Floor brush and cleaning equipment

Abstract

The invention discloses a floor brush and cleaning equipment. The floor brush comprises a floor brush body, an airflow channel, an electrode and a high-voltage generator. The floor brush body is provided with a floor brush suction port used for being close to a to-be-cleaned surface, the airflow channel is formed in the floor brush body, and the airflow channel is provided with an air inlet used for receiving airflow from the floor brush suction port and an air outlet used for exhausting the airflow; the electrode is arranged at the air inlet or close to the air inlet, and the electrode is a surrounding type electrode surrounding the air inlet; and the high-voltage generator is arranged in the floor brush body, is electrically connected with the electrode and is used for enabling the electrode to generate an electrostatic field. Based on the electrostatic field adsorption principle, the carpet fine dust capturing efficiency is improved, the interference magnitude of the rolling brush beating the carpet is reduced, and therefore the running load of the rolling brush and the energy consumption of the whole machine are reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of cleaning equipment, and particularly relates to a floor brush and a cleaning equipment. BACKGROUND

[0002] The hand-held vacuum cleaner on the market generally adopts a structure design of a motor driving a roller brush, and dust and debris deeply buried are lifted and sucked into a dust channel through high-speed rotation of the roller brush to beat the ground or carpet fibers. SUMMARY

[0003] The above existing design performs well on hard floors, but still has significant defects in carpet environments: the roller brush has weak processing capacity for particles with a particle size less than 100 microns, and these particles are often attached to the deep part of the carpet fibers, and it is difficult to effectively peel off them by mechanical force of the bristles. At the same time, in order to achieve sufficient beating force, the roller brush system needs to rely on a high-power motor, which will increase the weight and energy consumption of the whole machine, and even may trigger the protection mechanism due to excessive load, resulting in a decrease in rotation speed or even stall, which not only causes interruption of cleaning, but also may shorten the service life of the motor.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a floor brush and a cleaning equipment.

[0005] The purpose of the present application is to provide a floor brush and a cleaning equipment which can improve the efficiency of capturing fine dust on carpets and reduce the interference of the roller brush beating the carpet, thereby reducing the operating load of the roller brush and the energy consumption of the whole machine.

[0006] In order to achieve the above purpose, the technical scheme provided by an embodiment of the present application is as follows:

[0007] A floor brush, comprising:

[0008] a floor brush body having a floor brush suction port for being close to a surface to be cleaned;

[0009] an airflow channel formed in the floor brush body, the airflow channel having an air inlet for receiving airflow from the floor brush suction port and an air outlet for discharging the airflow;

[0010] an electrode disposed at or close to the air inlet, the electrode being configured as a surrounding electrode surrounding the air inlet;

[0011] a high-voltage generator disposed in the floor brush body, the high-voltage generator being electrically connected with the electrode for causing the electrode to generate an electrostatic field.

[0012] The surrounding electrode forms an electrostatic field surrounding the air inlet, ensuring that dust can be effectively adsorbed regardless of the angle of entry.

[0013] In one or more embodiments of the present application, the surrounding electrode is a ring-shaped electrode piece surrounding the air inlet. The ring-shaped electrode piece is simple and reliable in structure, can generate a uniform and surrounding electrostatic field, and is convenient to process and install.

[0014] In one or more embodiments of the present application, the surrounding electrode comprises a plurality of electrode units arranged circumferentially along the inner wall of the airflow channel. The plurality of electrode units form a surrounding electric field in a discrete manner, which reduces the material cost while ensuring the effect.

[0015] By adsorbing residual dust in the airflow through the electrostatic field, the capture efficiency of fine dust is effectively improved, and deep cleaning is achieved.

[0016] In one or more embodiments of the present application, the electrode is attached or embedded on the inner wall of the airflow channel. The structural stability and assembly convenience between the electrode and the airflow channel are ensured.

[0017] In one or more embodiments of the present application, the inner wall of the electrode is arranged flush with the inner wall of the airflow channel. The flush arrangement of the electrode and the inner wall of the air duct avoids the generation of airflow steps, maintains smooth airflow, and reduces turbulence and noise.

