 300 can be fixed to the base station 200 (either directly connected to the base station or connected to a cable reel in the base station, as described in detail below). Therefore, the working environment of the surface cleaning device 100 is not restricted by the location of the power socket, the length of the power cord, or the fixing position of the safety rope, improving the environmental adaptability of the window cleaning robot.

[0088] Corresponding to the energy storage device 230, an adapter 270 is also provided in the base station 200 (see Figure 3 ), Adapter 270 is used to connect to power outlet 500 via external power cord 400 (see Figure 2B The energy storage device 230 can be charged. Specifically, the energy storage device 230 in the base station 200 can be charged when the surface cleaning device 100 is idle, or the energy storage device 230 in the base station 200 can be charged during the operation of the surface cleaning device 100. This embodiment of the application does not limit this.

[0089] In addition, a surface cleaning device receiving cavity 213 is provided on the outside of the base station 200. The size and shape of the surface cleaning device receiving cavity 213 are matched with the surface cleaning device 100, and it is used to limit the surface cleaning device 100 on the base station 200, such as... Figure 1B As shown, this prevents the surface cleaning device 100 from falling off the base station 200 during its movement.

[0090] See Figure 2A This is a schematic diagram illustrating a work scenario switching method provided in an embodiment of this application. Figure 2A As shown, after cleaning window A, the surface cleaning system needs to be moved from window A to window B for cleaning. During the movement, the surface cleaning device 100 can be confined within the surface cleaning device receiving cavity 213. Figure 2A (As shown in the stowed state), at this time, the surface cleaning device 100 and the base station 200 are equivalent to a whole, which is easy to move. After moving the surface cleaning system to the window B position, the surface cleaning device 100 is taken out from the surface cleaning device receiving cavity 213 and placed in the window B to continue the cleaning work.

[0091] See Figure 2B This is a schematic diagram illustrating another working scenario switching provided in an embodiment of this application. Figure 2B As shown, after cleaning window A, the surface cleaning system needs to be moved from window A to the location corresponding to the power outlet 500 (e.g., a corner of the wall) for charging (charging the power storage device 230 within the base station 200). During the movement, the surface cleaning device 100 can be confined within the surface cleaning device receiving cavity 213. Figure 2B In its stored state, the surface cleaning device 100 and the base station 200 function as a single unit, facilitating movement. During charging, the surface cleaning device 100 can also be stored, saving space and simplifying operation.

[0092] In summary, when moving the surface cleaning system from one work scene to another, there is no need to plug or unplug the power cord or untie / tie the safety rope. Furthermore, the surface cleaning device 100 and the base station 200 can be combined into a single unit, making it easy to move and switch flexibly between multiple work scenes.

[0093] In one possible implementation, the surface cleaning device receiving cavity 213 is disposed on one side of the housing 210 so that the user can remove the surface cleaning device 100 from the surface cleaning device receiving cavity 213 or place the surface cleaning device 100 in the surface cleaning device receiving cavity 213.

[0094] Specifically, the surface cleaning device receiving cavity 213 includes a first opening and a second opening, and the first opening and the second opening are connected. This arrangement makes it easier for the user to place or remove the surface cleaning device 100 in the surface cleaning device receiving cavity 213.

[0095] In practical applications, users typically place the side of the surface cleaning device receiving cavity 213 facing the surface to be cleaned, so that after removing the surface cleaning device 100 from the surface cleaning device receiving cavity 213, the surface cleaning device 100 can be placed directly on the surface to be cleaned without having to bypass the base station 200.

[0096] For ease of explanation, the side where the surface cleaning device accommodating cavity 213 is located is defined as the front side of the outer casing 210, and the six directions of the base station 200 (front, back, left, right, up, down, etc.) are defined in the base station 200. Figure 3 (As shown). In some possible implementations, "up" may also be called "top" and "down" may also be called "bottom".

[0097] Figure 3 This is a schematic diagram of the internal structure of a base station provided in an embodiment of this application. Figure 4 This is a cross-sectional view of a base station along the front-to-back direction, provided as an embodiment of this application. Figure 3 and combined Figure 4 As shown, the base station 200 includes a base plate 220 and a housing 210. The housing 210 can be fastened to the base plate 220 to form the internal space of the base station 200. The aforementioned surface cleaning device accommodating cavity 213 refers to an accommodating space formed on the outside of the housing 210 that matches the surface cleaning device 100. In this embodiment, the first opening is located on the side of the housing 210, specifically on the front side of the housing 210, and the second opening is located on the top of the housing 210.

[0098] In order to confine the surface cleaning device 100 within the surface cleaning device receiving cavity 213, in one possible implementation, the bottom surface (the side opposite to the second opening) of the surface cleaning device receiving cavity 213 is inclined relative to the horizontal plane, the side surface (the side opposite to the first opening) of the surface cleaning device receiving cavity 213 is inclined relative to the vertical plane, and the horizontal projection of the side surface of the surface cleaning device receiving cavity 213 covers the horizontal projection of the bottom surface of the surface cleaning device receiving cavity 213, and the vertical projections of the side surface and the bottom surface of the surface cleaning device receiving cavity 213 are connected.

[0099] The relative positional relationship between the surface cleaning device accommodating cavity 213 and the horizontal and vertical planes refers to the relative positional relationship between the surface cleaning device accommodating cavity 213 and the horizontal and vertical planes when the base station 200 is placed on a horizontal support surface (e.g., the ground). When the base station 200 is placed on a horizontal support surface, the base plate 220 of the base station 200 is parallel to the horizontal plane and perpendicular to the vertical plane. Therefore, the horizontal plane can be understood as a plane parallel to the base plate 220, and the vertical plane can be understood as a plane perpendicular to the base plate 220.

[0100] For example, in Figure 3 In the orientation shown, along the front-to-back direction, the bottom surface of the surface cleaning device receiving cavity 213 gradually slopes downward; along the bottom-to-up direction, the sides of the surface cleaning device receiving cavity 213 gradually slope backward. This arrangement allows gravity to confine the surface cleaning device 100 within the surface cleaning device receiving cavity 213, preventing the surface cleaning device 100 from falling out of the cavity during the operation of the mobile base station 200.

[0101] It should be noted that those skilled in the art may also use other methods to confine the surface cleaning device 100 within the surface cleaning device receiving cavity 213. For example, an elastic bandage can be wrapped around the side of the housing, and the elasticity of the bandage can confine the surface cleaning device 100 within the surface cleaning device receiving cavity 213. This application embodiment does not impose specific limitations on the method of confining the surface cleaning device 100 within the surface cleaning device receiving cavity 213.

[0102] In addition, to further improve the ease of movement of the surface cleaning system, a cable reel 250 is also provided in the base station 200. When it is necessary to move the surface cleaning system from one work scene to another, the cable reel 250 can be used to first store the cable 300 into the base station 200 (e.g., Figure 1B As shown in the diagram, after moving the surface cleaning system to the target location, the cable 300 is then pulled out of the base station 200 (e.g., in the state shown). Figure 1A (as shown in the diagram). In specific implementation, the user can select the length of the cable 300 pulled out of the base station 200 according to the actual working scenario; or, the length of the cable 300 pulled out of the base station 200 can be controlled by the surface cleaning device or the control unit in the base station. This application embodiment does not impose specific limitations on this.

[0103] The working principle of the reel 250 will be explained in detail below with reference to the accompanying drawings.

[0104] Please continue reading. Figure 3In this embodiment, the reel 250 is fixed to the reel mounting bracket 221 via the reel connector 240. The reel mounting bracket 221 is fixedly connected to the base plate 220, thereby fixing the reel 250 to the base plate 220.

[0105] Figure 5 A three-dimensional structural schematic diagram of a cable reel assembly provided in an embodiment of this application; Figure 6 An exploded view of a cable reel assembly provided in an embodiment of this application. Figure 5 and combined Figure 6 As shown, the cable reel 250 includes a motor 251 and a reel 252. The reel 252 is fitted over the motor 251; in other words, the motor 251 is enclosed inside the reel 252. When the motor 251 rotates, it drives the reel 252 to rotate. Since one end of the cable 300 is fixedly connected to the reel 252, when the reel 252 rotates, the cable 300 can be wound onto the reel 252 or unwound from it.

[0106] In this embodiment, since the motor 251 is located inside the reel 252, the motor 251 will not occupy additional space inside the base station 200, thus reducing the volume of the reel 250 and saving internal space of the base station 200.

[0107] Specifically, the motor 251 includes a rotor and a stator (not shown in the figure) arranged coaxially. The rotor is positioned around the stator, that is, the rotor is located outside the stator, and the reel 252 is fixedly connected to the rotor. When the motor 251 is running, the rotor rotates around the stator, thereby driving the reel 252 to rotate. In a specific implementation, this motor 251 can be a hub motor.

[0108] To facilitate the storage of the cable 300, a cable guide plate 2521 is provided on each side of the reel 252. The cable guide plate 2521 extends away from the axis of the motor 251, that is, it extends outward with the motor shaft 2511 as the center. It can be understood that in this embodiment, the axis of the motor 251 is also the axis of the reel 252.

[0109] In one possible implementation, the wire baffle 2521 is approximately planar, and the plane Y containing the wire baffle 2521 is approximately perpendicular to the axis X of the motor 251, such as... Figure 7As shown. The statement "the baffle plate 2521 is roughly a plane" can be understood as follows: from an overall perspective, the baffle plate 2521 is basically a plane, but due to factors such as manufacturing errors, local chamfers, local protrusions, and local hollowing out, the baffle plate 2521 is not an absolutely flat plane; the statement "the plane Y where the baffle plate 2521 is located is roughly perpendicular to the axis X of the motor 251" can be understood as follows: the plane Y where the baffle plate 2521 is located is basically perpendicular to the axis X of the motor 251; however, due to factors such as manufacturing errors, the plane Y where the baffle plate 2521 is located is not absolutely perpendicular to the axis X of the motor 251.

[0110] Understandably, the presence of the cable retainer 2521 makes it easier to store the cable 300 on the reel 252, preventing the cable 300 from slipping off the sides of the reel 252 and causing problems such as the cable 300 getting stuck.

[0111] In this embodiment, the outer periphery of the wire baffle 2521 is approximately circular, such as... Figure 5 As shown. Of course, those skilled in the art can set the outer periphery of the baffle plate 2521 to other shapes according to actual needs, such as square, polygon, etc., and the embodiments of this application do not limit this.

[0112] In addition to the above-mentioned configuration, in one possible implementation, the wire stop plate 2521 can be configured as a curved surface, and the curved surface containing the wire stop plate 2521 is inclined in the direction away from the winding wheel 252 in the extending direction of the wire stop plate 2521, such as... Figure 8A and 8B As shown. Figure 8A and 8B The difference in the illustrated embodiment is that, Figure 8A In the middle, the cross-section of the wire stop plate 2521 along the axis of the winding wheel 252 is a straight line. Figure 8B In this design, the cross-section of the cable guide plate 2521 along the axis of the winding wheel 252 is curved. This design increases the opening distance between the two cable guide plates 2521, making it easier to load the cable 300 onto the winding wheel 252 and further preventing the cable 300 from slipping off the sides of the winding wheel 252, which could cause the cable 300 to get stuck.

[0113] In addition to the above-described configuration, those skilled in the art may, according to actual needs, only provide a wire stop plate 2521 on one side of the winding reel 252, and this application embodiment does not impose any restrictions on this.

[0114] In practice, the wire baffle 2521 and the winding reel 252 can be integrally formed or assembled together by connectors. The wire baffle 2521 and the winding reel 252 can be made of plastic, metal or other materials.

