CN219119490U - Fan subassembly and cleaning device - Google Patents

Abstract

The application discloses fan subassembly and cleaning equipment, wherein the fan subassembly includes first fan, second fan and shifter. The switching mechanism is connected with the first fan and the second fan and can be switched between a first communication state and a second communication state. The switching mechanism is arranged to enable the air outlet side of the first fan to be communicated with the air inlet side of the second fan in a first communication state, so that a series air path can be formed between the first fan and the second fan. And in the second communication state, the air inlet side of the first fan and the air inlet side of the second fan are enabled to be independent of each other for air inlet, and the air outlet side of the first fan and the air outlet side of the second fan are enabled to be independent of each other for air outlet, so that the first fan and the second fan form a parallel air path. Through the mode, the working modes between fans can be enriched.

Description

Fan subassembly and cleaning device

Technical Field

The application relates to the technical field of intelligent cleaning equipment, in particular to a fan assembly and cleaning equipment.

Background

With the development of intelligent manufacturing technology and communication technology, more and more intelligent household equipment serves the life of people, and great convenience is brought to the life of people.

Cleaning equipment, such as dust collectors, sweeping robots and the like, can semi-automatically or automatically realize cleaning work such as floor sweeping, dust removal and the like by sucking garbage objects through a fan. However, if the working efficiency of the fan is required to be changed in the actual cleaning process, for example, the power of the fan is improved, the cleaning effect is improved, the fan with larger power can be replaced, and the fan is required to break through to the larger power at present, so that the cleaning effect is difficult.

Disclosure of Invention

The technical problem that this application mainly solves is to provide fan subassembly and cleaning equipment, can improve the work efficiency of fan.

In a first aspect, embodiments of the present application provide a fan assembly including a first fan, a second fan, and a switching mechanism. The switching mechanism is connected with the first fan and the second fan and can be switched between a first communication state and a second communication state. The switching mechanism is arranged to enable the air outlet side of the first fan to be communicated with the air inlet side of the second fan in a first communication state, so that a series air path can be formed between the first fan and the second fan. And in the second communication state, the air inlet side of the first fan and the air inlet side of the second fan are enabled to be independent of each other for air inlet, and the air outlet side of the first fan and the air outlet side of the second fan are enabled to be independent of each other for air outlet, so that the first fan and the second fan form a parallel air path.

In a second aspect, embodiments of the present application provide a cleaning apparatus comprising an apparatus body, a blower assembly as described above, a cleaning module, and a recovery mechanism. The fan assembly is connected with the equipment main body. The cleaning module is connected with the equipment main body and is used for cleaning the working surface. The recovery mechanism is arranged on the equipment main body and communicated with the fan assembly, and the recovery mechanism is used for containing garbage collected by the cleaning module.

The beneficial effects of this application are: the air flow entering the fan assembly sequentially passes through the first fan and the second fan, and at the moment, the first fan and the second fan are sequentially communicated end to end, and the first fan and the second fan work in a serial mode. When the two fans are in series connection, a larger centrifugal force is provided for air in the same air flow channel, so that a larger static pressure is provided for the cleaning equipment on the basis of not changing the power and the structure of the fans. Under the second communication state, the switching mechanism enables the air inlet side of the first fan and the air inlet side of the second fan to be independent of each other for air inlet, the air outlet side of the first fan and the air outlet side of the second fan are independent of each other for air outlet, air flow entering the fan assembly passes through the first fan and the second fan respectively, at the moment, air flow formed by the first fan passes through the first fan, air flow formed by the second fan passes through the second fan, and the first fan and the second fan are in parallel connection. When two fans are operated in parallel, the amount of air flowing through the fan in unit time is increased, so that a larger air quantity is provided for the cleaning equipment. Therefore, the fan series connection work and the parallel connection work are switched through switching the first communication state and the second communication state, so that larger static pressure or larger air quantity is provided for the cleaning equipment on the basis of not changing the power and the structure of the fan, different requirements in actual application are met, functions of the cleaning equipment are enriched, and cleaning efficiency is improved.

Drawings

FIG. 1 is a schematic view of a cleaning apparatus embodiment of the present application;

FIG. 2 is a schematic perspective view of a first exemplary configuration of a fan assembly embodiment of the present application;

FIG. 3 is a schematic illustration of the fan assembly of FIG. 2 in an exploded configuration;

FIG. 4 is a schematic top view of the blower assembly of FIG. 2;

fig. 5 is a perspective schematic structural view of the switching element shown in fig. 3;

FIG. 6 is a schematic view in partial perspective of the switching element of FIG. 5 showing the air intake passage;

FIG. 7 is a schematic view in partial perspective of the switching element of FIG. 5 showing the air outlet passage;

FIG. 8 is a schematic view in partial perspective of the switching element of FIG. 5 showing communication channels;

FIG. 9 is a schematic cross-sectional view of FIG. 2 taken along section line A-A showing a first communication state;

FIG. 10 is a schematic sectional view of the structure of FIG. 2 along section line A-A showing a second communication state;

FIG. 11 is a schematic perspective view of a second exemplary configuration of a fan assembly embodiment of the present application;

FIG. 12 is a schematic view of the fan assembly of FIG. 11 in an exploded configuration;

FIG. 13 is a schematic side elevational view of the blower assembly of FIG. 11;

FIG. 14 is a perspective schematic structural view of the switching element shown in FIG. 12;

FIG. 15 is a schematic view in partial perspective view of the switching element of FIG. 14 showing a first channel;

FIG. 16 is a schematic view in partial perspective of the switching element of FIG. 14 showing a second channel;

FIG. 17 is a schematic view in partial perspective view showing a communication passage in the switching element shown in FIG. 11;

FIG. 18 is a schematic sectional view of the first communication state along the line B-B in FIG. 11

Fig. 19 is a schematic sectional structure view showing a second communication state along a section line B-B in fig. 11.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

With the development of intelligent manufacturing technology and communication technology, more and more intelligent household equipment serves the life of people, and great convenience is brought to the life of people. Cleaning equipment such as dust collectors, sweeping robots and the like can realize cleaning work such as floor sweeping and dust removal semi-automatically or automatically by providing static pressure and air quantity for sucking garbage objects through a fan. The static pressure provided by the blower is, for example, the negative pressure of the near vacuum created by the operation of the cleaning apparatus by the blower. When the fan discharges the air in the cleaning device, the cleaning device is in an approximate vacuum transient state, and negative pressure is formed with the external atmospheric pressure, so that static pressure is generated. Under the action of static pressure, the cleaning equipment sucks air containing garbage objects, so that the aim of cleaning is fulfilled. The air quantity provided by the fan is, for example, the air quantity flowing through the fan in unit time, and the larger the air quantity is, the more the air containing garbage objects is sucked by the cleaning equipment in unit time.

The inventor of the application has long studied and found that the cleaning device provides static pressure and air volume to suck garbage objects, and in the practical application process, because the sucked garbage objects are different, the requirements on the static pressure and the air volume are different, for example, when sucking objects such as paper clusters which possibly generate larger resistance, the fan is required to provide larger static pressure, and for example, when sucking more dust on the ground, the fan is required to provide larger air volume. However, in the existing cleaning equipment, it is difficult for the fan to increase static pressure while maintaining the air volume unchanged or increase the air volume while maintaining the static pressure, and the conventional method generally increases the power of the fan to increase the static pressure or the air volume, but the power of the existing fan is difficult to break through to larger power, and simply increasing the power of the fan can cause the problems of shortening the endurance time, increasing the noise, increasing the heat and the like. Based on this, the present application proposes the following embodiments to solve the above technical problems.

