Fan assembly and cleaning equipment

Abstract

The utility model provides a fan assembly and cleaning equipment, and relates to the technical field of fan equipment. The draught fan assembly comprises a draught fan, a shell, a first channel and a second channel, the shell is provided with a flow dividing opening and an air outlet, the flow dividing opening communicates with the draught fan, and the two ends of the first channel and the two ends of the second channel communicate with the flow dividing opening and the air outlet correspondingly. An intersection area is arranged in the shell, the first channel comprises a first air supply section communicating with the intersection area, the first air supply section extends in the first direction, the second channel comprises a second air supply section communicating with the intersection area, the second air supply section extends in the second direction, and the first direction is different from the second direction. The air flow output by the draught fan can form two air flows through the flow dividing opening to enter the first channel and the second channel so as to reduce the flow speed of the air flows, and the two air flows flowing in different directions are conveyed to the intersection area through the first air supply section in the first channel and the second air supply section in the second channel so as to reduce the flow speed of the air flows. Therefore, the two air flows collide to counteract energy, and noise reduction is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fan equipment, in particular to a fan assembly and a cleaning device. BACKGROUND

[0002] Many cleaning devices containing fans will produce noise pollution when running, a large part of which is caused by the wind noise generated by the fan working. In order to reduce the wind noise, the related cleaning device usually adopts the way of lengthening the rear air duct to reduce the resistance and vortex in the air duct, thereby reducing the airflow noise, but it will cause the increase of the volume and cost of the cleaning device. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a fan assembly, which comprises a fan, a shell, a first channel and a second channel, the shell is provided with a shunt port communicating with the fan, the shunt port is respectively communicated with one end of the first channel and one end of the second channel, and the shell is further provided with an air outlet, the other end of the first channel and the other end of the second channel are respectively communicated with the air outlet;

[0004] The shell is internally provided with a confluence area, the first channel comprises a first air supply section communicating with the confluence area, the first air supply section extends along a first direction, the second channel comprises a second air supply section communicating with the confluence area, the second air supply section extends along a second direction, the first direction is different from the second direction, so as to make the airflow entering the confluence area through the first air supply section and the airflow entering the confluence area through the second air supply section collide in the confluence area, and the collided airflow is discharged from the shell through the air outlet.

[0005] The embodiment of the present application further provides a cleaning device, which comprises a main body and the above-mentioned fan assembly, and the fan assembly is arranged on the main body.

[0006] Compared with the prior art, the fan assembly provided by the present application has the following beneficial effects:

[0007] The present application can make the airflow output by the fan form two small airflows entering the first channel and the second channel through the shunt port arranged in the shell, the small airflows in the first channel and the second channel can flow out through the air outlet arranged in the shell, so that the flow rate of the airflow can be reduced by shunting, and the flow of the airflow is more stable, which is beneficial to reducing the noise generated when the airflow moves; the present application also utilizes the first air supply section in the first channel and the second air supply section in the second channel to deliver the two small airflows flowing in different directions to the confluence area, so that the two small airflows collide in the confluence area, and then are discharged from the shell through the air outlet, so as to offset the energy and realize noise reduction. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced. Obviously, the drawings in the following description only relate to some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings also fall within the protection scope of the present application.

[0009] Figure 1 is a cross-sectional structural schematic diagram of a cleaning device provided by some embodiments of the present application;

[0010] Figure 2 is a side structural schematic diagram of a fan assembly provided by some embodiments of the present application;

[0011] Figure 3 is Figure 2 is a cross-sectional structural schematic diagram of the fan assembly in the embodiments along A-A;

[0012] Figure 4 is a three-dimensional structural schematic diagram of the fan assembly provided by some embodiments of the present application;

[0013] Figure 5 is Figure 4 is an exploded structural schematic diagram of the fan assembly in the embodiments;

[0014] Figure 6 is a cross-sectional structural schematic diagram of the fan assembly provided by some embodiments of the present application. DETAILED DESCRIPTION

[0015] In the following description, specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, persons of ordinary skill in the art will readily recognize that the application can be practiced without these specific details. In other instances, well-known structures, devices, circuits, and methods have not been described in detail in order to avoid obscuring the application.

