Blower assembly, cleaning apparatus, docking station and cleaning system

Abstract

A blower assembly, and a cleaning apparatus, a cleaning system and a docking station which comprise the blower assembly. The blower assembly comprises: a housing (100) and a blower body (200), the housing (100) having a first opening (120) and a second opening (121), and the blower body (200) having an air inlet (210) and an air outlet (220) and being mounted on the housing (100); and a controller, which is adapted to control the blower assembly to switch between an air output state and an air intake state. When the blower assembly is in the air output state, the first opening (120) is in communication with the air inlet (210) to form a first air intake channel (150), and the air outlet (220) is in communication with the second opening (121) to form a first air output channel (160). When the blower assembly is in the air intake state, the second opening (121) is in communication with the air inlet (220) to form a second air intake channel (170), and the first opening (120) is in communication with the air outlet (220) to form a second air output channel (180). In the blower assembly, the air intake and air suction functions can be achieved by only one blower, thereby eliminating the need for an additional blower and saving on the installation space thereof.

Description

A fan assembly, a cleaning device, a base station and a cleaning system

[0001] Cross Reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 2024112531842, filed on September 6, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of fans, and in particular to a fan assembly, a cleaning device, a base station and a cleaning system. BACKGROUND

[0004] In the related art, a fan is usually used for air intake or air suction in an electrical appliance. However, in an electrical appliance, a single fan cannot simultaneously realize air intake and air suction, and at least two fans usually need to be provided, resulting in an increase in the overall cost of the electrical appliance, and multiple fans increase the overall occupied space of the electrical appliance. SUMMARY

[0005] The present disclosure aims to at least be able to solve the technical problem that a single fan in an electrical appliance cannot simultaneously realize air intake and air suction. To this end, the present disclosure provides a fan assembly, a cleaning device, a base station and a cleaning system, which realize two effects of air outlet and air intake on the cleaning device by switching air outlet state and air intake state.

[0006] The first aspect of the present disclosure provides a fan assembly, comprising:

[0007] a housing having a first opening and a second opening;

[0008] a fan body having an air inlet and an air outlet, and being installed in the housing; and

[0009] a controller adapted to control the fan assembly to switch between an air outlet state and an air intake state;

[0010] In the case that the fan assembly is in the air outlet state, the first opening and the air inlet are communicated to form a first air inlet channel, and the air outlet and the second opening are communicated to form a first air outlet channel; in the case that the fan assembly is in the air intake state, the second opening and the air inlet are communicated to form a second air inlet channel, and the first opening and the air outlet are communicated to form a second air outlet channel.

[0011] The second aspect of the present disclosure provides a cleaning device comprising the fan assembly of any one of the first aspect.

[0012] The third aspect of the present disclosure provides a base station comprising the fan assembly of any one of the first aspect.

[0013] The fourth aspect embodiment of the present disclosure provides a cleaning system, comprising the fan assembly of any one of the first aspect embodiments or the cleaning device of any one of the second aspect embodiments or the base station of any one of the third aspect embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0015] FIG. 1 shows a perspective structural schematic diagram of a fan assembly according to an embodiment of the present disclosure.

[0016] FIG. 2 shows a perspective structural schematic diagram of a first housing of a fan assembly according to an embodiment of the present disclosure.

[0017] FIG. 3 shows one of the exploded views of a fan assembly according to an embodiment of the present disclosure.

[0018] FIG. 4 shows a schematic diagram of a fan assembly in an air intake state according to an embodiment of the present disclosure.

[0019] FIG. 5 shows a schematic diagram of a fan assembly in an air outlet state according to an embodiment of the present disclosure.

[0020] FIG. 6 shows a sectional view of a fan assembly according to an embodiment of the present disclosure.

[0021] FIG. 7 shows the second exploded view of a fan assembly according to an embodiment of the present disclosure.

[0022] FIG. 8 shows a perspective structural schematic diagram of a fan assembly according to an embodiment of the present disclosure.

[0023] FIG. 9 shows a perspective structural schematic diagram of a fan assembly according to an embodiment of the present disclosure.

[0024] Reference signs:

[0025] 100, housing; 110, first housing; 111, first opening; 120, second housing; 121, second opening; 130, recess; 140, fixing groove; 150, first air inlet channel; 160, first air outlet channel; 170, second air inlet channel; 180, second air outlet channel; 190, mounting cavity; 200, fan body; 210, air inlet; 220, air outlet; 310, movable piece; 311, flow guide part; 3111, flow guide channel; 3112, first inlet; 3113, second inlet; 315, first inclined surface; 320, body piece; 321, air inlet; 322, air outlet; 323, first shielding part; 324, second shielding part; 325, matching step; 3251, first matching surface; 3252, second matching surface; 326, protruding wall; 327, second inclined surface; 400, pushing piece; 410, engaging part; 500, driving piece; 600, driving gear; 700, sealing piece; 710, through hole. Embodiments of the present application

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] In addition, the present application can repeatedly refer to numbers and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not imply a relationship between the various embodiments and / or arrangements being discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0028] In the related art, a fan is usually used for air intake or air suction in an electrical appliance. However, in an electrical appliance, a single fan cannot simultaneously realize air intake and air suction, and at least two fans usually need to be arranged, resulting in an increase in the overall cost of the electrical appliance, and multiple fans increase the overall occupied space of the electrical appliance.

[0029] For example, in a cleaning device, two fans need to be arranged, one of which is used as an air suction source to enable dust or liquid to enter the cleaning device, and the other fan is used to discharge the dust or liquid from the cleaning device. Arranging multiple fans increases the overall cost of the cleaning device and is not conducive to the miniaturization of the cleaning device.

[0030] The technical solutions of the present application will be described below in conjunction with the drawings and with reference to specific embodiments.

[0031] Please refer to FIG. 1 to FIG. 3, the present disclosure provides a fan assembly which can be installed on an electric appliance such as a cleaning device, and used as an air suction source and an air pump. Herein, the cleaning device is taken as an example.

