Self-cleaning control method and control device for a cleaning system

Abstract

This invention relates to a self-cleaning control method and control device for a cleaning system. The cleaning system includes a cleaning device and a base assembly. The cleaning device includes a suction motor, a roller brush, and a first scraper. The first scraper is located behind the roller brush and is configured to clean the surface to be cleaned. The base assembly includes a base body and a first nozzle disposed on the base body. The base body has a cleaning tank that accommodates the roller brush and the first scraper. The spraying area of ​​the first nozzle is located at least between the rear side of the first scraper and the rear wall of the cleaning tank. The self-cleaning control method includes: in a self-cleaning mode, while the roller brush rotates and the suction motor performs a suction action, controlling the first nozzle to spray liquid. The liquid sprayed by the first nozzle is used to clean at least the first scraper. The water sprayed by the first nozzle can rinse the rear side of the first scraper, washing away sticky and stubborn stains on the rear side of the first scraper.

Description

Technical Field

[0001] This invention relates to the field of cleaning technology, and in particular to a self-cleaning control method and control device for a cleaning system. Background Technology

[0002] Floor scrubbers, vacuum cleaners, and other intelligent floor cleaning equipment are widely used in homes and commercial spaces due to their convenience and efficiency. Taking floor scrubbers as an example, to facilitate user maintenance of cleaning components such as the roller brush, the floor scrubber requires a self-cleaning process on its base assembly. After activating the self-cleaning program, water is supplied to the cleaning tank on the base assembly, causing the roller brush to be soaked and rotate at high speed. Simultaneously, the main fan generates a negative pressure suction, drawing the dirt generated during self-cleaning into the wastewater tank, thus achieving the purpose of cleaning the roller brush.

[0003] However, after self-cleaning, residual wastewater and dirt often remain on the surface of the base components. These residues can easily breed bacteria and produce odors, requiring frequent manual cleaning by the user, resulting in a poor user experience. Summary of the Invention

[0004] To address at least one technical problem raised in the background art, embodiments of this application provide a self-cleaning control method and control device for a cleaning system.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] The first aspect of this application provides a self-cleaning control method for a cleaning system, the cleaning system including a cleaning device and a base assembly;

[0007] The cleaning device includes a suction motor, a roller brush, and a first scraper, the first scraper being located behind the roller brush and configured to clean the surface to be cleaned;

[0008] The base assembly includes a base body and a first nozzle disposed on the base body. The base body has a cleaning groove for accommodating the roller brush and the first scraper. The spraying area of ​​the first nozzle is located at least between the rear side of the first scraper and the rear wall of the cleaning groove. The self-cleaning control method includes:

[0009] In self-cleaning mode, while the roller brush is rotating and the suction motor is performing a suction action, the first nozzle is controlled to spray liquid, and the liquid sprayed by the first nozzle is used to clean the first scraper.

[0010] In self-cleaning mode, since the first scraper is located inside the cleaning tank, the surge of water generated by the rotating roller brush or the impact force generated during the suction process of the suction motor can wash away the dirt on the front side of the first scraper. However, during the rotation of the roller brush, some dirt is rolled into the area of ​​the first scraper away from the roller brush, and this area is difficult to clean during the self-cleaning process of the roller brush. Based on this, the first nozzle of this application is designed such that, during spraying, its spraying area is at least partially located between the first scraper and the rear wall of the cleaning tank; that is, the water sprayed by the first nozzle can not only wash away the dirt on the rear side of the cleaning tank, but also rinse the rear side of the first scraper, removing the sticky and stubborn stains on the rear side of the first scraper. Furthermore, under the suction action of the suction motor, the dirt washed away by the first nozzle can pass through the space between the bottom of the first scraper and the bottom wall of the cleaning tank and be sucked into the suction port.

[0011] Furthermore, the self-cleaning method of this application can not only clean the roller brush, but also perform deep cleaning on the base body area corresponding to the cleaning device, avoiding dirt residue on the base components during the self-cleaning process of the roller brush. While effectively improving the self-cleaning effect, it can also avoid problems such as odor caused by dirt residue on the base components.

[0012] Optionally, the self-cleaning control method includes:

[0013] In response to a self-cleaning command, the roller brush is controlled to rotate and the suction motor is started.

[0014] The first nozzle is activated when the roller brush rotates and the suction motor is started.

[0015] Optionally, the self-cleaning mode includes a cleaning phase, and the self-cleaning control method includes:

[0016] During the cleaning phase, the first nozzle is activated when the suction motor is not running for the last time.

[0017] Optionally, the self-cleaning control method includes: controlling the first nozzle to spray continuously for a first preset time and then stopping.

[0018] Optionally, the base assembly includes a second nozzle with its nozzle facing the cleaning tank, and the spray area of ​​the second nozzle is at least partially located in front of the roller brush. The self-cleaning control method includes:

[0019] In the self-cleaning mode, while the roller brush is rotating forward and the suction motor is performing a suction action, the second nozzle is controlled to spray liquid, wherein the roller brush can roll the dirt backward when rotating forward.

[0020] Optionally, the base body is provided with the second nozzle on both sides of the roller brush;

[0021] The cleaning device further includes a second scraper located in front of the roller brush; the second scraper is configured to switch between a cleaning position and a raised position relative to the surface to be cleaned; when the second scraper is in the cleaning position, the second scraper is in contact with the surface to be cleaned; when the second scraper is in the raised position, the second scraper is separated from the surface to be cleaned; the self-cleaning control method includes:

[0022] In self-cleaning mode, during the rotation of the roller brush and the suction action of the suction motor, the second nozzle is controlled to spray liquid, and the spraying area of ​​the second nozzle is at least partially located between the second scraper and the roller brush.

