Fan assembly, cleaning device and cleaning system

Abstract

A fan assembly (100), comprising a housing (10) and a fan (20), wherein the housing (10) has an air inlet (101) and air outlets (102); the fan (20) is arranged in the housing (10) and is in communication with the air inlet (101); and an air duct (30) in communication with the fan (20) and the air outlets (102) is provided inside the housing (10), and the air duct (30) has at least one turn. The fan assembly has low noise generated during operation.

Description

Fan assembly, cleaning device and cleaning system Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 202420750530.7, filed on April 11, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure belongs to the technical field of electrical appliances, and particularly relates to a fan assembly, a cleaning device and a cleaning system. BACKGROUND

[0003] A cleaning device is a mechanical device designed for cleaning. The cleaning device plays a role of efficient cleaning, reduces the labor cost of cleaning, improves work efficiency and cleaning degree, and is indispensable in modern society.

[0004] The cleaning device has a fan to perform cleaning work. However, when the fan works, the generated noise is large, which affects the user experience. SUMMARY

[0005] To solve the technical problem that the noise generated when the fan works is large and affects the user experience, a fan assembly, a cleaning device and a cleaning system are provided.

[0006] In a first aspect of the present disclosure, a fan assembly is provided, comprising: a housing having an air inlet and an air outlet; a fan arranged in the housing and in communication with the air inlet; wherein the housing is provided with an air duct in communication with the fan and the air outlet, and the air duct is turned at least once.

[0007]

[0008] In a second aspect of the present disclosure, a cleaning device is provided, comprising the fan assembly.

[0009] In a third aspect of the present disclosure, a cleaning system is provided, comprising a cleaning base station and the cleaning device.

[0010] BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creative labor.

[0012] FIG. 1 shows a structural schematic diagram of a fan assembly according to one or more embodiments of the present disclosure.

[0013] Fig. 2 shows a schematic view of the arrangement of the air outlet of the fan assembly in Fig. 1.

[0014] Fig. 3 shows a top view of the fan assembly in Fig. 1.

[0015] Fig. 4 shows a sectional view taken along the section line A-A in Fig. 2.

[0016] The correspondence between reference signs and component names is as follows:

[0017] 10, housing; 101, air inlet; 102, air outlet; 103, fan support; 104, fan housing; 20, fan; 30, air duct; 301, sub-air duct; 40, blocking piece; 50, noise reduction piece; 100, fan assembly. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present disclosure will be described clearly and completely below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present disclosure.

[0019] In addition, the present disclosure can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0020] Referring to Figs. 1, 2, 3 and 4, in a first aspect of the present disclosure, a fan assembly 100 is provided, comprising a housing 10 and a fan 20. The housing 10 has an air inlet 101 and an air outlet 102. The fan 20 is arranged in the housing 10 and communicates with the air inlet 101. The housing 10 is provided with an air duct 30 which communicates with the fan 20 and the air outlet 102, and the air duct 30 is turned at least once.

[0021] As the shell 10 has the air inlet 101 and the air outlet 102, the fan 20 is arranged in the shell 10 and communicates with the air inlet 101, and the shell 10 is provided with the air duct 30 which communicates with the fan 20 and the air outlet 102. Therefore, when the fan 20 works, the gas enters the fan 20 through the air inlet 101, and then flows through the air duct 30 and the air outlet 102. The air duct 30 at least turns once, which can make the path of the gas flow curved and extended, and helps to attenuate the sound transmission when the fan 20 works, so as to play a role in noise reduction. The inner wall of the air duct 30 can play a role in sound insulation, and further play a role in noise reduction, thereby improving the user experience.

[0022] Please refer to FIG. 4. In some embodiments, in order to make the path of the gas flow curved and extended, the air duct 30 includes a plurality of sub-air ducts 301. Adjacent two sub-air ducts 301 communicate, and the flow directions of the gas in the adjacent two sub-air ducts 301 are different. The fan 20 and the air outlet 102 respectively communicate with different sub-air ducts 301. The arrows in FIG. 4 indicate the flow direction of the gas from the air inlet 101 to the air outlet 102.