[0032] The fan assembly comprises a housing 100 and a fan body 200, the housing 100 has a first opening 111 and a second opening 121. The fan body 200 has an air inlet 210 and an air outlet 220, and is installed on the housing 100. A controller is adapted to control the fan assembly to switch between an air outlet state and an air inlet state. In the case that the fan assembly is in the air outlet state, the first opening 111 and the air inlet 210 are communicated to form a first air inlet channel 150, and the air outlet 220 and the second opening 121 are communicated to form a first air outlet channel 160. In the case that the fan assembly is in the air inlet state, the second opening 121 and the air inlet 210 are communicated to form a second air inlet channel 170, and the first opening 111 and the air outlet 220 are communicated to form a second air outlet channel 180.

[0033] FIG. 4 is a schematic view of the air inlet state of the fan assembly, and FIG. 5 is a schematic view of the air outlet state of the fan assembly. In the case that the fan assembly is in the air outlet state, the air inlet 210 and the first opening 111 are communicated to form the first air inlet channel 150, and the air outlet 220 and the second opening 121 are communicated to form the first air outlet channel 160, so that the airflow can enter from the first opening 111, pass through the first air inlet channel 150 and the first air outlet channel 160, and then flow out from the second opening 121. In the case that the fan assembly is in the air inlet state, the air inlet 210 and the second opening 121 are communicated to form the second air inlet channel 170, and the air outlet 220 and the first opening 111 are communicated to form the second air outlet channel 180, so that the airflow enters from the second opening 121, passes through the second air inlet channel 170 and the second air outlet channel 180, and then flows out from the first opening 111. By switching the air outlet state and the air inlet state of the fan assembly through the controller, the two effects of air outlet and air inlet on the cleaning device can be realized. The first opening 111 and the second opening 121 can be used for air inlet and air outlet in different states, which can reduce the number of interfaces of the fan assembly and other components, and is conducive to the cooperation of the fan assembly and other components.

[0034] The fan assembly can be installed in a cleaning device, and the cleaning device is internally provided with a storage container for containing liquid or dirt, such as a sewage tank. When connected, only one of the first opening 111 and the second opening 121 is communicated with the sewage tank, and the other is communicated with the outside, so as to achieve the effects of inflating and air intake to the sewage tank. Here, the first opening 111 is taken as an example of being communicated with the inside of the sewage tank. In the case that the fan assembly is in the air intake state, the gas in the sewage tank enters the fan assembly through the second opening 121 and flows out of the fan assembly through the first opening 111, so as to drive the liquid or dirt in the sewage tank to flow out. In the case that the fan assembly is in the air outlet state, the gas flows into the fan assembly through the first opening 111 and flows into the sewage tank through the second opening 121, so that a negative pressure state is formed in the inside of the sewage tank, and then the liquid or dirt outside the sewage tank flows into the sewage tank.

[0035] For example, the first opening 111 can be communicated with a dust collection box of the cleaning device. In the case that the fan assembly is in the air intake state, the gas in the dust collection box enters the fan assembly through the second opening 121 and flows out of the fan assembly through the first opening 111, so as to drive the dust in the dust collection box to flow out. In the case that the fan assembly is in the air outlet state, the gas flows into the fan assembly through the first opening 111 and flows into the dust collection box through the second opening 121, so that a negative pressure state is formed in the inside of the dust collection box, and then the dust on the surface to be cleaned (such as the ground) enters the dust collection box through the suction pipeline, so as to achieve the effect of dust collection.

[0036] The fan assembly of the embodiments of the present disclosure can realize the effects of air intake and air outlet in the cleaning device by one fan assembly, without the need to separately arrange an air intake source and an air pump, so as to reduce the parts of the cleaning device, improve the degree of integration, reduce the cost of the cleaning device, and be conducive to reducing the volume of the cleaning device. When installed, only one of the first opening 111 and the second opening 121 needs to be communicated with the storage container of the cleaning device, so as to reduce the installation steps.

[0037] Please refer to FIGS. 3 to 5. In some embodiments, the controller includes a body member 320 and a movable member 310, and the movable member 310 moves relative to the body member 320, so as to switch the fan assembly between the air outlet state and the air intake state. By the relative movement between the body member 320 and the movable member 310, the direction of the airflow in the inside of the fan assembly is guided, so that the first air inlet channel 150 and the first air outlet channel 160 or the second air inlet channel 170 and the second air outlet channel 180 are formed in the inside of the fan assembly, so as to switch the state of the fan assembly. By switching the different states of the fan assembly through the controller, the air intake and air outlet functions can be realized under the premise of using one fan assembly, so as to improve the utilization rate of the fan assembly.

[0038] In some embodiments, the body 320 has an air inlet 321 communicating with the air inlet 210 and an air outlet 322 communicating with the air outlet 220, the air outlet 322 communicating with the air outlet 220 and the air inlet 321 communicating with the air outlet 220. In the air outlet state of the fan assembly, the first air inlet channel 150 is provided in the air inlet 321 and the first air outlet channel 160 is provided in the air outlet 322. In the air inlet state of the fan assembly, the second air inlet channel 170 is provided in the air inlet 321 and the second air outlet channel 180 is provided in the air outlet 322.

[0039] It can be understood that the fan body 200 works to drive the gas to enter the fan body 200 from the air inlet 210 and then flow out from the air outlet 220. In the air outlet state of the fan assembly, the gas enters from the first opening 111, passes through the air inlet 321, the air inlet 210, the air outlet 220 and the air outlet 322, and then flows out from the second opening 121, so as to achieve the purpose of air outlet at the second opening 121. In the air inlet state of the fan assembly, the gas enters from the second opening 121, passes through the air inlet 321, the air inlet 210, the air outlet 220 and the air outlet 322, and then flows out from the first opening 111, so as to achieve the purpose of air inlet at the second opening 121.

[0040] It can be understood that, in the air outlet state of the fan assembly, the first opening 111, the air inlet 321 and the air inlet 210 form the first air inlet channel 150, and the air outlet 220, the air outlet 322 and the second opening 121 form the first air outlet channel 160. In the air inlet state of the fan assembly, the second opening 121, the air inlet 321 and the air inlet 210 form the second air inlet channel 170, and the air outlet 220, the air outlet 322 and the first opening 111 form the second air outlet channel 180.