[0115] Please continue reading. Figure 6In this embodiment of the application, five winding posts 2522 are provided on the inner side of the cable guard plate 2521 (the side near the winding wheel 252). These five winding posts 2522 are used to fix and wind the cable 300. Specifically, one end (end) of the cable 300 is fixed and wound around the five winding posts 2522. When the cable winder 250 rotates, the cable 300 can be wound around the winding wheel 252.

[0116] In some application scenarios, such as when the surface cleaning device 100 is cleaning a window (a non-horizontal surface, such as a vertical surface), the surface cleaning device 100 may fall due to pressure loss or other reasons. Understandably, when the surface cleaning device 100 falls, it will cause a significant impact on the fixing position of the cable 300 and the winding post 2522. Similarly, when a user pulls the cable 300 out of the base station 200 and reaches the end of the cable 300, if the user applies excessive force, it will also cause a significant impact on the fixing position of the cable 300 and the winding post 2522.

[0117] If the end of the cable 300 is simply fixedly connected to the winding post 2522, the cable 300 is prone to detaching from the winding post 2522 under impact. To address this issue, this embodiment of the application provides multiple winding posts 2522, fixing the end of the cable 300 to one winding post 2522, and then winding it around the other winding posts 2522.

[0118] See Figure 8C This is a schematic diagram of a cable fixing method provided in an embodiment of this application. Figure 8C Five winding posts are shown, numbered 25221 to 25225. Figure 8C As shown in the diagram, first, the end of cable 300 (point C) is fixed to the right side of winding post 25221. Then, it is wound from the right side of winding post 25221 to the right side of winding post 25222. From the right side of winding post 25222, it is wound clockwise to the left side of winding post 25222. From the left side of winding post 25222, it is wound to the left side of winding post 25221. From the left side of winding post 25221, it is wound clockwise to the right side of winding post 25223. From the right side of winding post 25223, it is wound to the left side of winding post 25224, extending between winding post 25224 and winding post 25225. After that, cable 300 can be further wound onto reel 252.

[0119] It should be pointed out that, Figure 8CThis is merely one possible implementation shown in the embodiments of this application. Those skilled in the art can set other numbers of winding posts 2522 according to actual needs. The relative positional relationships of other winding posts 2522, and other wiring methods (winding and fixing methods of the cable 300) within the winding posts 2522 should all fall within the protection scope of this application. For example, the number of winding posts 2522 can be any number of two or more.

[0120] The following is combined Figures 9A-9E This application will now describe another method for fixing cables according to an embodiment. Wherein, Figure 9A An exploded view of another cable reel assembly provided in an embodiment of this application; Figure 9B for Figure 9A Side view of the cable reel assembly shown; Figure 9C For along Figure 9B Cross-sectional view along the AA direction; Figure 9D for Figure 9A The main view of the cable reel component shown; Figure 9E For along Figure 9D Cross-sectional view in the BB direction.

[0121] like Figures 9A-9E As shown in this embodiment, the winding reel is further provided with a cable threading hole 2523. The cable wound on the winding reel can pass through the cable threading hole 2523 and engage with the cable fixing unit inside the winding reel. Specifically, this engagement can be an interference fit, or it can be fixed by a buckle, fastener, etc., and this embodiment does not specifically limit this. To prevent the cable from being damaged by the cable threading hole 2523 when it passes through the cable, a cable guide sleeve 2524 is also provided at the position of the cable threading hole 2523 to cooperate with the cable threading hole 2523. The cable guide sleeve 2524 can be made of a relatively soft material such as rubber. When the cable passes through the cable threading hole, the cable guide sleeve 2524 is arranged around the side wall of the cable threading hole 2523 and between the cable, preventing the cable threading hole 2523 from directly contacting the cable, thereby protecting the cable.

[0122] In this embodiment, the threading hole 2523 is located on one side of the winding reel, and the cable fixing unit is located inside the winding reel near the threading hole 2523. That is, the threading hole 2523 and the cable fixing unit are located on the same side of the winding reel. This arrangement facilitates the cable passing through the threading hole 2523 and being directly fixed to the cable fixing unit, avoiding excessive cable routing inside the winding reel. Furthermore, placing the cable fixing unit on one side of the winding reel also facilitates the arrangement of various functional units inside the reel, preventing interference between the cable fixing unit and the arrangement of the motor inside the reel. Of course, those skilled in the art can also place the threading hole 2523 and the cable fixing unit in other positions on the winding reel according to actual needs; this embodiment does not limit this.

[0123] See Figure 9A and Figure 9E In this embodiment, the cable fixing unit includes a cable fixing bracket 253, which can be fixed to one side of the cable reel by cable fixing bracket fixing screws 2534. The cable fixing bracket 253 is provided with cable fixing components (outer copper ring / plate 25311 and inner copper ring / plate 25321). After the cable passes through the cable threading hole 2523, it is fixedly connected to the cable fixing components. Figure 9E The dashed line in the diagram is an example illustration of a cable path.

[0124] It is understood that when the cable includes a power cord 301 or a power cord / safety rope integrated cable 302, it is necessary to provide electrical contacts for the cable in order to supply power to the cable while fixing the cable. Based on this, the cable reel provided in this embodiment is also provided with a cooperating 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). Among them, the outer copper ring 2531 is provided with an outer copper ring copper sheet 25311, which extends in a direction perpendicular to the plane of the outer copper ring 2531; the inner copper ring 2532 is provided with an inner copper ring copper sheet 25321, which extends in a direction perpendicular to the plane of the inner copper ring 2532. The outer copper ring 2531 and the inner copper ring 25321 are fastened to one side of the cable fixing bracket 253. The cable fixing bracket 253 is provided with through holes that cooperate with the outer copper ring copper piece 25311 and the inner copper ring copper piece 25321. The outer copper ring copper piece 25311 and the inner copper ring copper piece 25321 extend out through the through holes to the other side of the cable fixing bracket 253.

[0125] In this embodiment, the outer copper ring and copper sheet 25311 and the inner copper ring and copper sheet 25321 form a cable fixing component. After the cable passes through the through hole 2523, it is connected to the outer copper ring and copper sheet 25311 and the inner copper ring and copper sheet 25321 respectively, which can simultaneously play the roles of fixing and conducting electricity.

[0126] In one possible implementation, the cable fixing unit further includes a pressure plate 254, which is used to press the cable between the cable fixing bracket 253 and the pressure plate 254, thereby making the cable more securely fixed inside the winding wheel.

[0127] Additionally, the spring contact assembly 2533 is provided with spring contact contacts 25331. When the spring contact assembly 2533, the outer copper ring 2531, and the inner copper ring 2532 are assembled together, the spring contact contacts 25331 on the spring contact assembly 2533 abut against the outer copper ring 2531 and the inner copper ring 2532 respectively. When the outer copper ring 2531 and the inner copper ring 2532 rotate relative to the spring contact assembly 2533 (the outer copper ring 2531 and the inner copper ring 2532 can rotate together with the winding reel), the spring contact contacts 25331 on the spring contact assembly 2533 slide on the outer copper ring 2531 and the inner copper ring 2532, and always maintain electrical contact. The power storage device 230 inside the base station 200 is electrically connected to the spring contact assembly 2533, thereby forming a power supply path between the power storage device 230, the spring contact assembly 2533, the outer copper ring 2531 / inner copper ring 2532, and the cable.

[0128] Please continue reading. Figures 3-7 The following describes how the cable reel 250 is fixed within the base station 200.

[0129] Specifically, two cable reel mounting brackets 221 are provided on the base plate 220. These two brackets 221 are fixedly connected to the base plate 220, and a space for mounting the cable reel 250 is defined between them. That is, the cable reel 250 is installed between the two cable reel mounting brackets 221. For example, both ends of the motor shaft 2511 in the cable reel 250 can be connected to the cable reel mounting brackets 221 on both sides of the cable reel 250. In practice, the two cable reel mounting brackets 221 can be integrally formed, or they can be two independent fasteners; this embodiment does not limit this.

[0130] Using the above-mentioned cable reel 250 fixing scheme, the distance between the two cable reel fixing brackets 221 in the direction of the motor shaft 2511 matches the length of the motor shaft 2511. However, if the distance between the two cable reel fixing brackets 221 is too large, it will result in the motor shaft 2511 being too long, causing a large radial runout when the motor 251 rotates, which will affect the stability of the cable reel 250.

[0131] To address the aforementioned issues, in one possible implementation, a cable reel connector 240 is provided between the cable reel holder 221 and the motor shaft 2511. Specifically, both ends of the motor shaft 2511 are fixed to the cable reel holders 221 on either side of the motor shaft 2511 via a cable reel connector 240. This arrangement ensures that the distance between the two cable reel holders 221 in the direction of the motor shaft 2511 is greater than the length of the motor shaft 2511. In other words, the length of the motor shaft 2511 can be shortened, reducing radial runout during motor rotation and improving the stability of the cable reel 250.

[0132] Of course, the winding connector 240 can be provided only on one side of the winding reel 250, and the motor shaft 2511 and the winding reel fixing frame 221 can be directly connected on the other side of the winding reel 250. This application embodiment does not limit this.

[0133] exist Figures 3-7 In the illustrated implementation, the cable reel connector 240 has two right-angle bends, and its two ends extend in opposite directions. For ease of explanation, the different positions of the cable reel connector 240 are referred to as the first connector 241, the second connector 242, and the third connector 243. The first connector 241 and the third connector 243 are perpendicular to the second connector 242, and extend in opposite directions. The first connector 241 is perpendicular to the motor shaft 2511 and is fixedly connected to the motor shaft 2511 by a motor fixing screw 244. The third connector 243 is fixedly connected to the cable reel holder 221, which is fixed to the base plate 220, thereby fixing the cable reel 250 to the base plate 220.

[0134] It should be noted that the cable reel connector 240 described in the above embodiments is only one possible implementation in this application embodiment. Those skilled in the art can also set the cable reel connector to other structures according to actual needs. For example, only one bend can be provided on the cable reel connector. Specifically, the cable reel connector has a right-angle bend between the first connector and the second connector. The first connector is fixedly connected to the end of the motor shaft 2511, and the second connector is fixedly connected to the cable reel fixing frame 221. In addition, the bend in the cable reel connector can be bent into other angles besides right angles, such as obtuse angles or acute angles. This application embodiment does not limit this.

[0135] In this embodiment, the cable reel connector 240 is an integrally formed structural component, which can be a single plate. Of course, those skilled in the art can also use tubular or other irregularly shaped connectors, and this embodiment does not impose any limitations on this. However, all connectors must meet the condition that, in the direction of the motor shaft 2511, the distance between the two cable reel holders 221 is greater than the length of the motor shaft 2511.

[0136] In this embodiment, the two cable reel holders 221 are arranged approximately perpendicular to the base plate 220. This "approximately perpendicular to the base plate 220" can be understood as the extension direction of the cable reel holders 221 being basically perpendicular to the base plate 220. However, due to factors such as manufacturing errors, the extension direction of the cable reel holders 221 is not absolutely perpendicular to the base plate 220. Of course, those skilled in the art can also arrange the two cable reel holders 221 at an angle on the base plate 220 as needed; this embodiment does not impose such limitations.

[0137] In practical applications, it may be necessary to design various base stations 200, each with a different size. Using the aforementioned cable reel 250 mounting scheme, for base stations 200 of different sizes, only the corresponding cable reel connector 240 needs to be configured to install the cable reel 250 on the corresponding base station 200, increasing the compatibility of the cable reel 250.

[0138] In addition, the above arrangement can increase the bottom space of the cable reel 250 (increase the space between the two cable reel mounting brackets 221), making it easier to install other functional modules (e.g., batteries) at the bottom of the cable reel 250.

[0139] Understandably, during the cable reel 250's take-up or take-out (release cable 300) process, bending of cable 300 should be avoided as much as possible to prevent affecting the smoothness of take-up or take-out, or causing cable 300 to jam. Typically, bending of cable 300 is more likely to occur at the exit port 211 of base station 200; therefore, the configuration of exit port 211 is particularly important.

