Control method of surface cleaning device

Abstract

The invention relates to the field of household cleaning, and discloses a control method of a surface cleaning device, which comprises the following steps of: S1, controlling a power part to drive a cleaning part to move from a first working position to a second working position, controlling the cleaning part to rotate, and controlling a dirt suction fan to work at a first power threshold value W1; s2, when the cleaning part is located at the first working position, the control system works, the water supply assembly is controlled to supply water to the cleaning part at a second flow Q2, the cleaning part is controlled to rotate to wipe dirt on the to-be-cleaned face and bring the dirt to the dirt suction opening, the scraping assembly scrapes the dirt on the cleaning part, and the dirt suction fan is controlled to work at a second power threshold W2; wherein W1 is greater than or equal to W2. Compared with the prior art, the control method of the surface cleaning device provided by the embodiment of the invention has the advantages that the cleaning effect on a low space can be improved, and dirt accumulation is not easy to generate in the roller brush cavity, especially near the dirt suction port.

Description

Technical Field

[0001] This invention relates to the field of home cleaning, and more specifically, to a control method for a surface cleaning device. Background Technology

[0002] As people's living standards continue to improve, household surface cleaning devices such as vacuum cleaners and floor scrubbers are becoming increasingly popular. In low-ceilinged spaces in bedrooms and living rooms, such as under beds, sofas, and TV cabinets, large areas are often obscured by objects, leading to a buildup of dry debris like dust, hair, and other contaminants. Liquid waste rarely dries in these areas, making vacuum cleaners a more suitable option. However, vacuum cleaners are ineffective at removing dirt that has dried on the floor. In kitchens and dining rooms, liquid waste such as soy sauce and grease is more likely to accumulate, and it will dry if not cleaned up promptly. In living rooms or studies, spilled drinks or children's paint may also dry if not cleaned up immediately. While floor scrubbers typically have a water supply system, which supplies water to the cleaning components and controls their rotation to wipe away dirt, they are more suitable for handling dry waste like dust or plant soil. This wet soil or dust adheres to the walls of the brush chamber and cannot be collected in the waste bin, requiring the customer to clean the brush chamber. Therefore, whether used as a dry vacuum cleaner or a wet scrubber, the functions are relatively limited and incompatible. Furthermore, during cleaning, the scrubbing components of the floor scrubber can cause longer hairs, short animal hairs, and other lint to become entangled or accumulate on the cleaning components, requiring frequent manual removal by the user.

[0003] For household cleaning, having two cleaning machines takes up considerable space and adds to the financial burden on customers. To address this, the industry has developed multi-functional floor scrubbers with detachable power sources, combining vacuuming and scrubbing functions. However, these machines still share some structural components like the power source and require the replacement of brush heads and other accessories to match the functions, adding to the hassle of disassembly and assembly for customers. Furthermore, they still don't solve the problem of hair getting tangled in the cleaning components or dust and dirt accumulating in the roller brush chamber. While these surface cleaning devices reduce the burden of household cleaning for users, they also increase the burden of cleaning the brushes and cleaning components.

[0004] In addition, when cleaning low-ceilinged spaces, the angle between the scrubber and the surface to be cleaned needs to be reduced to ensure that the brush can reach a greater distance in the low-ceilinged space. In particularly deep low-ceilinged spaces, the scrubber may even need to lie flat on the surface to be cleaned. When the scrubber is in a flat cleaning position, in order to prevent wastewater from entering the machine through the waste bin and contaminating the suction fan, the power of the suction fan generally needs to be reduced. However, reducing the power of the suction fan is not conducive to cleaning dust under beds or soil under flower racks and other dry waste. The existing functions of the scrubber cannot meet the needs of handling different types of waste in different environments. Summary of the Invention

[0005] The purpose of this invention is to provide a control method for a surface cleaning device. In this control method, the cleaning component has two working positions, enabling the surface cleaning device to more intelligently handle the cleaning of different types of garbage in different environments, ensuring the safety and stability of the suction fan during operation, and achieving good cleaning results.

[0006] This invention provides a control method for a surface cleaning device. The surface cleaning device includes a suction system, a floor brush with a cleaning component, a body hinged to the floor brush, and a control system. The suction system includes a suction fan mounted on the body, a sludge container, a suction port on the floor brush, and a suction channel connecting the suction port and the sludge container. A water supply component and a scraping component are provided above the suction port. The cleaning component has a first working position that abuts against the scraping component and a second working position that has a gap with the scraping component. The control method of the surface cleaning device includes: a suction step S1: the control system operates, controlling a power component to move the cleaning component from the first working position to the second working position. In the first working position, the cleaning component is controlled to rotate, bringing dirt towards the suction port. The suction fan is controlled to operate at a first power threshold W1, sucking the dirt from the surface to be cleaned into the suction port and collecting it into the collection bucket through the suction pipe. In the second cleaning step, the cleaning component is positioned in the first working position, the control system operates, and the water supply component supplies water to the cleaning component at a second flow rate Q2. The cleaning component is controlled to rotate and wipe the dirt from the surface to be cleaned, bringing the dirt towards the suction port. The scraping component scrapes the dirt on the cleaning component. The suction fan is controlled to operate at a second power threshold W2, sucking the dirt into the suction port and collecting it into the collection bucket through the suction pipe. Wherein, W1 ≥ W2.