[0041] In some embodiments, the fan body 200 can include a motor and an impeller, and the fan body 200 drives the impeller to rotate by the motor to drive the gas to flow, so that the gas enters from the air inlet 210 and then flows out from the air outlet 220. In other embodiments, the fan body 200 can also be other structures that can drive the gas to flow, and the embodiments of the present disclosure are not limited thereto.

[0042] Please refer to FIG. 3 to FIG. 5, in some embodiments, the shell 100 comprises a first shell 110 and a second shell 120, one of the first shell 110 and the second shell 120 is connected with the body piece 320, and the other is connected with the movable piece 310. By changing the shape of the shell 100, the relative movement between the movable piece 310 and the body piece 320 can be controlled, so as to switch the state of the fan assembly, without setting an additional clutch, which is conducive to reducing the volume of the fan assembly as a whole and making the fan assembly as a whole lightweight. The first shell 110 and the second shell 120 are located outside the fan assembly, one of the first shell 110 and the second shell 120 is connected with the body piece 320, and the other is connected with the movable piece 310. By controlling the first shell 110 and the second shell 120 outside, the movable piece 310 and the body piece 320 can be controlled, which is convenient to operate. In this embodiment, the first shell 110 is fixedly connected with the body piece 320, and the second shell 120 is fixedly connected with the movable piece 310. In other embodiments, one of the movable piece 310 and the body piece 320 is fixedly arranged, and the other is arranged outside the shell 100, which is convenient to control the movement of the movable piece 310 relative to the body piece 320 according to the use requirement, and the present disclosure does not make special limitation on this.

[0043] It can be understood that the shell 100 is composed of the first shell 110 and the second shell 120, so that the assembly and disassembly of the fan assembly are more convenient. The efficiency of maintenance and repair is improved, and the time and cost can be reduced. By dividing the shell 100 into the first shell 110 and the second shell 120, the internal space can be optimized, the heat dissipation effect can be enhanced, which is helpful to effectively dissipate heat, keep the fan assembly within the normal working temperature range, and improve the durability and protection.

[0044] Please refer to FIG. 2 and FIG. 3, in some embodiments, the movable piece 310 moves relative to the body piece 320 along the first direction, and the air inlet 321 and the air outlet 322 are staggered in the first direction. The air inlet 321 and the air outlet 322 are arranged in the movement direction of the movable piece relative to the body piece 320. The movement of the movable piece changes the relative positions of the air inlet 321 and the air outlet 322 relative to the shell 100, and then changes the state of the fan assembly.

[0045] In the air intake state of the fan assembly, the air inlet 321 is communicated with the second opening 121, and the air outlet 322 is communicated with the first opening 111. Since the air inlet 321 and the air outlet 322 are staggered in the first direction, the movable piece 310 moves relative to the body piece 320 along the first direction, so that the air inlet 321 is communicated with the first opening 111, and the air outlet 322 is communicated with the second opening 121, so as to switch the fan assembly to the air outlet state.

[0046] It can be understood that the first direction (such as the a direction in FIG. 1 and FIG. 3) can be a circumferential direction of the fan assembly, and the air inlet 321 and the air outlet 322 are staggered along the circumferential direction, so that when the movable part 310 moves relative to the body part 320 along the first direction, the air inlet 321 is communicated with the second opening 121 and the air outlet 322 is communicated with the first opening 111, and the state of the fan assembly is switched to that the air inlet 321 is communicated with the first opening 111 and the air outlet 322 is communicated with the second opening 121. If the first direction is a straight line direction, at least two air inlets 321 and at least one air outlet 322 can be provided. For example, two air inlets 321 and one air outlet 322 are provided, and the air outlet 322 is arranged between the two air inlets 321, and the air outlet 322 has the same spacing with the two air inlets 321. In the air inlet state of the fan assembly, one of the air inlets 321 is communicated with the second opening 121 and the air outlet 322 is communicated with the first opening 111. If switched to the air outlet state, only the movable part 310 needs to move relative to the body part 320 along the first direction, so that the air outlet 322 is communicated with the second opening 121 and the other air inlet 321 is communicated with the first opening 111.

[0047] The embodiments of the present disclosure stagger the air inlets 321 and the air outlets 322 in the first direction, so that the second opening 121 is sequentially communicated with the air inlets 321 and the air outlets 322, and the first opening 111 is sequentially communicated with the air outlets 322 and the air inlets 321, thereby switching the state of the fan assembly.

[0048] Please refer to FIG. 3 and FIG. 4, in some embodiments, the movable part 310 is provided with a flow guide part 311, and the flow guide part 311 has a flow guide channel 3111 formed inside, and the flow guide channel 3111 is communicated with the first opening 111 and the air outlet 322 or the air inlet 321. The flow guide channel 3111 is suitable for guiding the direction of airflow, so that the first opening 111 is communicated with the air inlet 321 or the air outlet 322.

[0049] In the air outlet state of the fan assembly, the flow guide channel 3111 is communicated with the air inlet 321, and the second opening 121 is communicated with the air outlet 322. In the air inlet state of the fan assembly, the flow guide channel 3111 is communicated with the air inlet 321, and the second opening 121 is communicated with the air outlet 322.

[0050] In some embodiments, the first opening 111 is arranged on the first housing 110, and the first opening 111 can be communicated with a storage container (such as a sewage tank) of the cleaning device, so that the sewage tank discharges sewage in the air inlet state or absorbs dirt in the air outlet state. By using the flow guide part 311, the first opening 111 can be sequentially communicated with the air inlet 321 and the air outlet 322, thereby realizing different states of the fan assembly.

[0051] The flow guide part 311 is arranged on the movable part 310, and the air inlet 321 and the air outlet 322 are staggered along the first direction on the body part 320. The relative movement of the movable part 310 and the body part 320 causes the flow guide channel 3111 to be sequentially communicated with the air inlet 321 and the air outlet 322 during the relative movement of the movable part 310 and the body part 320, so as to guide the airflow of the first opening 111 to the air inlet 321, or guide the airflow of the air outlet 322 to the first opening 111 to flow out.