[0140] See Figure 10 This is a schematic diagram of a base station structure provided in an embodiment of this application. Figure 10As shown, the cable outlet 211 is located on the top of the housing 210. One end of the cable 300 wound on the reel 250 extends out of the cable outlet 211 and connects to the surface cleaning device 100. Since the surface cleaning device 100 is usually located above the base station 200 (for example, when the surface cleaning device 100 cleans a window, the base station 200 is usually placed on the ground), placing the cable outlet 211 on the top of the housing 210 facilitates cable output and retraction, and avoids excessive bending of the cable 300 at the cable outlet 211.

[0141] Additionally, inside the base station 200, the axis of the cable reel 250 is set horizontally, for example, in the left-right or front-back direction. After the cable 300 is wound on the cable reel 250, it can smoothly transition to the outlet 211. Figure 3 As shown. Conversely, if the axis of the cable reel 250 is set vertically (up and down), and the cable outlet 211 is located at the top of the housing 210, which is equivalent to being located on one side of the cable reel 250, when the cable 300 is pulled through the cable outlet 211, a large lateral pulling force will be generated in the axial direction of the cable reel 250, which is not conducive to the rotation of the cable reel 250 and makes it impossible to evenly wind the cable 300 around the cable reel 250. In one possible implementation, in order to reduce the friction between the cable 300 and the housing at the cable outlet 211 when the cable 300 is extending out or retracting, a rotatable movable part is also provided at the cable outlet 211. The positional relationship between the movable part and the cable outlet 211 is configured such that when the cable 300 extends out of the cable outlet 211, the movable part is located between the cable 300 and the side wall of the cable outlet 211, so as to prevent the cable 300 from directly contacting the side wall of the cable outlet 211. In this embodiment, the movable component is a shaft-shaped movable component, which will be referred to as sliding shaft 262 below for ease of description. Of course, those skilled in the art can also set the movable component to be spherical or ellipsoidal, and this embodiment does not limit this.

[0142] Understandably, when the cable 300 is pulled close to the slide shaft 262, it can drive the slide shaft 262 to rotate, thereby reducing the friction of the cable 300 at the outlet 211, avoiding damage to the cable 300 caused by long-term friction, and improving the service life of the cable 300.

[0143] Since the cable 300 is typically pulled vertically at the outlet 211, the axis (rotation axis) of the slide shaft 262 can be set horizontally to facilitate its rotation. Of course, those skilled in the art can also set the axis of the slide shaft 262 at a certain angle to the horizontal direction according to actual needs. It should be noted that the axis of the slide shaft 262 should be avoided being perpendicular to the horizontal direction as much as possible. If this is adopted, when the cable 300 is pulled close to the slide shaft 262, it will not be conducive to rotating the slide shaft 262, and sliding friction will occur between the cable 300 and the slide shaft 262. In specific implementations, the aforementioned movable part can be directly fixed at the outlet 211, or it can be fixed at the outlet 211 through other connecting parts (e.g., a movable part fixing bracket). Again, taking the slide shaft 261 as an example, the movable part fixing bracket corresponding to the slide shaft 261 is the slide shaft fixing bracket 261, and the slide shaft 261 is movably connected to the slide shaft fixing bracket 261. For ease of explanation, the slide shaft fixing bracket 261, the slide shaft 262, and the pin 263 used to fix the slide shaft 262 are referred to as the cable outlet assembly 260, which will be described below with reference to the accompanying drawings.

[0144] See Figure 11 This is a schematic diagram of the structure of a cable outlet assembly provided in an embodiment of this application. Figure 11 As shown, the cable outlet assembly 260 includes a sliding shaft retainer 261, a pin 263, and a sliding shaft 262. The shape and size of the sliding shaft retainer 261 match the cable outlet 211, and it is used to fix the cable outlet 211 in position. After the pin 263 passes through the through hole of the sliding shaft 262, it is fixed on the sliding shaft retainer 261. The sliding shaft 262 can rotate relative to the pin 263, and one side of the sliding shaft 262 faces the middle position of the cable outlet 211.

[0145] It should be pointed out that, in Figure 11 In the implementation shown, the surface of the slide shaft 262 is flat. However, in some possible implementations, the surface of the slide shaft 262 can be set as an arc surface adapted to the cable 300. With this setting, the cable 300 can be better confined within the arc surface of the slide shaft 262, reducing the swaying of the cable 300 during the winding and unwinding process.

[0146] In this embodiment, four sliding shafts 262 are provided at the outlet 211, located in the front, back, left, and right directions of the outlet 211 (i.e., there are four cooperating sliding shafts 262 and pins 263), which facilitates the pulling of the cable 300 in any direction (the cable 300 will not directly contact the side wall of the outlet 211 when pulled in any direction), so that the cable 300 is not restricted by direction when it exits, making it more convenient to use.

[0147] The above embodiment provides a sliding shaft 262 in each of the four directions (front, rear, left, and right) of the outlet 211. Those skilled in the art can provide at least two sliding shafts 262 on the same side according to actual needs. For example, in... Figure 12A In the embodiment, two sliding shafts 262 are respectively arranged in the front, back, left and right directions of the outlet 211. It is understood that different numbers of sliding shafts 262 can be arranged in different directions. For example, three sliding shafts 262 are arranged in the front and back directions, and two sliding shafts 262 are arranged in the left and right directions. This application embodiment does not limit this.

[0148] In practical applications, the front of the base station 200 typically faces the surface to be cleaned. After the cable 300 is pulled out of the base station 200, it tilts forward, making it less likely that the rear wall of the outlet 211 will come into contact with the cable 300. Therefore, in one possible implementation, the sliding shaft 262 can be provided only in the front, left, and right directions of the outlet 211, such as... Figure 12B As shown. Of course, sliding shafts 262 can also be provided only on the two opposite side walls of the outlet 211. For example, sliding shafts 262 can be provided on the front and rear side walls of the outlet 211; or, sliding shafts 262 can be provided on the left and right side walls of the outlet 211.

[0149] In one possible implementation, the outlet 211 is circular in shape, and correspondingly, the sliding shaft 262 can form a ring at the outlet 211, such as... Figure 12C As shown.

[0150] Of course, those skilled in the art can set the outlet 211 to other shapes and set other numbers of sliding shafts 262 at the outlet 211 position according to actual needs, and this application does not limit this.

[0151] In one possible implementation, the base station 200 is further provided with a force-applying part, which is configured to provide a force point for the user to move the base station 200. For example, in this embodiment, the force-applying part is a handle 212 located on the top of the base station 200. To prevent the cable 300 from rubbing against the handle 212 during cable exit or retraction, the cable exit 211 can be located in front of the handle 212. Typically, the side where the surface cleaning device receiving cavity 213 is located is defined as the front of the base station 200, that is, the cable exit 211 is located between the surface cleaning device receiving cavity 213 and the handle 212. Of course, those skilled in the art can set other forms of force-applying parts according to actual needs, for example, a rigid handle connected to the base station 200 at one end, or a flexible band connected to the base station at both ends; this embodiment does not limit this.

[0152] Since the front of the base station 200 usually faces the surface to be cleaned during operation, the cable 300 is tilted forward after being pulled out of the base station 200. This setting can minimize the contact between the cable 300 and the handle 212, thereby preventing the cable 300 from rubbing against the handle 212.

[0153] It should be noted that, in addition to storing the cable 300, the cable reel 250 provided in this embodiment 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 cable reel 250, which will be described in detail below.

[0154] Please continue reading. Figure 3 To facilitate the fixing of the energy storage device 230, an energy storage device mounting bracket 222 is also provided on the base plate 220. The energy storage device mounting bracket 222 is fixedly connected to the base plate 220, and the energy storage device 230 is fixed to the base plate 220 through the energy storage device mounting bracket 222. In one possible implementation, the energy storage device mounting bracket 222 and the cable reel mounting bracket 221 can be integrally formed. Of course, they can also be two independent fixing parts. This application embodiment does not limit this.

[0155] In addition, the base station 200 is also equipped with a control board 280, which can be a circuit board with a processor, memory and other devices to provide corresponding data processing capabilities for the base station 200 and / or the surface cleaning device 100.

[0156] To facilitate the storage of the external power cord 400, a hook 214 is provided around the outer casing 210 of the base station 200. Each hook 214 is an upward-opening hook. When the external power cord 400 is not in use, it can be wound around the casing 210 and inside the hook 214. It is understood that the hook 214 should be located below the surface cleaning device receiving cavity 213 on the front side of the base station 200 to prevent the power cord 301 of the external power cord 400 from becoming entangled in the surface cleaning device 100 when it is placed inside the cavity 213, thus preventing the surface cleaning device 100 from being unable to be removed from the cavity 213.

[0157] In some possible implementations, to improve the cleaning effect of the surface cleaning device 100, a "wet wiping" function can also be provided. For example, the surface cleaning device 100 can spray cleaning liquid onto the surface to be cleaned by spraying; or, the cleaning unit (e.g., cloth, sponge, etc.) at the bottom of the surface cleaning device 100 can be wetted with cleaning liquid by dripping, and then the surface to be cleaned can be wiped by the wetted cleaning unit to improve the cleaning effect.

[0158] Understandably, to provide the "wet wiping" function, a cleaning fluid container is typically required on the surface cleaning device 100 to hold the cleaning fluid (e.g., water or an aqueous solution with added detergent or disinfectant). It is also understandable that cleaning fluids are generally heavy; placing the cleaning fluid container on the surface cleaning device 100 increases its weight, especially when operating on a non-horizontal surface, placing a significant burden on it. For example, if the surface cleaning device 100 adheres to the surface to be cleaned via negative pressure, a greater suction force is needed to match its weight, leading to excessive power consumption and increased noise. Furthermore, an overly heavy surface cleaning device 100 can also affect its movement speed. Alternatively, a smaller cleaning fluid container on the surface cleaning device 100 would require frequent refills during operation, resulting in a poor user experience.

[0159] To address the aforementioned problems, this application provides a solution for a "wet wiping" function. Specifically, a cleaning fluid container 601 is installed on the base station 200, and the cleaning fluid in the cleaning fluid container 601 is delivered to the surface cleaning device 100 via an infusion hose 303, and then sprayed onto the surface to be cleaned; or the cleaning unit at the bottom of the surface cleaning device 100 is wetted. A detailed description is provided below with reference to the accompanying drawings.

[0160] See Figure 13 This is a schematic diagram of the structure of a surface cleaning system provided in an embodiment of this application. Figure 13 As shown, the base station 200 is equipped with a cleaning fluid container 601 and a first pump module 602. The cleaning fluid container 601 is used to contain cleaning fluid. The first pump module 602 is equipped with an inlet pipe (hereinafter referred to as the first pump module inlet pipe 305), which is connected to the cleaning fluid container 601. The outlet of the first pump module 602 is also connected to the surface cleaning device 100 via a delivery hose 303 (connected to the water inlet on the surface cleaning device 100). It can be understood that when the surface cleaning device 100 moves, the delivery hose 303 can swing accordingly with the movement of the surface cleaning device 100, that is, the delivery hose 303 can adapt to the movement of the surface cleaning device 100.

[0161] Specifically, the surface cleaning device 100 may also be equipped with a nozzle, which is connected to the outlet end of the infusion hose 303, so that the cleaning liquid can be sprayed onto the surface to be cleaned through the nozzle; or, the surface cleaning device 100 may also be equipped with a drip hole, which is connected to the outlet end of the infusion hose 303, so that the cleaning liquid can be dripped onto the cleaning unit (e.g., cloth, sponge, etc.) at the bottom of the surface cleaning device 100 through the drip hole, so as to wet the cleaning unit; or, the surface cleaning device 100 may also be equipped with other cleaning units that require the use of cleaning liquid (e.g., steam generator, etc.), which are not limited in this embodiment.