[0023] Optionally, the self-cleaning control method further includes controlling the second nozzle to spray liquid when the roller brush rotates, the suction motor performs a suction action, and the second scraper is in the cleaning position.

[0024] Optionally, the self-cleaning control method includes: controlling the second nozzle to spray for a second preset time and then stopping.

[0025] A second aspect of this application provides a self-cleaning control method for a cleaning system, the cleaning system including a cleaning device and a base assembly;

[0026] The cleaning equipment includes a suction motor and a roller brush;

[0027] The base assembly includes a base body and a second nozzle. The base body has a cleaning groove for accommodating the roller brush. The nozzle of the second nozzle faces the cleaning groove, and the spray area of ​​the second nozzle is at least partially located in front of the roller brush. The self-cleaning control method includes:

[0028] In self-cleaning mode, while the roller brush is rotating forward and the suction motor is performing a suction action, the second nozzle is controlled to spray liquid, wherein the roller brush can roll the dirt backward when rotating forward.

[0029] Optionally, the cleaning device further includes a second scraper located on the front side of the roller brush; the second scraper is configured to switch between a cleaning position and a raised position relative to the surface to be cleaned, wherein when the second scraper is in the cleaning position, the second scraper is in contact with the surface to be cleaned; and when the second scraper is in the raised position, the second scraper is separated from the surface to be cleaned.

[0030] The second nozzle is located at the axial end of the roller brush; the self-cleaning control method includes:

[0031] In self-cleaning mode, during the rotation of the roller brush and the suction action of the suction motor, the second nozzle is controlled to spray liquid, and the spraying area of ​​the second nozzle is at least partially located between the second scraper and the roller brush.

[0032] Optionally, the self-cleaning control method includes controlling the second nozzle to spray liquid when the roller brush rotates, the suction motor performs a suction action, and the second scraper is in the cleaning position.

[0033] A third aspect of the application provides a control device for a cleaning system, the cleaning system including cleaning equipment and a base assembly;

[0034] The cleaning device includes a suction motor, a roller brush, and a first scraper, the first scraper being located behind the roller brush and configured to clean the surface to be cleaned;

[0035] The base assembly includes a base body and a first nozzle disposed on the base body. The base body has a cleaning groove for accommodating the roller brush and the first scraper. The spraying area of ​​the first nozzle is at least partially located between the rear side of the first scraper and the rear wall of the cleaning groove. The control device includes:

[0036] A first control module is configured to control the first nozzle to spray liquid during the self-cleaning mode, while the roller brush is rotating and the suction motor is performing a suction action, wherein the liquid sprayed by the first nozzle is used to clean the first scraper.

[0037] The fourth aspect of the application provides a control device for a cleaning system, the cleaning system including cleaning equipment and a base assembly;

[0038] The cleaning equipment includes a suction motor and a roller brush;

[0039] The base assembly includes a base body and a second nozzle. The base body has a cleaning groove for accommodating the roller brush. The nozzle of the second nozzle faces the cleaning groove, and the spray area of ​​the second nozzle is at least partially located in front of the roller brush. The self-cleaning control device includes:

[0040] The second control module is used to control the second nozzle to spray liquid in self-cleaning mode when the roller brush is rotating forward and the suction motor is performing a suction action, wherein the roller brush can roll the dirt backward when rotating forward. Attached Figure Description

[0041] 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, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 The following are schematic diagrams of the cleaning system in some embodiments of this application;

[0043] Figure 2 This is a partial cross-sectional view of the cleaning system along the front-to-back direction in some embodiments of this application;

[0044] Figure 3 This is a flowchart illustrating the self-cleaning control method in some embodiments of this application;

[0045] Figure 4 This is a schematic diagram of the structure of the cleaning system in some other embodiments of this application;

[0046] Figure 5 This is a schematic diagram of the structure of a cleaning device with a scraper assembly located on a base assembly in some embodiments of this application;

[0047] Figure 6 This is a partial structural diagram of the cleaning system in some embodiments of this application, wherein, with Figure 4 The difference is, Figure 5 The first nozzle was not installed in the middle;

[0048] Figure 7 This is a schematic diagram of the structure of the base assembly in some embodiments of this application;

[0049] Figure 8 The following are schematic diagrams of the structure of the cleaning equipment in some embodiments of this application;

[0050] Figure 9 This is a structural block diagram of the control device in some embodiments of this application;

[0051] Figure 10 This is a structural block diagram of the control device in some other embodiments of this application.

[0052] Explanation of reference numerals in the attached figures:

[0053] 10. Base assembly; 100. Base body; 110. Clean water tank; 120. Waste water tank; 130. Suction motor; 140. Body; 141. Handle; 11. Cleaning tank; 111. Rear wall of cleaning tank; 112. Bottom wall of cleaning tank; 12. Support unit; 121. Front wall of support unit; 122. Side wall of support unit; 13. Charging terminal; 20. Floor brush assembly; 21. Floor brush body; 22. Roller brush; 23. First scraper; 24. Suction port; 30. First nozzle; 40. Second nozzle; 50. Scraper assembly; 51. Second scraper. Detailed Implementation

[0054] To make the technical solution and beneficial effects of the present invention more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0055] like Figure 1 As shown, the cleaning system includes a cleaning device and a base assembly 10. When the surface to be cleaned needs to be cleaned, the cleaning device can be detached from the base assembly 10. When maintenance such as self-cleaning, drying, or charging of the cleaning device is required, the cleaning device is placed on the base assembly 10.