[0007] Compared with the prior art, in the control method of the surface cleaning device provided in this embodiment of the invention, the control power component switches between a first working position and a second working position. In the suction step S1, the power component is located in the first working position, and the suction fan is controlled to operate at a larger first power threshold W1. The larger operating power of the suction fan can generate more power and achieve a better suction effect. In the cleaning step S2, the power component is located in the second working position, and the suction fan is controlled to operate at a smaller second power threshold W2. Since the water supply component is controlled to supply water to the cleaning component at a second flow rate in the cleaning step S2, the smaller second power threshold W2 can reduce the risk of sewage mixed with dirt being sucked into the suction fan and causing damage to the suction fan, thus ensuring the safety and stability of the suction fan during operation. In addition, the differences in whether the water supply component supplies water and the power of the suction fan in the suction step S1 and the cleaning step S2 allow the suction step S1 and the cleaning step S2 to clean different types of dirt in different ways. Using different methods to clean different types of dirt can improve the targeting of dirt cleaning and thus improve the cleaning effect.

[0008] In an optional embodiment, during the suction step S1, the water supply component is controlled to not supply water, and the operating power of the suction motor is controlled to remain constant or increase. Increasing the operating power of the suction motor in step S1 further enhances the suction force generated by the suction fan. Greater suction force produces better suction and cleaning results. Simultaneously, since the water supply component does not supply water during step S1, even with increased operating power of the suction motor, no sewage will be sucked into the suction fan, thus ensuring the safety and stability of the suction fan during operation. In other words, while ensuring the safety and stability of the suction fan during operation, better suction and cleaning results are achieved.

[0009] In an optional embodiment, in the suction step S1, after the cleaning component and the suction fan have been operating for a first duration, the water supply component is controlled to supply water to the cleaning component at a first flow rate Q1, where Q1 ≤ Q2. After the cleaning component and the suction fan have been operating for a first duration in the suction step S1, the dirt on the surface to be cleaned that is easily sucked in by the suction fan is basically sucked into the dirt collection bucket. At this time, water is supplied to the cleaning component from the water supply port through the water supply component, which can wash off some of the dirt on the cleaning component. At the same time, it can also wet or mix the dirt that is difficult to be sucked in. After being wetted or mixed into clumps, the dirt is more easily sucked into the suction port under the suction action of the suction fan.

[0010] In an optional embodiment, during the suction step S1, after the water supply component is started, the control system reduces the operating power of the suction motor. Reducing the operating power of the suction motor after the water supply component is started avoids interference and damage to the suction fan caused by sewage being sucked into it, thus ensuring the safe and stable operation of the suction fan during operation.

[0011] In an optional embodiment, the machine body has three cleaning states relative to the surface to be cleaned: an upright state, an inclined cleaning state, and a flat cleaning state. The flat cleaning state is triggered when the angle α between the machine body and the surface to be cleaned is less than or equal to a trigger threshold, wherein the machine body switches to the flat cleaning state. The trigger threshold ranges from 20° to 30°. When the machine body is in the flat cleaning state, in the suction step S1, the control system controls the suction fan to operate at a third power threshold W3, where W3 < W1. Since both the suction fan and the sludge container are mounted on the machine body, the smaller angle α between the machine body and the surface to be cleaned when the machine body is in the flat cleaning state reduces the height of the suction fan and the sludge container. Controlling the suction fan to operate at a smaller third power threshold W3 in the suction step S1 reduces the risk of interference and damage to the suction fan due to sewage from the water supply being sucked into the suction fan, thus improving the safety and stability of the suction fan during operation.

[0012] In an optional embodiment, the machine body has three cleaning states relative to the surface to be cleaned: an upright state, an inclined cleaning state, and a flat cleaning state. The flat cleaning state is triggered when the angle α between the machine body and the surface to be cleaned is less than or equal to a trigger threshold, wherein the machine body switches to the flat cleaning state. The trigger threshold ranges from 20° to 30°. When the machine body is in the flat cleaning state, in cleaning step S2, the control system controls the suction fan to operate at a fourth power threshold W4, where W4 ≤ 0.6W2. Since both the suction fan and the waste collection tank are mounted on the machine body, the smaller angle α between the machine body and the surface to be cleaned when the machine body is in the flat cleaning state reduces the height of the suction fan and the waste collection tank. Controlling the suction fan to operate at a smaller fourth power threshold W4 in cleaning step S2 reduces the risk of interference and damage to the suction fan due to wastewater from the water supply being sucked into the suction fan, thus improving the safety and stability of the suction fan during operation.

[0013] In an optional embodiment, when the machine body is in a horizontal cleaning state, the control system controls the first flow rate Q1 and / or the second flow rate Q2 of the water supply component to decrease. Since both the suction fan and the waste collection tank are mounted on the machine body, when the machine body is in a horizontal cleaning state, the angle α between the machine body and the surface to be cleaned is smaller, which reduces the height of the suction fan and the waste collection tank. At this time, controlling the first flow rate Q1 and / or the second flow rate Q2 of the water supply component to decrease the amount of wastewater generated. As the water supply flow rate decreases, the wastewater in the waste collection tank rises more slowly, and the wastewater height in the waste collection tank decreases. Even if the wastewater entering the waste collection tank splashes, the splash distance is shorter, resulting in a larger safe distance between the wastewater in the waste collection tank and the airflow channel at the tank lid, reducing the risk of wastewater entering the airflow channel or even the suction fan.

[0014] In an optional embodiment, controlling the rotation of the cleaning component includes: controlling the cleaning component to rotate alternately along a first rotation direction and a second rotation direction; when the cleaning component rotates along the first rotation direction, it carries dirt towards the suction port; the rotational speed of the cleaning component when rotating along the first rotation direction is greater than the rotational speed of the cleaning component when rotating along the second rotation direction; and the rotational duration of the cleaning component when rotating along the first rotation direction is greater than the rotational duration of the cleaning component when rotating along the second rotation direction. Controlling the cleaning component to rotate alternately along the first rotation direction and the second rotation direction can avoid the problem of hair and filamentous materials becoming increasingly entangled due to prolonged rotation in a single direction. Furthermore, in cleaning step S2, since the cleaning component is in contact with the scraping assembly at the first working position, controlling the cleaning component to rotate alternately along the first rotation direction and the second rotation direction can also allow the scraping assembly to better oscillate dirt in different entanglement directions, improving the scraping effect of the scraping assembly on the dirt on the cleaning component.