[0162] The first pump module 602 is used to provide power to transfer the cleaning fluid in the cleaning fluid container 601 to the surface cleaning device 100 through the infusion hose 303, and then spray the cleaning fluid onto the surface to be cleaned through the nozzle on the surface cleaning device 100; or drip the cleaning fluid onto the cleaning unit at the bottom of the surface cleaning device 100 through the drip hole on the surface cleaning device 100.

[0163] Please continue reading. Figure 13 In addition to the infusion tubing 303, the cable 300 between the surface cleaning device 100 and the base station 200 also includes a power cord 301. Of course, besides the power cord 301, the cable 300 between the surface cleaning device 100 and the base station 200 may also include a safety rope 3021, a power cord / safety rope integrated cable 302, a steam hose 304, or a ventilation duct 308. In this embodiment, to facilitate the storage or organization of the cables 300, when there are two or more cables 300 between the surface cleaning device 100 and the base station 200, a covered hose 306 can be used to enclose the two or more cables 300 within the covered hose. For example, in... Figure 13 In this process, the power cord 301 and the infusion tubing 303 are wrapped inside the covering tubing 306, which can be a corrugated plastic tube.

[0164] The present application embodiment has the following advantages in placing the cleaning fluid container 601 on the base station 200:

[0165] 1) It can reduce the weight of the surface cleaning device 100 and reduce the power consumption of the surface cleaning device 100;

[0166] 2) When the surface cleaning device 100 is working, the base station 200 only needs to be placed in a fixed position (e.g., on the ground). Therefore, a large-capacity cleaning fluid container 601 can be configured on the base station 200 to avoid frequent addition of cleaning fluid.

[0167] 3) When the cleaning fluid container 601 is low on cleaning fluid, cleaning fluid can be added directly to the cleaning fluid container 601 without removing the surface cleaning device 100 from the surface to be cleaned. In other words, the operation of the surface cleaning device 100 does not need to be interrupted.

[0168] 4) The surface cleaning device 100 is fixed to the base station 200 by a safety rope. The cleaning liquid container 601 can increase the counterweight of the base station 200. When the surface cleaning device 100 falls, the base station 200 can provide better safety protection for the surface cleaning device 100.

[0169] To facilitate the addition of cleaning fluid to the cleaning fluid container 601, in one possible implementation, the cleaning fluid container 601 is detachably mounted on the base station 200. Specifically, a cleaning fluid container cavity 215 is provided on the outer casing 210 of the base station 200. The size and shape of the cleaning fluid container cavity 215 match that of the cleaning fluid container 601, and the cleaning fluid container 601 is detachably mounted within the cleaning fluid container cavity 215.

[0170] like Figure 13 As shown, the cleaning fluid container cavity 215 includes a top opening and a side opening. The size and shape of the top opening match the cross-section of the cleaning fluid container 601, so that the cleaning fluid container 601 can be inserted into the cleaning fluid container cavity 215 through the top opening, or the cleaning fluid container 601 can be pulled out from the cleaning fluid container cavity 215. The side opening is smaller than the side of the cleaning fluid container 601, so as to limit the cleaning fluid container 601 within the cleaning fluid container cavity 215. Of course, in some possible implementations, only the top opening may be provided, without the side opening, and this embodiment does not limit this. However, when the side opening exists, the cleaning fluid container 601 can be made into a transparent box so that the user can observe the remaining cleaning fluid level. Alternatively, a transparent remaining level observation window can be provided on the cleaning fluid container 601, through which the user can observe the remaining cleaning fluid level.

[0171] In addition, a liquid injection hole 6011 is provided on the top of the cleaning fluid container 601, through which cleaning fluid can be added to the cleaning fluid container 601. Figure 10 As shown, when the cleaning fluid container 601 is installed inside the cleaning fluid container cavity 215, the injection port 6011 remains exposed outside the outer casing 210 of the base station 200. With this configuration, even without removing the cleaning fluid container 601 from the cleaning fluid container cavity 215, cleaning fluid can still be added to the cleaning fluid container 601 through the injection port 6011, providing multiple methods for adding cleaning fluid, making it more flexible and improving the user experience.

[0172] In one possible implementation, the cleaning fluid container cavity 215 and the surface cleaning device cavity 213 are respectively located on both sides of the outer casing 210 of the base station 200. That is, the cleaning fluid container 601 is located on the rear side of the base station 200. During operation, the front of the base station 200 typically faces the surface to be cleaned, resulting in limited space in front of the base station 200. For example, if the front of the base station 200 is a glass curtain wall or wall, the space between the base station 200 and the glass curtain wall or wall is small. If the cleaning fluid container 601 is located on the front of the base station 200, the operating space is limited and inconvenient if the surface cleaning device 100 needs to be disassembled or installed during operation. Conversely, there is usually a larger space at the rear of the base station 200, facilitating the user's disassembly or installation of the cleaning fluid container 601 during operation of the surface cleaning device 100.

[0173] It should be pointed out that, Figure 13 This is merely one possible implementation provided in this application and should not be construed as limiting the scope of protection of this application. For example, in one possible implementation, the pump module can be mounted on the surface cleaning device 100.

[0174] like Figure 14 As shown, the surface cleaning device 100 is equipped with a second pump module 603, which has a second pump module inlet pipe (not shown in the figure). The second pump module inlet pipe is connected to the cleaning fluid container 601 in the base station 200 via a fluid delivery hose 303. The second pump module 603 provides power to transfer the cleaning fluid in the cleaning fluid container 601 to the surface cleaning device 100. The outlet end of the second pump module 603 can also be connected to a nozzle and / or a drip hole, so that the cleaning fluid can be sprayed onto the surface to be cleaned through the nozzle; or the cleaning fluid can be dripped onto the cleaning unit at the bottom of the surface cleaning device 100 through the drip hole. That is to say, the second pump module 603 can also provide power to spray the cleaning fluid onto the surface to be cleaned, or to drip the cleaning fluid onto the cleaning unit at the bottom of the surface cleaning device 100.

[0175] Other details regarding the embodiments of this application can be found in [link to relevant documentation]. Figure 13 The description of the embodiments shown is omitted here for the sake of brevity.

[0176] It is understood that, in order to transfer the cleaning fluid to the surface cleaning device 100, at least one of the first pump module 602 and the second pump module 603 is present.

[0177] In one possible implementation, a first pump module 602 can be simultaneously installed on the base station 200, and a second pump module 603 can be installed on the surface cleaning device 100. The first pump module 602 and the second pump module 603 are connected through an infusion tubing 303. Figure 15As shown. This configuration can increase the pressure in the infusion tubing 303, thereby increasing the delivery capacity of the cleaning solution. In some possible implementations, the first pump module 602 can also provide power to transfer the cleaning solution in the cleaning solution container 601 to the surface cleaning device 100. The second pump module 603 can provide power to spray the cleaning solution onto the surface to be cleaned or drip it onto the cleaning unit at the bottom of the surface cleaning device 100.

[0178] Please continue reading. Figure 13 In this embodiment, the infusion tubing 303 is directly connected between the surface cleaning device 100 and the base station 200. In one possible implementation, to facilitate the storage of the infusion tubing 303, a reel 250 can be provided on the base station 200 to store or release the infusion tubing 303. The working principle of the reel 250 can be found in the description of the above embodiments, and will not be repeated here for the sake of brevity.

[0179] To further improve the cleaning effect, in one possible implementation, the surface cleaning device 100 can be equipped with a "steam cleaning" function. Saturated steam under high temperature and pressure can dissolve and vaporize oil particles on the surface to be cleaned. Simultaneously, the saturated steam can effectively penetrate any tiny pores and cracks, peeling off and removing stains and residues.

[0180] Figure 16 This is a schematic diagram of another surface cleaning system provided in an embodiment of this application. Figure 17 The embodiments provided in this application are related to Figure 16 The diagram shows the structural block diagram corresponding to the surface cleaning system. Figure 16 and combined Figure 17 As shown, the base station 200 is equipped with a cleaning fluid container 601 and a first steam generator 604. The cleaning fluid container 601 is used to contain the cleaning fluid. The first steam generator 604 is equipped with an inlet pipe (hereinafter referred to as the first steam generator inlet pipe 307), which is connected to the cleaning fluid container 601. The outlet of the first steam generator 604 is used to connect to the surface cleaning device 100 (connected to the air inlet on the surface cleaning device 100) through a steam hose 304. The first steam generator 604 is used to atomize the cleaning fluid into high-temperature and high-pressure steam, and transmit it to the surface cleaning device 100 through the steam hose 304. Specifically, the surface cleaning device 100 may also be equipped with a nozzle, spray nozzle, or air outlet, which is connected to the steam hose 304 to spray steam onto the surface to be cleaned, thereby achieving "steam cleaning" of the surface to be cleaned.

[0181] Please continue reading. Figure 16In addition to the steam hose 304, the cable 300 between the surface cleaning device 100 and the base station 200 also includes a power cord 301. Of course, besides the power cord 301, the cable 300 between the surface cleaning device 100 and the base station 200 may also include a safety rope 3021, a power cord / safety rope integrated cable 302, an infusion hose 303, or a ventilation duct 308. In this embodiment, to facilitate the storage or organization of the cables 300, when there are two or more cables 300 between the surface cleaning device 100 and the base station 200, a covered hose 306 can be used to cover the two or more cables 300 inside the covered hose, and then the two or more cables 300 can be wound together on the cable reel 250. For example, in Figure 16 In this process, the power cord 301 and the steam hose 304 are wrapped inside the covered hose 306, which can be a corrugated pipe made of plastic.

[0182] The technical solution provided by the embodiments of this application has the following advantages:

[0183] 1) High-temperature steam can improve the cleaning effect on the surface to be cleaned;

[0184] 2) The cleaning fluid container 601 is installed on the base station 200, which can reduce the counterweight of the surface cleaning device 100 and reduce the power consumption of the surface cleaning device 100.

[0185] 3) When the surface cleaning device 100 is working, the base station 200 only needs to be placed in a fixed position (e.g., on the ground). Therefore, a large-capacity cleaning fluid container 601 can be configured on the base station 200 to avoid frequent addition of cleaning fluid.

[0186] 4) When the cleaning solution tank 601 is low on cleaning solution, cleaning solution can be added directly to the cleaning solution tank 601 without removing the surface cleaning device 100 from the surface to be cleaned. In other words, the operation of the surface cleaning device 100 does not need to be interrupted;

[0187] 5) The surface cleaning device 100 is fixed to the base station 200 by a safety rope. The cleaning liquid container 601 can increase the counterweight of the base station 200. When the surface cleaning device 100 falls, the base station 200 can provide better safety protection for the surface cleaning device 100.

[0188] The specific contents of the cleaning fluid container 601 can be found in the description of the above embodiments, and will not be repeated here for the sake of brevity. The following focuses on the method of steam transmission between the base station 200 and the surface cleaning device 100, as well as the setting method of the steam generator.

[0189] It is understandable that if the steam temperature decreases during the transmission of steam generated in the first steam generator 604 through the steam hose 304, the steam may liquefy, reducing the steam cleaning effect. This phenomenon is particularly pronounced when the steam hose 304 is relatively long.

[0190] To address the aforementioned problems, one solution provided in this application is to configure the steam hose 304 as an insulated hose. Specifically, the steam hose 304 can be made of insulating material to prevent steam from liquefying during transmission.

[0191] To address the aforementioned issues, this application provides another solution. Specifically, a pressure adjustment module (which can be a pump or fan, etc.) is provided to adjust the steam pressure within the steam hose 304. It is understood that when the steam pressure within the steam hose 304 increases, steam can pass through the steam hose 304 quickly, preventing steam liquefaction. Of course, an insulated hose and a pressure adjustment module can also be used simultaneously; this application does not limit this approach.