The following cleaning device embodiments of the present application describe exemplary configurations of cleaning devices.

As shown in fig. 1, the cleaning device 1 may include: the apparatus includes an apparatus main body 100, a blower assembly 200, a cleaning module 300, and a recovery mechanism 400.

The cleaning device 1 is used for performing cleaning operations. The cleaning device 1 is, for example, a cleaning robot or a vacuum cleaner or the like, and may have one or more cleaning functions such as cleaning, sweeping, mopping, and washing. Alternatively, the cleaning device 1 may be a self-walking cleaning device 1, which is capable of walking autonomously or under command control, to perform a cleaning operation. Alternatively, the cleaning device 1 may be a hand-held cleaner.

The apparatus body 100 is used for sucking and storing refuse objects. The cleaning module 300 is connected to the apparatus body 100, and the cleaning module 300 is used for cleaning a working surface, specifically, for collecting garbage objects to be cleaned by contacting the working surface, thereby cleaning the working surface. The recycling mechanism 400 is disposed on the apparatus body 100 and is in communication with the blower assembly 200, and the recycling mechanism 400 is configured to accommodate the garbage collected by the cleaning module 300. The blower assembly 200 is detachably coupled to the apparatus body 100 to provide suction power to the apparatus body 100. Specifically, the fan assembly 200 may be mounted to the apparatus main body 100 by inserting, assembling, combining, or the like, and the apparatus main body 100 may have a cleaning function or a dust collection function, and of course, may have both the cleaning function and the dust collection function, and may also have other cleaning functions.

The blower assembly 200 includes a first blower 210, a second blower 220, and a switching mechanism 230. The first blower 210 and the second blower 220 are structures for converting mechanical energy of rotation of the inner impeller into pressure energy and kinetic energy of gas and sucking the gas. One side of the air entering the impeller is an air inlet side of the fan, and one side of the air leaving the impeller is an air outlet side of the fan. Specifically, the air inlet side of the fan can be an air draft inlet of the fan, and the air outlet side of the fan is an air draft outlet of the fan.

The switching mechanism 230 connects the first blower 210 and the second blower 220, and is capable of switching between a first communication state and a second communication state. Wherein the switching mechanism 230 is configured to communicate the air outlet side of the first fan 210 and the air inlet side of the second fan 220 in the first communication state so as to be able to form a serial air path between the first fan 210 and the second fan 220. And in the second communication state, the air inlet side of the first fan 210 and the air inlet side of the second fan 220 are enabled to be independent of each other, and the air outlet side of the first fan 210 and the air outlet side of the second fan 220 are enabled to be independent of each other, so that the first fan 210 and the second fan 220 form a parallel air path with each other.

Specifically, the switching mechanism 230 has a communication passage 313, a first passage 315, and a second passage 316, and the communication passage 313, the first passage 315, and the second passage 316 are independent of each other. For example, the first channel 315 and the second channel 316 are disposed on different sides of the switching mechanism 230, and the communication channel 313 is disposed inside the switching mechanism 230, and the first channel 315, the second channel 316 and the communication channel 313 are spaced apart from each other and are not communicated with each other. The switching mechanism 230 is used for switching positions of the first channel 315, the second channel 316, and the communication channel 313 relative to the first fan 210 and the second fan 220 to switch the first communication state and the second communication state. In the first communication state, the air outlet side of the first fan 210 communicates with the air inlet side of the second fan 220 through the communication channel 313. In the second communication state, the first passage 315 and the second passage 316 are disposed such that the air intake side of the first blower 210 and the air intake side of the second blower 220 are independent of each other, and the air outlet side of the first blower 210 and the air outlet side of the second blower 220 are independent of each other. Alternatively, the switching may be performed manually or electrically, so that the positions of the first passage 315, the second passage 316, and the communication passage 313 are changed while the positions of the first fan 210 and the second fan 220 remain unchanged, thereby switching the first communication state and the second communication state.

Further, the switching mechanism 230 includes a switching element 31 and a housing 32. The first channel 315, the second channel 316 and the communication channel 313 are opened in the switching element 31. The first fan 210 and the second fan 220 are connected to the housing 32, the switching element 31 is movably connected to the housing 32, and the switching element 31 is movable relative to the housing 32 to change the positions of the first passage 315, the second passage 316, and the communication passage 313 relative to the first fan 210 and the second fan 220.

The fan assembly 200 may take a variety of forms, two of which are exemplified below:

1. first exemplary configuration of fan assembly:

as shown in fig. 2, the switching mechanism 230 is located between the first fan 210 and the second fan 220, and the first fan 210 and the second fan 220 may be connected to the left and right sides of the switching mechanism 230, respectively, for example.

As shown in fig. 3, the fan assembly 200 includes a first air inlet duct 240, a second air inlet duct 250, a first air outlet duct 260, and a second air outlet duct 270. The first air inlet duct 240 and the first air outlet duct 260 are connected between the first blower 210 and the housing 32. Specifically, the first air inlet pipe 240 communicates with the air inlet side of the first fan 210 and the housing 32. The first air outlet pipe 260 communicates with the air outlet side of the first fan 210 and the housing 32. The air flow between the first fan 210 and the switching mechanism 230 can be achieved through the first air inlet duct 240 and the first air outlet duct 260. The second air inlet duct 250 and the second air outlet duct 270 are connected between the second blower 220 and the housing 32. Specifically, the second air inlet duct 250 communicates with the air inlet side of the second blower 220 and the housing 32. The second air outlet pipe 270 communicates with the air outlet side of the second fan 220 and the housing 32. The second air inlet duct 250 and the second air outlet duct 270 enable the air flow between the second fan 220 and the switching element 31.

As shown in fig. 3, the first channel 315 is an air inlet channel 311, the second channel 316 is an air outlet channel 312, and the housing 32 has an air inlet 322 communicating with the air inlet channel 311 and an air outlet 323 communicating with the air outlet channel 312. The air inlet 322 and the air outlet 323 are respectively disposed at opposite ends of the housing 32.

As shown in fig. 3, the housing 32 may further be provided with a first air inlet connection port 324, a second air inlet connection port 325, a first air outlet connection port 326, and a second air outlet connection port 327, which are spaced apart from the air inlet 322 and the air outlet 323. Specifically, the first air inlet connection port 324 and the second air inlet connection port 325 are disposed opposite to each other on two sides of the housing 32. The first air outlet connection port 326 and the second air outlet connection port 327 are disposed opposite to each other on two sides of the housing 32. The first air outlet connection port 326 is arranged at the same side as the first air inlet connection port 324, and the second air outlet connection port 327 is arranged at the same side as the second air inlet connection port 325. Optionally, the first air inlet connection port 324 is communicated with the air inlet side of the first fan 210, the second air inlet connection port 325 is communicated with the air inlet side of the second fan 220, the first air outlet connection port 326 is communicated with the air outlet side of the first fan 210, and the second air outlet connection port 327 is communicated with the air outlet side of the second fan 220.