[0016] In order to make the above objectives, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application will be described in detail below with reference to the drawings. It can be understood that the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0017] The embodiments of the present application provide a cleaning device and a fan assembly thereof. The cleaning device is, for example but not limited to, a cleaning robot, a cleaning base station, a dust collector, etc. Please refer to Figure 1 , Figure 1This is a cross-sectional structural schematic diagram of a cleaning device provided in some embodiments of this application.

[0018] In some embodiments, the cleaning device 10 includes a main body 11 and a fan assembly 12, with the fan assembly 12 disposed within the main body 11. The main body 11 may have a dust chamber 101 for collecting dust and other particulate matter or debris. The surface of the main body 11 may have a suction port 102, and the fan assembly 12 may have an air inlet 103. The suction port 102 and the air inlet 103 are respectively connected to the dust chamber 101. The cleaning device 10 utilizes the fan assembly 12 to draw in airflow through the air inlet 103, allowing external dust to enter the dust chamber 101 through the suction port 102.

[0019] The main body 11 may include an upper cover 111, a middle shell 112, and a bottom shell 113. The upper cover 111 may cover the middle shell 112 and together with the middle shell 112 form a dust chamber 101. The bottom shell 113 may be connected to the bottom of the middle shell 112 and is used by the middle shell 112 to form a space for installing the fan assembly 12. The fan assembly 12 may be a module that can be installed as a whole into the main body 11 or removed from the main body 11. The fan assembly 12 may be embedded in the main body 11 to reduce the volume of the cleaning device 10. The cleaning device 10 may also include a protective cover 13, which may cover the air inlet 103 of the fan assembly 12 to prevent particulate matter from entering the fan assembly 12 through the air inlet 103. The protective cover 13 may be provided on the middle shell 112 to facilitate the installation or removal of the fan assembly 12.

[0020] It should be noted that the fan assembly 12 provided in this application embodiment can also be applied to other devices, and is not limited to the cleaning device 10 described above. The cleaning device 10 may have functions such as, but not limited to, dust collection, blowing, and air extraction.

[0021] Understandably, all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Please see Figure 1 and Figure 2 , Figure 2 This is a side view structural diagram of a wind turbine assembly provided in some embodiments of this application.

[0023] In some embodiments, the fan assembly 12 may include an air inlet 103 and an air outlet 104. The air inlet 103 may be located at the top of the fan assembly 12, and the air outlet 104 may be located at the side of the fan assembly 12. When the fan assembly 12 is operating, airflow can enter the fan assembly 12 from the air inlet 103 and exit through the air outlet 104. Of course, the positions of the air inlet 103 and the air outlet 104 are not limited to the above examples.

[0024] Optionally, the fan assembly 12 further includes a noise reduction element 100, which can be disposed at the air outlet 104, allowing airflow to pass through the noise reduction element 100 for output. The noise reduction element 100 is a sound-absorbing material used to reduce the noise generated by the fan assembly 12 during operation. A groove may be formed on the side of the fan assembly 12, in which the noise reduction element 100 can be accommodated and cover the air outlet 104. The noise reduction element 100 can be noise-reducing cotton. In other embodiments, the noise reduction element 100 can also be other noise-reducing materials, such as sound-absorbing foam, sound-absorbing fiberboard, etc.

[0025] It should be understood that the terms "comprising" and "having," and any variations thereof, used in this application and the appended claims, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0026] Please see Figure 2 and Figure 3 , Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of the fan assembly in the embodiment, cut along section AA.

[0027] In some embodiments, the airflow entering the fan assembly 12 from the air inlet 103 can be divided into multiple smaller airflows and delivered to the air outlet 104 respectively. The fan assembly 12 may include a first channel 121 and a second channel 122. A first airflow channel 105 can be formed inside the first channel 121, and a second airflow channel 106 can be formed inside the second channel 122. The fan assembly 12 may be provided with a diversion port 107. One end of the first channel 121 and one end of the second channel 122 are respectively connected to the diversion port 107, so that the airflow passing through the diversion port 107 can be divided into two airflows that enter the first airflow channel 105 and the second airflow channel 106 respectively. The diversion port 107 can be connected to the air inlet 103, and the airflow entering the fan assembly 12 from the air inlet 103 can be delivered to the first airflow channel 105 or the second airflow channel 106 respectively through the diversion port 107.