[0192] In some possible implementations, the steam pressure inside the steam hose 304 can be adjusted according to the degree of dirt on the surface to be cleaned. For example, for heavily soiled surfaces, a higher steam pressure can be generated inside the steam hose 304 through the pressure adjustment module to improve the cleaning effect; for lightly soiled surfaces, a lower steam pressure can be generated inside the steam hose 304 through the pressure adjustment module to save cleaning fluid and power consumption.

[0193] See Figure 18 In one possible implementation, the base station 200 is equipped with a first pressure adjustment module 606, which is connected to the steam hose 304 and can adjust the air pressure inside the steam hose 304. Specifically, the first pressure adjustment module 606 is a first pressurization module, which is used to increase the air pressure inside the steam hose 304.

[0194] See Figure 19 In one possible implementation, the surface cleaning device 100 is equipped with a second pressure adjustment module 607, which is connected to the steam hose 304 and can adjust the air pressure inside the steam hose 304. That is, in this implementation, the pressure adjustment module is installed on the surface cleaning device 100.

[0195] In addition, those skilled in the art can, according to actual needs, respectively, provide a first pressure adjustment module 606 on the base station 200 and a second pressure adjustment module 607 on the surface cleaning device 100, such as... Figure 20As shown. The first pressure adjustment module 606 and the second pressure adjustment module 607 can be connected to the steam hose 304 simultaneously or separately to adjust the air pressure inside the steam hose 304. In a specific implementation, the second pressure adjustment module 607 is a second pressurization module, which is used to increase the air pressure inside the steam hose 304.

[0196] In one possible implementation, to prevent the steam from liquefying during transmission, a steam generator can be installed on the surface cleaning device 100. Specifically, the cleaning fluid is delivered to the surface cleaning device 100 via a delivery hose 303, and then atomized into high-temperature, high-pressure steam by the steam generator on the surface cleaning device 100. The following description is in conjunction with the accompanying drawings.

[0197] See Figure 21 In one possible implementation, the surface cleaning device 100 includes a second steam generator 605. This second steam generator 605 includes a second steam generator inlet pipe (not shown in the figure), which is connected to the outlet of the first pump module 602 in the base station 200 via a delivery hose 303. Since the first pump module inlet pipe 305 is connected to the cleaning fluid container 601, the first pump module 602 can provide power to transfer the cleaning fluid in the cleaning fluid container 601 to the second steam generator 605 in the surface cleaning device 100 via the delivery hose 303.

[0198] See Figure 22 In one possible implementation, the surface cleaning device 100 is equipped with both a second steam generator 605 and a second pump module 603. The second pump module 603 includes a second pump module inlet pipe (not shown in the figure), which is connected to the cleaning fluid container 601 in the base station 200 via a delivery hose 303. The outlet of the second pump module 603 is connected to the inlet pipe of the second steam generator. That is, in this embodiment, the second pump module 603 provides power to transfer the cleaning fluid in the cleaning fluid container 601 to the second steam generator 605 in the surface cleaning device 100 via the delivery hose 303.

[0199] See Figure 23 This implementation method is similar to Figure 22The difference lies in that the base station 200 also includes a first pump module 602. The first pump module 602 includes a first pump module inlet pipe 305, which is connected to the cleaning fluid container 601. The outlet of the first pump module 602 is connected to the inlet pipe of a second pump module via a delivery hose 303. The outlet of the second pump module 603 is connected to the inlet pipe of a second steam generator. In other words, in this embodiment, the first pump module 602 and the second pump module 603 provide power to transfer the cleaning fluid in the cleaning fluid container 601 to the second steam generator 605 in the surface cleaning device 100 via the delivery hose 303. This arrangement increases the pressure in the delivery hose 303, thereby increasing the delivery capacity of the cleaning fluid.

[0200] The specific working principles of the first pump module 602 and the second pump module 603 in this embodiment can be found in [reference needed]. Figure 13 For the sake of brevity, the description of the embodiments will not be repeated here.

[0201] Please continue reading. Figure 16 In this embodiment, the steam hose 304 is directly connected between the surface cleaning device 100 and the base station 200. In one possible implementation, to facilitate the retraction of the steam hose 304, a reel 250 can be provided on the base station 200 to retract or release the steam hose 304. The working principle of the reel 250 can be found in the description of the above embodiments, and will not be repeated here for the sake of brevity.

[0202] In some possible implementations, the surface cleaning device 100 is equipped with an adsorption unit and a vacuum unit. For example, the adsorption unit can be a cavity located at the bottom of the surface cleaning device 100, which defines a sealed space with the surface to be cleaned. The vacuum unit can be a fan module or a vacuum pump module, which is connected to the adsorption unit and is used to evacuate the adsorption unit, thereby creating a negative pressure inside the adsorption unit and adsorbing the surface cleaning device onto the surface to be cleaned.

[0203] However, vacuum pump modules or fan modules are relatively heavy. Placing them on the surface cleaning device 100 increases the device's weight, placing a significant burden on it. For example, to match the weight of the surface cleaning device 100, a greater suction force is required, which can lead to excessive power consumption and increased noise.

[0204] To address the aforementioned issues, this application provides a separate design scheme for the adsorption unit and the vacuum unit.

[0205] See Figure 24This is a structural block diagram of another surface cleaning system provided in an embodiment of this application. Figure 24 As shown, the surface cleaning device 100 is equipped with an adsorption unit 110 and a walking unit 120. The adsorption unit 110 defines a sealed space with the surface to be cleaned; the walking unit drives the surface cleaning device 100 to move across the surface to be cleaned. The base station 200 is equipped with an air duct 710, within which a vacuum unit 720 is installed. The vacuum unit 720 generates negative pressure within the air duct 710. The surface cleaning device 100 is connected to the base station 200 via a ventilation pipe 308. Specifically, the ventilation pipe 308 connects the adsorption unit 110 and the air duct 710 on the surface cleaning device 100. When the vacuum unit 720 operates, it generates negative pressure within the air duct 710. Since the air duct 710 and the adsorption unit 110 are connected via the ventilation pipe 308, negative pressure can be generated within the adsorption unit 110, thereby adsorbing the surface cleaning device 100 onto the surface to be cleaned.

[0206] The solution provided by the embodiments of this application has the following advantages:

[0207] 1) It can reduce the weight of the surface cleaning device 100. In this state, the surface cleaning device 100 only requires a small suction force to adhere to the surface to be cleaned, reducing the power consumption and noise of the surface cleaning device 100;

[0208] 2) The surface cleaning device 100 is fixed to the base station 200 by a safety rope. The vacuum unit 720 can increase the counterweight of the base station 200. When the surface cleaning device 100 falls, the base station 200 can provide better safety protection for the surface cleaning device 100.

[0209] The following description, in conjunction with the accompanying drawings, illustrates the specific implementation of a separate design for the adsorption unit 110 and the vacuum unit 720 provided in this application embodiment.

[0210] Figure 25 This is a schematic diagram of another surface cleaning system provided in an embodiment of this application; Figure 26 The embodiments provided in this application are related to Figure 25 The cross-sectional view corresponding to the surface cleaning system shown. (See diagram below.) Figure 25 and combined Figure 26As shown, an air duct 710 is provided inside the outer casing 210 of the base station 200. This air duct 710 is an airflow channel formed inside the outer casing 210, and its shape is not specifically limited in this embodiment. Specifically, the air duct 710 includes an air inlet 711 (shown by the dotted line in the figure) and an air outlet 712. A fan module 721 (i.e., a vacuum unit 720) is provided inside the air duct 710. When the fan module 721 is working, it can generate negative pressure within the air duct 710, causing the airflow within the air duct 710 to flow from the air inlet 711 to the air outlet 712. In this embodiment, the air outlet 712 is disposed on the outer casing 210 of the base station 200 (multiple through holes on the outer casing 210).

[0211] Additionally, a ventilation duct 308 is provided at the air inlet 711 of the air duct. The other end of the ventilation duct 308 is connected to the air outlet 111 of the adsorption unit on the surface cleaning device 100 (shown by the dotted line in the figure). The air outlet 111 of the adsorption unit is connected to the adsorption unit 110 on the surface cleaning device 100. For example, the adsorption unit 110 is a cavity located at the bottom of the surface cleaning device 100, and the air outlet 111 of the adsorption unit is connected to this cavity.

[0212] It is understandable that when the fan module 721 is working, the airflow direction is adsorption unit 110, adsorption unit outlet 111, ventilation pipe 308, air duct inlet 711, air duct 710, and air duct outlet 712. Therefore, when the surface cleaning device 100 is placed on the surface to be cleaned, a negative pressure will be generated in the adsorption unit 110, thereby adsorbing the surface cleaning device 100 onto the surface to be cleaned.

[0213] In this embodiment, to facilitate the storage and organization of the ventilation duct 308, a cable reel 250 is also provided inside the base station 200. When the cable reel 250 rotates, the ventilation duct 308 can be wound around the cable reel 250 or released from the cable reel 250. The specific working principle of the cable reel 250 can be found in the description of the above embodiments, and will not be repeated here for the sake of brevity.

[0214] In addition, to facilitate the connection between the ventilation duct 308 and the air inlet 711, the air inlet 711 can be located on the cable reel 250, meaning the air duct 710 passes through the cable reel 250 and connects to the ventilation duct 308. For example, it can be located on the cable reel 252 of the cable reel 250. While connecting the ventilation duct 308 to the air inlet 711, the end of the ventilation duct 308 can also be fixed to the cable reel 252, resulting in a simple structure. Of course, those skilled in the art can also locate the air inlet 711 in other positions, connect the ventilation duct 308 to the air inlet 711, and then fix the ventilation duct 308 to the cable reel 250; this embodiment does not limit this.

[0215] Please continue reading. Figure 26 In this embodiment, the motor 251 of the reel 250 is located inside the air duct 710. When the fan module 721 operates, airflow is generated inside the air duct 710, and the flowing airflow has a cooling effect on the motor 251. That is to say, in this embodiment, while providing negative pressure to the adsorption unit 110, the temperature of the motor 251 can also be reduced, preventing the motor 251 from overheating and improving its lifespan. Of course, those skilled in the art can also place the motor 251 outside the air duct 710, and this embodiment does not limit this.

[0216] In addition, when the cable 300 connecting the base station 200 and the surface cleaning device 100 includes, besides the ventilation duct 308, a power cord 301, a safety rope 3021, a power cord / safety rope integrated cable 302, a steam hose 304, or an infusion hose 303, it may also include a power cord 301, a safety rope 3021, a power cord / safety rope integrated cable 302, a steam hose 304, or an infusion hose 303. In this embodiment, to facilitate the storage or organization of the cables 300, when there are two or more cables 300 between the surface cleaning device 100 and the base station 200, a covered hose 306 can be used to enclose the two or more cables 300 within the covered hose, allowing them to be wound together on the cable reel 250. That is, the cable reel 250 can simultaneously store and release multiple cables 300.

[0217] In one possible implementation, the cable reel 250 may not be installed inside the base station 200, and the ventilation duct 308 may be directly connected to the air inlet 711 of the air duct inside the base station 200.

[0218] Understandably, base station 200 is equipped with multiple functional units, such as cable reel 250, energy storage device 230, and cleaning fluid container 601. The arrangement of each functional unit in base station 200 will affect the performance of base station 200. Two different arrangement schemes are provided below.

[0219] Layout Option 1:

[0220] Please continue reading. Figure 4 In this embodiment, the energy storage device 230 is located below the cable reel 250. Since the energy storage device 230 is relatively heavy, placing it at the bottom of the base station 200 lowers its center of gravity and improves its stability. For example, when the surface cleaning device 100 falls, the impact on the base station 200 is significant. A lower center of gravity prevents the base station 200 from tipping over or tilting under the impact of the falling surface cleaning device 100, providing better safety protection.