Optionally, the switching mechanism 230 is configured to switch positions of the first channel 315, the second channel 316, and the communication channel 313 relative to the first air inlet connection port 324, the second air inlet connection port 325, the first air outlet connection port 326, and the second air outlet connection port 327. In the first communication state, the first channel 315 communicates with the first air inlet connection port 324, the second channel 316 communicates with the second air outlet connection port 327, and the communication channel 313 communicates with the first air outlet connection port 326 and the second air inlet connection port 325. In the second communication state, the first channel 315 communicates with the first air inlet connection port 324 and the second air inlet connection port 325, and the second channel 316 communicates with the first air outlet connection port 326 and the second air outlet connection port 327.

Alternatively, as shown in fig. 3, the housing 32 is provided with a receiving cavity 321, and the housing 32 may include an upper housing 33 and a lower housing 34. The fan assembly 200 is shown in a schematic exploded view, and it should be understood that the housing cavity 321 may be formed when the upper housing 33 and the lower housing 34 are connected in a covering manner. The air inlet 322 and the air outlet 323 are respectively disposed at opposite ends of the housing 32. The air outlet 323 may be disposed on the upper housing 33 and communicate with the accommodating cavity 321. The air inlet 322 may be formed in the lower case 34 and communicate with the accommodating chamber 321.

Further, the first air inlet connection port 324 and the second air inlet connection port 325 may be disposed opposite to each other on two sides of the lower housing 34. The first air outlet connection port 326 and the second air outlet connection port 327 are disposed opposite to each other on both sides of the upper housing 33.

Specifically, the first air inlet pipe 240 is connected between the first fan 210 and the housing 32, and communicates the air inlet side of the first fan 210 with the first air inlet connection port 324. The second air inlet pipe 250 is connected between the second fan 220 and the housing 32, and communicates the air inlet side of the second fan 220 with the second air inlet connection port 325. The first air outlet pipe 260 is connected between the first fan 210 and the housing 32, and communicates the air outlet side of the first fan 210 with the first air outlet connection port 326. The second air outlet pipe 270 is connected between the second fan 220 and the housing 32, and communicates the air outlet side of the second fan 220 with the second air outlet connection port 327.

As shown in fig. 3, the switching element 31 is rotatably connected to the housing 32, and the switching element 31 can rotate relative to the housing 32. For example, the switching element 31 is provided in a cylindrical shape. The shape of the receiving cavity 321 matches the shape of the switching element 31. The switching member 31 is rotatably provided in the accommodation chamber 321 so as to be rotatable with respect to the housing 32.

As shown in fig. 3, the switching element 31 further includes a limiting post 314, the housing 32 is provided with a limiting hole 328, the limiting post 314 is disposed through the limiting hole 328, and the limiting hole 328 is used for limiting the sliding of the limiting post 314 between the first position and the second position. Specifically, during rotation of the switching element 31 relative to the housing 32, the limit post 314 slidably slides in the first and second positions of the limit aperture 328. For example, the limiting aperture 328 is an arcuate strip aperture. When the limiting post 314 is located at the first position, the switching mechanism 230 is in the first communication state, and when the limiting post 314 is located at the second position, the switching mechanism 230 is in the second communication state. Alternatively, the switch of the stopper 314 between the first position and the second position may be manually driven or may be motor driven.

As shown in fig. 4, the housing 32 is provided with a plurality of connection posts 317 provided at intervals, the plurality of connection posts 317 being for fixed connection with the apparatus body 100 of the cleaning apparatus 1, for example, the plurality of connection posts 317 being detachably connected with the cleaning apparatus 1. For example, the plurality of connection posts 317 are disposed on the lower housing 34 and extend away from the upper housing 33. The number of the connection posts 317 is, for example, one. The connection column 317 is adopted to connect the components, so that the disassembly and the assembly are convenient, the assembly time in the actual production process is saved, and the disassembly and the maintenance are also convenient.

As shown in fig. 5, the air inlet channel 311, the air outlet channel 312 and the communication channel 313 are opened in the switching element 31. Alternatively, the switching element 31 rotates relative to the housing 32 to switch the positions of the air inlet channel 311, the air outlet channel 312, and the communication channel 313 relative to the first fan 210 and the second fan 220, thereby switching the first communication state and the second communication state. During the rotation of the switching element 31 relative to the housing 32, the air inlet 322 is communicated with the air inlet channel 311, and the air outlet 323 is communicated with the air outlet channel 312, so that the integrity and smoothness of the airflow passage in the fan assembly 200 are ensured.

Specifically, the air inlet channel 311 and the air outlet channel 312 are respectively disposed on opposite sides of the switching element 31, the communication channel 313 is disposed inside the switching mechanism 230 in an "S" shape, and the air inlet channel 311, the air outlet channel 312 and the communication channel 313 are spaced from each other and are not communicated with each other. The air inlet 322 and the air outlet 323 are formed at two opposite ends of the housing 32 and are respectively communicated with the accommodating cavity 321.

Exemplary configurations of the air inlet channel 311, the air outlet channel 312, and the communication channel 313 of the first exemplary configuration of the fan assembly 200 are described below.

As shown in fig. 5, the air intake passage 311 may have an air intake passage inlet 3111, a first air intake passage outlet 3112, a second air intake passage outlet 3113, and a third air intake passage outlet 3114. The first inlet channel outlet 3112, the second inlet channel outlet 3113 and the third inlet channel outlet 3114 are respectively connected to the inlet channel inlet 3111, and the inlet channel inlet 3111 is connected to the air inlet 322.

The air outlet channel 312 may have an air outlet channel outlet 3121, a first air outlet channel inlet 3122, a second air outlet channel inlet 3123, and a third air outlet channel inlet 3124 that communicate with each other through the inside of the air outlet channel 312. The air outlet channel outlet 3121 communicates with the air outlet 323. The first air outlet channel inlet 3122, the second air outlet channel inlet 3123, and the third air outlet channel inlet 3124 are respectively communicated with the air outlet channel outlet 3121, and the air outlet channel outlet 3121 is communicated with the air outlet 323.

Specifically, the air inlet channel inlet 3111 and the air outlet channel outlet 3121 are disposed opposite to each other at both ends of the switching element 31, and the air inlet channel inlet 3111, the air outlet channel outlet 3121, the air inlet 322 and the air outlet 323 are coaxially disposed on the rotation axis of the switching element 31.

The communication passage 313 may have a first communication port 3131 and a second communication port 3132 that communicate with each other via the inside of the communication passage 313.

As shown in fig. 5 and 6, the first air intake passage outlet 3112, the second air intake passage outlet 3113 and the third air intake passage outlet 3114 are disposed opposite to each other on the outer peripheral surface of the switching element 31, and the third air intake passage outlet 3114 is located between the first air intake passage outlet 3112 and the second air intake passage outlet 3113.

As shown in fig. 5 and 7, the first air outlet channel inlet 3122, the second air outlet channel inlet 3123 and the third air outlet channel inlet 3124 are disposed opposite to each other on the outer circumferential surface of the switching element 31, and the third air outlet channel inlet 3124 is located between the first air outlet channel inlet 3122 and the second air outlet channel inlet 3123.