[0018] In one or more embodiments of the present application, the electrode is arranged above the brush suction port. The design of the electrode higher than the brush suction port ensures that the electrode does not contact the ground during work, preventing the risk of electric shock and electrode wear.

[0019] In one or more embodiments of the present application, the thickness of the electrode is arranged to be equal or gradually increased from the air inlet to the air outlet. The equal thickness structure is simple and easy to manufacture, and the gradually thickening design enhances the structural rigidity.

[0020] In one or more embodiments of the present application, the electrode comprises a windward portion, a leeward portion, and a connecting portion connecting the windward portion and the leeward portion, both the windward portion and the leeward portion adopt a circular arc transition, and the thickness of the connecting portion gradually increases from the windward portion to the leeward portion. The streamlined electrode design effectively guides the airflow and reduces vortex.

[0021] In one or more embodiments of the present application, the radius of the circular arc of the windward portion is smaller than the radius of the circular arc of the leeward portion. The small circular arc of the windward portion concentrates the electric field to improve the dust removal efficiency, and the large circular arc of the leeward portion suppresses discharge and reduces ozone generation.

[0022] In one or more embodiments of the present application, the input end of the high-voltage generator is used to connect the low-voltage power supply of the cleaning device host, and the high-voltage generator is configured to output direct-current high voltage or high-frequency alternating-current high voltage. The high-voltage generator is directly powered by the host, the system has high integration, avoids high-voltage lines penetrating through the body, and improves safety.

[0023] In one or more embodiments of the present invention, the output voltage of the high-voltage generator is between 10kV and 20kV. This voltage range generates a strong electrostatic field while remaining within a safe threshold, thus balancing efficiency and safety.

[0024] Another specific embodiment of the present invention provides the following technical solution:

[0025] A cleaning device includes the aforementioned floor brush. This cleaning device efficiently treats fine dust using an electrostatic field, allowing the roller brush to focus on agitating large particles, thereby enabling operation with significantly reduced rotational speed and interference fit.

[0026] Compared with existing technologies, the floor brush and cleaning device of the present invention, by placing electrodes at or near the air inlet of the airflow channel, generates an electrostatic field that allows fine dust (e.g., particle size 10μm~200μm) to be adsorbed onto the electrode surface, achieving efficient interception of residual dust and preventing it from re-settling onto the cleaning surface, thus effectively improving the cleaning efficiency for fine dust. Furthermore, by efficiently treating fine dust through the electrostatic field, the roller brush can focus on agitating large particles, thereby effectively reducing the roller brush's rotational speed and interference fit, reducing the operating load of the roller brush motor and the overall energy consumption. This effectively avoids stalling and stopping problems caused by excessive load in high-resistance carpet environments, improving the reliability and continuity of the floor brush's operation; simultaneously, by reducing the burden of high-load motor operation, the overall service life of the machine is effectively extended. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of a floor brush according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 Enlarged view of the local structure at point A;

[0030] Figure 3 This is a partial structural diagram of the floor brush body in one embodiment of the present invention;

[0031] Figure 4 This is a cross-sectional view of the airflow channel and electrodes in one embodiment of the present invention;

[0032] Figure 5 This is a cross-sectional view of the airflow channel and electrodes in another embodiment of the present invention;

[0033] Figure 6 For Figure 5 A local structure at B is enlarged.

[0034] Explanation of main reference signs:

[0035] 1 brush body

[0036] 11 brush suction port

[0037] 12 installation cavity

[0038] 2 air flow channel

[0039] 21 air inlet

[0040] 22 air outlet

[0041] 3 electrode

[0042] 31 windward part

[0043] 32 leeward part

[0044] 33 connecting part

[0045] 4 rolling brush DETAILED DESCRIPTION

[0046] In order to make the person skilled in the art better understand the technical solutions in the present disclosure, the technical solutions in the present disclosure will be described clearly and completely in the present disclosure by combining the drawings in the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present disclosure.

[0047] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0048] It should be noted that: the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0049] The technical solutions in the present disclosure will be described below by combining the drawings.