[0052] Please refer to FIG. 2 and FIG. 4, in some embodiments, the flow guide part 311 is provided with a first inlet 3112 and a second inlet 3113. The first inlet 3112 and the second inlet 3113 communicate the flow guide channel 3111. When the first inlet 3112 is communicated with the air outlet 322, the body part 320 blocks the second inlet 3113. When the second inlet 3113 is communicated with the air inlet 321, the body part 320 blocks the first inlet 3112.

[0053] Since the air inlet 321 is communicated with the air inlet 210 of the fan body 200, and the air outlet 322 is communicated with the air outlet 220 of the fan body 200, in some embodiments, the air outlet 220 and the air inlet 321 of the fan body 200 are located on opposite sides, and the independent first inlet 3112 and the second inlet 3113 are arranged. The first inlet 3112 is suitable for being communicated with the air outlet 322, and the second inlet 3113 is suitable for being communicated with the air inlet 321. The first inlet 3112 can be arranged according to the direction of the air outlet 220 of the fan body 200, and the second inlet 3113 can be arranged according to the direction of the air inlet of the fan body 200, which is beneficial to the structural design and reduces the airflow resistance of the airflow in the fan assembly as much as possible. In the air inlet state of the fan assembly, the first inlet 3112 is communicated with the air outlet 322, and the body part 320 blocks the second inlet 3113, so that the second inlet 3113 cannot be communicated with the air inlet 321. At this time, the second opening 121 is communicated with the air inlet 321, and the air inlet effect is achieved. The body part 320 moves relative to the movable part 310, so that the body part 320 blocks the first inlet 3112. At this time, the air outlet 322 is communicated with the second opening 121, and the second inlet 3113 is communicated with the air inlet 321, and the air outlet effect is achieved.

[0054] Referring to FIGS. 2 and 3, in some embodiments, the body member 320 is provided with a first shielding portion 323 and a second shielding portion 324. The first shielding portion 323 is adapted to shield the first inlet 3112. The second shielding portion 324 is adapted to shield the second inlet 3113. By the first shielding portion 323, the second inlet 3113 can be shielded, and the first inlet 3112 is communicated with the outlet 322, so that the flow guide channel 3111 is only communicated with the outlet 322 and the first opening 111, and the flow out of the outlet 322 is avoided as much as possible to cause airflow turbulence. By the second shielding portion 324, the first inlet 3112 can be shielded, and the second inlet 3113 is communicated with the inlet 321, so that the flow guide channel 3111 is only communicated with the inlet 321 and the first opening 111, and the airflow out of the outlet 322 is avoided as much as possible to enter the flow guide channel 3111 to cause airflow turbulence.

[0055] Referring to FIGS. 3 to 5, in some embodiments, the body member 320 is moved along the first direction relative to the movable member 310, and the first shielding portion 323 and the second shielding portion 324 are arranged in the first direction. In the case that the first shielding portion 323 shields the first inlet 3112, the second shielding portion 324 cannot shield the second inlet 3113 at the same time, so that the flow guide channel 3111 is at least communicated with at least one of the inlet 321 and the outlet 322, and the first opening 111 is communicated with at least one of the inlet 321 and the outlet 322. The movable member 310 is moved along the first direction relative to the body member 320, so that the first shielding portion 323 and the second shielding portion 324 are sequentially turned to the flow guide portion 311 to switch different states of the fan assembly.

[0056] Referring to FIGS. 3 to 5, in some embodiments, the body member 320 is provided with a fitting step 325, and the flow guide portion 311 is moved on the fitting step 325. The fitting step 325 can accurately butt joint and position the movable member 310 and the body member 320 to ensure the stability and precision of assembly, and avoid misalignment between the movable member 310 and the body member 320.

[0057] Referring to FIGS. 3-5, in some embodiments, the fitting step 325 is provided with a first fitting surface 3251, the first shielding part 323 and the air inlet 321 are arranged on the first fitting surface 3251 along the first direction, and the first inlet 3112 faces the first fitting surface 3251. When the flow guide part 311 is moved on the fitting step 325, the first inlet 3112 slides on the first fitting surface 3251, so that the first inlet 3112 is switched between the first shielding part 323 and the air inlet 321. When the first inlet 3112 moves to the air inlet 321, the first inlet 3112 communicates with the air inlet 321, and when the first inlet 3112 moves to the first shielding part 323, the first shielding part 323 shields the first inlet 3112 to prevent the flow guide part 311 from communicating with the air inlet 321.

[0058] Referring to FIG. 3, in some embodiments, the fitting step 325 is provided with a second fitting surface 3252, the second shielding part 324 and the air outlet 322 are arranged on the second fitting surface 3252 along the first direction, and the second inlet 3113 faces the second fitting surface 3252. When the flow guide part 311 is moved on the fitting step 325, the second inlet 3113 slides on the second fitting surface 3252, so that the second inlet 3113 is switched between the second shielding part 324 and the air outlet 322. When the second inlet 3113 moves to the air outlet 322, the second inlet 3113 communicates with the air outlet 322, and when the second inlet 3113 moves to the second shielding part 324, the second shielding part 324 shields the second inlet 3113 to prevent the flow guide part 311 from communicating with the air outlet 322.

[0059] Referring to FIG. 3, in some embodiments, the first fitting surface 3251 and the second fitting surface 3252 are arranged intersecting each other, so that the air inlet 321 and the air outlet 322 are relatively independent, preventing the airflow from directly entering the air inlet 321 from the air outlet 322.

[0060] Referring to FIG. 3, in some embodiments, the fitting step 325 is circular, and the fitting step 325 is provided with a raised wall 326, and the first fitting surface 3251 is arranged on the raised wall 326 to make the first fitting surface 3251 and the second fitting surface 3252 intersect.

[0061] It can be understood that the movable member 310 is arranged on the first housing 110 close to the second housing 120, and the body member 320 is arranged on the second housing 120 close to the first housing 110. In some embodiments, the first housing 110 is provided with a recess 130 matched with the protruding wall 326, and the flow guide part 311 forms a side wall of the recess 130. When the protruding wall 326 is fitted into the recess 130, the flow guide part 311 abuts against the matching step 325, preventing the movable member 310 and the body member 320 from moving in the radial direction during relative movement of the first housing 110 and the second housing 120. Through the cooperation of the protruding wall 326 and the recess 130, the tightness of the connection between the first housing 110 and the second housing 120 is enhanced, and the sealing between the movable member 310 and the body member 320 is ensured on the premise that the movable member 310 can move relative to the body member 320.