[0056] The base assembly 10 is provided with a charging terminal 13 for charging the cleaning equipment.

[0057] Cleaning equipment includes, but is not limited to, floor scrubbers, electric mops, etc.

[0058] The cleaning equipment of this application embodiment will be described below using a floor scrubber as an example. It should be understood that the floor scrubber is only an example and does not constitute a limitation on the embodiments of this specification.

[0059] The cleaning equipment includes a floor brush assembly 20. When in operation, the floor brush assembly 20 can move back and forth in front of the surface to be cleaned. During this process, the floor brush assembly 20 cleans the surface to be cleaned by contacting and rubbing the cleaning element at the bottom.

[0060] Floor brush assembly 20 includes floor brush body 21 and cleaning components, see Figure 8 The cleaning device has a body 140, one end of which is rotatably connected to the brush body 21, and the other end has a handle 141. During cleaning, the user can hold the handle 141 to move the brush body 21, which in turn causes the cleaning components to rub against the surface to be cleaned, thus cleaning the surface. Surfaces to be cleaned include, but are not limited to, floors, carpets, walls, and tabletops. In this embodiment, the surface to be cleaned is described using a floor as an example.

[0061] The floor brush assembly 20 can move forward or backward on the surface to be cleaned.

[0062] In some implementations, the cleaning equipment may also include a clean water tank 110, which can provide cleaning liquid to the cleaning component to wet it, so that the cleaning component can wet the stains on the surface to be cleaned during the cleaning process, reduce the adhesion of the stains, and improve the cleaning effect.

[0063] In some implementations, the cleaning equipment may also include a wastewater tank 120 and a suction motor 130. The wastewater tank 120 is used to collect dirt generated during the cleaning process, which is generally a solid-liquid mixture. The suction motor 130 provides negative pressure, under which dirt from the surface to be cleaned is drawn into the wastewater tank 120 through the suction port 24 at the bottom of the floor brush body 21.

[0064] In one possible implementation, the cleaning device also includes assist wheels for assisting the movement of the floor brush.

[0065] In one possible implementation, the cleaning device may also include a sensing system (not shown).

[0066] The sensing system may include at least one of the following: a vision sensor, a laser sensor, a gyroscope, an accelerometer, a speed sensor, a mechanical sensor, an infrared sensor, an ultrasonic sensor, an angle sensor, and a Hall sensor, to acquire at least one type of information, such as the level of dirt, the motion status of the cleaning equipment, its location, and obstacle information.

[0067] For example, speed sensors and accelerometers can be used to detect the speed and acceleration of cleaning equipment. Infrared sensors, ultrasonic sensors, and vision sensors can be used to detect the distance between the cleaning equipment and obstacles.

[0068] For example, the cleaning component is a roller brush 22. The floor brush assembly 20 also includes a roller brush motor for driving the roller brush 22 to rotate. The operating parameters of the roller brush motor can be detected using a Hall sensor to determine the rotation status of the roller brush 22, such as the direction of movement and rotation speed of the roller brush 22.

[0069] In this embodiment, the execution entity of the control method can be a controller installed in the cleaning equipment, or it can be a server or mobile terminal corresponding to the cleaning equipment. The server is located in the cloud and connects to the cleaning equipment via a network to issue user commands to the cleaning equipment. The mobile terminal includes mobile phones, wearable devices, or computers, etc.

[0070] The controller described above may include a microcontroller unit (MCU). Of course, the controller may also include other devices capable of control functions.

[0071] The control method in this application embodiment is illustrated using a controller in a cleaning device as the executing entity.

[0072] Besides the self-cleaning process mentioned in the background section, which easily leaves dirt residue on the base assembly 10, the bottom of the floor brush assembly 20 of the cleaning device also tends to accumulate dirt. For example, to improve the scraping effect on the surface to be cleaned, the floor brush body 21 of the cleaning device typically has a rear scraper on the back side of the suction port 24 (which is also the back side of the roller brush 22). During cleaning, the rear scraper can make interference contact with the surface to be cleaned to scrape the dirt forward to the suction port 24. After cleaning, dirt easily adheres to both the front and back sides of the rear scraper. The self-cleaning process cannot clean the dirt behind the rear scraper, especially sticky and heavy dirt, which requires manual cleaning by the user with tools.

[0073] To improve the above problems, combined with Figures 1 to 10 The embodiments of this application provide the following technical solutions.

[0074] See Figure 1 and Figure 2 The cleaning system includes a cleaning device and a base assembly 10. The cleaning device includes a suction motor 130, a roller brush 22, and a first scraper 23, which is located behind the roller brush 22 and is configured to clean the surface to be cleaned.

[0075] The base assembly 10 includes a base body 100 and a first nozzle 30 disposed on the base body 100. The base body 100 has a cleaning groove 11 that accommodates a roller brush 22 and a first scraper 23. The spraying area of ​​the first nozzle 30 is located at least between the rear side of the first scraper 23 and the rear wall 111 of the cleaning groove 11.