As shown in fig. 5 to 8, the first communication port 3131 and the second communication port 3132 are provided offset from each other on the outer peripheral surface of the switching element 31. The channel between the first communication port 3131 and the second communication port 3132 may be, for example, in an "S" shape, where the first communication port 3131 is closer to the air outlet channel 312 than the second communication port 3132, and the first communication port 3131 is opposite to the third air outlet channel inlet 3124. The second communication port 3132 is closer to the air intake passage 311 than the first communication port 3131, and the second communication port 3132 is disposed opposite to the third air intake passage outlet 3114.

Based on the above description, the following exemplarily describes the switching of the first communication state and the second communication state of the first exemplary structure of the blower assembly 200.

As shown in fig. 9 and 10, the switching mechanism 230 may switch positions of the air inlet channel 311, the air outlet channel 312, and the communication channel 313 with respect to the first fan 210 and the second fan 220 to switch the first communication state and the second communication state. Further, the switching mechanism 230 is configured to switch positions of the air inlet channel 311, the air outlet channel 312, and the communication channel 313 relative to the first air inlet connector 324, the second air inlet connector 325, the first air outlet connector 326, and the second air outlet connector 327, so as to switch between the first communication state and the second communication state. Further, the switching mechanism 230 can switch the positions of the air inlet channel 311, the air outlet channel 312, and the communication channel 313 with respect to the first air inlet connector 324, the second air inlet connector 325, the first air outlet connector 326, and the second air outlet connector 327 by rotating, thereby switching the first communication state and the second communication state.

(1) First communication state

As shown in fig. 9, in the first communication state, the air intake side of the first fan 210 communicates with the third air intake passage outlet 3114 to communicate with the air intake 322. The first communication port 3131 communicates with the air outlet side of the first fan 210, and the second communication port 3132 communicates with the air inlet side of the second fan 220. The air outlet side of the second fan 220 communicates with the third air outlet passage inlet 3124 to communicate with the air outlet 323. In this manner, the air flowing into the fan assembly 200 from the air inlet 322 sequentially passes through the air inlet channel 311, the air inlet side of the first fan 210, the air outlet side of the first fan 210, the communication channel 313, the air inlet side of the second fan 220, the air outlet side of the second fan 220, and the air outlet channel 312, and finally flows out from the air outlet 323.

In the first communication state, the air flow entering the fan assembly 200 from the air inlet 322 sequentially passes through the first fan 210 and the second fan 220, and at this time, the first fan 210 and the second fan 220 are sequentially connected end to end, and the fans are in series operation. The high speed rotation of the fans provides centrifugal force to the air inside the fans, thus creating static pressure, and when the two fans are operated in series, provides greater centrifugal force to the air in the same air flow channel, thus providing greater static pressure to the cleaning device 1. When the first fan 210 and the second fan 220 are operated in series, a greater centrifugal force is provided to the air in the same air flow path, thereby providing a greater static pressure to the cleaning apparatus 1.

Specifically, in the first communication state, the air inlet channel 311 communicates with the first air inlet connection port 324, the air outlet channel 312 communicates with the second air outlet connection port 327, and the communication channel 313 communicates with the first air outlet connection port 326 and the second air inlet connection port 325.

Further, in the first communicating state, the switching member 31 rotates relative to the housing 32 such that the third air intake passage outlet 3114 communicates with the first air intake connection port 324, and the housing 32 blocks the first air intake passage outlet 3112 and the second air intake passage outlet 3113. The third outlet channel inlet 3124 communicates with the second outlet connection port 327, and the housing 32 blocks the first outlet channel inlet and the second outlet channel inlet 3123. The first communication port 3131 communicates with the first air outlet connection port 326, and the second communication port 3132 communicates with the second air inlet connection port 325.

Based on the foregoing, the operation principle of the first exemplary structure of the blower assembly 200 in the first communication state is exemplarily described as follows:

the first fan 210 and the second fan 220 operate in series.

As shown in fig. 9, the blower assembly 200 is in a first communication state. The switching element 31 rotates relative to the housing 32 through automatic or manual operation, after the limit post 314 slides to the first position of the limit hole 328 along with the rotation of the switching element 31, the air inlet 322 is communicated with the air inlet channel inlet 3111, the air inlet channel inlet 3111 is communicated with the third air inlet channel outlet 3114 through the air inlet channel 311, the third air inlet channel outlet 3114 is communicated with the first air inlet connection port 324, the first air inlet connection port 324 is communicated with the air inlet side of the first fan 210 through the first air inlet pipe 240, the air outlet side of the first fan 210 is communicated with the first air outlet connection port 326 through the first air outlet pipe 260, the first air outlet connection port 326 is communicated with the first communication port 3131, the first communication port 3131 is communicated with the second communication port 3132 through the communication channel 313, the second communication port 3132 is communicated with the second air inlet connection port 325, the second air inlet connection port 325 is communicated with the air inlet side of the second fan 220 through the second air inlet pipe 250, the air outlet side of the second fan 220 is communicated with the second air outlet connection port 270, the second air outlet port 312327 is communicated with the third air outlet channel inlet 3124, and the third air outlet channel inlet 3124 is communicated with the air outlet port 3124 through the air outlet channel outlet port 312 1. Wherein the first inlet air channel outlet 3112 and the second inlet air channel outlet 3113 are blocked by the housing 32, and the first outlet air channel inlet 3122 and the second outlet air channel inlet 3123 are blocked by the housing 32. In this way, the air inlet channel 311, the first air inlet duct 240, the first fan 210, the first air outlet duct 260, the communication channel 313, the second air inlet duct 250, the second fan 220, the second air outlet duct 270, and the air outlet channel 312 form a passage.

In the first communication state, the air flow generated by the first fan 210 and the second fan 220 enters the fan assembly 200 from the air inlet 322, flows to the air inlet side of the first fan 210 through the air inlet channel 311 and the first air inlet pipe 240 in sequence, flows to the air inlet side of the second fan 220 through the first air outlet pipe 260, the communication channel 313 and the second air inlet pipe 250 in sequence after flowing out from the air outlet side of the second fan 220, flows through the second air outlet pipe 270 and the air outlet channel 312 in sequence, and flows out of the fan assembly 200 from the air outlet 323. The first fan 210 and the second fan 220 thus operate in series, providing a greater static pressure for the cleaning apparatus 1.

(2) Second communication state

As shown, in the second communication state, the air intake side of the first fan 210 communicates with the first air intake passage outlet 3112, and the air intake side of the second fan 220 communicates with the second air intake passage outlet 3113 to communicate with the air inlets 322, respectively. The air outlet side of the first fan 210 communicates with the first air outlet passage inlet 3122, and the air outlet side of the second fan 220 communicates with the second air outlet passage inlet 3123 to communicate with the air outlets 323, respectively. In this way, the airflow flowing into the fan assembly 200 from the air inlet 322 is divided into two parts, one part sequentially passes through the air inlet channel 311, the air inlet side of the first fan 210, the air outlet side of the first fan 210 and the air outlet channel 312, the other part sequentially passes through the air inlet channel 311, the air inlet side of the second fan 220, the air outlet side of the second fan 220 and the air outlet channel 312, and finally both parts flow out from the air outlet 323.