[0050] Embodiment one:

[0051] Referring to Figure 1 , an embodiment of the present disclosure provides a brush, and the specific structure can refer to Figures 1-3The floor brush includes a brush body 1. The brush body 1 is typically made of engineering plastic and forms the main support structure of the brush. The bottom of the brush body 1 has a brush suction port 11 for approaching the surface to be cleaned. This suction port 11 serves as the main entry point for dirt in the cleaning device and is connected to the air inlet 21 of the airflow channel 2. Inside the brush body 1, an airflow channel 2 is formed. This airflow channel 2 has an air inlet 21 for receiving external airflow from the brush suction port 11 and an air outlet 22 for discharging the airflow. When the cleaning device is operating, the airflow carrying dust and debris enters through the air inlet 21, flows through the airflow channel 2, and is finally discharged from the air outlet 22 into the subsequent ducts of the cleaning device.

[0052] An electrode 3 is provided at the air inlet 21 of the airflow channel 2. This electrode 3 is configured as an enclosed electrode surrounding the air inlet 21. In one embodiment of this invention, referring to… Figure 3 As shown, the electrode 3 is disposed on the inner wall of the airflow channel 2 and maintains a small distance from the end face of the air inlet 21 (this small distance can be 1mm to 5mm, of course other ranges are also acceptable, as long as it can be disposed close to the air inlet 21). However, the electrostatic field generated by it can still effectively cover and shroud the entire air inlet 21 area, thereby exerting a force on the micro-dust that is about to enter.

[0053] A high-voltage generator (not shown) is installed in the internal cavity of the floor brush body 1. The high-voltage generator is electrically connected to the electrode 3 via an insulated wire. When the cleaning equipment is started, the high-voltage generator starts to work and applies a high voltage to the electrode 3, thereby generating a strong electrostatic field at the air inlet 21 of the airflow channel 2.

[0054] Working principle:

[0055] Due to the continuous interaction between the carpet's fibers and human activities (such as walking and dragging furniture), localized areas of the carpet and the dust particles in contact with it carry opposite electrostatic charges, thus attracting micro-dust into the fiber gaps of the carpet. When the cleaning equipment is operating, the airflow carrying some dust enters through the air inlet 21. The instant the dust enters the airflow channel 2, the electrostatic field generated by the electrode 3 causes the dust particles to be attracted to the electrode surface. Most of the larger debris is directly sucked into the depths of the channel by the airflow; however, some micro-dust (e.g., particles with a diameter of 10μm~200μm), due to their light weight and low inertia, are difficult to be effectively captured by the airflow and may detach from the main flow or bounce off the channel wall.

[0056] By setting the electrode 3 at the air inlet 21 of the airflow channel 2, the electrostatic field generated by the electrode 3 can directly act on the dust about to be sucked in, especially the fine dust (e.g., particle size 10 μm~200 μm) that is difficult to be effectively captured by the airflow due to its light mass and small inertia. The electrostatic field force causes the dust particles to be adsorbed to the surface of the electrode 3, achieving high-efficiency interception of residual fine dust and avoiding its re-deposition on the cleaned surface, effectively improving the cleaning efficiency for fine dust. Tests show that the cleaning equipment using the new brush can improve the capture efficiency of dust in this particle size range by 1~2 times. In addition, by efficiently processing fine dust through the electrostatic field, the roller brush 4 can focus on agitating large-particle debris, thereby effectively reducing the rotation speed and beating allowance of the roller brush 4 to reduce the operating load of the roller brush 4 motor and the overall energy consumption, effectively avoiding the problem of stall and stop caused by excessive load in a high-resistance carpet environment, improving the working reliability and continuity of the brush. At the same time, by reducing the burden of high-load operation of the motor, the service life of the overall machine is effectively prolonged.

[0057] By configuring the electrode 3 as a surrounding electrode surrounding the air inlet 21, the electrostatic field generated by the electrode 3 can form an electrostatic field barrier surrounding the air inlet 21 without dead angles. This structural design can make dust particles be effectively subjected to electrostatic field force regardless of the angle or position at which they approach or enter the air inlet 21, thereby being reliably adsorbed and captured. Compared with the electrode 3 arranged on only one side, this surrounding design reduces the blind area of electrostatic capture, effectively improving the capture efficiency and reliability for fine dust.