[0023] In some embodiments, when the fan 20 works, the gas enters the fan 20 through the inlet, and then enters one of the plurality of sub-air ducts 301 through the fan 20. After flowing in the remaining sub-air ducts, the gas is discharged through one of the sub-air ducts and the air outlet 102. Since the flow directions of the gas in the adjacent two sub-air ducts 301 are different, the fan 20 and the air outlet 102 respectively communicate with different sub-air ducts 301. Therefore, by making the gas flow in the plurality of sub-air ducts 301, the path of the gas flow can be made curved and extended, which helps to attenuate the sound transmission when the fan 20 works, so as to play a role in noise reduction and improve the user experience.

[0024] Please refer to FIG. 4. In order to achieve noise reduction, the length of the air duct 30 is generally designed to be relatively long. If the air duct 30 is a long strip-shaped whole air duct arranged in the height direction of the shell 10, the air duct 30 occupies a relatively large space in the height direction of the shell 10, i.e. in the radial direction of the shell 10. In some embodiments, the air duct can be arranged as a plurality of sub-air ducts 301, and the plurality of sub-air ducts 301 are arranged in the radial direction of the fan 20. That is, the air duct 30 is divided into a plurality of segments, and the longest sub-air duct 301 among the plurality of sub-air ducts 301 determines the height of the air duct 30, thereby reducing the height of the air duct 30 in the shell 10, i.e. reducing the axial dimension of the air duct 30. Compared with the whole air duct, arranging the air duct 30 to include a plurality of sub-air ducts 301 can increase the length of the air duct without changing the existing shell.

[0025] Referring to FIG. 4, in some embodiments, a plurality of sub-air ducts 301 are arranged adjacently and side by side along the radial direction of the fan 20, so that more sub-air ducts 301 can be arranged in the radial direction of the fan 20. The extension direction of the sub-air duct 301 is perpendicular to the radial direction of the shell 10, so that the distance occupied by each sub-air duct 301 in the radial direction of the shell 10 is the width of each sub-air duct 301 itself, which is the minimum distance occupied by each sub-air duct with a fixed width in the radial direction of the shell 10. Therefore, the number of sub-air ducts that can be arranged in the radial direction of the shell 10 is maximized, thereby prolonging the flow path of the gas as much as possible and achieving better noise reduction. In some embodiments, the width of each sub-air duct 301 can also be reduced as much as possible to increase the number of sub-air ducts that can be arranged, thereby maximizing the use of the radial space of the shell 10 and reducing the configuration requirements.

[0026] According to the foregoing, by splitting the air duct 30 into a plurality of sub-air ducts 301 and selecting reasonable size parameters and arrangement of the sub-air ducts 301 in the axial and radial directions of the shell 10, the space occupied by the air duct 30 in the shell 10 is reduced on the basis of ensuring the function of exhaust air noise reduction, thereby achieving optimal use of the space in the shell 10. In some embodiments, the formation of the plurality of sub-air ducts 301 can utilize the structure of the shell 10 itself without the need for additional parts, thereby simplifying the installation steps and reducing production costs.

[0027] Referring to FIG. 4, in some embodiments, in order to make the flow directions of the gases in two adjacent sub-air ducts 301 different, the end portions of the two adjacent sub-air ducts 301 are communicated. That is, the sub-air duct 301 has an inlet and an outlet. The two adjacent sub-air ducts 301 include a first sub-air duct and a second sub-air duct. The inlet of the first sub-air duct is located at the top of the first sub-air duct. The outlet of the first sub-air duct is located at the bottom of the first sub-air duct. The inlet of the second sub-air duct is located at the bottom of the second sub-air duct. The outlet of the second sub-air duct is located at the top of the second sub-air duct. In this way, the path of the gas flow is curved and prolonged, which helps to attenuate the sound transmission during the operation of the fan 20, thereby achieving noise reduction and improving the user experience.