[0028] The first channel 121 and the second channel 122 are physical channels that guide the airflow. It should be noted that the number of such channels in the fan assembly 12 is not limited to two, but can be more than two, such as three, four or more. This embodiment is only used as an example of the fan assembly 12 including the first channel 121 and the second channel 122.

[0029] This embodiment utilizes the first channel 121 and the second channel 122 to respectively transport a portion of the airflow, which can reasonably divide a large airflow into multiple smaller airflows to reduce the speed of each airflow, thereby reducing noise generated by the high-speed movement of the airflow. Moreover, through the above-mentioned flow-diversion design, this embodiment can make the airflow more stable and uniform, which is beneficial to reducing possible turbulence and eddy current phenomena.

[0030] The fan assembly 12 may also include a confluence zone 108. The first channel 121 includes a first air supply section 1211 connecting the confluence zone 108, extending along a first direction. The second channel 122 includes a second air supply section 1221 connecting the confluence zone 108, extending along a second direction. The first direction differs from the second direction, allowing the airflow entering the confluence zone 108 through the first air supply section 1211 and the airflow entering the confluence zone 108 through the second air supply section 1221 to collide in the confluence zone 108, thereby canceling out the energy of each airflow and further improving noise reduction.

[0031] The first air supply section 1211 is the part of the first channel 121 used to connect the junction area 108. The second air supply section 1221 is the part of the second channel 122 used to connect the junction area 108. The location and number of junction areas 108 can be designed as needed, and similarly, the location and number of the first air supply section 1211 and the second air supply section 1221 can be designed as needed.

[0032] It should be noted that the situations where the first direction and the second direction are different include, but are not limited to, situations where the first direction and the second direction are opposite, where the first direction and the second direction form an obtuse angle, where the first direction and the second direction are perpendicular, and where the first direction and the second direction form an acute angle. Taking the first direction and the second direction being opposite as an example, the corresponding situation could be that the first air supply section 1211 extends from left to right to the confluence area 108, and the second air supply section 1221 extends from right to left to the confluence area 108, so that the airflows delivered by the two sections will collide in the confluence area 108. Of course, the specific extension directions of the first air supply section 1211 and the second air supply section 1221 are not limited to this.

[0033] In some embodiments, such as Figure 3As shown, the confluence zone 108 can communicate with the air outlet 104, that is, it is formed at the outlet end inside the fan assembly 12. The first air supply section 1211 can be the part of the first channel 121 near the air outlet 104, and the second air supply section 1221 can be the part of the second channel 122 near the air outlet 104. In other words, the first air supply section 1211 and the second air supply section 1221 can be the parts of the first channel 121 and the second channel 122 respectively used to transport airflow to the air outlet 104, that is, the air outlet ends of the first channel 121 and the second channel 122. The number of confluence zone 108, first air supply section 1211 and second air supply section 1221 can all be, but is not limited to, one.

[0034] When the airflow in the first channel 121 and the second channel 122 is delivered to the vicinity of the air outlet 104, because the first direction and the second direction are different, multiple airflows will collide in the confluence area 108 before being output through the air outlet 104. As a result, the energy of the two airflows will partially cancel each other out, and the airflow velocity will decrease, which helps to reduce the noise generated by the fan assembly 12.

[0035] In other embodiments, the location and number of the confluence zone 108, the first air supply section 1211, and the second air supply section 1221 are not limited to this. For example, both the first channel 121 and the second channel 122 can be serpentine channels with multiple intersections, forming multiple confluence zones 108. The first channel 121 connects the various parts of each confluence zone 108, serving as the first air supply section 1211, and the second channel 122 connects the various parts of each confluence zone 108, serving as the second air supply section 1221. During the transport process, the airflow within the first channel 121 and the second channel 122 will undergo multiple collisions to cancel out energy and achieve noise reduction. The following mainly focuses on... Figure 3 The fan assembly 12 shown is used as an example for explanation.

[0036] It should be understood that the terminology used in this specification and appended claims is for the purpose of describing particular embodiments only and is not intended to limit the application. As used in this specification and appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. Similarly, the terms “first” and “second” in the description of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include one or more of the stated features. Furthermore, the term “multiple” in the description of this application means two or more, unless otherwise explicitly specified.

[0037] Please see Figures 3 to 5 , Figure 4This is a three-dimensional structural schematic diagram of a wind turbine assembly provided in some embodiments of this application. Figure 5 yes Figure 4 An exploded view of the wind turbine assembly in the embodiment.