[0058] Of course, the present application is not limited thereto. In other embodiments, the electrode 3 can also be partially covered on the inner wall of the airflow channel 2 and partially covered on the inner wall of the brush body 1; or, the electrode 3 is entirely arranged on the inner wall of the brush body 1 and is arranged adjacent to the air inlet 21. The above-mentioned solutions can all exert force on the fine dust about to enter the airflow channel 2, and thus are within the protection scope of the present application.

[0059] In one embodiment of the present embodiment, the electrode 3 can be directly fixed and attached to the inner wall surface of the air inlet 21 of the airflow channel 2 by coating conductive adhesive, welding or mechanical pressing on the outer wall of the electrode 3. At this time, the inner wall of the electrode 3 and the inner wall of the airflow channel 2 can form a small step or substantially keep flush.

[0060] In another embodiment of the present embodiment, the inner wall at the air inlet 21 of the airflow channel 2 has a mounting groove. The electrode 3 is a prefabricated structure and can be tightly pressed or buckled in the mounting groove. Through this embedding mode, the inner wall of the electrode 3 can form a surface substantially keeping flush with the inner wall of the airflow channel 2.

[0061] No matter whether it is attached or embedded, the electrode 3 can be reliably and stably integrated on the inner wall of the airflow passage 2, ensuring its structural stability under high-speed airflow. At the same time, this integration enables the electrostatic field to be generated directly on the boundary of the airflow path, forming an effective capture area for the dust about to enter the passage, and facilitating the smoothness of the airflow, reducing turbulence.

[0062] Preferably, when the electrode 3 is fixedly installed with the airflow passage 2 by embedding, referring to Figure 4 , the inner wall of the electrode 3 can be arranged substantially flush with the inner wall at the air inlet 21 of the airflow passage 2, thereby avoiding the formation of steps or protrusions in the airflow passage 2, ensuring that the airflow can pass smoothly, minimizing turbulence and the resulting aerodynamic noise, while avoiding dust secondary flying caused by airflow disturbance.

[0063] Specifically, referring to Figure 3 , the electrode 3 can be a ring-shaped electrode sheet that surrounds the air inlet 21 of the airflow passage 2 and is fixedly installed on the inner wall of the airflow passage 2. This ring-shaped arrangement ensures that the electrode 3 can surround the entire air inlet 21 from all directions.

[0064] In addition, it should be noted that the surrounding electrode 3 is not limited to a continuous and complete ring structure. In another embodiment, the surrounding electrode 3 can also be designed as a square ring or a triangular ring, or other polygonal ring structures, as long as it surrounds the air inlet 21. In yet another embodiment, the surrounding electrode 3 can include a plurality of independent electrode units arranged circumferentially at intervals along the inner wall of the air inlet 21. When these electrode units are energized, they can collectively form an electrostatic field surrounding the air inlet 21. This intermittent layout design also achieves the effect of the electrostatic field surrounding the air inlet 21 and falls within the scope of the present application.

[0065] In a specific implementation of the present embodiment, referring to Figure 1 , Figure 2 , the electrode 3 in the present embodiment is arranged at the air inlet 21 of the airflow passage 2, and the lowest point of the electrode 3 is located above the plane of the brush suction port 11. The height difference between the electrode 3 and the brush suction port 11 can ensure that when the brush is normally cleaning, even if the brush suction port 11 is completely attached to the ground, the electrode 3 can always maintain a physical gap with the surface to be cleaned, thereby being in a non-contact state, avoiding direct contact between the high-potential electrode 3 and the ground or other surfaces to be cleaned during cleaning. This non-contact design not only eliminates the risk of electric shock to the user due to accidental touch, greatly improving the electrical safety of the product, but also prevents excessive wear, deformation or damage caused by direct friction between the electrode 3 and the ground, ensuring the long-term working stability and service life of the brush.