In the second communication state, the air flow entering the fan assembly 200 from the air inlet 322 is divided into two parts, and passes through the first fan 210 and the second fan 220 respectively at the same time, at this time, the first fan 210 and the second fan 220 are communicated head to head, and at the same time, the tail is also communicated, and the fans are in parallel operation. The air volume of a single fan is the air volume flowing through the fan per unit time, and when two fans are operated in parallel, the air volume flowing through the fan assembly 200 per unit time is increased, thereby providing a greater air volume for the cleaning apparatus 1.

Specifically, in the second communication state, the air inlet channel 311 communicates with the first air inlet connection port 324 and the second air inlet connection port 325, respectively, and the air outlet channel 312 communicates with the first air outlet connection port 326 and the second air outlet connection port 327, respectively.

Further, in the second communication state, the switching element 31 rotates relative to the housing 32 such that the first air outlet channel inlet 3122 communicates with the first air outlet connection port 326, the second air outlet channel inlet 3123 communicates with the second air outlet connection port 327, and the housing 32 blocks the third air outlet channel inlet 3124. The first inlet channel outlet 3112 communicates with the first inlet connector 324, the second inlet channel outlet 3113 communicates with the second inlet connector 325, and the housing 32 blocks the third inlet channel outlet. The housing 32 blocks the first communication port 3131 and the second communication port 3132.

Based on the foregoing, the operation principle of the first exemplary structure of the blower assembly 200 in the second communication state is exemplarily described as follows:

the first fan 210 and the second fan 220 operate in parallel.

As shown in fig. 10, the blower assembly 200 is in a second communication state. The switching element 31 is rotated relative to the housing 32 by automatic or manual operation, after the limit post 314 slides to the second position of the limit hole 328 along with the rotation of the switching element 31, the air inlet 322 is communicated with the air inlet channel inlet 3111, the air inlet channel inlet 3111 is communicated with the first air inlet channel outlet 3112 through the air inlet channel 311, the first air inlet channel outlet 3112 is communicated with the first air inlet connection port 324, the first air inlet connection port 324 is communicated with the air inlet side of the first fan 210 through the first air inlet pipe 240, the air outlet side of the first fan 210 is communicated with the first air outlet connection port 326 through the first air outlet pipe 260, the first air outlet connection port 326 is communicated with the first air outlet channel inlet 3122, the first air outlet channel inlet 3122 is communicated with the air outlet channel outlet 3121 through the air outlet channel 312, the air outlet channel outlet 3121 is communicated with the air outlet 323, the air inlet channel inlet 3111 is communicated with the second air inlet channel outlet 3113 through the air inlet channel 311, the second air inlet channel outlet 3113 is communicated with the second air inlet connection port 325, the second air inlet connection port 325 is communicated with the air inlet side of the second fan 220 through the second air inlet pipe 250, the air outlet side of the second air outlet 220 is communicated with the second air outlet side of the second air outlet channel outlet 270, the second air outlet port 327 is communicated with the second air outlet channel inlet port 327 3 is communicated with the second air outlet channel inlet port 312. Wherein, the outlet of the third air inlet channel 311 and the inlet of the third air outlet channel 312 are blocked by the housing 32, and the first communication port 3131 and the second communication port 3132 are blocked by the housing 32. Thus, the air inlet channel 311, the first air inlet duct 240, the first fan 210, the first air outlet duct 260, and the air outlet channel 312 form a passage, and the air inlet channel 311, the second air inlet duct 250, the second fan 220, the second air outlet duct 270, and the air outlet channel 312 form a passage.

In the second communication state, the air flow generated by the first fan 210 enters the fan assembly 200 from the air inlet 322, flows to the air inlet side of the first fan 210 through the air inlet channel 311 and the first air inlet pipe 240 in sequence, flows out from the air outlet side of the first fan 210, sequentially passes through the first air outlet pipe 260 and the air outlet channel 312, and flows out of the fan assembly 200 from the air outlet 323. The air flow generated by the second fan 220 enters the fan assembly 200 from the air inlet 322, flows to the air inlet side of the second fan 220 sequentially through the air inlet channel 311 and the second air inlet pipe 250, flows out from the air outlet side of the second fan 220, sequentially passes through the second air outlet pipe 270 and the air outlet channel 312, and flows out of the fan assembly 200 from the air outlet 323. The first fan 210 and the second fan 220 thus operate in parallel, providing a greater air volume for the cleaning device 1.

2. Second exemplary configuration of fan assembly:

as shown in fig. 11, the switching mechanism 230 is located between the first fan 210 and the second fan 220, and the second fan 220 and the first fan 210 may be connected to the upper and lower ends of the switching mechanism 230, respectively, for example.

As shown in fig. 12, the switching mechanism 230 is provided with a housing cavity 321, and the housing 32 includes a first housing 35 and a second housing 36. The fan assembly 200 is shown in a schematic, disassembled configuration, and it should be understood that the housing cavity 321 may be formed when the first housing 35 and the second housing 36 are connected in a covering manner.

Further, the switching element 31 is disposed in the accommodating cavity 321, and the switching element 31 is slidably connected to the housing 32 and can translate relative to the housing 32. For example, the accommodating cavity 321 and the switching element 31 are both disposed in a cube, and the volume of the accommodating cavity 321 is larger than the volume of the switching element 31, so that the switching element 31 slides in the accommodating cavity 321.

As shown in fig. 12, the housing 32 is provided with a first air inlet connection port 324, a second air inlet connection port 325, a first air outlet connection port 326, and a second air outlet connection port 327 which are provided at intervals. The first air inlet connection port 324, the second air inlet connection port 325, the first air outlet connection port 326 and the second air outlet connection port 327 are respectively communicated with the accommodating cavity 321, the first air inlet connection port 324 and the second air inlet connection port 325 are arranged on the same side face of the shell 32 at intervals, and the first air outlet connection port 326 and the second air outlet connection port 327 are arranged on the same side face of the shell 32 at intervals. The first air inlet connection port 324 is communicated with the air outlet side of the first fan 210, the second air inlet connection port 325 is used for air inlet, the first air outlet connection port 326 is used for air outlet, and the second air outlet connection port 327 is communicated with the air inlet side of the second fan 220.

As shown in fig. 12, the blower assembly 200 further includes a connection tube assembly 50. The connection pipe assembly 50 includes a branch pipe 510, a first air pipe 520, and a second air pipe 530, and the branch pipe 510, the first air pipe 520, and the second air pipe 530 are connected to the housing 32. The branching pipe 510 has a first nozzle 511, a second nozzle 512, and a third nozzle 513, the second nozzle 512 and the third nozzle 513 being respectively communicated with the first nozzle 511, the second nozzle 512 being communicated with the air intake side of the first fan 210, the third nozzle 513 being communicated with the second air intake connection port 325. The air outlet side of the first fan 210 is communicated with the first air inlet connection port 324 through the first air pipe 520, and the air inlet side of the second fan 220 is communicated with the second air outlet connection port 327 through the second air pipe 530. The air flow between the first fan 210 and the switching element 31 can be achieved by the first air duct 520, and the air flow between the second fan 220 and the switching element 31 can be achieved by the second air duct 530.