[0062] It can be understood that the first inlet 3112 of the flow guide part 311 abuts against the first matching surface 3251, and the first shielding part 323 and the air outlet 322 are arranged on the first matching surface 3251 along the first direction. When the movable member 310 and the body member 320 move relative to each other along the first direction, the first inlet 3112 is shielded by the first shielding part 323 and is not communicated with the air outlet 322. The second inlet 3113 of the flow guide part 311 abuts against the second matching surface 3252, and the second shielding part 324 and the air inlet 321 are arranged on the second matching surface 3252 along the first direction. When the movable member 310 and the body member 320 move relative to each other along the first direction, the second inlet 3113 is shielded by the second shielding part 324 and is not communicated with the air inlet 321.

[0063] Please refer to FIGS. 6-7. In some embodiments, the movable member 310 is provided with a first inclined surface 315, and the first inlet 3112 and the second inlet 3113 are arranged on the first inclined surface 315. The body member 320 is provided with a second inclined surface 327, and the first shielding part 323, the air inlet 321, the second shielding part 324 and the air outlet 322 are arranged on the second inclined surface 327. The first inclined surface 315 abuts against the second inclined surface 327.

[0064] The cooperation of the first inclined surface 315 and the second inclined surface 327 allows the movable member 310 and the body member 320 to move up and down under the action of gravity, and the movable member 310 and the body member 320 move towards each other, so that the first inclined surface 315 and the second inclined surface 327 are tightly matched, improving the air tightness.

[0065] Referring to FIGS. 4-5, in some embodiments, the first housing 110 and the second housing 120 form a mounting cavity 190 of the fan body 200. The mounting cavity 190 serves as a physical barrier to prevent external dust, moisture, and other impurities from entering the interior of the fan body 200, thereby providing a good working environment for the fan body 200. The mounting cavity 190 is formed by connecting the first housing 110 and the second housing 120, which can simplify the installation process and avoid complex assembly processes. The first housing 110 can be provided with a fixing groove 140 inside, which can be used to fix the fan body 200, while the second housing 120 is used to enclose and protect the fan body 200. The protruding wall 326 is embedded in the recessed part 130, so that the first housing 110 and the second housing 120 are connected, and at this time the fixing groove 140 and the recessed part 130 are connected to form the mounting cavity 190.

[0066] Referring to FIGS. 4-5, in some embodiments, the first housing 110 and the second housing 120 are coaxially arranged. Coaxial arrangement ensures balance and symmetry between the first housing 110 and the second housing 120, reducing friction and wear caused by shaft offset. This can prolong the service life of the fan assembly and reduce maintenance frequency and cost.

[0067] Referring to FIGS. 4-5, in some embodiments, the movable part 310 rotates relative to the body part 320 along the circumferential direction. In the case where the movable part 310 rotates relative to the body part 320 along a single direction, the fan assembly can continuously switch between the air suction state and the air outlet state. In this process, there is no need to change the rotation direction, that is, the movable part 310 rotates relative to the body part 320 along the circumferential direction in a single direction, which not only enables the state of the fan assembly to be switched, but also enables the movable part 310 and the body part 320 to return to the initial relative position through continuous rotation. During operation, there is no need to frequently change the rotation direction, reducing the complexity of operation.

[0068] Referring to FIG. 3, in some embodiments, the fan assembly further comprises a sealing member 700, which is arranged between the movable part 310 and the body part 320, that is, between the first housing 110 and the second housing 120. The sealing member 700 is provided with a through hole 710 for airflow. By arranging the sealing member 700, the sealing property between the first housing 110 and the second housing 120 can be improved, and the probability of air leakage can be reduced. The through hole 710 can correspond to the air inlet 321 or the air outlet 322, so as to avoid the sealing member 700 from hindering airflow passing through the air inlet 321 or the air outlet 322. In this embodiment, the through hole 710 is arranged corresponding to the air inlet 321.

[0069] Please refer to FIG. 3 to FIG. 5, in some embodiments, the number of the through holes 710 is N, where N is a positive integer. The plurality of through holes 710 are arranged to increase the speed of the airflow passing through. Correspondingly, the number of the air inlets 321 and the air outlets 322 is also N, the plurality of air inlets 321 and the air outlets 322 are arranged at intervals in the moving direction of the movable member 310 relative to the body member 320, so that the flow guide part 311 sequentially communicates the air inlets 321 and the air outlets 322. It should be noted that the air inlets 321 and the air outlets 322 are arranged at equal intervals in the moving direction of the movable member 310 relative to the body member 320, so that the movable member 310 moves the same interval relative to the body member 320 to switch the air intake state and the air outlet state.

[0070] Please refer to FIG. 3 to FIG. 5, in some embodiments, the movable member 310 rotates a set angle a (a = 360 / N) relative to the body member 320 to switch the fan assembly between the air intake state and the air outlet state.

[0071] In the case that the movable member 310 rotates along the circumferential direction relative to the body member 320 to switch the state of the fan assembly, the air inlets 321 and the air outlets 322 can be arranged at equal intervals along the circumferential direction of the body member 320. In the embodiment of the present disclosure, taking N = 3 as an example, the movable member 310 rotates a (a = 360 / 3 = 120) degrees relative to the body member 320, that is, the movable member 310 rotates 120 degrees relative to the body member 320 to switch the air intake state and the air outlet state of the fan assembly.

[0072] Please refer to FIG. 3 to FIG. 5, in some embodiments, the movable member 310 moves relative to the body member 320 to switch the fan assembly between the air intake state and the air outlet state. The movable member 310 can be arranged in the axial direction or the radial direction relative to the body member 320 to switch different states. The embodiment of the present disclosure does not limit the moving direction of the movable member 310 relative to the body member 320, as long as the air inlets 321 and the air outlets 322 are staggered in the moving direction.