[0066] It should be noted that, in this embodiment, the floor brush body 1 has an interconnected mounting cavity 12 and an airflow channel 2. The mounting cavity 12 is located above the floor brush suction port 11 and is used to accommodate the roller brush 4 assembly and guide the airflow collected by the floor brush suction port 11 to the air inlet 21 of the airflow channel 2. The electrode 3 is directly disposed at the air inlet 21 of the airflow channel 2. By placing the air inlet 21 of the airflow channel 2 behind or above the mounting cavity 12, the air inlet 21 of the airflow channel 2 is physically raised relative to the plane where the floor brush suction port 11 is located, thereby naturally achieving an effective distance between the electrode 3 and the floor brush suction port 11 and the surface to be cleaned.

[0067] Of course, this application is not limited to this. In other embodiments, the electrode 3 is not fixed to the inner wall of the airflow channel 2, but can be suspended inside the mounting cavity 12 and located near the air inlet 21 by an insulating bracket fixed to the inner wall of the airflow channel 2. As long as there is a gap between the installation position of the electrode 3 and the floor brush suction port 11, and it is ensured that it is isolated from the surface to be cleaned during operation, it falls within the protection scope of this solution.

[0068] In one specific implementation of this embodiment, refer to Figure 4 As shown, the thickness of the electrode 3 can be kept uniform from the windward side near the air inlet 21 to the leeward side near the air outlet 22, i.e., it adopts a uniform thickness setting. This electrode 3 has a simple structure, low manufacturing cost and is easy to assemble.

[0069] In another specific implementation of this embodiment, refer to Figure 5 As shown, the thickness of electrode 3 can also be designed to gradually increase from the air inlet 21 to the air outlet 22, with its cross-section exhibiting an optimized streamlined or wedge-shaped structure, where the windward edge is thinner and the leeward edge is thicker, with the overall thickness gradually increasing. By adopting a gradually increasing thickness design, the thickness of the leeward side of electrode 3 is greater than that of the windward side. The thicker leeward side can also enhance the rigidity and deformation resistance of electrode 3, reduce the impact of airflow impact and vibration during use on electrode 3, thereby ensuring the long-term stability of the electrostatic field.

[0070] It should be noted that the thickness of electrode 3 is not limited to a strictly linear increase. In other embodiments, the increase in electrode 3 thickness can be non-linear, for example, using a curved transition to adapt to specific airflow and electric field distribution design requirements; or, in another embodiment, the thickness change of electrode 3 can be step-like, that is, using multiple thickness steps to achieve a progressive design from thin to thick. As long as the overall structure of electrode 3 satisfies the requirement that its thickness on the leeward side is generally greater than that on the windward side, thereby achieving the effect of enhancing structural rigidity and optimizing electric field distribution, it falls within the protection scope of this solution.

[0071] Specifically, in one specific implementation of the embodiment, referring to Figure 6 As shown in the figure, the electrode 3 includes a windward part 31 close to the air inlet 21, a leeward part 32 close to the air outlet 22, and a connecting part 33 connecting the windward part 31 and the leeward part 32. The edges of the windward part 31 and the leeward part 32 are both smoothly transitioned with a circular arc surface, and the thickness of the connecting part 33 is linearly increased from the windward part 31 to the leeward part 32, thereby forming a smooth streamline profile as a whole.

[0072] Compared with the electrode sheet with sharp edges, the smooth electrode sheet can effectively disperse the charge accumulation, avoid the local electric field being too strong, effectively reduce the risk of electric spark generated between the electrode 3 and other parts of the brush, so that the brush works more stably and safely. At the same time, the design of the circular arc transition enables the airflow to smoothly flow through the surface of the electrode 3, and reduces the flow separation and turbulent vortex caused by the airflow impacting the sharp edges as much as possible. The electrode 3 not only effectively reduces the wind noise when the airflow passes through, but also effectively reduces the airflow resistance, which helps to improve the overall dust suction efficiency and avoid unnecessary energy loss.