[0028] Referring to FIG. 4, in some embodiments, in order to form a plurality of sub-air ducts 301, the fan assembly 100 further includes a plurality of blocking pieces 40. The plurality of blocking pieces 40 are arranged at intervals in the shell 10 and located between the fan 20 and the air outlet 102. The fan 20 and the adjacent blocking pieces 40 and each two adjacent blocking pieces 40 form a sub-air duct 301. The blocking piece 40 can act as an inner wall of the air duct 30 to play a sound insulation role, thereby achieving noise reduction and improving the user experience.

[0029] Please refer to FIG. 4, in some embodiments, in order to reduce the height of the fan assembly 100, the blocking piece 40 can be arranged in parallel with the rotation shaft of the fan 20, so as to avoid the blocking piece 40 occupying the height space of the shell 10, and facilitate the arrangement and installation of the blocking piece 40. Without increasing the height of the shell 10, the bending and lengthening of the gas flow path can be achieved without additional parts, thereby reducing the production cost.

[0030] Please refer to FIG. 4, in some embodiments, the gas flow path is arranged to be bent and lengthened. In this way, the gas flow directions in the two adjacent sub-air ducts 301 are opposite, so as to realize the turning of the air duct 30 at least once, which helps to attenuate the sound transmission during the operation of the fan 20, plays a role in noise reduction, and improves the user experience.

[0031] Please refer to FIG. 4, in some embodiments, in order to reduce the height of the fan assembly 100, the air duct 30 is arranged in parallel with the rotation shaft of the fan 20, so as to avoid the air duct 30 occupying the space of the shell 10 in the height direction, and facilitate the arrangement and installation of the air duct 30. Without increasing the height of the shell 10, the bending and lengthening of the gas flow path can be achieved without additional parts, thereby reducing the production cost.

[0032] Please refer to FIG. 1, FIG. 2, FIG. 3 and FIG. 4, in some embodiments, in order to support the fan 20, the shell 10 comprises a fan support 103 and a fan housing 104. The air inlet 101 is arranged on the fan support 103, and the fan 20 is arranged on the fan support 103. The fan housing 104 covers the fan 20 and is connected with the fan support 103, and the air outlet 102 is arranged on the fan housing 104, that is, the fan support 103 and the fan housing 104 form an installation space, and the fan 20 can be installed in the installation space to support the fan 20. At the same time, the fan support 103 and the fan housing 104 can avoid exposing the fan 20, thereby ensuring the safety and aesthetics of the fan 20.

[0033] In some embodiments, in order to facilitate the maintenance and disassembly of the fan 20, the fan support 103 is detachably connected with the fan housing 104.

[0034] Please refer to FIG. 4, in some embodiments, in order to reduce the cost, the length of the outermost blocking piece can be relatively short, and the outermost blocking piece is attached to the fan housing 104, that is, the fan housing 104 can function as the outermost blocking piece. The blocking piece adjacent to the outermost blocking piece 40 and the fan housing 104 can form a sub-air duct 301, so as to bend and lengthen the gas flow path, which helps to attenuate the sound transmission during the operation of the fan 20, plays a role in noise reduction.

[0035] In some embodiments, the blocking piece 40 can be arranged on the fan support 103 or on the fan housing 104. In other embodiments, the blocking piece 40 can be arranged on both the fan support 103 and the fan housing 104.

[0036] In some embodiments, the blocking piece 40 is detachably arranged on the fan support 103. In other embodiments, the blocking piece 40 is integrally formed with the fan support 103.

[0037] In some embodiments, the blocking piece 40 is detachably arranged on the fan housing 104. In other embodiments, the blocking piece 40 is integrally formed with the fan housing 104.