[0073] Please refer to FIG. 8, in some embodiments, the fan assembly comprises a knob 400, the knob 400 is fixed to the body member 320 or the movable member 310, that is, the knob 400 is fixed to the first shell 110 or the second shell 120, and the knob 400 is connected to one of the movable member 310 and the body member 320. By moving the knob 400, the movable member 310 can be rotated relative to the body member 320. The knob 400 can extend outside the shell 100, facilitating the operation of the knob 400. The knob 400 can be block-shaped, rod-shaped, etc., and the specific shape of the knob 400 is not limited in the embodiment of the present disclosure.

[0074] Referring to FIG. 9, in some embodiments, the fan assembly comprises a driving member 500, a driving portion of the driving member 500 being connected to the toggle member 400. The driving member 500 can drive the toggle member 400 to move, so that the movable member 310 moves relative to the body member 320. The fan assembly can automatically switch states under the action of the driving member 500, without manual control, saving manpower. The driving member 500 can be a motor or a pneumatic cylinder.

[0075] Referring to FIG. 9, in some embodiments, the fan assembly comprises a driving gear 600, a driving portion of the driving member 500 being connected to the driving gear 600, and the toggle member 400 is provided with an engagement portion 410, the engagement portion 410 being engaged with the driving gear 600. Through the engagement of the engagement portion 410 and the driving gear 600, the power of the driving member 500 can be transmitted, so that the movable member 310 moves relative to the body member 320. Through the transmission of the power of the driving member 500 by the engagement of the engagement portion 410 and the driving gear 600, the installation position of the driving member 500 can be more flexibly arranged, so that the structural layout of the fan assembly is more reasonable.

[0076] The second aspect of the present disclosure provides a cleaning device comprising the fan assembly of any of the above-mentioned embodiments of the first aspect.

[0077] It can be understood that the fan assembly has the beneficial effects of the above-mentioned embodiments, and the cleaning device accordingly has the beneficial effects of the above-mentioned embodiments, and the specific embodiments can be referred to the above-mentioned embodiments, and the present disclosure will not be repeated.

[0078] In some embodiments, the cleaning device is one of a scrubber, a sweeper, and a vacuum cleaner.

[0079] In some embodiments, the cleaning device is a scrubber, and the cleaning device further comprises a sewage tank, the sewage tank comprising a first inlet and a first outlet, the first opening 111 being communicated with the sewage tank. In the case that the fan assembly is in the air intake state, the dirt in the sewage tank is discharged from the first outlet. In the case that the fan assembly is in the air outlet state, the dirt is sucked into the sewage tank from the first inlet.

[0080] It can be understood that, in the case that the fan assembly is in the air intake state, the second opening 121 intakes air and the first opening 111 outlets air, increasing the air pressure of the sewage tank, so that the dirt flows out of the sewage tank from the second inlet, achieving the effect of discharging dirt. In the case that the fan assembly is in the air outlet state, the second opening 121 outlets air and the first opening 111 intakes air, so that a negative pressure state is formed in the sewage tank, and the dirt enters the sewage tank from the first inlet, achieving the effect of sucking dirt.

[0081] In some embodiments, the cleaning device is a sweeper, and the cleaning device comprises a dust box, the dust box comprising a first inlet and a first outlet, the first opening 111 being in communication with the dust box. In the case that the fan assembly is in the air intake state, the dirt in the dust box is discharged by the first outlet. In the case that the fan assembly is in the air outlet state, the dirt is sucked into the dust box by the first inlet.

[0082] It can be understood that, in the case that the fan assembly is in the air intake state, the second opening 121 intakes air, and the first opening 111 discharges air, which increases the air pressure of the dust box, so that the dirt flows out of the dust box by the first inlet, achieving the effect of discharging dirt. In the case that the fan assembly is in the air outlet state, the second opening 121 discharges air, and the first opening 111 intakes air, so that a negative pressure state is formed inside the dust box, and the dirt enters the dust box by the first inlet, achieving the effect of sucking dirt.

[0083] The third aspect of the present disclosure provides a base station comprising the fan assembly of any one of the first aspect or the cleaning device of any one of the second aspect.

[0084] It can be understood that the fan assembly and the cleaning device have the beneficial effects of the above embodiments, and therefore the base station also has the beneficial effects of the above embodiments, the specific implementation of which can be referred to the above embodiments, and the present disclosure will not be repeated.

[0085] In some embodiments, the base station comprises a sewage tank, the sewage tank comprising a second inlet and a second outlet, the first opening 111 being in communication with the sewage tank, and the fan assembly being adapted to drive the dirt inside the sewage tank to be discharged by the second outlet and to drive the dirt to enter the sewage tank by the second inlet.

[0086] It can be understood that, in the case that the fan assembly is in the air intake state, the second opening 121 intakes air, and the first opening 111 discharges air, which increases the air pressure of the sewage tank, so that the dirt flows out of the sewage tank by the second outlet, achieving the effect of discharging dirt. In the case that the fan assembly is in the air outlet state, the second opening 121 discharges air, and the first opening 111 intakes air, so that a negative pressure state is formed inside the sewage tank, and the dirt enters the sewage tank by the second inlet, achieving the effect of sucking dirt.

[0087] The fourth aspect of the present disclosure provides a cleaning system comprising the fan assembly of any one of the first aspect or the cleaning device of any one of the second aspect or the base station of any one of the third aspect.

[0088] It can be understood that the fan assembly, the cleaning device and the base station have the beneficial effects of the above embodiments, and therefore the cleaning system also has the beneficial effects of the above embodiments, the specific implementation of which can be referred to the above embodiments, and the present disclosure will not be repeated.

[0089] The first aspect of the present disclosure provides a fan assembly, comprising:

[0090] a housing having a first opening and a second opening;

[0091] a fan body having an air inlet and an air outlet, and being mounted in the housing; and

[0092] a controller adapted to control the fan assembly to switch between an air-out state and an air-in state;

[0093] when the fan assembly is in the air-out state, the first opening and the air inlet are in communication to form a first air-in channel, and the air outlet and the second opening are in communication to form a first air-out channel; and when the fan assembly is in the air-in state, the second opening and the air inlet are in communication to form a second air-in channel, and the first opening and the air outlet are in communication to form a second air-out channel.