[0038] In some embodiments, the fan assembly 12 may include a fan 200 and a housing 300. The fan 200 is a mechanical device for gas conveying and pressurization. The fan 200 may be at least partially disposed in the housing 300 and has an air outlet 109. The housing 300 may have a diversion port 107. One end of the first channel 121 and one end of the second channel 122 may be connected to the diversion port 107, respectively. The housing 300 may also have an air outlet 104. The other ends of the first channel 121 and the second channel 122 may be connected to the air outlet 104, respectively.

[0039] Both the diversion port 107 and the confluence area 108 can be located inside the housing 300. The air outlet 104 can be located on the surface of the housing 300. The diversion port 107 can be connected to the fan 200. Understandably, the air supply port 109 is the output end of the fan 200, and the air inlet 103 is the input end of the fan 200. The diversion port 107 can be connected to the fan 200 by connecting to the air supply port 109, and the diversion port 107 is used to transport the airflow output by the fan 200 through the air supply port 109 to the first channel 121 and the second channel 122.

[0040] The outer casing 300 may include a first shell portion 310 and a second shell portion 320. At least a portion of the first shell portion 310 surrounds the outer periphery of the second shell portion 320 and is spaced apart from the second shell portion 320. The first shell portion 310 may form the outer surface of the outer casing 300. The first shell portion 310 may be partially connected to the second shell portion 320. For example, the top end of the first shell portion 310 may be connected to the top end of the second shell portion 320. The second shell portion 320 may extend from one end of the first shell portion 310 to the inner periphery of the first shell portion 310. In other embodiments, the first shell portion 310 may also be entirely spaced apart from the second shell portion 320.

[0041] The first housing portion 310 may be provided with an air outlet 104. The second housing portion 320 may be provided with a diversion port 107. The first housing portion 310 may surround the first channel 121 and the second channel 122. The first channel 121 and the second channel 122 may be disposed between the second housing portion 320 and the first housing portion 310. The first housing portion 310 is at least partially spaced from the second housing portion 320, and the first channel 121 and the second channel 122 may be disposed in the space formed by the space between the first housing portion 310 and the second housing portion 320.

[0042] In some embodiments, the first channel 121 and the second channel 122 can be structural components independent of the housing 300. For example, the first channel 121 and the second channel 122 can be two pipes disposed within the inner perimeter of the first housing portion 310, with the first airflow channel 105 and the second airflow channel 106 being the lumens of the two pipes, respectively. Both pipes can be connected to the portion of the second housing portion 320 provided with the diversion port 107. The first channel 121 and the second channel 122 can be either attached to or spaced from the inner wall of the first housing portion 310. Similarly, the first channel 121 and the second channel 122 can either be attached to or spaced from the inner wall of the second housing portion 320.

[0043] The first air supply section 1211 is a segment of the first channel 121, and the first direction is the extension direction of the first air supply section 1211. The first direction can be the axial direction of the first air supply section 1211, i.e., the axial direction of the pipe. The first direction can also be the internal tangent direction of the first air supply section 1211, i.e., the tangential direction of the inner wall of the pipe. The second air supply section 1221 is a segment of the second channel 122, and the second direction is the extension direction of the second air supply section 1221. The second direction can be the axial direction of the second air supply section 1221, i.e., the axial direction of the pipe. The second direction can also be the internal tangent direction of the second air supply section 1221, i.e., the tangential direction of the inner wall of the pipe.

[0044] In other embodiments, the first channel 121 and the second channel 122 can be integrally formed with the housing 300, for example, integrally molded with the housing 300. For ease of understanding, this integral structure can be referred to as a housing, the housing 300 can be the outer wall of the housing, and the first channel 121 and the second channel 122 can be the inner wall of the housing. The inner wall of the housing can be considered as being located inside the outer wall of the housing, that is, the first channel 121 and the second channel 122 can be considered as being located inside the housing 300. By designing the first channel 121, the second channel 122, and the housing 300 as an integral structure, the embodiments of this application can reduce the weight of the fan assembly 12 and also help to reduce the cost of the fan assembly 12.

[0045] The following description primarily uses the example of a structure where the first channel 121 and the second channel 122 are integrated with the housing 300. It should be noted that the description below also applies to embodiments where the first channel 121 and the second channel 122 are structural components independent of the housing 300.