Optionally, the switching mechanism 230 is configured to switch positions of the first channel 315, the second channel 316, and the communication channel 313 relative to the first air inlet connection port 324, the second air inlet connection port 325, the first air outlet connection port 326, and the second air outlet connection port 327. In the first communication state, the communication channel 313 communicates the first air inlet connection port 324 and the second air outlet connection port 327. In the second communication state, the first channel 315 communicates with the first air inlet connection port 324 and the first air outlet connection port 326, and the second channel 316 communicates with the second air inlet connection port 325 and the second air outlet connection port 327, respectively.

As shown in fig. 12 and 13, the switching element 31 further includes a limiting post 314, the housing 32 is provided with a limiting hole 328, the limiting post 314 is disposed through the limiting hole 328, and the limiting hole 328 is used for limiting the sliding of the limiting post 314 between the first position and the second position. Specifically, during rotation of the switching element 31 relative to the housing 32, the limit post 314 slidably slides in the first and second positions of the limit aperture 328. For example, the limiting aperture 328 is a bar-shaped aperture. For example, the first housing 35 and the second housing 36 are each provided with a limiting hole 328. When the limiting post 314 is located at the first position, the switching mechanism 230 is in the first communication state, and when the limiting post 314 is located at the second position, the switching mechanism 230 is in the second communication state. Alternatively, the switch of the stopper 314 between the first position and the second position may be manually driven or may be motor driven.

As shown in fig. 14, the first channel 315, the second channel 316, and the communication channel 313 are opened in the switching element 31. Alternatively, the switching member 31 slides with respect to the housing 32 to switch the positions of the first passage 315, the second passage 316, and the communication passage 313 with respect to the first fan 210 and the second fan 220, thereby switching the first communication state and the second communication state. In the first communication state, the communication channel 313 is located between the first fan 210 and the second fan 220, and the communication channel 313 is respectively communicated with the air outlet side of the first fan 210 and the air inlet side of the second fan 220. In the second communication state, the first channel 315 is located upstream of the first fan 210, the first channel 315 is in communication with the air outlet side of the first fan 210, the second channel 316 is located downstream of the second fan 220, and the second channel 316 is in communication with the air inlet side of the second fan 220.

Specifically, the first channel 315 and the second channel 316 are disposed on two sides of the switching element 31, the communication channel 313 is disposed in the switching mechanism 230 in an "S" shape, and the first channel 315, the second channel 316 and the communication channel 313 are spaced apart from each other and are not communicated with each other.

Exemplary configurations of the second exemplary configuration of the fan assembly 200 the first channel 315, the second channel 316, and the communication channel 313 are described below.

As shown in fig. 14, the first passage 315 has a first passage inlet 3151 and a first passage outlet 3152 communicating with each other, the second passage 316 has a second passage inlet 3161 and a second passage outlet 3162 communicating with each other, and the communication passage 313 has a communication passage inlet 3133 and a communication passage outlet 3134 communicating with each other.

Specifically, in the first communication state, the housing 32 blocks the first channel inlet 3151 and the first channel outlet 3152 and blocks the second channel inlet 3161 and the second channel outlet 3162, the communication channel inlet 3133 communicates with the air outlet side of the first fan 210, and the communication channel outlet 3134 communicates with the air inlet side of the second fan 220. In the second communication state, the first passage inlet 3151 communicates with the air intake side of the first blower 210, the second passage outlet 3162 communicates with the air intake side of the second blower 220, and the housing 32 blocks the communication passage inlet 3133 and the communication passage outlet 3134.

As shown in fig. 14 and 15, the first passage inlet 3151 and the first passage outlet 3152 are provided opposite to each other on both side surfaces of the switching element 31.

As shown in fig. 14 and 16, the second channel inlet 3161 and the second channel outlet 3162 are disposed opposite to each other on both side surfaces of the switching element 31.

As shown in fig. 14 and 17, the communication passage inlet 3133 and the communication passage outlet 3134 are provided opposite to each other on both side surfaces of the switching element 31.

As shown in fig. 14 to 17, the arrangement direction of the communication passage inlet 3133 and the first passage inlet 3151 is parallel to the translational direction of the switching element 31 with respect to the housing 32, and the arrangement direction of the communication passage outlet 3134 and the second passage outlet 3162 is parallel to the translational direction of the switching element 31 with respect to the housing 32.

Based on the above description, the switching of the first communication state and the second communication state of the second exemplary structure of the blower assembly 200 is exemplarily described below.

As shown in fig. 18 and 19, the switching mechanism 230 may switch the positions of the first passage 315, the second passage 316, and the communication passage 313 with respect to the first fan 210 and the second fan 220 to switch the first communication state and the second communication state. Further, the switching mechanism 230 is configured to switch positions of the first channel 315, the second channel 316, and the communication channel 313 relative to the first air inlet connector 324, the second air inlet connector 325, the first air outlet connector 326, and the second air outlet connector 327, so as to switch between the first communication state and the second communication state. Further, the switching mechanism 230 can switch the positions of the first channel 315, the second channel 316, and the communication channel 313 with respect to the first air inlet connection port 324, the second air inlet connection port 325, the first air outlet connection port 326, and the second air outlet connection port 327 by sliding, thereby switching the first communication state and the second communication state.

(1) First communication state

As shown in fig. 18, in the first communication state, the air intake side of the first fan 210 communicates with the second nozzle 512 to communicate with the first nozzle 511. The communication passage inlet 3133 communicates with the air outlet side of the first fan 210, and the communication passage outlet 3134 communicates with the air inlet side of the second fan 220. In this manner, the air flow flowing into the fan assembly 200 from the first nozzle 511 sequentially passes through the air inlet side of the first fan 210, the air outlet side of the first fan 210, the communication passage 313, and the air inlet side of the second fan 220, and finally flows out from the air outlet side of the second fan 220.

In the first communication state, the air flow entering the fan assembly 200 from the first pipe orifice 511 sequentially passes through the first fan 210 and the second fan 220, and at this time, the first fan 210 and the second fan 220 are sequentially communicated end to end, and the fans are in series operation. The high speed rotation of the fans provides centrifugal force to the air inside the fans, thus creating static pressure, and when the two fans are operated in series, provides greater centrifugal force to the air in the same air flow channel, thus providing greater static pressure to the cleaning device 1. When the first fan 210 and the second fan 220 are operated in series, a greater centrifugal force is provided to the air in the same air flow path, thereby providing a greater static pressure to the cleaning apparatus 1.

Specifically, in the first communication state, the communication passage 313 communicates the second air outlet connection port 327 and the first air inlet connection port 324.

Further, in the first communication state, the switching member 31 slides relative to the housing 32 such that the communication passage inlet 3133 communicates with the first air intake connection port 324, the communication passage outlet 3134 communicates with the second air outlet connection port 327, and the housing 32 blocks the first passage inlet 3151, the first passage outlet 3152, the second passage inlet 3161, and the second passage outlet 3162.

Based on the foregoing, the operation principle of the second exemplary structure of the blower assembly 200 in the first communication state is exemplarily described as follows:

the first fan 210 and the second fan 220 operate in series.