[0076] The first scraper 23 is the aforementioned rear scraper.

[0077] See Figure 1 The front-to-back direction is defined as the direction in which the first scraper 23 and the cleaning component are arranged side-by-side on the base body 100, with the cleaning component located in front of the first scraper 23. The lateral direction is defined as perpendicular to the front-to-back direction and parallel to the extension direction of the cleaning tank 11. The lateral direction is also the axial direction of the roller brush 22.

[0078] Based on the foregoing description, see Figure 3 This application provides a self-cleaning control method for a cleaning system, which includes the following steps:

[0079] S110. In self-cleaning mode, while the roller brush 22 is rotating and the suction motor 130 is performing a suction action, the first nozzle 30 is controlled to spray liquid. The liquid sprayed by the first nozzle 30 is used to clean the first scraper 23.

[0080] For ease of description, in this embodiment, "liquid" is water as an example, and the cleaning component is a roller brush 22 as an example.

[0081] In this application, the self-cleaning mode includes a cleaning stage and a drying stage. During the cleaning stage, cleaning water is provided to the roller brush 22 or the cleaning tank 11, and the roller brush motor is controlled to drive the roller brush 22 to rotate. Dirt generated during the cleaning process is collected by the suction motor 130 into the wastewater tank 120. Typically, the base assembly 10 is equipped with a drying assembly, which includes a drying fan and a drying duct. After cleaning, the drying fan is activated. The drying airflow generated by the drying fan is blown onto the roller brush 22 through the drying duct, drying the roller brush 22 to a fluffy state. Step S110 pertains to the cleaning stage.

[0082] When the cleaning equipment is placed on the base assembly 10, the cleaning equipment can perform self-cleaning, and the roller brush 22 is cleaned and dried in the cleaning tank 11.

[0083] In step S110, in self-cleaning mode, since the first scraper 23 is located inside the cleaning tank 11, the surge of water generated by the rotation of the roller brush 22 in the cleaning tank 11, or the impact force generated during the suction process of the suction motor 130, can wash away the dirt on the front side of the first scraper 23. However, during the rotation of the roller brush 22, some dirt will be rolled into the area of ​​the first scraper 23 away from the roller brush, and the dirt in this area is difficult to clean during the self-cleaning process of the roller brush 22. Based on this, the first nozzle 30 provided in this application, during the spraying process, see... Figure 2 The spray area is at least partially located between the first scraper 23 and the rear wall 111 of the cleaning tank 11; that is, the water sprayed by the first nozzle 30 can not only wash away the dirt on the rear side of the cleaning tank 11, but also rinse the rear side of the first scraper 23, removing sticky and stubborn stains from the rear side of the first scraper 23. Furthermore, under the suction action of the suction motor 130, the dirt washed away by the first nozzle 30 can pass through the space between the bottom of the first scraper 23 and the bottom wall 112 of the cleaning tank 11, and be sucked into the suction port 24.

[0084] Furthermore, the self-cleaning method of this application can not only clean the roller brush 22, but also perform deep cleaning on the base body 100 area corresponding to the cleaning device, avoiding dirt residue on the base assembly 10 during the self-cleaning process of the roller brush 22. While effectively improving the self-cleaning effect, it can also avoid problems such as odor caused by dirt residue on the base assembly 10.

[0085] The roller brush rotates 22 clockwise (see...) Figure 5During the clockwise process (as indicated by arrow A), the dirt on the front side of the cleaning tank 11 is rolled towards the suction port 24 on the rear side. The suction port 24 is closer to the first scraper 23. Therefore, dirt tends to concentrate on the rear side of the cleaning tank 11, especially near the suction port 24. The first spray head 30 sprays water behind the roller brush 22, which is more targeted at removing dirt remaining on the rear side of the cleaning tank 11 and near the suction port 24, resulting in a better cleaning effect on the base assembly 10.

[0086] See Figure 7 The portion of the base body 100 located outside the cleaning tank 11 is the support portion 12, which supports the floor brush body 21. The aforementioned charging terminal 13 is located on the support portion 12. The first nozzle 30 sprays water towards the cleaning tank 11, which effectively prevents the sprayed water from hitting the support portion 12 behind the cleaning tank 11, reducing the impact of water on charged components such as the charging terminal 13 on the support portion 12.

[0087] For example, the first nozzle 30 may be a solid conical nozzle, which has a strong directional impact force and can better concentrate the jet flow in the narrow space between the first scraper 23 and the rear wall 111 of the cleaning tank 11.

[0088] In some implementations, the center line of the nozzle of the first nozzle 30 is not parallel to the axis of the roller brush 22, and there is a certain angle between them. Furthermore, the nozzle of the first nozzle 30 is slightly inclined towards the first scraper 23. This can further reduce the impact of the jet flow on the bearing portion 12 behind the cleaning tank 11, and to a certain extent, it is more beneficial to the cleaning effect on the rear side of the first scraper 23.

[0089] In some alternative embodiments, the self-cleaning control method includes the steps of:

[0090] S210, in response to the self-cleaning command, controls the rotation of the roller brush 22 and starts the suction motor 130;

[0091] S220, with the roller brush 22 rotating and the suction motor 130 starting, the first nozzle 30 is activated.