[0015] In an optional embodiment, the surface cleaning device further includes a locking structure, and the control method of the surface cleaning device further includes: the control system controlling the locking structure to lock the cleaning component in the first working position or the second working position, controlling the power component to stop working, and controlling the cleaning component to rotate to throw dirt towards the suction port. Controlling the locking structure to lock the cleaning component in the first or second working position when it rotates reduces the possibility of sudden jumps during rotation and also reduces the possibility of imbalance at both ends of the cleaning component during rotation, which could increase the resistance of the motor driving the cleaning component and thus increase the current, leading to malfunction. Furthermore, when the cleaning component is locked in the first or second working position, the power component is in a stalled state; controlling the power component to stop working reduces the possibility of the power component malfunctioning or even burning out due to excessive current caused by prolonged stalling.

[0016] In an optional embodiment, the control method of the surface cleaning device further includes: when the machine body is in a flat working state, the control system controls the locking structure to apply pressure to the cleaning component toward the surface to be cleaned, so as to increase the friction between the cleaning component and the surface to be cleaned. Since the floor brush is lighter than the machine body, it is more likely to tilt up when the machine body is in a flat working state. Since the cleaning component is located at the front end of the floor brush, tilting the brush reduces the contact area between the cleaning component and the surface to be cleaned, or even causes it to detach, thereby reducing the friction between the cleaning component and the surface to be cleaned during rotation, and also reducing the wiping effect of the cleaning component. Controlling the locking structure to apply pressure to the cleaning component toward the surface to be cleaned increases the friction between the cleaning component and the surface to be cleaned, ensures the wiping effect of the cleaning component, and improves the cleaning effect of the cleaning component on the surface to be cleaned. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the surface cleaning device provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram showing the angle α between the body and the surface to be cleaned in the surface cleaning device provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram showing that the angle α between the body and the surface to be cleaned in the surface cleaning device provided in the embodiment of the present invention is zero;

[0021] Figure 4 This is a schematic diagram of the structure of a floor brush with a cleaning component located in the first position, as provided in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of a floor brush with the cleaning component located in the second position, as provided in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0027] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0028] like Figure 1 As shown, the surface cleaning device 100 provided in this embodiment of the invention may specifically include: a suction system, a body 101, a floor brush 102, a handle 103, a power source assembly 104, and a control system (not shown). The body 101 and the floor brush 102 are hinged together, and the power source assembly 104 may be detachably mounted on the body 101. Alternatively, it can be understood that the power source assembly 104 may also be disposed within the body 101 to form a novel surface cleaning device.

[0029] In embodiments of the present invention, the body 101 has an upright state, an inclined working state, and a lying cleaning state, such as... Figure 2 As shown, the working state of the body 101 can be switched according to the angle α between the body 101 and the surface to be cleaned 200. That is, when the angle α between the body 101 and the surface to be cleaned 200 corresponds to different angle thresholds, the angle sensing device is triggered, so that the body is in an upright state, an inclined working state, or a flat cleaning working state. In different embodiments of the present invention, the angle sensing device can be, for example, a gyroscope, an angle sensor, a micro switch set at multiple different angle positions, or other different structures.

[0030] Furthermore, in embodiments of the present invention, the device body 101 is determined to be in a flat cleaning state when the angle α between the device body 101 and the surface to be cleaned 200 is in the range of 0° to 30° or 0° to 20°. It is understood that the aforementioned 0° to 30° and 0° to 20° ranges are merely illustrative examples in some embodiments of the present invention. In other embodiments of the present invention, the device body 101 may be determined to be in a flat cleaning state when the angle α is in other angle ranges such as 0° to 15° or 0° to 10°. Specifically, this can be set by the user during use. For example, the user can set the angle range according to their height, living environment, etc., before using the surface cleaning device. For example, a larger angle range can be set for taller users, and a smaller angle range for shorter users. Alternatively, different angle ranges can be set for different users. For example, the user identifier and the corresponding angle range can be stored in the surface cleaning device, and the user can be identified in advance before using the surface cleaning device to determine the corresponding user identifier and angle range.

[0031] Furthermore, such as Figure 3 As shown, when the body 101 lies flat on the surface 200 to be cleaned, and the angle between the body and the surface is 0°, the thickness H of the body 101 is no greater than the maximum value of the height h of the floor brush 102. This ensures that the entire body 101 can follow the floor brush 102 into low-ceilinged spaces for cleaning, resulting in a larger cleaning area and a more thorough cleaning.