[0221] In addition, in this embodiment, since the outlet 211 is located at the top of the base station 200, the cable reel 250 is located above the power storage device 230. The cable reel 250 is closer to the outlet 211, which facilitates cable routing and avoids excessively long cable 300 inside the base station 200.

[0222] In a specific implementation, the energy storage device 230 is located at the bottom of the cable reel 250, and the projections of the energy storage device 230 and the cable reel 250 in the vertical direction at least partially overlap.

[0223] Preferably, the projection of the energy storage device 230 in the vertical direction covers the projection of the cable reel 250 in the vertical direction; or, the projection of the cable reel 250 in the vertical direction covers the projection of the energy storage device 230 in the vertical direction. This arrangement allows for a more compact layout of the functional units within the base station 200, reducing the size of the base station 200.

[0224] In some possible implementations, when the base station 200 is equipped with a cleaning fluid container 601, the cleaning fluid container 601 is positioned on the side of the energy storage device 230 and / or the cable reel 250. After adding cleaning fluid, the cleaning fluid container 601 becomes relatively heavy; positioning it close to the base plate 220 lowers the center of gravity of the base station 200. Furthermore, since users need to add cleaning fluid to the cleaning fluid container 601 during operation, positioning it on the side of the energy storage device 230 and / or the cable reel 250 facilitates user operation (directly adding cleaning fluid to the container; or removing the container from the base station 200). The specific configuration of the cleaning fluid container 601 can be found in the description of the above embodiments, and will not be repeated here for brevity.

[0225] In some possible implementations, when the base station 200 is provided with a surface cleaning device receiving cavity 213, the surface cleaning device receiving cavity 213 is located on the side of the energy storage device 230 and / or the cable reel 250, so that the user can take out or place the surface cleaning device 100 in the surface cleaning device receiving cavity 213.

[0226] In some possible implementations, when the base station 200 is equipped with both a cleaning fluid container 601 and a surface cleaning device container 213, the cleaning fluid container 601 can be located at the rear of the base station 200, and the surface cleaning device container 213 can be located at the front of the base station 200. Specifically, taking the energy storage device 230 as a reference, the cleaning fluid container 601 is located at the rear of the energy storage device 230, and the surface cleaning device container 213 is located at the front of the energy storage device 230; taking the cable reel 250 as a reference, the cleaning fluid container 601 is located at the rear of the cable reel 250, and the surface cleaning device container 213 is located at the front of the cable reel 250.

[0227] Using the technical solution provided in this application embodiment, during use, the user can place the surface cleaning device accommodating cavity 213 with its front side facing the surface to be cleaned, so that after removing the surface cleaning device 100 from the accommodating cavity 213, it can be directly placed on the surface to be cleaned without having to bypass the base station 200. Simultaneously, since there is usually a large space behind the base station 200, placing the cleaning fluid container 601 at the rear of the base station 200 facilitates the user's disassembly or installation of the cleaning fluid container 601 during the operation of the surface cleaning device 100.

[0228] Of course, in some possible implementations, the user may also place the surface cleaning device receiving cavity 213 on the left or right side of the base station; or, the cleaning liquid receiving tank 601 may be placed on the left or right side of the base station. This application embodiment does not impose specific limitations on this.

[0229] Layout Option 2:

[0230] Figure 27 This is a schematic diagram of the structure of a base station provided in an embodiment of this application; Figure 28 The embodiments provided in this application are related to Figure 27 The cross-sectional view corresponding to the base station is shown. (See diagram below.) Figure 27 and combined Figure 28 As shown in this embodiment, both the energy storage device 230 and the cable reel 250 are positioned close to the base plate 220, with the energy storage device 230 located on one side of the cable reel 250. It is understood that positioning both the energy storage device 230 and the cable reel 250 close to the base plate 220 further lowers the center of gravity of the base station 200, improving its stability. For example, when the surface cleaning device 100 falls, the impact on the base station 200 is significant. A lower center of gravity prevents the base station 200 from tipping over or tilting under the impact of the falling surface cleaning device 100, providing better safety protection for the surface cleaning device 100.

[0231] In a specific implementation, the energy storage device 230 is located on one side of the cable reel 250, and the projections of the energy storage device 230 and the cable reel 250 in the front-back direction at least partially overlap.

[0232] Preferably, the projection of the energy storage device 230 in the front-to-back direction covers the projection of the cable reel 250 in the vertical direction; or, the projection of the cable reel 250 in the front-to-back direction covers the projection of the energy storage device 230 in the vertical direction. This arrangement allows for a more compact layout of the functional units within the base station 200, reducing the size of the base station 200.

[0233] In one possible implementation, the cable reel 250 is located in front of the energy storage device 230. Since the outlet 211 is located at the top of the base station 200 and close to the front, when the cable reel 250 and the energy storage device 230 are arranged side by side, placing the cable reel 250 in front of the energy storage device 230 makes the cable reel 250 closer to the outlet 211, facilitating cable exit and avoiding excessively long cable 300 runs inside the base station 200.

[0234] In one possible implementation, when the base station 200 is equipped with a cleaning fluid container 601, the cleaning fluid container 601 is positioned on the side of the energy storage device 230 and / or the cable reel 250. Specifically, the projection of the cleaning fluid container 601 onto the energy storage device 230 in the front-rear direction at least partially overlaps; or, the projection of the cleaning fluid container 601 onto the cable reel 250 in the front-rear direction at least partially overlaps. After adding cleaning fluid to the cleaning fluid container 601, the cleaning fluid container 601 becomes relatively heavy. Positioning the cleaning fluid container 601 close to the base plate 220 can lower the center of gravity of the base station 200. Since users need to add cleaning fluid to the cleaning fluid container 601 during operation, it is more convenient for users to operate by placing the cleaning fluid container 601 on the side of the energy storage device 230 and / or the cable reel 250 (adding cleaning fluid directly to the cleaning fluid container 601; or removing the cleaning fluid container 601 from the base station 200).

[0235] In some possible implementations, the cleaning fluid container can be located behind the energy storage device 230 and / or the cable reel 250. Specifically, the cable reel 250, the energy storage device 230, and the cleaning fluid container 601 can be arranged sequentially from front to back.

[0236] In some possible implementations, when the base station 200 is provided with a surface cleaning device receiving cavity 213, the surface cleaning device receiving cavity 213 is located on the side of the energy storage device 230 and / or the cable reel 250, so that the user can take out or put in the surface cleaning device 100 within the surface cleaning device receiving cavity 213. Specifically, the surface cleaning device receiving cavity 213 can be located on the front side of the energy storage device 230 and / or the cable reel 250.

[0237] In some possible implementations, when the base station 200 is equipped with both a cleaning fluid container 601 and a surface cleaning device container 213, the cleaning fluid container 601 can be located at the rear of the base station 200, and the surface cleaning device container 213 can be located at the front of the base station 200. Specifically, the surface cleaning device container 213, the cable reel 250, the energy storage device 230, and the cleaning fluid container 601 can be arranged sequentially from front to back.

[0238] Using the technical solution provided in this application embodiment, during use, the user can place the surface cleaning device accommodating cavity 213 with its front side facing the surface to be cleaned, so that after removing the surface cleaning device 100 from the accommodating cavity 213, it can be directly placed on the surface to be cleaned without having to bypass the base station 200. Simultaneously, since there is usually a large space behind the base station 200, placing the cleaning fluid container 601 at the rear of the base station 200 facilitates the user's disassembly or installation of the cleaning fluid container 601 during the operation of the surface cleaning device 100.

[0239] Of course, in some possible implementations, the user may also place the surface cleaning device receiving cavity 213 on the left or right side of the base station; or, the cleaning liquid receiving tank 601 may be placed on the left or right side of the base station. This application embodiment does not impose specific limitations on this.

[0240] It should be noted that the embodiments of this application do not limit the product form of the surface cleaning device. For ease of understanding, the working principle of the surface cleaning device will be briefly introduced below in conjunction with two different product forms.

[0241] Surface cleaning device one:

[0242] See Figure 29 This is a schematic diagram of the structure of a surface cleaning device provided in an embodiment of this application. Figure 29 As shown, the surface cleaning device includes a main body, and an adsorption unit 110 is provided at the bottom of the main body. The adsorption unit 110 can adsorb the surface cleaning device onto the surface to be cleaned. Specifically, the adsorption unit 110 can be a cavity provided at the bottom of the main body. The cavity is used to define a sealed space with the surface to be cleaned (e.g., glass). When a negative pressure is generated in the sealed space, the surface cleaning device is adsorbed onto the surface to be cleaned.

[0243] The bottom of the main body is also provided with a walking unit 120, which is used to drive the surface cleaning device to move on the surface to be cleaned. Specifically, the walking unit 120 can be a wheeled walking unit or a tracked walking unit, etc. It is understood that the main body should also be provided with a drive unit that cooperates with the walking unit 120, so as to drive the walking unit 120 to work and drive the surface cleaning device to move on the surface to be cleaned.

[0244] It should be pointed out that, Figure 29 This is merely an exemplary illustration of a surface cleaning device in the embodiments of this application and should not be construed as a limitation on the scope of protection of this application.

[0245] For example, in one possible implementation, a cleaning unit is also provided at the bottom of the main body. When the surface cleaning device moves over the surface to be cleaned, the surface can be cleaned through this cleaning unit. Specifically, the cleaning unit can be a roller brush or a wiping unit, and the wiping unit can be a sponge, cloth, or paper.

[0246] In one possible implementation, the main body is further provided with a vacuum unit. This vacuum unit is used to generate a negative pressure in the adsorption unit 110. Specifically, the vacuum unit can be a pump or a fan, etc.

[0247] Surface cleaning device two:

[0248] See Figure 30 This is a schematic diagram of another surface cleaning device provided in an embodiment of this application. Figure 30 As shown, the self-moving cleaning device includes a first cleaning unit 130, which defines a first space between itself and the surface to be cleaned. When a negative pressure is generated in the first space, the first cleaning unit 130 can be adsorbed onto the surface to be cleaned. A second cleaning unit 140 defines a second space between itself and the surface to be cleaned. When a negative pressure is generated in the second space, the second cleaning unit 140 can be adsorbed onto the surface to be cleaned. A connecting arm 150 has a first end connected to the first cleaning unit 130 via a first pivot 151, and a second end connected to the second cleaning unit 140 via a second pivot 152. A driving unit is used to drive the first cleaning unit 130 to rotate relative to the second cleaning unit 140, and to drive the second cleaning unit 140 to rotate relative to the first cleaning unit 130, thereby driving the self-moving cleaning device to move on the surface to be cleaned. It can be understood that in this embodiment, the first cleaning unit 130 and the second cleaning unit 140 simultaneously function as the moving units of the surface cleaning device.

[0249] See Figure 31 Provided for the embodiments of this application Figure 30 A schematic diagram of the movement of the surface cleaning device shown. Figure 31 As shown, in the initial position, the first cleaning unit 130 is located at position P1, and the second cleaning unit 140 is located at position P2. The second cleaning unit 140 is kept stationary, while the first cleaning unit 130 rotates relative to the second cleaning unit 140 along direction T1, reaching position P3. The first cleaning unit 130 is then kept stationary, while the second cleaning unit 140 rotates relative to the first cleaning unit 130 along direction T2, reaching position P4. This process continues, with the first cleaning unit 130 and the second cleaning unit 140 moving alternately, enabling the surface cleaning device to move across the surface to be cleaned.

[0250] It should be pointed out that, Figure 30 This is merely an exemplary illustration of a surface cleaning device in the embodiments of this application and should not be construed as a limitation on the scope of protection of this application.