[0092] In other words, the first nozzle 30 can be activated when the self-cleaning process begins to absorb waste. Steps S210 and S220 can be performed before the aforementioned step S110. For example, when a self-cleaning command is detected, the cleaning device enters self-cleaning mode, and simultaneously or almost simultaneously, the roller brush 22, the suction motor 130, and the first nozzle 30 are activated. Furthermore, as described in S110, the first nozzle 30 sprays water while the roller brush 22 and the suction motor 130 are both operating. In this way, even if the first nozzle 30 sprays at a high flow rate and high pressure, the dirt can be sucked away in time, minimizing the risk of dirt overflowing from the cleaning tank 11.

[0093] In an unrestricted manner, activating the first nozzle 30 includes: energizing the water pump so that it delivers water to the first nozzle 30. Alternatively, when the first nozzle 30 shares the same water pump with other components (such as the second nozzle 40 mentioned below), and water flows to different water paths via a solenoid valve, the solenoid valve is energized, and the solenoid valve is controlled to connect the water pump and the water path where the first nozzle 30 is located.

[0094] After the cleaning device is connected to the base assembly 10, it can automatically generate a self-cleaning command. Alternatively, after the cleaning device is connected to the base assembly 10, it can automatically generate a self-cleaning command when the dirt sensor detects that the roller brush 22 is dirty. Of course, the self-cleaning command can also be passively generated during human-computer interaction. For example, the user can press the corresponding button on the device, or the user can speak the self-cleaning command, or the user can remotely send the self-cleaning command to the controller using a mobile phone or other terminal.

[0095] For example, in self-cleaning mode, the operating status of the suction motor 130 can be monitored in real time (such as detecting level changes in the drive signal or the presence or absence of motor current). When the suction motor 130 is detected to switch from the stop state to the running state, and the pre-marked first start flag is valid, it is determined that the current start is the first start in the self-cleaning process, and the aforementioned step S220 is executed to activate the first nozzle 30.

[0096] In some optional embodiments, the self-cleaning mode includes a cleaning phase, and the self-cleaning control method includes the following steps: S310, during the self-cleaning phase, when the suction motor 130 is not started for the last time, the first nozzle 30 is activated.

[0097] The state of the suction motor 130 during its last start can be represented as the state of the suction motor 130 being started for the last time during the cleaning phase. In other words, the first nozzle 30 can also be activated during the last wastewater recovery before the end of the cleaning phase.

[0098] Based on the foregoing description, in self-cleaning mode, the first nozzle 30 can be activated twice: once when self-cleaning begins to collect debris, and again when wastewater is collected for the last time before the end of the cleaning phase. After the first rinse is completed, the first nozzle 30 stops spraying. It is then activated a second time when wastewater is collected for the last time before the end of the cleaning phase, thus improving the cleaning effect.

[0099] For example, the last start status of the suction motor 130 can be identified based on a fixed procedure. For instance, the self-cleaning mode presets a fixed total number of suction cycles. The controller has a counter that increments each time the suction motor 130 starts after self-cleaning begins. When the count value equals the preset total number of cycles, the controller determines that this start is the last start and activates the first nozzle 30 at the same time as issuing a start signal for the suction motor 130.

[0100] In some alternative embodiments, the self-cleaning control method includes: controlling the first nozzle 30 to spray continuously for a first preset time and then stopping.

[0101] After activating the first nozzle 30 in steps S220 and S310, the spraying time of the first nozzle 30 can be controlled to a first preset time before stopping. For example, the first nozzle 30 is activated for the first time and sprays for the first preset time, then the first nozzle 30 is turned off, and the water washing self-cleaning operation continues. The first nozzle 30 is activated again when the suction motor is started for the last time. In this way, the first nozzle 30 does not need to spray continuously for a long time, which can better balance cleaning effect and resource saving.

[0102] For example, the first preset time is 5s to 10s.

[0103] In other implementations, the self-cleaning control method includes controlling the first nozzle 30 to spray a preset amount of water and then stopping. A flow meter or similar device can be installed in the corresponding water path to detect the amount of water sprayed through the first nozzle 30.

[0104] In some alternative embodiments, the base assembly 10 includes a second nozzle 40 with its nozzle facing the cleaning tank 11, and the spray area of ​​the second nozzle 40 is at least partially located in front of the roller brush 22. The self-cleaning control method includes:

[0105] S400 In self-cleaning mode, when the roller brush 22 is rotating forward and the suction motor is performing a suction action, the second nozzle 40 is controlled to spray liquid. When the roller brush 22 is rotating forward, it can roll the dirt backward.

[0106] In self-cleaning mode, especially during the washing phase, the roller brush 22 reverses and throws some debris forward. In existing technologies, this debris is difficult to recover and return to the suction port 24 during subsequent cleaning of the roller brush 22. However, in this application, because a second nozzle 40 is provided, it can spray water into the rear washing tank 11, washing the debris back onto the roller brush 22. As a result, when the roller brush 22 rotates forward, it can roll the debris back into the suction port 24.

[0107] Based on the aforementioned step S400, in some embodiments, the self-cleaning control method includes: in the self-cleaning mode, when the roller brush 22 is switched from reverse rotation to forward rotation and the suction motor 130 is performing a suction action, controlling the second nozzle 40 to spray liquid.