[0073] In one specific implementation, the circular arc radius of the windward part 31 is designed to be smaller than that of the leeward part 32, thereby forming a shape with a more acute front edge and a more blunt rear edge. In addition, the inner wall of the connecting part 33 and the inner wall of the airflow channel 2 are constructed to be flush, so that the inner surface of the electrode 3 and the inner wall of the airflow channel 2 together form a continuous and smooth flow surface.

[0074] The windward part 31 with a smaller circular arc radius can produce a stronger edge effect, so that the electrostatic field is more concentrated here, thereby more effectively ionizing the air and capturing dust, improving the efficiency and response speed of electrostatic adsorption. The leeward part 32 with a larger circular arc radius can effectively weaken the electric field strength here, effectively suppress the undesired rear edge corona discharge, reduce the generation of ozone and improve the electrical safety. The flush setting of the inner wall of the connecting part 33 and the airflow channel 2 eliminates the flow steps or cavities that may occur here, avoids the vortex and noise generated by the airflow separation here, ensures the aerodynamic efficiency of the airflow channel 2, and provides a basis for the stability of the electrostatic field with smooth airflow, so that the electrostatic field is not disturbed by the turbulent flow.

[0075] In one specific implementation of the embodiment, in order to generate an electrostatic field at the air inlet 21 of the airflow channel 2, the input end of the high-voltage generator (not shown) in the embodiment is connected to the low-voltage direct-current power supply provided by the cleaning device host through a cable and a connector, and the output end is electrically connected to the electrode 3 through a cable.

[0076] The high-voltage generator is configured to convert the input low-voltage power supply into two different types of high-voltage output: one is a stable direct-current high voltage, and the other is a high-frequency alternating-current high voltage with a frequency above 20 kHz. These two working modes can be switched by control signals issued by the cleaning device controller and other structures to adapt to different application scenarios and dust characteristics.

[0077] In addition, the output voltage of the high-voltage generator is between 10 kV and 20 kV. This output voltage range is sufficient to generate a strong electrostatic field, ensuring that sufficient Coulomb force is generated on micron-sized dust particles to achieve efficient capture. At the same time, the upper limit of 20 kV not only effectively suppresses the generation of ozone, but also reliably avoids the risk of electrical breakdown of internal components, effectively improving the overall safety performance of the product.

[0078] Embodiment Two:

[0079] The present embodiment provides a cleaning device, such as a vacuum cleaner. The cleaning device includes a floor brush as described in Embodiment One, and a cleaning device host. The floor brush and the cleaning device host are mechanically connected and fixed by a detachable connection structure (such as a buckle structure, etc.).

[0080] The cleaning device host is internally provided with a main control board and a system power supply for powering the entire device. The floor brush is electrically connected to the cleaning device host through a cable. Specifically, the cable includes two sub-wire bundles, one of which is connected to the input end of the high-voltage generator inside the floor brush for obtaining low-voltage direct-current power from the system power supply, and the other is connected to the control signal end of the high-voltage generator. The main control board of the cleaning device host is configured to: send control signals to the high-voltage generator in the floor brush to control its start and stop.

[0081] Through the above connection method, the cleaning device host and the floor brush can be integrated to form a complete working system. The cleaning device not only has various beneficial effects of the floor brush described in Embodiment One, such as efficient dust capture, reduced roller brush load, improved reliability and service life, etc., but also makes the performance of the entire machine more stable and reliable.

[0082] In the description of the embodiments of the present application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0083] In the description of the embodiments of the present application, it also needs to be explained that, unless explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0084] In the description of the embodiments of the present application, it also needs to be explained that, regarding "first", "second" and the like used herein, it is not particularly intended to refer to the order or sequence, nor to limit the present application. It is only for the purpose of distinguishing the components or operations described by the same technical terms.

[0085] It is obvious to those skilled in the art that the present disclosure is not limited to the details of the above exemplary embodiments, and the present disclosure can be implemented in other specific forms without departing from the spirit or essential characteristics of the present disclosure. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present disclosure is defined by the appended claims, not the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present disclosure. Any reference signs in the claims should not be considered as limiting the claims involved.