[0046] The outer shell 300 can be a one-piece structure or a split structure. When the outer shell 300 is a split structure, the first channel 121 and the second channel 122 can be divided into multiple parts, and each part is integrally formed with the respective parts of the outer shell 300.

[0047] In some embodiments, one end of the first housing portion 310 may have an opening, and the outer casing 300 may include a bottom cover 400 covering the opening. A first channel 121 and a second channel 122 may be disposed within the space formed by the first housing portion 310, the second housing portion 320, and the bottom cover 400. A first sealing member 410 may be provided between the bottom cover 400 and the first housing portion 310. The first sealing member 410 may be, for example, but not limited to, a flexible material such as foam, and is used to tightly fit against the bottom cover 400 and the first housing portion 310 to prevent air leakage. It is understood that the first channel 121 and the second channel 122 may be partially integrally formed with the first housing portion 310 and the second housing portion 320, and partially integrally formed with the bottom cover 400.

[0048] In other embodiments, the other end of the first shell portion 310 may also be provided with a top cover. The top cover can cooperate with the first shell portion 310, the second shell portion 320 and the bottom cover 400 to form a space for providing the first channel 121 and the second channel 122. Similarly, the top cover can also be integrally formed with the first channel 121 and the second channel 122. Alternatively, at least one end of the first shell portion 310 may be formed with another wall. This wall can cooperate with the second shell portion 320 and the first shell portion 310 to form a space for providing the first channel 121 and the second channel 122. Similarly, this wall can be integrally formed with the first channel 121 and the second channel 122.

[0049] Optionally, the first channel 121 and the second channel 122 can be combined to form a ring structure. For example... Figure 3 As shown, the first channel 121 and the second channel 122 can be connected end to end. The first channel 121 and the second channel 122 can be located on both sides of the second shell 320, and cooperate to surround the second shell 320.

[0050] In some embodiments, the first channel 121 and the second channel 122, which are used to connect one end of the diversion port 107, can be connected. In other words, the air inlet ends of the first channel 121 and the second channel 122 can be connected. This "connection" can mean that the two are detachably connected or that they are integrally formed. In other embodiments, the air inlet ends of the first channel 121 and the second channel 122 can also be spaced apart.

[0051] The first channel 121 is used to connect to the other end of the air outlet 104, and the second channel 122 is also used to connect to the other end of the air outlet 104. In other words, the air outlet ends of the first channel 121 and the second channel 122 can be connected. Similarly, the "connection" here can be a detachable connection between the two or they can be integrally formed. The other end of the first channel 121 is the first air supply section 1211, the other end of the second channel 122 is the second air supply section 1221, and the intersection area 108 is the space enclosed by the first air supply section 1211 and the second air supply section 1221, and it is connected to the air outlet 104.

[0052] The airflow flowing along the first channel 121 and the airflow flowing along the second channel 122 will collide at the outlet ends of the two channels, and the collided airflow will then be discharged from the outer casing 300 through the air outlet 104. In other embodiments, the air inlets of the first channel 121 and the second channel 122 may also be arranged separately, and the confluence area 108 may be formed by the first shell portion 310 and the second shell portion 320.

[0053] Understandably, the first channel 121 and the second channel 122 can be designed as one of the following four configurations: both the air inlet and the air outlet are connected; the air inlets are connected and the air outlets are separated; the air inlets are separated and the air outlets are connected; or both the air inlet and the air outlet are separated. The specific configuration can be selected as needed.

[0054] This embodiment of the application, by combining the first channel 121 and the second channel 122 to form a ring structure, can create a ring-shaped air duct inside the housing 300. This facilitates extending the length of the air duct without increasing the volume of the fan assembly 12, thereby improving the noise reduction effect. The air duct is, for example, the first airflow channel 105 and the second airflow channel 106 described above. In other embodiments, the fan assembly 12 can also form other forms of air ducts, such as strip air ducts, spiral air ducts, etc., and is not limited to this embodiment. In other words, the structure formed by the combination of the first channel 121 and the second channel 122 is not limited to the ring structure described above, but can also be other shapes.