[0108] Figure 4 and Figure 5In the illustrated implementation, the base assembly 10 is equipped with both a first nozzle 30 and a second nozzle 40. The second nozzle 40 and the first nozzle 30 work together to further improve the cleaning ability of dirt on the base body 100 and improve the amount of residual debris on the base assembly 10 after self-cleaning. The large volume of water spray can also dilute the concentration of particulate matter, making the base body 100 cleaner after self-cleaning.

[0109] In some cleaning equipment, to improve cleaning effectiveness, see... Figure 5 A lifting scraper assembly 50 is provided on the front side of the cleaning device. The scraper assembly 50 includes a drive unit, a transmission unit, and a scraper. For distinction, the scraper of the scraper assembly 50 is referred to as the second scraper 51. The drive unit provides a power source, and the transmission unit converts the rotation generated by the power source into the lifting motion of the second scraper 51, thereby enabling the second scraper 51 to switch between a raised position and a cleaning position. When the second scraper 51 is in the cleaning position, the second scraper 51 is in interference contact with the surface to be cleaned. When the second scraper 51 is in the raised position, the second scraper 51 is separated from the surface to be cleaned. Typically, during the forward movement of the cleaning device, the second scraper 51 is in the raised position to ensure that dirt is rolled towards the suction port 24 by the roller brush 22. During the backward movement of the cleaning device, the second scraper 51 is in the cleaning position (see...). Figure 5 and Figure 6 The second nozzle 40 is used to scrape away water stains on the surface to be cleaned. However, some cleaning devices do not have this scraper assembly 50. For these two different types of cleaning devices, the specific location of the second nozzle 40 on the front side of the cleaning component is different. The specific implementation of the lifting scraper assembly 50 is not intended to limit this application; please refer to the prior art, which will not be repeated here.

[0110] For cleaning equipment that does not include the aforementioned scraper assembly 50, the second nozzle 40 can be located directly in front of the roller brush 22. See also Figure 4 In some alternative embodiments, the second nozzle 40 is located on the front wall 121 of the support portion 12, and sprays liquid into the cleaning tank 11 from the rear. In this case, the installation space of the support portion 12 on the front side of the cleaning tank 11 is larger, and the second nozzle 40 is easier to install and arrange. For example, multiple second nozzles 40 can be arranged side by side on the front wall 121 of the support portion 12 in the transverse direction. Multiple second nozzles 40 can reduce the requirements for the spray range of the nozzles and can also better cover the entire area of ​​the roller brush 22.

[0111] based on Figure 4 The second nozzle 40 is tilted downwards and backwards towards the cleaning tank 11. The second nozzle 40 can be a wide-angle nozzle with a large spray range to cover the lateral width of the cleaning tank 11 as much as possible. If there is only one second nozzle 40, it can be positioned directly opposite the roller brush 22, roughly aligned with the center of the roller brush 22.

[0112] For a cleaning device equipped with the aforementioned scraper assembly 50, in some alternative embodiments, the base body 100 has a second nozzle 40 near the lateral end of the roller brush 22. The cleaning device also includes a second scraper 51 located in front of the roller brush 22; the second scraper 51 is configured such that, in the cleaning position, the second scraper 51 contacts the surface to be cleaned; and in the raised position, the second scraper 51 separates from the surface to be cleaned. The self-cleaning method includes the following steps:

[0113] S500, In self-cleaning mode, during the rotation of the roller brush 22 and the suction action of the suction motor 130, the second nozzle 40 is controlled to spray liquid, and the spraying area of ​​the second nozzle 40 is at least partially located between the second scraper 51 and the roller brush 22.

[0114] For cleaning equipment equipped with the aforementioned scraper assembly 50, positioning the second nozzle 40 on the lateral side of the cleaning component allows for better coordination with the lifting and lowering motion of the second scraper 51, thereby improving the cleaning effect. When it is necessary to clean the dirt thrown out by the reverse rotation of the roller brush, the second scraper 51 can be raised to the raised position.

[0115] Based on the aforementioned step S500, in some implementations, the self-cleaning control method further includes:

[0116] While the roller brush 22 is rotating, the suction motor 130 is performing a suction action, and the second scraper 51 is in the cleaning position, the second nozzle 40 is controlled to spray liquid.

[0117] During the cleaning process, dirt tends to adhere to the inner side of the second scraper 51 (i.e., the side facing the rear of the roller brush 22). During the self-cleaning process, the second scraper 51 is lowered to the cleaning position, and the second nozzle 40 can be used to rinse away the dirt adhering to the inner side of the second scraper 51, thus achieving self-cleaning of the second scraper 51.

[0118] The bottom of the second scraper 51 in the cleaning position can contact the bottom wall 112 of the cleaning tank 11 and form a water barrier to effectively prevent the water sprayed from the second nozzle 40 from flowing to the front of the second scraper 51.

[0119] For example, based on Figure 5 and Figure 6 In the illustrated implementation, the second nozzle 40 is mounted on the side wall 122 of the support portion 12. The second nozzle 40 can be provided at both lateral ends of the base body 100.

[0120] In some alternative embodiments, the self-cleaning control method includes: controlling the second nozzle 40 to spray for a second preset time and then stopping.

[0121] For example, the second preset time is 5s to 10s.

[0122] The second nozzle sprays continuously for a certain period of time and then stops, allowing for intermittent spraying. It can be turned on as needed, balancing cleaning effectiveness and resource conservation.

[0123] In other implementations, the self-cleaning control method includes controlling the second nozzle 40 to spray a preset amount of water and then stopping. A flow meter or similar device can be installed in the corresponding water path to detect the amount of water sprayed through the second nozzle 40.