As shown in fig. 18, the blower assembly 200 is in a first communication state. By sliding the switching element 31 relative to the housing 32 through automatic or manual operation, after the limiting post 314 slides to the first position of the limiting hole 328 along with rotation of the switching element 31, the second pipe orifice 512 is communicated with the air inlet side of the first fan 210 to be communicated with the first pipe orifice 511, the air outlet side of the first fan 210 is communicated with the first air inlet connection port 324 through the first air pipe 520, the first air inlet connection port 324 is communicated with the communication channel inlet 3133, the communication channel outlet 3134 is communicated with the second air outlet connection port 327, and the second air outlet connection port 327 is communicated with the air inlet side of the second fan 220. Wherein the first channel inlet 3151, the first channel outlet 3152, the second channel inlet 3161 and the second channel outlet 3162 are blocked by the housing 32. In this way, the diverging duct 510, the first fan 210, the first air duct 520, the communication passage 313, and the second fan 220 form a passage.

In the first communication state, the air flow generated by the first fan 210 and the second fan 220 enters the fan assembly 200 from the first pipe orifice 511, flows to the air inlet side of the first fan 210 through the bifurcation 510, flows out from the air outlet side of the first fan 210, flows to the air inlet side of the second fan 220 through the first air pipe 520 and the communication channel 313 in sequence, and finally flows out from the air outlet side of the second fan 220. The first fan 210 and the second fan 220 thus operate in series, providing a greater static pressure for the cleaning apparatus 1.

(2) Second communication state

As shown in fig. 19, in the second communication state, the air intake side of the first fan 210 communicates with the second nozzle 512 to communicate with the first nozzle 511. The air outlet side of the first fan 210 communicates with the first passage inlet 3151 to communicate with the first passage outlet 3152. The first nozzle 511 communicates with the third nozzle 513 to communicate with the second channel inlet 3161. The air intake side of the second fan 220 communicates with the second channel outlet 3162. As such, the airflow flowing into the fan assembly 200 from the first nozzle 511 is divided into two parts, and one part sequentially passes through the air inlet side of the first fan 210, the air outlet side of the first fan 210, and the first passage 315, and finally flows out from the first passage outlet 3152. The other part sequentially passes through the second channel 316 and the air inlet side of the second fan 220, and finally flows out from the air outlet side of the second fan 220.

In the first communication state, the air flowing into the fan assembly 200 from the first nozzle 511 is divided into two parts, and the air is simultaneously communicated with the first fan 210 and the second fan 220, and the fans are in parallel operation. The air volume of a single fan is the air volume flowing through the fan per unit time, and when two fans are operated in parallel, the air volume flowing through the fan assembly 200 per unit time is increased, thereby providing a greater air volume for the cleaning apparatus 1.

Specifically, in the second communication state, the first channel 315 communicates with the first air inlet connection port 324 and the first air outlet connection port 326, respectively, and the second channel 316 communicates with the second air inlet connection port and the second air outlet connection port 327, respectively.

Further, in the second communication state, the switching member 31 rotates relative to the housing 32 such that the first passage inlet 3151 communicates with the first air inlet connection port 324, and the second passage outlet 3162 communicates with the first air outlet connection port 326. The second channel inlet 3161 communicates with the second air inlet connection port 325, and the second channel outlet 3162 communicates with the second air outlet connection port 327. The housing 32 blocks the communication passage inlet 3133 and the communication passage outlet 3134.

Based on the foregoing, the operation principle of the second exemplary structure of the blower assembly 200 in the second communication state is exemplarily described as follows:

The first fan 210 and the second fan 220 operate in parallel.

As shown in fig. 19, the blower assembly 200 is in the second communication state. The switching element 31 is rotated relative to the housing 32 by automatic or manual operation, after the limit post 314 slides to the second position of the limit hole 328 along with the rotation of the switching element 31, the first nozzle 511 is communicated with the second nozzle 512, the second nozzle 512 is communicated with the air inlet side of the first fan 210, the air outlet side of the first fan 210 is communicated with the first air inlet connection port 324 through the first air pipe 520, the first air inlet connection port 324 is communicated with the first channel inlet 3151, the first channel outlet 3152 is communicated with the first air outlet connection port 326, the first nozzle 511 is communicated with the third nozzle 513, the third nozzle 513 is communicated with the second air inlet connection port 325 through the second air pipe 530, the second air inlet connection port 325 is communicated with the second channel inlet 3161, the second channel outlet 3162 is communicated with the second air outlet connection port 327, and the second air outlet connection port 327 is communicated with the air inlet side of the second fan 220. Wherein the communication passage inlet 3133 and the communication passage outlet 3134 are blocked by the housing 32. Thus, the branch pipe 510, the first fan 210, the first duct 520, and the first duct 315 form a passage, and the branch pipe 510, the second duct 530, the second duct 316, and the second fan 220 form a passage.

In the second communication state, the air flow generated by the first fan 210 enters the fan assembly 200 from the first nozzle 511, flows into the air inlet side of the first fan 210, flows out from the air outlet side of the first fan 210, sequentially passes through the first air duct 520 and the first channel 315, and flows out of the fan assembly 200 from the second air outlet connection port 327. The air flow generated by the second fan 220 enters the fan assembly 200 from the first nozzle 511, flows through the second air duct 530 and the second channel 316 in sequence to the air intake side of the second fan 220, and finally flows out of the fan assembly 200 from the air outlet side of the second fan 220. The first fan 210 and the second fan 220 thus operate in parallel, providing a greater air volume for the cleaning device 1.

In summary, in the above embodiments, the switching mechanism 230 is provided to switch the positions of the first channel, the second channel and the communication channel 313 relative to the first fan 210 and the second fan 220, so as to switch the communication state between the first fan 210 and the second fan 220, so that the switching of the working modes between the first fan 210 and the second fan 220 can be quickly and effectively implemented, so that a larger static pressure can be provided in the first communication state, and a larger air volume can be provided in the second communication state, so that the cleaning device 1 can adapt to more cleaning situations, and the cleaning efficiency is improved.

Further, the switching mechanism 230 is further provided with the first air inlet connector 324, the second air inlet connector 325, the first air outlet connector 326 and the second air outlet connector 327, and is used for switching the positions of the first channel, the second channel and the communication channel 313 relative to the first air inlet connector 324, the second air inlet connector 325, the first air outlet connector 326 and the second air outlet connector 327, so that the switching between the first communication state and the second communication state is more stable and faster.

Further, the switching element 31 is disposed in the casing 32, so that on one hand, stability of the structure can be improved, on the other hand, the casing 32 forming the accommodating cavity 321 is beneficial to forming and sealing of each air duct in the first communication state and the second communication state, air leakage is reduced, power loss of the fan can be reduced, and further common walking efficiency is improved.

Further, through setting up spacing hole 328 that is located casing 32 and the spacing post 314 that is located switching element 31, wherein spacing post 314 slidably inlays and locates spacing hole 328 to realize that spacing post 314 slides between the first position and the second position in spacing hole 328, and then switch first intercommunication state and second intercommunication state, simple structure, convenient operation effectively improves switching efficiency.

The foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims (16)

1. A fan assembly, comprising:

a first fan and a second fan;

the switching mechanism is connected with the first fan and the second fan and can be switched between a first communication state and a second communication state;

the switching mechanism is arranged to enable the air outlet side of the first fan and the air inlet side of the second fan to be communicated in the first communication state so as to form a serial air path between the first fan and the second fan; and in the second communication state, the air inlet side of the first fan and the air inlet side of the second fan are enabled to be independent of each other for air inlet, and the air outlet side of the first fan and the air outlet side of the second fan are enabled to be independent of each other for air outlet, so that the first fan and the second fan form a parallel air path.