[0094] In some embodiments, the controller comprises a body member and a movable member, the movable member being movable relative to the body member to switch the fan assembly between the air-out state and the air-in state.

[0095] In some embodiments, the body member has an air-in port in communication with the air inlet and an air-out port in communication with the air outlet. When the fan assembly is in the air-out state, the first air-in channel passes through the air-in port, and the first air-out channel passes through the air-out port. When the fan assembly is in the air-in state, the second air-in channel passes through the air-in port, and the second air-out channel passes through the air-out port.

[0096] In some embodiments, the movable member is provided with a flow guide portion, an inner portion of the flow guide portion forming a flow guide channel, the flow guide channel being in communication with the first opening and the air outlet or the air inlet.

[0097] In some embodiments, the movable member is movable relative to the body member along a first direction, and the air-in port and the air-out port are misaligned in the first direction.

[0098] In some embodiments, the flow guide portion is provided with a first inlet and a second inlet. The first inlet or the second inlet is in communication with the flow guide channel. When the fan assembly is in the air-in state, the first inlet is in communication with the air-out port, and the second inlet is blocked by the movable member. When the fan assembly is in the air-out state, the second inlet is in communication with the air-in port, and the first inlet is blocked by the movable member.

[0099] In some embodiments, the body member is provided with a first blocking portion and a second blocking portion. The first blocking portion is adapted to block the first inlet. The second blocking portion is adapted to block the second inlet.

[0100] In some embodiments, the movable member is movable relative to the body member along a first direction, and the first blocking part and the second blocking part are arranged in a staggered manner in the first direction.

[0101] In some embodiments, a fitting step is formed on the body member, and the flow guide part is movable on the fitting step.

[0102] In some embodiments, a first fitting surface is arranged on the fitting step, and the first blocking part and the air inlet are arranged on the first fitting surface along a first direction, and the first inlet faces the first fitting surface. A second fitting surface is arranged on the fitting step, and the second blocking part and the air outlet are arranged on the second fitting surface along the first direction, and the second inlet faces the second fitting surface.

[0103] In some embodiments, a first inclined surface is arranged on the body member, and the first inlet and the second inlet are arranged on the first inclined surface. A second inclined surface is arranged on the movable member, and the first blocking part, the air inlet, the second blocking part and the air outlet are arranged on the second inclined surface. The first inclined surface and the second inclined surface are in abutment.

[0104] In some embodiments, the movable member is rotatable relative to the body member along a circumferential direction.

[0105] In some embodiments, the number of the flow guide parts, the air outlets and the air inlets is N, where N is a positive integer. The movable member is circumferentially rotatable relative to the body member by an angle α (α = 360 / N) to switch the fan assembly between the air intake state and the air outlet state.

[0106] In some embodiments, the housing comprises a first housing and a second housing, one of the first housing and the second housing is connected with the body member, and the other is connected with the movable member.

[0107] In some embodiments, the first housing and the second housing are connected to form a mounting cavity of the fan body, and the air inlet is in communication with the mounting cavity.

[0108] In some embodiments, the fan assembly further comprises a sealing member arranged between the body member and the movable member, and the sealing member is provided with a through hole for airflow.

[0109] In some embodiments, the fan assembly further comprises a dial member connected to the body member or the movable member.

[0110] In some embodiments, the fan assembly further comprises a driving member, a driving portion of the driving member is connected to the poking member.

[0111] In some embodiments, the fan assembly further comprises a driving gear, a driving portion of the driving member is connected to the driving gear, an engaging portion is arranged on the poking member, and the engaging portion is engaged with the driving gear.

[0112] The second aspect of the present disclosure provides a cleaning device comprising the fan assembly of any of the first aspect.

[0113] In some embodiments, the cleaning device is one of a scrubber, a sweeper, and a vacuum cleaner.

[0114] In some embodiments, the cleaning device is a scrubber, and the cleaning device further comprises a dirty water tank, the first opening is communicated with the dirty water tank, and the dirty water tank comprises a first inlet and a first outlet. In a case where the fan assembly is in the air intake state, dirt in the dirty water tank is discharged by the first outlet. In a case where the fan assembly is in the air outlet state, dirt is sucked into the dirty water tank by the first inlet.

[0115] In some embodiments, the cleaning device is a sweeper, and the cleaning device comprises a dust box, the first opening is communicated with the dust box, and the dust box comprises a first inlet and a first outlet. In a case where the fan assembly is in the air intake state, dirt in the dust box is discharged by the first outlet. In a case where the fan assembly is in the air outlet state, dirt is sucked into the dust box by the first inlet.

[0116] The third aspect of the present disclosure provides a base station comprising the fan assembly of any of the first aspect.

[0117] In some embodiments, the base station comprises a dirty water tank, the first opening is communicated with the dirty water tank, the dirty water tank comprises a second inlet and a second outlet, and the fan assembly is adapted to drive dirt inside the dirty water tank to be discharged by the second outlet and to drive dirt to enter the dirty water tank by the second inlet.

[0118] The fourth aspect of the present disclosure provides a cleaning system comprising the fan assembly of any of the first aspect, the cleaning device of any of the second aspect, or the base station of any of the third aspect.

[0119] In the present disclosure, unless specifically defined otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0120] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative position relationship, motion condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0121] In the present disclosure, unless specifically defined otherwise, the terms "connection", "fixing" and the like should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0122] In addition, the description such as "first", "second" and the like in the present disclosure is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0123] Although the embodiments of the present disclosure have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. A fan assembly, comprising: a housing (100) having a first opening (111) and a second opening (121); a fan body (200) having an air inlet (210) and an air outlet (220) and being installed in the housing (100); and a controller adapted to control the fan assembly to switch between an air-out state and an air-in state; in the case that the fan assembly is in the air-out state, the first opening (111) and the air inlet (210) are communicated to form a first air-in channel (150), and the air outlet (220) and the second opening (121) are communicated to form a first air-out channel (160); in the case that the fan assembly is in the air-in state, the second opening (121) and the air inlet (210) are communicated to form a second air-in channel (170), and the first opening (111) and the air outlet (220) are communicated to form a second air-out channel (180). The controller comprises a body part (320) and a movable part (310), the movable part (310) moves relative to the body part (320) to switch the fan assembly between the air-out state and the air-in state.