[0124] If the first nozzle 30 and the second nozzle 40 share a water pump, and they switch between different water paths via a solenoid valve, then to ensure sufficient water pressure, the second nozzle 40 and the first nozzle 30 can spray at different times. If no solenoid valve is used for switching, the second nozzle 40 can be activated synchronously with the first nozzle 30. However, different water volumes can be supplied to the first nozzle 30 or the second nozzle 40 through water path settings (e.g., different inner diameters of the two water paths connected to the water pump). For example, more water can be supplied to the second nozzle 40.

[0125] In other implementations, see Figure 6 The base assembly 10 may omit the aforementioned first nozzle 30 and only include the second nozzle 40. Alternatively, as... Figure 1 As shown, a first nozzle 30 is set, but a second nozzle 40 is not set.

[0126] If the cleaning equipment is equipped with a second nozzle 40 but not a first nozzle 30, the control method of this application embodiment can execute the aforementioned steps related to the second nozzle 40, such as step S400, but does not include steps related to the first nozzle 30. Specific steps are described above and will not be repeated here.

[0127] See Figure 9 This application also provides a control device for a cleaning system, which includes a cleaning device and a base assembly 10. The cleaning device includes a suction motor 130, a roller brush 22, and a first scraper 23. The first scraper 23 is located behind the roller brush 22 and is configured to clean the surface to be cleaned. The base assembly 10 includes a base body 100 and a first nozzle 30 disposed on the base body 100. The base body 100 has a cleaning tank 11 that accommodates the roller brush 22 and the first scraper 23. The spray area of ​​the first nozzle 30 is at least partially located between the rear side of the first scraper 23 and the rear wall 111 of the cleaning tank 11. The control device includes:

[0128] The first control module is used to control the first nozzle 30 to spray liquid during the self-cleaning mode when the roller brush 22 rotates and the suction motor performs the suction action. The liquid sprayed by the first nozzle 30 is used to clean the first scraper 23.

[0129] In some alternative embodiments, the control device includes:

[0130] The start-up module is used to control the rotation of the roller brush 22 and the start of the suction motor 130 in response to the self-cleaning command;

[0131] With the roller brush 22 rotating and the suction motor started, the first nozzle 30 is activated.

[0132] In some alternative embodiments, the self-cleaning mode includes a cleaning phase, and the control device includes:

[0133] The third control module is used to activate the first nozzle 30 during the cleaning phase, when the suction motor is not running for the last time.

[0134] In some alternative embodiments, the control device includes a fourth control module for controlling the first nozzle 30 to stop spraying after a first preset time.

[0135] In some alternative embodiments, the base assembly 10 includes a second nozzle 40 with its nozzle facing the cleaning tank 11, and the spray area of ​​the second nozzle 40 is at least partially located in front of the roller brush 22. The control device includes:

[0136] The second control module is used to control the second nozzle 40 to spray liquid when the roller brush 22 is rotating forward and the suction motor 130 is performing a suction action in self-cleaning mode. When the roller brush 22 is rotating forward, it can roll the dirt backward.

[0137] If the cleaning equipment is equipped with a second nozzle 40 but not a first nozzle 30, see [link / reference]. Figure 10 Therefore, the control device in this application embodiment includes modules related to the second nozzle 40, such as a second control module, but does not include modules related to the first nozzle 30, such as a first control module, a second control module, or a fourth control module.

[0138] In some optional embodiments, the base body 100 is provided with second nozzles 40 on both lateral sides of the roller brush 22; the cleaning device also includes a second scraper 51 located on the front side of the roller brush 22; the second scraper 51 is configured to switch between a cleaning position and a raised position relative to the surface to be cleaned, wherein when the second scraper 51 is in the cleaning position, the second scraper 51 is in contact with the surface to be cleaned; and when the second scraper 51 is in the raised position, the second scraper 51 is separated from the surface to be cleaned; the control device includes:

[0139] The fifth control module is used to control the second nozzle 40 to spray liquid between the second scraper 51 and the roller brush 22 during the self-cleaning mode, when the roller brush 22 is rotating and the suction motor 130 is performing a suction action, and the second scraper 51 is in the cleaning position.

[0140] In some alternative embodiments, the control device includes a sixth control module for controlling the second nozzle 40 to stop spraying after a second preset time.

[0141] Furthermore, embodiments of this application also provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the above-described control method.

[0142] The computer-readable storage medium provided in this embodiment can execute the control method of the above embodiment. Its implementation principle and technical effect are similar, and will not be described again here.

[0143] The aforementioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0144] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in an electronic device or a host device.

[0145] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0146] In the description of this specification, references to "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0147] In the description of this invention, the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this invention and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. That is, they should not be construed as limiting this invention.

[0148] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature defined as "first" or "second" can explicitly include at least one of those features. In the description of this invention, "a plurality of" means at least two, such as two, three, etc.

[0149] In this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0150] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A self-cleaning control method of a cleaning system, characterized by, The cleaning system includes cleaning equipment and a base assembly; The cleaning device includes a suction motor, a roller brush, and a first scraper, the first scraper being located behind the roller brush and configured to clean the surface to be cleaned; The base assembly includes a base body and a first nozzle disposed on the base body. The base body has a cleaning groove for accommodating the roller brush and the first scraper. The spraying area of ​​the first nozzle is located at least between the rear side of the first scraper and the rear wall of the cleaning groove. The self-cleaning control method includes: In self-cleaning mode, while the roller brush is rotating and the suction motor is performing a suction action, the first nozzle is controlled to spray liquid, and the liquid sprayed by the first nozzle is used to clean the first scraper.