[0032] like Figure 4 As shown, the suction system specifically includes a suction fan mounted on the body 101, a sludge collection bucket, a suction port on the floor brush, and a suction channel connecting the suction port and the sludge collection bucket. A water supply component and a scraping component are located above the suction port. The floor brush 102 is equipped with a suction component, a scraping component 20, and a cleaning component 30. The scraping component 20 can specifically be a scraper 21 and comb teeth 22. In practical applications, the scraping component 20 can be configured as shown in this embodiment, including both the scraper 21 and comb teeth 22, or it can only include the scraper 21 or only the comb teeth 22. The front end of the floor brush 102 has a roller brush cavity 40, and the cleaning component 30 is disposed within the roller brush cavity 40. The suction component includes a suction fan (not shown in the figure, which can be integrated with a power battery). Figure 1The surface cleaning device includes a power source assembly 104, a suction pipe (not shown), and a sludge container 11. One end of the suction pipe is connected to the sludge container 11, and the other end is disposed on the cavity wall 41 of the roller brush cavity 40, forming a suction port 12. A scraping assembly 20 is also disposed on the cavity wall 41 of the roller brush cavity 40, and is positioned above the suction port 12. That is, the scraping assembly 20 and the suction port 12 are sequentially disposed on the cavity wall 41 of the roller brush cavity 40 from top to bottom. Furthermore, the surface cleaning device may also include a controller (not shown, but may specifically be a control chip disposed at any position on the surface cleaning device). The controller is communicatively connected to various components of the surface cleaning device, such as the suction assembly, the scraping assembly 20, the sensor, and the cleaning component 30. The controller can control the other components of the surface cleaning device to implement the control method of the surface cleaning device provided in this embodiment of the invention, thereby achieving the cleaning of dirt 300 on the surface to be cleaned 200.

[0033] Example 1

[0034] The control method of the surface cleaning device provided in Embodiment 1 of the present invention can be specifically as follows: During the cleaning process of the surface to be cleaned, the control system controls the surface cleaning device 100 to switch between executing the suction step S1 and the cleaning step S2. Specifically, the suction step S1 and the cleaning step S2 can be switched selectively for different types of debris. For example, when cleaning a clean, open floor such as a living room, or when cleaning soil, pet hair, or other dirt, the suction step S1 is executed immediately. After the suction step S1 is completed, or when cleaning sewage in a bathroom, kitchen, or other areas, the system switches to executing the cleaning step S2.

[0035] In Embodiment 1 of the present invention, the sludge suction step S1 may specifically include:

[0036] Step S101: Control the power component to move the cleaning component 30 from the first working position to the second working position.

[0037] Specifically, in the embodiments of the present invention, corresponding to the two different working states of the suction step S1 and the cleaning step S2, the cleaning component has a first working position and a second working position. That is, when the surface cleaning device 100 performs the suction step S1, the cleaning component is located in the second working position, and when the surface cleaning device 100 performs the cleaning step S2, the cleaning component is located in the first working position. Before the surface cleaning device 100 starts operating, the initial position of the cleaning component can be the first working position. Please refer to... Figure 4 and Figure 5 , Figure 4 The diagram shown is a structural schematic of the surface cleaning device when the cleaning component 30 is in the first working position. Figure 5 The diagram shows the structure of the surface cleaning device when the cleaning component 30 is in the second working position. Figure 4As shown, when the cleaning component 30 is in the first working position, the cleaning component 30 and the scraping assembly 20 are in contact with each other. Figure 5 As shown, when the cleaning component 30 is in the second working position, there is a gap between the cleaning component 30 and the scraping assembly 20.

[0038] In embodiments of the present invention, the surface cleaning device 100 may specifically include a power component communicatively connected to a controller. The controller controls the power component to output power, driving the cleaning component 30 to move back and forth between a first working position and a second working position. Specifically, the power component may form a power source assembly 104 together with a suction fan and a power battery, or the power component may be a structure such as a power motor mounted on the floor brush 102.

[0039] Step S102: Control the cleaning component 30 to rotate and bring the dirt to the suction port 12. Control the suction fan to work at the first power threshold W1 to suck the dirt on the surface to be cleaned into the suction port 12 and collect it into the collection bucket 11 through the suction pipe.

[0040] Specifically, the first power threshold W1 can be a power range between the minimum and maximum power that is set in advance according to the actual application scenario. Controlling the suction fan to work at the first power threshold W1 specifically means controlling the suction fan to operate at a power greater than or equal to the minimum power in the power range and less than or equal to the maximum power in the power range.

[0041] Specifically, the power component that drives the cleaning component 30 to rotate and the power component that drives the cleaning component 30 to move back and forth between the first working position and the second working position can be the same power device or different power components. For example, the power component can be a motor. By setting different transmission shafts, the same motor can achieve different effects of driving the cleaning component 30 to rotate and driving the cleaning component 30 to move back and forth between the first working position and the second working position. Alternatively, two different motors can be set to drive the cleaning component 30 to rotate and drive the cleaning component 30 to move back and forth between the first working position and the second working position, respectively.

[0042] Furthermore, controlling the rotation of the cleaning component 30 in this step can specifically be controlling the cleaning component 30 along a first rotation direction (e.g., Figure 4 The device rotates in direction A to bring the dirt on the surface to be cleaned toward the suction port, making it easier for the dirt to be sucked into the suction port and collected into the collection bucket through the suction pipe.

[0043] Correspondingly, in Embodiment 1 of the present invention, cleaning step S2 may specifically include:

[0044] Step S201: The cleaning component 30 is in the first working position, the control system is working, and the water supply component is controlling the water supply component to supply water to the cleaning component at a second flow rate Q2.

[0045] In this step, the second flow rate Q2 can specifically be 20 g / min. It is understood that the second flow rate Q2 of 20 g / min is only an example in this embodiment. In other embodiments of the present invention, the second flow rate Q2 can be other specific flow rates such as 25 g / min or 18 g / min, and the specific flow rate can be determined according to the preset water supply.

[0046] Step S202: Control the cleaning component 30 to rotate and wipe the dirt 300 on the surface to be cleaned 200 and bring the dirt 300 to the suction port 12. The scraping component scrapes the dirt on the cleaning component 30.

[0047] In this step, controlling the rotation of the cleaning component 30 can also be controlling the cleaning component 30 to rotate along the first rotation direction, or controlling the cleaning component 30 to rotate alternately along the first rotation direction and the second rotation direction, wherein the rotation speed of the cleaning component 30 when rotating along the first rotation direction is greater than the rotation speed of the cleaning component 30 when rotating along the second rotation direction, and the rotation duration of the cleaning component 30 when rotating along the first rotation direction is greater than the rotation duration of the cleaning component 30 when rotating along the second rotation direction.