[0251] For example, in one possible implementation, the surface cleaning device further includes a vacuum unit for connecting the first space and the second space, thereby creating a negative pressure in the first space and the second space, so that the first cleaning unit 130 and the second cleaning unit 140 are adsorbed onto the surface to be cleaned.

[0252] In one possible implementation, the vacuum unit includes a first vacuum device and a second vacuum device. The first vacuum device connects to a first space, creating a negative pressure there, and the second vacuum device connects to a second space, creating a negative pressure there as well. In other words, two independent vacuum devices are provided, and these two independent vacuum devices control the negative pressure states of the first and second spaces respectively.

[0253] In one possible implementation, the vacuum unit includes a first air valve, a second air valve, and a third vacuum device. Specifically, the first air valve connects to a first space, and the second air valve connects to a second space. When the first air valve is open, the third vacuum device connects to the first space, creating a negative pressure in the first space; when the second air valve is open, the third vacuum device connects to the second space, creating a negative pressure in the second space. In other words, in this implementation, a single vacuum device controls the negative pressure state of both the first and second spaces.

[0254] The vacuum device involved in the embodiments of this application can be a vacuum pump or a blower, etc., and the embodiments of this application do not impose specific limitations on it.

[0255] In one possible implementation, the drive unit includes a first drive device and a second drive device. The first drive device drives the first cleaning unit 130 to rotate relative to the linkage arm 150; the second drive device drives the second cleaning unit 140 to rotate relative to the linkage arm 150. That is, two independent drive devices are provided to independently drive the rotation of the first cleaning unit 130 and the second cleaning unit 140.

[0256] In one possible implementation, the drive unit includes a first transmission device, a second transmission device, and a third drive device. Specifically, the first transmission device is connected to the first cleaning unit 130 and is used to drive the first transmission device to rotate the first cleaning unit 130 relative to the linkage arm 150 via the third drive device; and the second transmission device is connected to the second cleaning unit 140 and is used to drive the second transmission device to rotate the second cleaning unit 140 relative to the linkage arm 150 via the third drive device. That is, in this implementation, the rotation of the first cleaning unit 130 and the second cleaning unit 140 can be driven by a single drive device.

[0257] The driving device involved in the embodiments of this application can be a motor or other power device, and the embodiments of this application do not impose specific limitations on it.

[0258] In one possible implementation, the first cleaning unit 130 and the second cleaning unit 140 can be a sponge, cloth or paper, etc. When the first cleaning unit 130 and the second cleaning unit 140 move relative to the surface to be cleaned, they can wipe the surface to be cleaned in order to remove dust, stains and other contaminants from the surface to be cleaned.

[0259] In one possible implementation, Figure 29 and Figure 30 The surface cleaning device shown may be a double-sided cleaning device, which includes a main unit and a slave unit, which are magnetically attached to both sides of the surface to be cleaned. It is understood that when the surface cleaning device is a double-sided device, an adsorption unit or a space for generating negative pressure may not be provided at the bottom of the device.

[0260] It should be pointed out that, Figure 29 and Figure 30 This is merely an illustrative description of a surface cleaning device in this application embodiment. Other product forms of surface cleaning devices may also exist, and this application embodiment does not impose specific limitations on them.

[0261] See Figures 32A-32CThis is a schematic diagram illustrating an application scenario provided by an embodiment of this application. In this application scenario, the surface to be cleaned is a window. When the surface cleaning device 100 performs cleaning work on the window, it is connected to the base station 200 via a safety rope 3021. Specifically, the safety rope 3021 is connected to a cable reel in the base station 200. The specific connection method between the safety rope 3021 and the cable reel can be found in the description of the above embodiment, and will not be repeated here.

[0262] During the cleaning operation of the surface cleaning device 100, the reel can be set to a "locked" state. In this state, the safety rope 3021 cannot be pulled out of the base station 200, effectively fixing it directly to the base station 200. If the surface cleaning device 100 falls onto a window due to pressure loss in the adsorption unit or other reasons (e.g.) Figure 32B (as shown in the diagram), the surface cleaning device 100 can be pulled by the safety rope 3021 (e.g., Figure 32C (as shown in the diagram) to prevent safety accidents caused by the surface cleaning device 100 falling.

[0263] However, if the surface cleaning device 100 falls while the reel remains "jammed," the moment the safety rope 3021 in the base station 200 becomes taut, a significant impact force (the force exerted by the safety rope 3021 on the base station 200) will be generated on the base station 200. This impact force may cause the base station 200 to tilt or overturn. Alternatively, under the action of this impact force, the connection of the safety rope 3021 may break or the safety rope 3021 itself may break, causing a safety accident.

[0264] To address the aforementioned issues, this application provides a drop control method for a surface cleaning device 100. When the surface cleaning device 100 falls, the reel is released from a "locked" state, and a buffering force is applied to the reel by a motor in the reel to buffer the impact force on the base station 200, thereby achieving a smooth landing of the surface cleaning device 100.

[0265] See Figure 33 This is a schematic flowchart of a drop control method for a surface cleaning device provided in an embodiment of this application. This method can be applied to the base station 200 described in the above embodiment, such as... Figure 33 As shown, it mainly includes the following steps.

[0266] Step S3301: Determine whether a drop event exists, where the surface cleaning device falls onto the surface to be cleaned.

[0267] In one possible implementation, when the surface cleaning device 100 is dropped (e.g.) Figure 32BIn the state shown, the surface cleaning device 100 can detect a drop signal and then send the drop signal to the base station 200. When the base station 200 receives the drop signal sent by the surface cleaning device 100, it determines that a drop event has occurred. Specifically, whether the surface cleaning device 100 has fallen can be detected by an acceleration sensor or a pressure sensor installed on the surface cleaning device 100 (when the surface cleaning device 100 falls, the adsorption unit of the surface cleaning device 100 will experience a pressure loss phenomenon).

[0268] The surface cleaning device 100 and the base station 200 can communicate via wired or wireless means, so that the surface cleaning device 100 can send a drop signal to the base station 200. Of course, in addition to the drop signal in this scenario, the surface cleaning device 100 and the base station 200 can also exchange other information, which will not be described in detail in this embodiment.

[0269] When the surface cleaning device 100 and the base station 200 are connected by a wired means, the cable shown in the above embodiment also includes a signal line, through which the surface cleaning device 100 and the base station 200 communicate.

[0270] When the surface cleaning device 100 and the base station 200 are wirelessly connected, the communication network connecting the surface cleaning device 100 and the base station 200 can be a local area network (LAN) or a wide area network (WAN) relayed through a relay device. When the communication network is a LAN, for example, it can be a Wi-Fi hotspot network, a Wi-Fi P2P network, a Bluetooth network, a Zigbee network, or a near field communication (NFC) network, etc. When the communication network is a WAN, for example, it can be a 3G network, a 4G network, a 5G network, a future public land mobile network (PLMN), or the Internet, etc.

[0271] 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 device 100, the torque of the reel is set to zero or a small value by the motor. In this state, pulling the safety rope 3021 can drive the reel to rotate. It is understood that when the surface cleaning device 100 falls, the reel can rotate rapidly; therefore, the presence of a fall event can be determined by the rotational speed of the reel. Specifically, a reel rotational speed threshold can be set. When the detected reel rotational speed exceeds the preset threshold, a fall event is determined. In a specific implementation, the rotational speed of the reel can be detected by installing a Hall element or an encoder on the reel.

[0272] Furthermore, since the rotation of the reel also drives the motor, the presence of a fall event can be determined by monitoring the motor's speed. Specifically, a motor speed threshold can be set; if the detected motor speed exceeds the preset threshold, a fall event is determined to have occurred. In practice, this can be achieved by installing a Hall effect sensor or encoder on the motor to detect its speed.

[0273] In some possible implementations, the existence of a drop event can also be determined based on the cable release length. Specifically, a cable release length threshold can be set, and the cable reel can determine the cable release length in real time based on the number of rotations of the motor or the reel. If the cable release length on the reel is not less than the preset cable release length threshold, a drop event is determined to have occurred.

[0274] It is understandable that, in the above-described methods for detecting drop events, the accelerometer of the surface cleaning device 100 has a faster response speed, detecting the drop event as soon as the surface cleaning device 100 begins to fall. For example, in Figure 32B The state shown indicates that a fall event can be detected. Other detection methods only detect a fall event when the safety rope 3021 is taut. As shown in the figure, in... Figure 32C Only the indicated state can detect a fall event.

[0275] Of course, those skilled in the art can use other methods to detect drop events, and this application does not limit such methods.

[0276] Step S3302: Based on the existence of a drop event, control the motor to generate a first torque on the winding reel. The first torque is used to buffer the second torque generated by the surface cleaning device on the winding reel.

[0277] For ease of explanation, the torque generated by the motor on the winding reel is referred to as the "first torque," and the torque generated on the winding reel due to the surface cleaning device 100 falling is referred to as the "second torque." It should be noted that the "first torque" and "second torque" are not fixed values; they can be continuously or discontinuously varying values, as will be explained in detail below. In this application embodiment, when comparing the magnitudes of the "first torque" and "second torque," it refers to the magnitudes of the "first torque" and "second torque" at the same moment.

[0278] In this embodiment, when a fall event occurs, the control reel switches from a "locked" state to a "released" state, or the control reel remains in a "released" state. The "locked" state means the reel will not rotate under external force; for example, when the safety rope 3021 is pulled, the reel will not rotate, meaning the safety rope 3021 will not be pulled out. The "released" state means the reel will rotate under external force; for example, when the safety rope 3021 is pulled, the reel will rotate, meaning the safety rope 3021 will be pulled out. Alternatively, the "released" state means the reel rotates under the drive of a motor; for example, the motor drives the reel to rotate based on the presence of a fall event, causing the safety rope 3021 to release.

[0279] When a drop event occurs, the drop control strategy controls the torque of the motor to apply a first torque to the winding reel, thus buffering the second torque on the reel and achieving a smooth landing of the surface cleaning device 100. Specifically, according to the formula Ft = mv, given a constant mass and speed of the object, the force is inversely proportional to the duration of action, where F is the force, t is the duration of action, m is the mass of the object, and v is the speed of the object. This embodiment can increase the drop time of the surface cleaning device 100 (relative to the "jammed" state of the winding reel), meaning it can increase the duration of impact on the winding reel, thereby reducing the impact force generated by the drop event on the winding reel and allowing the surface cleaning device 100 to land more smoothly.

[0280] To achieve a smoother landing of the surface cleaning device 100, the first torque can be controlled according to different drop control strategies, which will be explained below.

[0281] First fall control strategy:

[0282] Based on the fall time in the fall event, the motor is controlled to generate a first torque on the winding reel according to the first fall control strategy.

[0283] Specifically, at the first moment, the first torque and the second torque are in opposite directions, and the first torque is less than the second torque. The first moment is the moment when the first torque begins to be generated on the winding reel. It can be understood that, in order to buffer 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 begins to be generated on the winding reel, the first torque should be less than the second torque. Conversely, if at the first moment, the first torque is greater than or equal to the second torque, then under the action of the first torque, the drop of the surface cleaning device cannot drive the winding reel to rotate; the winding reel is essentially in a "jammed" state and cannot buffer the second torque.

[0284] From a force analysis perspective, since the reel is in the "released" state, the force exerted by 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. In other words, the magnitude of the impact force of the safety rope 3021 on the base station 200 is equivalent to the first torque. Therefore, the impact force of the safety rope 3021 on the base station 200 can be controlled by the magnitude of the first torque.

[0285] In one possible implementation, from a first moment to a second moment, the first torque gradually increases until it exceeds the second torque, where the second moment is the moment the surface cleaning device stops falling. That is, between the first and second moments, the surface cleaning device falls smoothly by applying the first torque to the reel. Specifically, ignoring factors such as friction and air resistance, when the first torque is less than the second torque, the falling speed of the surface cleaning device 100 gradually increases; when the first torque equals the second torque, the falling speed of the surface cleaning device 100 remains constant; and when the first torque is greater than the second torque, the falling speed of the surface cleaning device 100 gradually decreases.