[0055] The confluence zone 108 can be located between the first housing 310 and the second housing 320, and connects to the air outlet 104. The diversion port 107 can be located on the side of the second housing 320 away from the confluence zone 108, so as to extend the length of the air duct without increasing the volume of the fan assembly 12. The other end of the first channel 121 that connects to the air outlet 104 can be the first air supply section 1211, and the other end of the second channel 122 that connects to the air outlet 104 can be the second air supply section 1221. Both the first air supply section 1211 and the second air supply section 1221 can be connected to the air outlet 104 through the confluence zone 108.

[0056] In some embodiments, the second housing portion 320 may enclose a mounting cavity 301. The mounting cavity 301 may communicate with the diversion port 107. A fan 200 may be disposed in the mounting cavity 301, so that the fan 200 can output airflow to the mounting cavity 301 through the air outlet 109, and the airflow in the mounting cavity 301 can flow to the first channel 121 and the second channel 122 through the diversion port 107. One end of the second housing portion 320 may be provided with an opening 302 communicating with the mounting cavity 301, so that the fan 200 can be mounted in the mounting cavity 301 through the opening 302.

[0057] Optionally, the second housing portion 320 includes an annular wall 321. The annular wall 321 may be spaced apart from the first housing portion 310. The first channel 121 and the second channel 122 may be formed on both sides of the annular wall 321, respectively. The annular wall 321 may be, for example, but not limited to, a circular annular wall. The fan 200 may be disposed within the inner perimeter of the annular wall 321. In some embodiments, the second housing portion 320 may further include a bottom wall 322, which extends from one end of the annular wall 321 and, together with the annular wall 321, forms a mounting cavity 301. The other end of the annular wall 321 may have an opening 302 communicating with the mounting cavity 301. In other embodiments, the mounting cavity 301 may be formed by the annular wall 321 and the bottom cover 400.

[0058] A diversion port 107 may be provided on the annular wall 321. An air outlet 104 may be provided on the first housing portion 310. The diversion port 107 may be located on the side of the annular wall 321 opposite to the air outlet 104, thereby extending the length of the first channel 121 and the second channel 122. In other embodiments, the air outlet 104 may be located in other positions. The airflow output from the diversion port 107 on one side of the annular wall 321 can be divided into multiple smaller airflows that enter the first channel 121 and the second channel 122, flowing in different directions to the other side of the annular wall 321, colliding at the confluence area 108, and then being output through the air outlet 104. Through the above design, the fan assembly 12 can reduce the airflow velocity at output, which is beneficial for reducing high-frequency noise, lowering the noise intensity, and reducing the adverse effects of noise on the environment or people.

[0059] Optionally, the first channel 121 and the second channel 122 can be symmetrically arranged along the central axis of the fan assembly 12. In some embodiments, the first channel 121 and the second channel 122 can be symmetrically arranged with the center line Y, formed by connecting the center of the outlet 104 and the center of the diversion port 107, as the boundary. The portions of the first housing 310 and the second housing 320 located on both sides of the center line Y can also be symmetrically arranged. The center line Y can be the central axis of the fan assembly 12. In other embodiments, the first channel 121 and the second channel 122 can also be symmetrically arranged along other central axes of the fan assembly 12.

[0060] Through the above design, the fan assembly 12 can make the flow rates of the two airflows delivered from the splitter port 107 to the first channel 121 and the second channel 122 approximately equal. Thus, when the two airflows collide in the confluence zone 108, the energy of the two airflows can be canceled out as much as possible, thereby minimizing the flow velocity of the airflow output through the outlet 104. This is beneficial for significantly reducing the noise generated by the fan assembly 12 during operation.

[0061] The fan assembly 12 may further include a noise reduction element 100, which is disposed at the air outlet 104 to further reduce noise generated by airflow. The noise reduction element 100 may be interference-fitted into the air outlet 104 and fixed by pressing the first housing portion 310. In other embodiments, the noise reduction element 100 may also be fixed to the first housing portion 310 by means of, but not limited to, bonding. The fan assembly 12 may further include a second seal 110, which may be disposed on the first housing portion 310 and connected to the noise reduction element 100. The second seal 110 may be, for example, but not limited to, a flexible material such as foam. The second seal 110 is used to ensure a tight fit with the body 11 when the fan assembly 12 is installed on the body 11 of the cleaning device 10, to prevent airflow leakage into the body 11. The area of ​​the body 11 corresponding to the air outlet 104 may have through holes for airflow output.