[0048] In some embodiments of the present invention, the first rotation direction can be the forward rotation direction of the power device, such as a motor, that drives the cleaning component 30, and the second rotation direction can be the reverse rotation direction of the motor that drives the cleaning component 30. That is, when the motor rotates forward, it drives the cleaning component 30 to rotate along the first rotation direction, and when the motor rotates in reverse, it drives the cleaning component 30 to rotate along the second rotation direction. Based on this, the rotational speed of the cleaning component when rotating along the first rotation direction can be set to be greater than the rotational speed of the cleaning component when rotating along the second rotation direction, and the rotation duration of the cleaning component when rotating along the first rotation direction can be greater than the rotation duration of the cleaning component when rotating along the second rotation direction. That is, the rotational speed during forward rotation is greater than the rotational speed during reverse rotation, and the duration of forward rotation is greater than the duration of reverse rotation, thereby improving the working efficiency and service life of the motor.

[0049] The rotation duration of the cleaning component along the first rotation direction and the rotation duration along the second rotation direction can be preset durations. Specifically, these durations can be the time required for the cleaning component 30 to rotate several revolutions, or the time required for the cleaning component 30 to rotate at a certain angle. That is, the cleaning component 30 can rotate a certain number of revolutions along the first rotation direction, or it can rotate less than one revolution along the first rotation direction at a certain angle. Setting the rotation duration of the cleaning component 30 along the first rotation direction to a certain number of revolutions reduces the frequency of the cleaning component 30 switching rotation directions, thus extending the lifespan of the motor driving the cleaning component 30. Setting the rotation duration of the cleaning component 30 along the first rotation direction to a certain angle less than one revolution along the first rotation direction reduces the possibility of hair or other fibrous materials becoming entangled on the cleaning component 30. Similarly, the rotation duration of the cleaning component 30 along the second rotation direction can be a certain number of revolutions along the second rotation direction, or it can rotate less than one revolution along the second rotation direction at a certain angle.

[0050] Specifically, in the actual application of this invention, the actual rotation speed and actual rotation time of the cleaning component 30 can be flexibly set according to the different models of the surface cleaning device and the different specific application scenarios. For example, in a specific embodiment of this invention, in the suction step S1, the cleaning component 30 may rotate at a speed of 500 rpm along the first rotation direction. In the cleaning step S2, the cleaning component 30 may rotate at a speed of 550 rpm for 90 or 180 seconds along the first rotation direction, then switch to rotating at a speed of 200 rpm for 40 seconds along the second rotation direction, and then switch back to rotating at a speed of 550 rpm for 90 or 180 seconds along the first rotation direction, and so on, rotating 10-20 times, etc.

[0051] Furthermore, the rotational speed of the cleaning component 30 in this step (i.e., in cleaning step S2) when rotating in the first rotational direction is less than or equal to the rotational speed of the cleaning component in the aforementioned step (i.e., in the suction step S1) when rotating in the first rotational direction. Since more water is supplied in cleaning step S2, and the dirt is mostly large liquid dirt, a lower rotational speed can reduce the occurrence of liquid dirt splashing; while in suction step S1, less water is supplied or no water is supplied, and the dirt is mostly small dust or hair and other dry dirt, a faster rotational speed can better carry the dirt to the suction port 12, improving the suction effect.

[0052] It should be noted that in this step, since the cleaning component 30 is in the first working position and is in contact with the scraping assembly 20, while the cleaning component 30 rotates to wipe the dirt on the surface 200 to be cleaned and carries the dirt towards the suction port 12, the scraping assembly 20 can also scrape the dirt on the cleaning component 30. Furthermore, controlling the cleaning component 30 to rotate alternately in the first and second rotation directions allows the scraping assembly 20 to better oscillate dirt with different winding directions, improving the scraping effect of the scraping assembly 20 on the dirt on the cleaning component 30.

[0053] Step S203: Control the suction fan to work at the second power threshold W2, suck the dirt into the suction port 12, and collect it into the collection tank 11 through the suction pipe.

[0054] Specifically, the second power threshold W2 can be a power range between the minimum and maximum power preset according to the actual application scenario. Controlling the suction fan to operate at the second power threshold W2 specifically means controlling the suction fan to operate at a power greater than or equal to the minimum power and less than or equal to the maximum power within the power range. Specifically, in some embodiments of the present invention, the first power threshold is greater than or equal to the second power threshold, i.e., W1 ≥ W2, which specifically means that the minimum power within the power range corresponding to the first power threshold is greater than or equal to the maximum power within the power range corresponding to the second power threshold. Controlling the suction fan to operate at a higher power in the suction step S1 can improve the suction effect in the suction step S1. Specifically, the suction fan may operate at a power of 95-125 watts in the cleaning step S2 and at a power of 200 watts in the suction step S1, etc.

[0055] Compared with the prior art, in the control method of the surface cleaning device provided in Embodiment 1 of the present invention, the control power component switches between a first working position and a second working position. In the suction step S1, the power component is located in the first working position, and the suction fan is controlled to operate at a larger first power threshold W1. The larger operating power of the suction fan can generate more power and achieve a better suction effect. In the cleaning step S2, the power component is located in the second working position, and the suction fan is controlled to operate at a smaller second power threshold W2. Since the water supply component is controlled to supply water to the cleaning component at a second flow rate in the cleaning step S2, the smaller second power threshold W2 can reduce the risk of sewage mixed with dirt being sucked into the suction fan and causing damage to the suction fan, thus ensuring the safety and stability of the suction fan during operation. In addition, the differences in whether the water supply component supplies water and the power of the suction fan in the suction step S1 and the cleaning step S2 allow the suction step S1 and the cleaning step S2 to clean different types of dirt in different ways. Using different methods to clean different types of dirt can improve the targeting of dirt cleaning and thus improve the cleaning effect.