[0038] Referring to FIG. 4, in some embodiments, in order to make full use of the space of the housing 10, the projection of the air inlet 101 on the fan housing 104 in the axial direction of the rotation axis of the fan 20 is staggered with the air outlet 102, so that the gas entering through the air inlet 102 can flow fully in the air duct 30, so that the air duct 30 can be diverted at least once, which helps to attenuate the sound during the operation of the fan 20, plays a role in noise reduction, and improves the user experience.

[0039] Referring to FIG. 4, in some embodiments, in order to reduce noise, the fan assembly 100 further comprises a noise reduction piece 50. The noise reduction piece 50 is arranged at the air outlet 102. When the gas discharged through the air outlet 102 passes through the noise reduction piece 50, the noise reduction piece 50 reduces the noise of the discharged gas, thereby reducing the noise and improving the user experience. In some embodiments, the noise reduction piece 50 can be a noise reduction sponge.

[0040] Referring to FIG. 4, in some embodiments, in order to reduce noise, in the axial direction of the rotation axis of the fan 20, the projection of the noise reduction piece 50 on the housing 10 at least partially overlaps with the air outlet 102, that is, the noise reduction piece 50 can completely block the air outlet 102, so that the air discharged through the air outlet 102 completely passes through the noise reduction piece 50, and the noise reduction piece 50 can fully reduce the noise, thereby improving the user experience.

[0041] To solve the technical problem that the noise generated during the operation of the fan is large and affects the user experience, a fan assembly, a cleaning device and a cleaning system are provided.

[0042] In a first aspect of the present disclosure, a fan assembly is provided, comprising: a housing having an air inlet and an air outlet; a fan arranged in the housing and in communication with the air inlet; wherein the housing is provided with an air duct in communication with the fan and the air outlet, and the air duct is diverted at least once.

[0043] In some embodiments, the air duct comprises a plurality of sub-air ducts, two adjacent sub-air ducts are in communication, and the flow directions of the air in the two adjacent sub-air ducts are different, and the fan and the air outlet are respectively in communication with different sub-air ducts.

[0044] In some embodiments, the plurality of sub-air ducts are arranged side by side along the radial direction of the fan.

[0045] In some embodiments, the end portions of two adjacent sub-air ducts are in communication.

[0046] In some embodiments, the fan assembly further comprises a plurality of barriers which are arranged at intervals in the housing and are located between the fan and the air outlet, wherein the fan and the barriers and the barriers adjacent to each other form the sub-air ducts.

[0047] In some embodiments, the flow directions of the air in two adjacent sub-air ducts are opposite.

[0048] In some embodiments, the air duct is parallel to the rotation axis of the fan.

[0049] In some embodiments, the housing comprises a fan support, the air inlet is formed in the fan support, and the fan is arranged on the fan support; a fan shell covers the fan and is connected with the fan support, and the air outlet is formed in the fan shell.

[0050] In some embodiments, along the axial direction of the rotation axis of the fan, the projection of the air inlet on the fan shell is staggered with the air outlet.

[0051] In some embodiments, the fan assembly further comprises a noise reduction member arranged at the air outlet.

[0052] In some embodiments, along the axial direction of the rotation axis of the fan, the projection of the noise reduction member on the housing at least partially overlaps with the air outlet.

[0053] In a second aspect of the present disclosure, a cleaning device is provided, comprising the fan assembly.

[0054] In a third aspect of the present disclosure, a cleaning system is provided, comprising a cleaning base station and the cleaning device.

[0055] According to the fan assembly provided by the one or more embodiments of the present disclosure, since the shell has an air inlet and an air outlet, the fan is arranged in the shell and communicates with the air inlet, and the shell is provided with an air duct communicating with the fan and the air outlet, therefore, when the fan is working, the gas enters the fan through the air inlet and is discharged through the air duct and the air outlet in turn, the air duct at least turns once, which can make the path of the gas flow curved and prolonged, and is helpful for the attenuation of the sound during the working of the fan, and plays a role in noise reduction, at the same time, the inner wall of the air duct can play a role in sound insulation and noise reduction, and the user experience is improved.