[0062] In other embodiments, the first channel 121 and the second channel 122 may also be disposed on the same side of the annular wall 321. For example, one side of the annular wall 321 may be in contact with or integrally formed with the first shell portion 310, and the other side of the annular wall 321 may be spaced apart from the first shell portion 310. At least one layer may be provided between the other side of the annular wall 321 and the first shell portion 310 to divide the space into spaces for disposing of the first channel 121 and the second channel 122. Similarly, when the annular wall 321 is integrally spaced apart from the first shell portion 310, a layer may also be provided between the annular wall 321 and the first shell portion 310 to divide the space into two or more channel spaces.

[0063] Understandably, the noise generated by the fan assembly 12 originates partly from the airflow and partly from the vibration of the components. The fan assembly 12 provided in this application embodiment can reduce the former part of the noise through the above design, and can also reduce the latter part of the noise through the following design.

[0064] Please see Figures 3 to 6 , Figure 6 This is a cross-sectional structural schematic diagram of a wind turbine assembly provided in some embodiments of this application.

[0065] In some embodiments, the fan assembly 12 may include a first flexible element 500. The fan 200 can be connected to the housing 300 via the first flexible element 500, and the connection method and connection position can be set as needed.

[0066] Optionally, the fan assembly 12 includes a first flexible member 500 and a second flexible member 600. Both the first flexible member 500 and the second flexible member 600 are connected to the fan 200. One end of the fan 200 can be connected to the second housing portion 320 via the first flexible member 500, and the other end of the fan 200 can be connected to the second housing portion 320 via the second flexible member 600. The first flexible member 500 can be located at the top of the fan 200. The second flexible member 600 can be located at the bottom of the fan 200. The fan 200 can be disposed in the mounting cavity 301 formed in the second housing portion 320 and is flexibly connected to the outer casing 300 via the first flexible member 500 and the second flexible member 600. The fan 200 itself and the outer casing 300 can be spaced apart to prevent vibrations generated during the operation of the fan 200 from being directly transmitted to the outer casing 300.

[0067] The first flexible member 500 can be sleeved on one end of the fan 200 and seal the communicating opening 302. The first flexible member 500 can be inserted into the opening 302. In some embodiments, the first flexible member 500 may include a first connecting portion 510 and a first mating portion 520. The first connecting portion 510 is sleeved on one end of the fan 200. The first mating portion 520 may protrude from the first connecting portion 510 and abut against the inner surface of the first shell portion 310 or the annular wall 321. The first mating portion 520 is a hollow cylindrical body used to improve the shock absorption effect. Multiple first mating portions 520 may be provided on the outer peripheral surface of the first connecting portion 510, and the first flexible member 500 can be press-fitted with the shell 300 using the first mating portions 520. A second mating portion 530 may also protrude from the outer peripheral surface of the first connecting portion 510, and the second mating portion 530 can overlap the end face of the first shell portion 310 or the annular wall 321.

[0068] The other end of the second housing portion 320 may be provided with a mounting hole 601 communicating with the mounting cavity 301. The second flexible member 600 can be inserted into the mounting hole 601 to reduce the space occupied by the second flexible member 600. In some embodiments, the second flexible member 600 can be inserted into the other end of the fan 200 and abut against the second housing portion 320. The second flexible member 600 may include a second connecting portion 610 and a third mating portion 620. The second connecting portion 610 can be inserted into the bottom end of the fan 200 to achieve a tight fit with the fan 200. The third mating portion 620 can abut against the bottom wall 322 of the second housing portion 320. The bottom wall 322 may have a mounting hole 601. The second flexible member 600 may also include a fourth mating portion 630, which may protrude from the third mating portion 620. The fourth mating part 630 can be inserted into the mounting hole 601 to achieve a tight fit with the housing 300 while reducing the space occupied by the second flexible member 600.

[0069] In other embodiments, the first flexible member 500 and the second flexible member 600 may also be connected to the fan 200 and the housing 300 in other ways, such as, but not limited to, socketing, snap-fitting, and plugging, which will not be listed here. The fan 200 may also be flexibly connected to the housing 300 through one or more flexible members, and is not limited to the first flexible member 500 and the second flexible member 600 described above.