[0056] Example 2

[0057] In this embodiment, the aforementioned body 101 has an upright state, an inclined working state, and a lying cleaning state. In this embodiment, when the surface cleaning device enters a low space for cleaning, the angle α between the body and the surface to be cleaned meets a set angle threshold. For example, if the angle α is in the range of 0° to 30° or 0° to 20°, the body 101 is determined to be in a lying cleaning state, and the process switches to the suction step S1. In this embodiment, the water supply component is controlled not to supply water in the suction step S1, and the first power threshold W1 of the suction motor is kept unchanged or increased. After the dirt step S1 is completed, or when it is necessary to clean liquid stains such as spilled beverages on the ground, the process switches to the cleaning step S2.

[0058] In this embodiment, the specific steps of the suction step S1 and the cleaning step S2 can be referred to the specific description of the suction step S1 and the cleaning step S2 in the aforementioned embodiment one. The difference is that, in the suction step S1 of this embodiment, controlling the rotation of the cleaning component 30 can specifically be controlling the cleaning component 30 to alternately rotate along the first rotation direction (e.g., ...). Figure 4 (in direction A) and the second rotation direction (e.g.) Figure 5 The cleaning component 30 rotates in the direction B. In the cleaning step S2 of this embodiment, controlling the rotation of the cleaning component 30 can specifically mean controlling the cleaning component 30 to rotate along the first rotation direction.

[0059] Furthermore, in cleaning step S2 of this embodiment, after determining that the machine body 101 is in a flat cleaning state, the power of the suction fan can be reduced to a fourth power threshold W4 (W4≤0.6W2). Since both the suction fan and the sludge container are mounted on the machine body, when the machine body is in a flat cleaning state, the angle α between the machine body and the surface to be cleaned is small, which reduces the height of the suction fan and the sludge container. Controlling the suction fan to operate at a smaller fourth power threshold W4 in cleaning step S2 can reduce the risk of interference and damage to the suction fan's operation caused by sewage generated from the water supply being sucked into the suction fan, thereby improving the safety and stability of the suction fan during operation.

[0060] In this embodiment, W4≤0.6W2 is only a specific example of the fourth power threshold. In other embodiments of the present invention, it can also be other specific values ​​such as W4≤0.5W2, W4≤0.9W2, as long as W4<W2.

[0061] Compared with the prior art, in the control method of the surface cleaning device provided in Embodiment 2 of the present invention, increasing the first power threshold W1 of the suction motor in the suction step S1 can further enhance the suction force generated by the suction fan. The greater suction force can produce better suction and cleaning effect. At the same time, since the water supply component does not supply water in the suction step S1, even if the first power threshold W1 of the suction motor is increased, no sewage will be sucked into the suction fan, thereby ensuring the safety and stability of the suction fan during operation. That is, while ensuring the safety and stability of the suction fan during operation, better suction and cleaning effect is produced.

[0062] Example 3

[0063] In this embodiment, the aforementioned body 101 has an upright state, an inclined working state, and a flat cleaning state. In this embodiment, when the surface cleaning device enters a low space to clean, the angle α between the body and the surface to be cleaned meets a set angle threshold. For example, if the aforementioned angle α is in the range of 0° to 30° or 0° to 20°, the body 101 is determined to be in a flat cleaning state, and the process is switched to execute the vacuuming step S1.

[0064] Unlike the second embodiment where no water supply is provided in the suction step S1, in the third embodiment, after the cleaning component and the suction fan have been working for a first period of time, the water supply component is controlled to supply water to the cleaning component at a first flow rate Q1 (Q1≤Q2).

[0065] Specifically, both the aforementioned first flow rate and the second flow rate in this step can be preset fixed flow rates. In practical applications, the first flow rate can be less than or equal to the second flow rate, i.e., Q1 ≤ Q2, for example, Q1 is 10 g / min, Q2 is 20 g / min, etc.

[0066] Furthermore, in some embodiments of the present invention, the first flow rate and the second flow rate can also be actively controlled by the user during use. For example, a water supply button can be provided on the surface cleaning device, and the user can control the flow rate of water supplied by the water supply component to the cleaning element 30 by pressing the water supply button.

[0067] Furthermore, in this embodiment, when the machine body is in a lying-down cleaning state, the control system controls the water supply component to reduce the first flow rate Q1 and / or the second flow rate Q2. That is, the first flow rate Q1 and / or the second flow rate Q2 also tend to decrease as the included angle α decreases. As the included angle α decreases, the first flow rate Q1 and / or the second flow rate Q2 also decreases accordingly. As the included angle α decreases, the height of the sludge tank 11 also decreases. During the sludge suction process, the travel distance of the sludge in the vertical direction is reduced. Under the same suction force of the sludge suction fan, the overall travel distance of the sludge increases, and the sewage is more likely to follow the airflow through the airflow channel on the sludge tank and enter the sludge suction fan. By controlling the first flow rate Q1 and / or the second flow rate Q2 to decrease as the included angle α decreases, the amount of sewage produced also decreases as the water supply decreases, which slows down the rise of the sewage in the sludge tank 11. The height of the sewage in the sludge tank 11 is reduced, and even if the sewage entering the sludge tank 11 splashes, the splashing distance is shorter. This makes the safe distance between the sewage in the sludge tank 11 and the airflow channel at the lid larger, reducing the risk of sewage entering the airflow channel or even the sludge suction fan.