2. The fan assembly of claim 1 wherein the fan assembly comprises a fan assembly,

The switching mechanism has a communication passage, a first passage, and a second passage, which are independent of each other;

in the first communication state, the air outlet side of the first fan is communicated with the air inlet side of the second fan through the communication channel;

in the second communication state, the first channel and the second channel are arranged so that the air inlet side of the first fan and the air inlet side of the second fan are independent of each other, and the air outlet side of the first fan and the air outlet side of the second fan are independent of each other.

3. The fan assembly of claim 2 wherein the fan assembly comprises,

the switching mechanism is used for switching positions of the first channel, the second channel and the communication channel relative to the first fan and the second fan so as to switch the first communication state and the second communication state.

4. The fan assembly of claim 3 wherein,

the switching mechanism comprises a switching element and a housing; the first channel, the second channel and the communication channel are arranged on the switching element; the first fan and the second fan are connected with the shell; the switching element is movably connected with the housing, and the switching element is movable relative to the housing to change positions of the first channel, the second channel, and the communication channel relative to the first fan and the second fan.

5. The fan assembly of claim 4 wherein the fan assembly comprises,

the switching element is rotatably connected to the housing, and the switching element can rotate relative to the housing.

6. The fan assembly of claim 5 wherein the fan assembly comprises,

the first channel is an air inlet channel, and the second channel is an air outlet channel; the shell is provided with an air inlet communicated with the air inlet channel and an air outlet communicated with the air outlet channel;

in the first communication state, the air inlet side of the first fan is communicated with the air inlet channel so as to be communicated with the air inlet; the air outlet side of the first fan is communicated with the air inlet side of the second fan through the communication channel, and the air outlet side of the second fan is communicated with the air outlet channel so as to be communicated with the air outlet;

in the second communication state, the air inlet side of the first fan and the air inlet side of the second fan are respectively communicated with the air inlet channel so as to be respectively communicated with the air inlets; the air outlet side of the first fan and the air outlet side of the second fan are respectively communicated with the air outlet channel so as to be respectively communicated with the air outlet.

7. The fan assembly of claim 6 wherein the fan assembly comprises,

The air inlet channel is provided with an air inlet channel inlet, a first air inlet channel outlet, a second air inlet channel outlet and a third air inlet channel outlet, the first air inlet channel outlet, the second air inlet channel outlet and the third air inlet channel outlet are respectively communicated with the air inlet channel inlet, and the air inlet channel inlet is communicated with the air inlet; in the first communication state, the outlet of the third air inlet channel is communicated with the air inlet side of the first fan; in the second communication state, the first air inlet channel outlet is communicated with the air inlet side of the first fan, and the second air inlet channel outlet is communicated with the air inlet side of the second fan;

the air outlet channel is provided with an air outlet channel outlet, a first air outlet channel inlet, a second air outlet channel inlet and a third air outlet channel inlet, the first air outlet channel inlet, the second air outlet channel inlet and the third air outlet channel inlet are respectively communicated with the air outlet channel outlet, and the air outlet channel outlet is communicated with the air outlet; in the first communication state, the inlet of the third air outlet channel is communicated with the air outlet side of the second fan; in the second communication state, the first air outlet channel inlet is communicated with the air outlet side of the first fan, and the second air outlet channel inlet is communicated with the air outlet side of the second fan;

The communication passage has a first communication port and a second communication port that communicate with each other through an inside of the communication passage; in the first communication state, the first communication port is communicated with the air outlet side of the first fan, and the second communication port is communicated with the air inlet side of the second fan.

8. The fan assembly of claim 5 wherein the fan assembly comprises,

the shell is further provided with a first air inlet connector, a second air inlet connector, a first air outlet connector and a second air outlet connector, the first air inlet connector is communicated with the air inlet side of the first fan, the second air inlet connector is communicated with the air inlet side of the second fan, the first air outlet connector is communicated with the air outlet side of the first fan, and the second air outlet connector is communicated with the air outlet side of the second fan;

in the first communication state, the first channel is communicated with the first air inlet connector, the second channel is communicated with the second air outlet connector, and the communication channel is communicated with the first air outlet connector and the second air inlet connector; in the second communication state, the first channel is respectively communicated with the first air inlet connector and the second air inlet connector, and the second channel is communicated with the first air outlet connector and the second air outlet connector.

9. The fan assembly of claim 4 wherein the fan assembly comprises,

the switching element is slidably connected to the housing, the switching element being translatable relative to the housing.

10. The fan assembly of claim 9 wherein the fan assembly comprises,

in the second communication state, the first channel is positioned at the upstream of the first fan, and the first channel is communicated with the air outlet side of the first fan; the second channel is positioned at the downstream of the second fan and is communicated with the air inlet side of the second fan.

11. The fan assembly of claim 9 wherein the fan assembly comprises,

the shell is provided with a first air inlet connector, a second air inlet connector, a first air outlet connector and a second air outlet connector which are arranged at intervals, the first air inlet connector is communicated with the air outlet side of the first fan, the second air inlet connector is used for air inlet, and the second air outlet connector is communicated with the air inlet side of the second fan;

in the first communication state, the communication channel is communicated with the first air inlet connection port and the second air outlet connection port; in the second communication state, the first channel is respectively communicated with the first air inlet connector and the first air outlet connector, and the second channel is respectively communicated with the second air inlet connector and the second air outlet connector.

12. The fan assembly of claim 9 wherein the fan assembly comprises,

the first channel is provided with a first channel inlet and a first channel outlet which are communicated with each other; the second channel is provided with a second channel inlet and a second channel outlet which are communicated with each other; the communication channel is provided with a communication channel inlet and a communication channel outlet which are communicated with each other;

in the first communication state, the inlet of the communication channel is communicated with the air outlet side of the first fan, and the outlet of the communication channel is communicated with the air inlet side of the second fan;

and in the second communication state, the first channel inlet is communicated with the air outlet side of the first fan, and the second channel outlet is communicated with the air inlet side of the second fan.

13. The fan assembly of claim 12 wherein the fan assembly comprises,

the arrangement direction of the communication channel inlet and the first channel inlet is parallel to the translation direction of the switching element relative to the shell, and the arrangement direction of the communication channel outlet and the second channel outlet is parallel to the translation direction of the switching element relative to the shell.

14. The fan assembly of any of claims 4-13 wherein,

The switching element further comprises a limiting column, a limiting hole is formed in the shell, the limiting column penetrates through the limiting hole, and the limiting hole is used for limiting the limiting column to slide between a first position and a second position; when the limit column is located at the first position, the switching mechanism is in the first communication state; when the limiting column is located at the second position, the switching mechanism is in the second communication state.

15. The fan assembly of any of claims 1-13 wherein,

the switching mechanism is located between the first fan and the second fan.

16. A cleaning apparatus, comprising:

an apparatus main body;

the blower assembly of any one of claims 1-15, coupled to the apparatus body;

the cleaning module is connected with the equipment main body and is used for cleaning a working surface; and

and the recycling mechanism is arranged on the equipment main body and communicated with the fan assembly, and is used for accommodating garbage collected by the cleaning module.

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