[0070] In some embodiments, at least one third flexible member 700 may be provided on the outer surface of the housing 300. The fan assembly 12 is used to be mounted externally via the third flexible member 700, for example, mounted on the main body 11 via the third flexible member 700. The fan assembly 12 of the cleaning device 10 may be spaced apart from the main body 11 and flexibly connected to the main body 11 via the third flexible member 700 to prevent vibrations generated during the operation of the fan assembly 12 from being directly transmitted to the main body 11. The third flexible member 700 may be provided on the first housing portion 310. The third flexible member 700 may be connected to the housing 300 and the main body 11 in a manner including, but not limited to, snap-fitting or abutting. The number of third flexible members 700 may be one or more, and their shape and placement may be determined according to actual conditions.

[0071] The first flexible member 500, the second flexible member 600, and the third flexible member 700 are, for example, but not limited to, flexible materials such as soft rubber. Through the above design, the present application embodiment can reduce the noise generated by the vibration of the fan 200, thereby further reducing the noise generated by the fan assembly 12 and the cleaning equipment 10 during operation.

[0072] In the description of this application, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] The above description is only a partial embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural changes made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fan assembly, characterized in that, The fan assembly includes a fan, a housing, a first channel, and a second channel. The housing is provided with a diversion port that connects to the fan. The diversion port is connected to one end of the first channel and one end of the second channel, respectively. The housing is also provided with an air outlet. The other end of the first channel and the other end of the second channel are connected to the air outlet, respectively. The outer casing has an internal confluence area. The first channel includes a first air supply section that connects to the confluence area and extends along a first direction. The second channel includes a second air supply section that connects to the confluence area and extends along a second direction. The first direction is different from the second direction. This is to cause the airflow entering the confluence area through the first air supply section and the airflow entering the confluence area through the second air supply section to collide in the confluence area. The collided airflow is then discharged from the outer casing through the air outlet.

2. The wind turbine assembly according to claim 1, characterized in that, The other end of the first channel is the first air supply section, and the other end of the second channel is the second air supply section. The first air supply section and the second air supply section are connected. The intersection area is the space enclosed by the first air supply section and the second air supply section, and is connected to the air outlet.

3. The wind turbine assembly according to claim 1, characterized in that, The first channel and the second channel work together to form a ring structure.

4. The wind turbine assembly according to claim 3, characterized in that, The first channel and the second channel are symmetrically arranged along the central axis of the wind turbine assembly.

5. The wind turbine assembly according to claim 3, characterized in that, The outer shell includes a first shell portion and a second shell portion. The first shell portion is provided with the air outlet, and the second shell portion is provided with the diversion port. At least a portion of the first shell portion surrounds the outer periphery of the second shell portion and is spaced apart from the second shell portion. The first channel and the second channel are disposed in the space formed by the first shell portion and the second shell portion. The first channel and the second channel are respectively located on both sides of the second shell portion and cooperate to surround the second shell portion.

6. The wind turbine assembly according to claim 5, characterized in that, The confluence area is located between the first shell and the second shell and is connected to the air outlet. The diversion port is located on the side of the second shell away from the confluence area. The other end of the first channel is the first air supply section, and the other end of the second channel is the second air supply section. Both the first air supply section and the second air supply section are connected to the air outlet through the confluence area.

7. The wind turbine assembly according to claim 5, characterized in that, The second shell portion forms an installation cavity, and the fan is disposed in the installation cavity. The fan assembly includes a first flexible member, and the fan is connected to the shell through the first flexible member.

8. The wind turbine assembly according to claim 7, characterized in that, One end of the second housing is provided with an opening that communicates with the mounting cavity, so that the fan can be installed in the mounting cavity through the opening. The first flexible member is sleeved on one end of the fan and blocks the opening. The fan assembly further includes a second flexible member, and the other end of the fan is connected to the second housing through the second flexible member. The other end of the second housing is provided with a mounting hole communicating with the mounting cavity, and the second flexible member is inserted into the mounting hole.

9. The wind turbine assembly according to any one of claims 1-7, characterized in that, The first channel, the second channel, and the outer shell are integrally formed.

10. The wind turbine assembly according to claim 1, characterized in that, At least one third flexible element is provided on the outer surface of the housing, and the fan assembly is used to be mounted externally via the third flexible element.

11. A cleaning device, characterized in that, The cleaning equipment includes a main body and a fan assembly as described in any one of claims 1-10, wherein the fan assembly is disposed on the main body.

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