[0068] In step S1, after the cleaning unit and the suction fan have been working for the first time, the dirt on the surface to be cleaned that is easily sucked in by the suction fan is basically sucked into the collection bucket. At this time, water is supplied to the cleaning unit through the water supply port through the water supply component, which can wash off some of the dirt on the cleaning unit. At the same time, it can also moisten dirt that is difficult to be sucked in, such as dried cola or soy sauce. The moistened dirt is more easily sucked into the suction port by the suction action of the suction fan.

[0069] Furthermore, after water is supplied in the suction step S1 of this embodiment, when the machine body is in a flat cleaning state, the control system controls the suction fan to operate at a third power threshold W3, where W3 < W1. Since both the suction fan and the sludge container are mounted on the machine body, when the machine body is in a flat cleaning state, the angle α between the machine body and the surface to be cleaned is small, which reduces the height of the suction fan and the sludge container. Controlling the suction fan to operate at a smaller third power threshold W3 in the suction step S1 can reduce the risk of interference and damage to the suction fan's operation caused by sewage generated from the water supply being sucked into the suction fan, thus improving the safety and stability of the suction fan during operation.

[0070] The following will illustrate this embodiment with a specific application scenario, such as cleaning a kitchen. When the angle α between the machine body and the surface to be cleaned is less than 90°, the microswitch is triggered, and the suction step S1 is immediately executed. In the suction step S1, the cleaning component can rotate alternately in the first and second rotation directions as described above. In the early stage of the suction step S1, the water supply component is controlled not to supply water, and the suction fan operates at a first power threshold W1 (for example, the first power threshold W1 can be the maximum power of the fan, such as 250 watts). First, dry food particles such as millet are sucked away. After the suction fan operates at the first power threshold W1 to process the millet, etc. After removing dry food particles, the water supply component is controlled to supply water at a first flow rate Q1 (e.g., 10g / min), while the power of the suction fan is reduced, and the suction fan is controlled to operate at a third power threshold W3 (e.g., 150 watts) to handle other dried, large food waste particles on the kitchen floor. After the suction step S1 is completed, the cleaning step S2 is executed. In the cleaning step S2, the cleaning component moves from the second working position to the first working position under the action of the power component, the water supply component is controlled to supply water at a second flow rate Q2 (e.g., 20g / min), and the suction fan operates at a fourth power threshold W4 (e.g., 50 watts). Alternatively, if there is scattered dirt such as millet under the cabinet, the suction step S1 can still be performed when the machine body is lowered and the angle α between the machine body and the ground is reduced, and the machine body changes from the tilted working state to the flat cleaning state. The water supply component is controlled not to supply water, and the suction fan initially runs at the first power threshold W1 to suck up dry food particles such as millet. After the suction fan has processed the dry food particles such as millet at the first power threshold W1, the water supply component is controlled to supply water at the first flow rate Q1 (the first flow rate Q1 is also reduced after the machine body is lowered, for example, it can be 7.5g / min). At the same time, the power of the suction fan is reduced, and the suction fan is controlled to run at the third power threshold W3 (the third power threshold W3 is also reduced after the machine body is lowered, for example, it can be 75 watts).

[0071] Compared with the prior art, in the control method of the surface cleaning device provided in Embodiment 3 of the present invention, since both the suction fan and the sludge collection bucket are mounted on the machine body, when the machine body is in a flat cleaning state, the angle α between the machine body and the surface to be cleaned is small, which reduces the height of the suction fan and the sludge collection bucket. In the suction step S1, controlling the suction fan to work at a smaller third power threshold W3 can reduce the risk of interference and damage to the operation of the suction fan caused by the sewage generated by the water supply being sucked into the suction fan, thereby improving the safety and stability of the suction fan during operation.

[0072] Example 4

[0073] In Embodiment 4 of the present invention, the surface cleaning device further includes a locking structure (which may be specifically disposed within the floor brush 102, not shown in the figure). Corresponding to the surface cleaning device provided in this embodiment, the control method of the surface cleaning device provided in Embodiment 5 of the present invention may specifically include:

[0074] Step S301: Control the locking structure to lock the cleaning component 30 in the first working position or the second working position.

[0075] Specifically, during the vacuuming step S1, the cleaning component 30 moves to the second working position under the drive of the power component. After moving to the second working position, the locking structure locks the cleaning component 30 in the second working position, and then the cleaning component 30 can complete the subsequent vacuuming step S1. During the cleaning step S2, the cleaning component 30 moves to the first working position under the drive of the power component. After moving to the first working position, the locking structure locks the cleaning component 30 in the first working position, and then the cleaning component 30 can complete the subsequent cleaning step S2. During the switching process between the vacuuming step S1 and the cleaning step S2, the locking structure unlocks the cleaning component 30, and the cleaning component 30 can move back and forth between the first working position and the second working position under the drive of the power component.

[0076] Step S302: Control the power component to stop working.

[0077] Specifically, while the locking structure locks the cleaning component 30 in the first working position or the second working position, the power component that drives the cleaning component 30 to reciprocate between the first working position and the second working position is stalled, and at this time the control power component stops working.

[0078] Compared with the prior art, in the control method of the surface cleaning device provided in Embodiment 4 of the present invention, during the process of the cleaning component 30 performing the suction step S1 and the cleaning step S2, the locking structure controls the cleaning component 30 to lock in the first working position or the second working position when the cleaning component 30 rotates, reducing the possibility of sudden jumping during the rotation of the cleaning component 30. It can also reduce the possibility of imbalance at both ends of the cleaning component during rotation, which would increase the resistance of the motor driving the cleaning component to rotate and thus increase the current and cause failure. In addition, when the cleaning component 30 is locked in the first working position or the second working position, the power component is in a stalled state. At this time, the power component is controlled to stop working, reducing the possibility of the power component malfunctioning or even burning out due to excessive current caused by long-term stalling.