2. A fan assembly according to claim 1, wherein, The body part (320) has an air inlet (321) communicated with the air inlet (210) and an air outlet (322) communicated with the air outlet (220); in the case that the fan assembly is in the air-out state, the first air-in channel (150) passes through the air inlet (321), and the first air-out channel (160) passes through the air outlet (322); in the case that the fan assembly is in the air-in state, the second air-in channel (170) passes through the air inlet (321), and the second air-out channel (180) passes through the air outlet (322).

3. A fan assembly according to claim 2, wherein, The movable part (310) is provided with a flow guide part (311), an inner part of the flow guide part (311) forms a flow guide channel (3111), the flow guide channel (3111) is communicated with the first opening (111) and the air outlet (322) or the air inlet (321).

4. A fan assembly according to claim 3, wherein, The movable part (310) moves relative to the body part (320) along a first direction, the air inlet (321) and the air outlet (322) are arranged in a staggered manner in the first direction.

5. A fan assembly according to claim 4, wherein, The flow guide part (311) is provided with a first inlet (3112) and a second inlet (3113); the first inlet (3112) and the second inlet (3113) are communicated with the flow guide channel (3111); in the case that the fan assembly is in the air-in state, the first inlet (3112) is communicated with the air outlet (322), and the movable part (310) blocks the second inlet (3113); in the case that the fan assembly is in the air-out state, the second inlet (3113) is communicated with the air inlet (321), and the movable part (310) blocks the first inlet (3112).

6. A fan assembly according to claim 4, wherein, ​ 7. A fan assembly according to claim 6, wherein, The body piece (320) is provided with a first shielding part (323) and a second shielding part (324), the first shielding part (323) is suitable for shielding the first inlet (3112); the second shielding part (324) is suitable for shielding the second inlet (3113).

8. A fan assembly according to claim 7, wherein, The movable piece (310) is movable relative to the body piece (320) along a first direction, the first shielding part (323) and the second shielding part (324) are arranged in a staggered manner in the first direction.

9. A fan assembly according to claim 4, wherein, A matching step (325) is formed on the body piece (320), and the flow guide part (311) is movable on the matching step (325).

10. A fan assembly according to claim 9, wherein, The matching step (325) is provided with a first matching surface (3251), the first shielding part (323) and the air inlet (321) are arranged on the first matching surface (3251) along a first direction, and the first inlet (3112) faces the first matching surface (3251); the matching step (325) is provided with a second matching surface (3252), the second shielding part (324) and the air outlet (322) are arranged on the second matching surface (3252) along a first direction, and the second inlet (3113) faces the second matching surface (3252).

11. A fan assembly according to claim 8, wherein, The body piece (320) is provided with a first inclined surface (315), the first inlet (3112) and the second inlet (3113) are arranged on the first inclined surface (315), the movable piece (310) is provided with a second inclined surface (327), the first shielding part (323), the air inlet (321), the second shielding part (324) and the air outlet (322) are arranged on the second inclined surface (327); the first inclined surface (315) and the second inclined surface (327) are in abutment.

12. A fan assembly according to claim 2, wherein, The movable piece (310) is rotatable relative to the body piece (320) along a circumferential direction.

13. A fan assembly according to claim 4, wherein, The number of the flow guide part (311), the air outlet (322) and the air inlet (321) is N, wherein N is a positive integer; the movable piece (310) is circumferentially rotatable relative to the body piece (320) by a set angle α (α=360 / N) to switch the fan assembly between an air inlet state and an air outlet state.

14. A fan assembly according to claim 2, wherein, The housing (100) comprises a first housing (110) and a second housing (120), one of the first housing (110) and the second housing (120) is connected with the body piece (320), and the other is connected with the movable piece (310).

15. A fan assembly according to claim 14, wherein, The first housing (110) and the second housing (120) are connected to form a mounting cavity (190) of the fan body (200), and the air inlet (210) communicates with the mounting cavity (190).

16. The fan assembly according to claim 14, further comprising a sealing piece (700) arranged between the movable piece (310) and the body piece (320), and the sealing piece (700) is provided with a through hole (710) for airflow.

17. The fan assembly of claim 2, further comprising a toggle member (400) connected to the body member (320) or the movable member (310).

18. The fan assembly of claim 15, further comprising a driving member (500), a driving portion of the driving member (500) connected to the toggle member (400).

19. The fan assembly of claim 16, further comprising a driving gear (600), a driving portion of the driving member (500) connected to the driving gear (600), and the toggle member (400) provided with an engaging portion (410) engaged with the driving gear (600).

20. A cleaning device comprising the fan assembly of any one of claims 1 to 19.

21. The cleaning apparatus of claim 20, wherein, The cleaning device is one of a scrubber, a sweeper, and a vacuum cleaner.

22. The cleaning apparatus of claim 20, wherein, The cleaning device is a scrubber, and the cleaning device further comprises a dirty water tank, the first opening (111) communicating with the dirty water tank, the dirty water tank comprising a first inlet and a first outlet; In the case that the fan assembly is in the air intake state, dirt in the dirty water tank is discharged by the first outlet; in the case that the fan assembly is in the air outlet state, dirt is sucked into the dirty water tank by the first inlet.

23. The cleaning apparatus of claim 20, wherein, The cleaning device is a sweeper, and the cleaning device comprises a dust box, the first opening (111) communicating with the dust box, the dust box comprising a first inlet and a first outlet; In the case that the fan assembly is in the air intake state, dirt in the dust box is discharged by the first outlet; In the case that the fan assembly is in the air outlet state, dirt is sucked into the dust box by the first inlet.

24. A base station comprising the fan assembly of any one of claims 1 to 19.

25. The base station of claim 24, comprising a dirty water tank, the first opening (111) communicating with the dirty water tank; the dirty water tank comprising a second inlet and a second outlet, the fan assembly adapted to drive dirt inside the dirty water tank to be discharged by the second outlet and to drive dirt to enter the dirty water tank by the second inlet.

26. A cleaning system comprising the fan assembly of any one of claims 1 to 19 or the cleaning device of any one of claims 20 to 23 or the base station of any one of claims 24 to 25.

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