2. The self-cleaning control method according to claim 1, characterized in that, The self-cleaning control method includes: In response to a self-cleaning command, the roller brush is controlled to rotate and the suction motor is started. The first nozzle is activated when the roller brush rotates and the suction motor is started.

3. The self-cleaning control method according to claim 1 or 2, characterized in that, The self-cleaning mode includes a cleaning phase, and the self-cleaning control method includes: During the cleaning phase, the first nozzle is activated when the suction motor is not started for the last time.

4. The self-cleaning control method according to claim 3, characterized in that, The self-cleaning control method includes: controlling the first nozzle to spray continuously for a first preset time and then stopping.

5. The self-cleaning control method according to claim 1, characterized in that, The base assembly includes a second nozzle, the nozzle of which faces the cleaning tank, and the spray area of ​​the second nozzle is at least partially located on the front side of the roller brush. The self-cleaning control method includes: In the self-cleaning mode, while the roller brush is rotating forward and the suction motor is performing a suction action, the second nozzle is controlled to spray liquid, wherein the roller brush can roll the dirt backward when rotating forward.

6. The self-cleaning control method according to claim 5, characterized in that, The base body is provided with the second nozzle on both sides of the roller brush in the lateral direction; The cleaning device further includes a second scraper located in front of the roller brush; the second scraper is configured to switch between a cleaning position and a lifting position relative to the surface to be cleaned, and when the second scraper is in the cleaning position, the second scraper contacts the surface to be cleaned. When the second scraper is in the raised position, the second scraper is separated from the surface to be cleaned; The self-cleaning control method includes: In self-cleaning mode, during the rotation of the roller brush and the suction action of the suction motor, the second nozzle is controlled to spray liquid, and the spraying area of ​​the second nozzle is at least partially located between the second scraper and the roller brush.

7. The self-cleaning control method according to claim 6, characterized in that, The self-cleaning control method further includes: While the roller brush is rotating, the suction motor is performing a suction action, and the second scraper is in the cleaning position, the second nozzle is controlled to spray liquid.

8. The self-cleaning control method according to claim 5 or 6, characterized in that, The self-cleaning control method includes: controlling the second nozzle to spray for a second preset time and then stopping.

9. A self-cleaning control method for a cleaning system, characterized in that, The cleaning system includes cleaning equipment and a base assembly; The cleaning equipment includes a suction motor and a roller brush; The base assembly includes a base body and a second nozzle, the base body having a cleaning groove for accommodating the roller brush; The nozzle of the second nozzle faces the cleaning tank, and the spray area of ​​the second nozzle is at least partially located in front of the roller brush. The self-cleaning control method includes: In self-cleaning mode, while the roller brush is rotating forward and the suction motor is performing a suction action, the second nozzle is controlled to spray liquid, wherein the roller brush can roll the dirt backward when rotating forward.

10. The self-cleaning control method according to claim 9, characterized in that, The cleaning device further includes a second scraper located in front of the roller brush; the second scraper is configured to switch between a cleaning position and a lifting position relative to the surface to be cleaned, and when the second scraper is in the cleaning position, the second scraper contacts the surface to be cleaned. When the second scraper is in the raised position, the second scraper is separated from the surface to be cleaned; The second nozzle is located at the axial end of the roller brush; The self-cleaning control method includes: In self-cleaning mode, during the rotation of the roller brush and the suction action of the suction motor, the second nozzle is controlled to spray liquid, and the spraying area of ​​the second nozzle is at least partially located between the second scraper and the roller brush.

11. The self-cleaning control method according to claim 10, characterized in that, The self-cleaning control method includes controlling the second nozzle to spray liquid when the roller brush rotates, the suction motor performs a suction action, and the second scraper is in the cleaning position.

12. A control device for a cleaning system, characterized in that, The cleaning system includes cleaning equipment and a base assembly; The cleaning device includes a suction motor, a roller brush, and a first scraper, the first scraper being located behind the roller brush and configured to clean the surface to be cleaned; The base assembly includes a base body and a first nozzle disposed on the base body. The base body has a cleaning groove for accommodating the roller brush and the first scraper. The spraying area of ​​the first nozzle is at least partially located between the rear side of the first scraper and the rear wall of the cleaning groove. The control device includes: A first control module is configured to control the first nozzle to spray liquid during the self-cleaning mode, while the roller brush is rotating and the suction motor is performing a suction action, wherein the liquid sprayed by the first nozzle is used to clean the first scraper.

13. A self-cleaning control device for a cleaning system, characterized in that, The cleaning system includes cleaning equipment and a base assembly; The cleaning equipment includes a suction motor and a roller brush; The base assembly includes a base body and a second nozzle, the base body having a cleaning groove for accommodating the roller brush; The nozzle of the second nozzle faces the cleaning tank, and the spray area of ​​the second nozzle is at least partially located in front of the roller brush. The self-cleaning control device includes: The second control module is used to control the second nozzle to spray liquid in self-cleaning mode when the roller brush is rotating forward and the suction motor is performing a suction action, wherein the roller brush can roll the dirt backward when rotating forward.

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