[0056] In a second aspect of the present disclosure, a cleaning device is provided, comprising the fan assembly 1000.

[0057] In a third aspect of the present disclosure, a cleaning system is provided, comprising a cleaning base station and the cleaning device.

[0058] In some embodiments, the cleaning device can be a scrubber, a dust collector, a sweeper, etc., and the embodiments of the present disclosure are not limited thereto.

[0059] In the present disclosure, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0060] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0061] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative positional relationship, movement condition and the like between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0062] In the present disclosure, unless specifically defined otherwise and limited, the terms "connected", "fixed", and the like should be construed broadly and do not necessarily denote a direct connection, but can also mean an indirect connection or an integrated one, and can be a mechanical connection or an electrical connection, and can be a direct connection or an indirect connection through an intermediate medium, and can be an internal connection of two elements or an interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0063] In addition, in the present disclosure, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present disclosure, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0064] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the present specification.

[0065] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present disclosure. Although the embodiments of the present disclosure have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and variations of the embodiments can be made without departing from the principles and spirit of the present disclosure, and the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. A fan assembly (100), comprising: A housing (10) having an air inlet (101) and an air outlet (102); a fan (20), disposed in the housing (10) and in communication with the air inlet (101); Wherein, an air duct (30) communicating with the fan (20) and the air outlet (102) is provided in the housing (10), and the air duct (30) turns at least once.

2. The fan assembly (100) according to claim 1, wherein: The air duct (30) includes a plurality of sub-air ducts (301), two adjacent sub-air ducts (301) are connected, and the flow directions of the gases in the two adjacent sub-air ducts (301) are different, and the fan (20) and the air outlet (102) are respectively connected to different sub-air ducts (301).

3. The fan assembly (100) according to claim 2, wherein: Along the radial direction of the fan (20), a plurality of sub-air ducts (301) are arranged side by side.

4. The fan assembly (100) according to claim 2, wherein: The ends of two adjacent sub-air ducts (301) are connected.

5. The fan assembly (100) according to claim 2, further comprising: a plurality of blocking members (40) arranged at intervals within the housing (10) and located between the fan (20) and the air outlet (102); Wherein, the sub-air duct (301) is formed between the fan (20) and the adjacent blocking member (40) and between every two adjacent blocking members (40).

6. The fan assembly (100) according to claim 2, wherein: The wind flows in two adjacent sub-air ducts (301) in opposite directions.

7. The fan assembly (100) according to any one of claims 1 to 6, wherein: The air duct (30) is parallel to the rotation axis of the fan (20).

8. The fan assembly (100) according to any one of claims 1 to 6, wherein: The housing (10) comprises: A fan bracket (103), the air inlet (101) is opened on the fan bracket (103), and the fan (20) is arranged on the fan bracket (103); The fan housing (104) is provided to cover the fan (20) and is connected to the fan bracket (103). The air outlet (102) is provided in the fan housing (104).

9. The fan assembly (100) according to claim 8, wherein: Along the axial direction of the rotating shaft of the fan (20), the projection of the air inlet (101) on the fan housing (104) is staggered with the air outlet (102).

10. The fan assembly (100) according to any one of claims 1 to 6, further comprising: The noise reduction component (50) is arranged at the air outlet (102).

11. The fan assembly (100) according to claim 10, wherein: Along the axial direction of the rotating shaft of the fan (20), the projection of the noise reduction component (50) on the housing (10) at least partially overlaps with the air outlet (102).

12. A cleaning device comprising the fan assembly (100) according to any one of claims 1 to 11.

13. A cleaning system comprising a cleaning base station and the cleaning device according to claim 12.

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