[0286] For example, in Figure 34 In the diagram (where the horizontal axis t represents time and the vertical axis T represents torque), the first torque gradually increases from the first moment t1. Between the time interval t1 and t', the first torque is less than the second torque, causing the surface cleaning device 100 to accelerate its descent. Between the time interval t' and t2, the first torque is greater than the second torque, causing the surface cleaning device 100 to gradually decelerate until it stops, achieving a smooth landing. Here, t' represents the moment when the first torque equals the second torque.

[0287] In another possible implementation, from a first time t1 to a second time t2, the first torque can be gradually increased to a level greater than the second torque and then gradually decreased, wherein, during the process of the first torque gradually decreasing, the first torque is not less than the second torque. For example, in Figure 34At a certain moment between time interval t' and t2, the first torque is gradually reduced, but it should be ensured that the first torque is always greater than or equal to the second torque. In this implementation, a smaller torque can be used to decelerate the surface cleaning device 100, minimizing the force exerted by the safety rope 3021 on the base station 200. During the process of controlling the gradual reduction of the first torque, it can be controlled to decrease linearly and uniformly, or it can be controlled to decrease gradually according to a non-linear curve; this embodiment does not impose specific limitations on this.

[0288] In addition, to further reduce the impact force generated on the base station 200 at the moment the safety rope 3021 is tightened, this embodiment of the application sets a buffer time interval, such as... Figure 34 The time interval is t0-t1. Here, t0 is the instant the safety rope 3021 becomes taut, which is the moment the second torque is generated on the reel. In other words, at the moment t0 when the second torque is generated on the reel, the first torque applied to the reel is 0, meaning no first torque is generated.

[0289] Of course, those skilled in the art may also omit the buffer time interval, that is, generate a first torque on the winding reel that is greater than 0 and less than the second torque starting from time t0. This application does not impose specific limitations on this. It should be noted that... Figure 34 This is merely an illustrative example, and the embodiments of this application do not impose specific limitations on the change curve of the first torque.

[0290] Second fall control strategy:

[0291] Based on the cable release length during the drop event, the motor is controlled to generate a first torque on the reel according to the second drop control strategy.

[0292] Specifically, the cable reel can determine the cable release length in real time based on the number of rotations of the motor or the reel. A first cable release length is set, which is the length at which the first torque begins to be generated on the reel. At the first cable release length, the first torque and the second torque are in opposite directions, and the first torque is less than the second torque. It can be understood that, in order to buffer the second torque, the direction of the first torque should be opposite to the direction of the second torque, and when the first torque begins to be generated on the reel, the first torque should be less than the second torque. Conversely, if the first torque is controlled to be greater than or equal to the second torque at the first cable release length, then under the action of the first torque, the drop of the surface cleaning device cannot drive the cable reel to rotate, and the cable reel is essentially in a "jammed" state, unable to buffer the second torque.

[0293] In one possible implementation, a second cable release length is provided, which is the length at which the surface cleaning device stops falling. Specifically, from the first cable release length to the second cable release length, the first torque gradually increases to be greater than the second torque. For example, if the first cable release length is 2.5 meters and the second cable release length is 3.5 meters, the surface cleaning device is smoothly dropped by applying the first torque to the reel between 2.5 meters and 3.5 meters of cable release.

[0294] For example, in Figure 35 In the diagram (where the horizontal axis L represents the cable release length and the vertical axis T represents the torque), the first torque gradually increases from the first cable release length L1. Within the cable release length range L1-L', the first torque is less than the second torque, causing the surface cleaning device 100 to fall more rapidly. Within the cable release length range L'-L2, the first torque is greater than the second torque, causing the surface cleaning device 100 to gradually decelerate until it stops, achieving a smooth landing. The cable release length L' is the cable release length where the first torque and the second torque are equal.

[0295] In another possible implementation, the first torque can be gradually increased from the first cable release length L1 to the second cable release length L2, then gradually decreased, wherein during the gradual decrease of the first torque, the first torque is not less than the second torque. For example, in Figure 35 At a certain moment within the cable release length range L'-L2, the first torque is gradually reduced, but it should be ensured that the first torque is always greater than or equal to the second torque. In this implementation, a smaller torque can be used to decelerate the surface cleaning device 100, minimizing the force exerted by the safety rope 3021 on the base station 200. During the process of controlling the gradual reduction of the first torque, it can be controlled to decrease linearly and uniformly, or it can be controlled to decrease gradually according to a non-linear curve; this embodiment does not impose specific limitations on this.

[0296] In addition, to further reduce the impact force generated on the base station 200 at the moment the safety rope 3021 is tightened, this embodiment of the application sets a buffer zone for the cable release length, such as... Figure 35 The cable release length range is L0-L1. L0 is the instant the safety rope 3021 is taut, i.e., the moment the second torque is generated on the reel. In other words, at the moment the second torque is generated on the reel (L0), the first torque applied to the reel is 0, meaning no first torque is generated.

[0297] Of course, those skilled in the art may also omit the cable release length buffer, that is, generate a first torque on the reel that is greater than 0 and less than the second torque starting from the cable release length L0. This application does not impose specific restrictions on this.

[0298] It should be pointed out that, Figure 35 This is merely an illustrative example, and the embodiments of this application do not impose specific limitations on the change curve of the first torque.

[0299] Third fall control strategy:

[0300] Based on the fall speed during the fall event, the motor is controlled to generate the first torque on the winding reel according to the third fall control strategy.

[0301] In specific implementation, the base station 200 can obtain the drop speed of the surface cleaning device 100 in the following ways: First, the drop speed can be detected by an acceleration sensor installed on the surface cleaning device 100, and the detected drop speed can be sent to the base station 200; Second, the rotation speed of the winding wheel can be detected by a Hall element or encoder installed on the winding wheel, thereby determining the drop speed of the surface cleaning device 100; Third, the rotation speed of the motor can be detected by a Hall element or encoder installed on the motor, thereby determining the drop speed of the surface cleaning device 100.

[0302] In some possible implementations, if the falling speed of the surface cleaning device 100 gradually increases, the first torque is controlled to gradually increase until it is greater than the second torque; and / or, if the falling speed of the surface cleaning device 100 gradually decreases, the first torque is controlled to gradually decrease, and the first torque is greater than the second torque. Specifically, during the accelerated falling process of the surface cleaning device 100, if the first torque is less than the second torque, the first torque is controlled to gradually increase so that when the first torque is greater than the second torque, the surface cleaning device 100 is decelerated; during the decelerated falling process of the surface cleaning device 100, if the first torque is greater than the second torque, the first torque is controlled to gradually decrease so that a smaller torque is used to decelerate the surface cleaning device 100, minimizing the force exerted by the safety rope 3021 on the base station 200. It is understood that during the process of controlling the gradual decrease of the first torque, the first torque should always be greater than the second torque to prevent the surface cleaning device 100 from restarting its accelerated falling.

[0303] In this embodiment, the magnitude of the first torque can be adjusted in real time by the drop speed, thereby achieving precise control of the first torque.

[0304] In one possible implementation, when the surface cleaning device 100 stops falling (fall speed is 0), the first torque and the second torque can be controlled to be equal to fix the surface cleaning device 100 in the corresponding position. At this time, the user can manually lift the surface cleaning device 100 and reposition it on the surface to be cleaned; or inspect the surface cleaning device 100.

[0305] In one possible implementation, after the surface cleaning device 100 stops falling, a third torque can be generated on the reel by controlling the motor to pull the surface cleaning device 100 up to a preset position. That is, when the surface cleaning device 100 falls, the motor automatically pulls it up.

[0306] In practice, the first torque can be controlled by adjusting the magnitude of the motor's reverse current or self-locking current. Of course, the method of controlling the motor's output torque may differ depending on the type of motor, and this application does not impose specific limitations on this aspect.

[0307] Corresponding to the above embodiments, this application also provides a base station for a surface cleaning device. The base station includes a reel and a controller, which is used to execute the methods described in the above embodiments. Specifically, the controller can be a microcontroller unit (MCU) or other devices with data storage and processing capabilities; this application does not impose specific limitations on this.

[0308] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0309] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not 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.

[0310] The same or similar parts between the various embodiments in this specification can be referred to mutually. In particular, the terminal embodiments are basically similar to the method embodiments, so the description is relatively simple, and the relevant parts can be referred to the description in the method embodiments.

[0311] The embodiments described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A base station for use in a surface cleaning device, characterized in that, The forward and backward directions are defined on the base station, which includes: An energy storage device is provided for supplying power to the surface cleaning device via a cable connecting the base station and the surface cleaning device. A cable reel for receiving or releasing the cable; A cleaning fluid container and a surface cleaning device container are disposed on the side of the base station; the cleaning fluid container is located on the side of the energy storage device and / or the cable reel; the surface cleaning device container is located on the side of the cable reel and / or the energy storage device. The energy storage device is located on one side of the cable reel, and the projections of the energy storage device and the cable reel in the front-back direction at least partially overlap.

2. The base station according to claim 1, characterized in that, The projection of the energy storage device in the front-back direction overlaps the projection of the cable reel in the front-back direction.

3. The base station according to claim 1, characterized in that, The projection of the reel in the front-back direction overlaps the projection of the energy storage device in the front-back direction.

4. The base station according to claim 1, characterized in that, The reel is located on the front side of the energy storage device.

5. The base station according to claim 1, characterized in that, The cleaning fluid container is used to hold the cleaning fluid.

6. The base station according to claim 5, characterized in that, The projections of the cleaning fluid container and the energy storage device in the front-back direction at least partially overlap.

7. The base station according to claim 5, characterized in that, The projections of the cleaning fluid container and the reel in the front-back direction at least partially overlap.

8. The base station according to claim 5, characterized in that, The cleaning fluid container is detachably connected to the base station.

9. The base station according to claim 5, characterized in that, The cleaning fluid container is located behind the energy storage device and / or the reel.

10. The base station according to claim 9, characterized in that, The cleaning fluid container is located at the rear of the energy storage device, and the energy storage device is located at the rear of the cable reel.

11. The base station according to any one of claims 5-10, characterized in that, The base station also includes: The housing has a cavity for receiving the surface cleaning device, which is used to confine the surface cleaning device on the housing.

12. The base station according to claim 11, characterized in that, The surface cleaning device housing is located in front of the reel and / or the energy storage device.

13. The base station according to claim 12, characterized in that, The base station is provided with, from front to back, the surface cleaning device accommodating cavity, the cable reel, the energy storage device, and the cleaning fluid accommodating tank.

14. A base station for use in a surface cleaning device, characterized in that, The forward and backward directions are defined on the base station, which includes: The housing has a surface cleaning device receiving cavity and a force application part. The surface cleaning device receiving cavity is used to limit the surface cleaning device on the housing, and the force application part is configured to provide a force application point for the user. An energy storage device is disposed inside the housing, and the energy storage device is used to supply power to the surface cleaning device through a cable connecting the base station and the surface cleaning device; A cable reel, disposed inside the housing, for receiving or releasing the cable; A cleaning fluid container for containing cleaning fluid; the cleaning fluid container is located on the side of the energy storage device and / or the cable reel; A surface cleaning device receiving cavity is disposed on the side of the base station; the surface cleaning device receiving cavity is located on the side of the cable reel and / or the energy storage device; The energy storage device is located on one side of the cable reel, and the projections of the energy storage device and the cable reel in the front-back direction at least partially overlap.

15. A surface cleaning system, characterized in that, It includes a surface cleaning device and a base station as described in any one of claims 1-14, wherein the base station and the surface cleaning device are connected by a cable.

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