[0079] Example 5

[0080] The control method of the surface cleaning device provided in Embodiment 5 of the present invention may specifically include: when the included angle α is less than the second angle threshold, controlling the locking structure to apply pressure toward the surface to be cleaned to increase the friction between the cleaning component and the surface to be cleaned.

[0081] Because the floor brush 102 is lighter than the body 101, it is more likely to lift up when the included angle α is small. Since the cleaning component 30 is located at the front end of the floor brush 102, the lifting of the floor brush 102 makes it easier for the cleaning component 30 to reduce the contact area with the surface to be cleaned 200 or even detach it. This reduces the friction of the cleaning component 30 on the surface to be cleaned 200 during rotation and also reduces the wiping effect of the cleaning component 30. In this embodiment, the locking structure is controlled to apply pressure to the cleaning component 30 toward the surface to be cleaned 200 to increase the friction between the cleaning component 30 and the surface to be cleaned 200, ensuring the wiping effect of the cleaning component 30 and improving the cleaning effect of the cleaning component 30 on the surface to be cleaned.

[0082] In embodiments of the present invention, the surface cleaning device may further include a dirt detection device, which can be used to detect the type of dirt that currently needs to be cleaned, that is, the dirt detection device can detect dirt, classify the detected dirt, and determine the type of dirt.

[0083] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A control method for a surface cleaning device, the surface cleaning device comprising a suction system, a floor brush with cleaning components, a body hinged to the floor brush, and a control system, the suction system comprising a suction fan mounted on the body, a sludge collection tank, a suction port mounted on the floor brush, and a suction channel connecting the suction port and the sludge collection tank, a water supply component and a scraping component disposed above the suction port, the cleaning components having a first working position abutting against the scraping component and a second working position having a gap with the scraping component, characterized in that, The control method for the surface cleaning device includes: Vacuuming step S1: The control system operates by controlling the power component to move the cleaning component from the first working position to the second working position, controlling the cleaning component to rotate to carry dirt towards the suction port, and controlling the suction fan to operate at the first power threshold W1 to suck the dirt on the surface to be cleaned into the suction port and collect it into the collection bucket through the suction pipe. Cleaning step S2: The cleaning component is located in the first working position. The control system operates by controlling the water supply component to supply water to the cleaning component at a second flow rate Q2, controlling the cleaning component to rotate and wipe the dirt on the surface to be cleaned and carry the dirt to the suction port, the scraping component to scrape the dirt on the cleaning component, and controlling the suction fan to operate at a second power threshold W2 to suck the dirt into the suction port and collect it into the sludge bucket through the suction pipe. Where W1≥W2.

2. The control method of the surface cleaning device according to claim 1, characterized in that, In the suction step S1, the water supply component is controlled to not supply water, and the operating power of the suction motor is controlled to remain unchanged or increase.

3. The control method of the surface cleaning device according to claim 1, characterized in that, In the suction step S1, after the cleaning component and the suction fan have been working for a first period of time, the water supply component is controlled to supply water to the cleaning component at a first flow rate Q1, wherein Q1≤Q2.

4. The control method of the surface cleaning device according to claim 3, characterized in that, In the suction step S1, after the water supply component is started, the control system controls the suction motor to reduce its operating power.

5. The control method of the surface cleaning device according to claim 3, characterized in that, The machine body has three cleaning states relative to the surface to be cleaned: upright, tilted, and flat. The flat cleaning state is triggered when the angle α between the machine body and the surface to be cleaned is less than or equal to a trigger threshold. The trigger threshold ranges from 20° to 30°. When the machine body is in the flat cleaning state, in the vacuuming step S1, the control system controls the vacuuming fan to operate at a third power threshold W3, where W3 < W1.

6. The control method of the surface cleaning device according to claim 5, characterized in that, The machine body has three cleaning states relative to the surface to be cleaned: upright, tilted, and flat. The flat cleaning state is triggered when the angle α between the machine body and the surface to be cleaned is less than or equal to a trigger threshold. The trigger threshold ranges from 20° to 30°. When the machine body is in the flat cleaning state, in cleaning step S2, the control system controls the suction fan to operate at a fourth power threshold W4, where W4 ≤ 0.6W2.

7. The control method of the surface cleaning device according to claim 6, characterized in that, When the machine body is in a flat cleaning state, the control system controls the first flow rate Q1 and / or the second flow rate Q2 of the water supply component to decrease.

8. The control method of the surface cleaning device according to claim 1, characterized in that, The control of the rotation of the cleaning component includes: The cleaning component is controlled to rotate alternately along a first rotation direction and a second rotation direction. When the cleaning component rotates along the first rotation direction, it carries dirt towards the suction port. The rotational speed of the cleaning component when rotating along the first rotation direction is greater than the rotational speed of the cleaning component when rotating along the second rotation direction. The rotational duration of the cleaning component when rotating along the first rotation direction is greater than the rotational duration of the cleaning component when rotating along the second rotation direction.

9. The control method of the surface cleaning device according to claim 1, characterized in that, The surface cleaning device further includes a locking structure, and the control method for the surface cleaning device further includes: The control system controls the locking structure to lock the cleaning component in the first working position or the second working position, controls the power component to stop working, and controls the cleaning component to rotate to throw dirt towards the suction port.

10. The control method of the surface cleaning device according to claim 9, characterized in that, The control method for the surface cleaning device further includes: When the machine body is in a flat working state, the control system controls the locking structure to apply pressure to the cleaning component toward the surface to be cleaned, so as to increase the friction between the cleaning component and the surface to be cleaned.

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