[0086] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A floor brush characterized by, The floor brush comprises: a floor brush body (1) having a floor brush suction port (11) for being close to a surface to be cleaned; an airflow channel (2) formed in the floor brush body (1), the airflow channel (2) having an air inlet (21) for receiving airflow from the floor brush suction port (11) and an air outlet (22) for discharging the airflow; an electrode (3) disposed at or close to the air inlet (21), the electrode (3) being configured as a surrounding electrode surrounding the air inlet (21); a high-voltage generator disposed in the floor brush body (1), the high-voltage generator being electrically connected with the electrode (3) for causing the electrode (3) to generate an electrostatic field.

2. The floor brush of claim 1 wherein, The surrounding electrode is a ring-shaped electrode piece surrounding the air inlet (21).

3. The floor brush of claim 1 wherein, The surrounding electrode comprises a plurality of electrode units disposed in a circumferential direction along an inner wall of the airflow channel (2).

4. The floor brush of claim 1 wherein, The electrode (3) is attached to or embedded in the inner wall of the airflow channel (2); and / or, The inner wall of the electrode (3) is flush with the inner wall of the airflow channel (2).

5. The floor brush of claim 1 wherein, The electrode (3) is disposed above the floor brush suction port (11).

6. The floor brush of claim 1 wherein, The thickness of the electrode (3) is equally set or gradually increased from the air inlet (21) to the air outlet (22) in the direction.

7. The floor brush of claim 6 wherein, The electrode (3) comprises a windward part (31), a leeward part (32), and a connecting part (33) connecting the windward part (31) and the leeward part (32), both the windward part (31) and the leeward part (32) adopt a circular arc transition, and the thickness of the connecting part (33) gradually increases from the windward part (31) to the leeward part (32).

8. The floor brush of claim 7 wherein, The radius of the circular arc of the windward part (31) is smaller than the radius of the circular arc of the leeward part (32).

9. The floor brush of claim 1 wherein, The input end of the high-voltage generator is used to connect a low-voltage power supply of a cleaning device host, the high-voltage generator is configured to output a direct-current high voltage or a high-frequency alternating-current high voltage, and the output voltage of the high-voltage generator is between 10 kV and 20 kV.

10. A cleaning apparatus, characterized by The floor brush comprises: a floor brush body (1) having a floor brush suction port (11) for being close to a surface to be cleaned; an airflow channel (2) formed in the floor brush body (1), the airflow channel (2) having an air inlet (21) for receiving airflow from the floor brush suction port (11) and an air outlet (22) for discharging the airflow; an electrode (3) disposed at or close to the air inlet (21), the electrode (3) being configured as a surrounding electrode surrounding the air inlet (21); a high-voltage generator disposed in the floor brush body (1), the high-voltage generator being electrically connected with the electrode (3) for causing the electrode (3) to generate an electrostatic field. The surrounding electrode is a ring-shaped electrode piece surrounding the air inlet (21). The surrounding electrode comprises a plurality of electrode units disposed in a circumferential direction along an inner wall of the airflow channel (2). The electrode (3) is attached to or embedded in the inner wall of the airflow channel (2); and / or, The inner wall of the electrode (3) is flush with the inner wall of the airflow channel (2). The electrode (3) is disposed above the floor brush suction port (11). The thickness of the electrode (3) is equally set or gradually increased from the air inlet (21) to the air outlet (22) in the direction. The electrode (3) comprises a windward part (31), a leeward part (32), and a connecting part (33) connecting the windward part (31) and the leeward part (32), both the windward part (31) and the leeward part (32) adopt a circular arc transition, and the thickness of the connecting part (33) gradually increases from the windward part (31) to the leeward part (32). The radius of the circular arc of the windward part (31) is smaller than the radius of the circular arc of the leeward part (32). The input end of the high-voltage generator is used to connect a low-voltage power supply of a cleaning device host, the high-voltage generator is configured to output a direct-current high voltage or a high-frequency alternating-current high voltage, and the output voltage of the high-voltage generator is between 10 kV and 20 kV. The floor brush comprises:

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