Fan assembly, cleaning equipment and cleaning system

Abstract

The utility model discloses a fan assembly, cleaning equipment and a cleaning system. The fan assembly comprises a shell with an air duct; the fan is arranged in the shell; and the vibration reduction part is arranged between the shell and the fan and provided with a noise reduction cavity communicating with the air duct, and the noise reduction cavity can reduce noise.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning devices, and specifically relates to a fan assembly, a cleaning device and a cleaning system. Background Art

[0002] Fan assemblies are widely used in electrical equipment, especially in cleaning equipment. Fan assemblies are mainly used to enable air to flow quickly in electrical equipment and form negative pressure in the cleaning equipment, thereby achieving the purpose of cleaning. In the related art, during the operation of the fan assembly, the fan assembly may produce a large amount of noise due to reasons such as excessive wind speed or abnormal noise from the wind wheel. Summary of the invention

[0003] In order to solve the current technical problem of high noise, the present application provides a fan assembly, a cleaning device and a cleaning system.

[0004] In a first aspect of the present application, a fan assembly is provided, comprising: a housing having an air duct; a fan disposed in the housing; a vibration damping member disposed between the housing and the fan and having a silencer chamber connected to the air duct, wherein the silencer chamber can reduce noise.

[0005] In some embodiments, the vibration damping member includes: a connecting portion, disposed between the housing and the fan; a first vibration damping portion, connected to the connecting portion; and a second vibration damping portion, disposed outside the first vibration damping portion and connected to the connecting portion to form the silencer chamber.

[0006] In some embodiments, the number of the second vibration damping part is at least one, and along the radial direction of the fan, the first vibration damping part and the second vibration damping part are arranged in sequence and spaced apart, and the first vibration damping part is arranged inside the second vibration damping part.

[0007] In some embodiments, when there are multiple second vibration damping parts, the multiple second vibration damping parts are sequentially arranged at intervals along the radial direction of the fan, and two adjacent second vibration damping parts are arranged one inside the other.

[0008] In some embodiments, the vibration damping member further includes: a plurality of partitions, which are arranged in parallel and at intervals in the sound-absorbing chamber and connected to the connecting portion, the first vibration damping portion, and the second vibration damping portion to form a plurality of sub-sound-absorbing chambers.

[0009] In some embodiments, the depths of at least two of the sub-muffler cavities are the same or different.

[0010] In some embodiments, the connecting portion, the first vibration damping portion, the second vibration damping portion, and the plurality of partitions are integrally formed.

[0011] In some embodiments, when there are plural second vibration-damping parts, the plurality of partitions in adjacent silencing chambers are arranged in a staggered manner.

[0012] In some embodiments, the first vibration damping part and the second vibration damping part both have a contact surface, and the contact surface is a plane, a curved surface, or an arc surface; wherein the contact surface of the first vibration damping part is in contact with the fan, and the contact surface of the second vibration damping part is in contact with the shell.

[0013] In some embodiments, there are multiple second vibration damping parts, and the multiple second vibration damping parts are arranged outside the first vibration damping part and are all connected to the first vibration damping part.

[0014] In some embodiments, the connection portion is connected to an end portion of the first vibration dampening portion and an end portion of the second vibration dampening portion.

[0015] In some embodiments, the vibration damping member further includes: a third vibration damping portion connected to the first vibration damping portion and one of the connecting portions; wherein the third vibration damping portion is located between the top of the fan and the top of the shell, and the first vibration damping portion and the second vibration damping portion are located between the side of the fan and the side of the shell.

[0016] In some embodiments, the third vibration-damping portion has a supporting surface that is staggered from the first vibration-damping portion and the connecting portion, and the supporting surface is in contact with the top of the fan.

[0017] In some embodiments, the shell has a first boss, and the vibration damping member further includes: a fourth vibration damping portion, which is disposed on an end surface of the third vibration damping portion away from the supporting surface and abuts against the first boss.

[0018] In some embodiments, the shell has a second boss, and the vibration damping member further includes: at least two fifth vibration damping parts, which are arranged in parallel and spaced apart and connected to the end surface of the third vibration damping part facing away from the supporting surface; wherein the second boss is embedded between two adjacent fifth vibration damping parts.

[0019] In some embodiments, the depth of the silencing cavity is set according to the following formula: f=(c / l)(2n+1) / 4; wherein f is the frequency of the noise, c is the speed of the noise, l is the depth of the silencing cavity, and n is zero or a positive integer.

[0020] In some embodiments, the fan has an air outlet, and the depth direction of the silencing cavity is arranged to form an angle with the air outlet direction of the air outlet.

[0021] In a second aspect of the present application, a cleaning device is provided, comprising the fan assembly.

[0022] In a third aspect of the present application, a cleaning system is provided, characterized in that it comprises a cleaning base station and the cleaning device as described above.

[0023] According to the fan assembly provided in one or more embodiments of the present application, its shell has an air duct, and the fan is arranged in the shell, so the fan can be supported by the shell. Since the vibration damping component is arranged between the shell and the fan, the vibration generated by the fan when it is working can be transmitted and absorbed by the vibration damping component, thereby reducing the vibration that can be transmitted to the shell, and the vibration reduction effect is good, which improves the user experience. Since the vibration damping component has a silencer cavity connected to the air duct, the silencer cavity can reduce noise, so the noise can enter the silencer cavity through the air duct, and the noise will diffuse into the silencer cavity and move to the bottom wall of the silencer cavity and then reflect, and finally return to the air duct and be superimposed with the noise in the air duct, thereby achieving the purpose of silencing, and can reduce the noise diffused to the outside, achieving the effect of noise reduction. It can be understood that the vibration damping component has the functions of vibration reduction and silencing at the same time, realizes dual use of one piece, reduces costs, and does not need to set up silencer components, does not need to occupy additional space in the shell, and is easy to arrange. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic structural diagram of a fan assembly in one or more embodiments of the present application is shown.

[0026] Figure 2 Shows Figure 1 Top view of the fan assembly.

[0027] Figure 3 Shows Figure 2 AA section view.

[0028] Figure 4 Shows Figure 3 An enlarged schematic diagram of point B.

[0029] Figure 5 Shows Figure 3 A first structural schematic diagram of a vibration damping component.

[0030] Figure 6 Shows Figure 3 Schematic diagram of the arrangement of the sub-silence chamber of the vibration damping part.

[0031] Figure 7 Shows Figure 6 Top view of the vibration damper.

[0032] Figure 8 Shows Figure 7 CC section view.

[0033] Fig. 9 Shows Figure 2 A second structural schematic diagram of the vibration damping component.

[0034] Fig.10 A schematic diagram of the structure of a cleaning device in one or more embodiments of the present application is shown.

[0035] Explanation of the reference numerals: 10-shell, 101-air duct, first boss 102, 103-second boss; 20-fan, 201-air outlet; 30-vibration damping member, 301-silence chamber, 3011-sub-silence chamber, 302-connecting portion, 303-first vibration damping portion, 304-second vibration damping portion, 305-partitioning member, 306-third vibration damping portion, 3061-supporting surface, 307-fourth vibration damping portion, 308-fifth vibration damping portion; 100-fan assembly; 1000-cleaning equipment. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0037] In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides various specific examples of processes and materials, but those of ordinary skill in the art may recognize the application of other processes and / or the use of other materials.

[0038] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 In a first aspect of the present application, a fan assembly 100 is provided, including: a housing 10, a fan 20 and a vibration damping member 30. The housing 10 has an air duct 101. The fan 20 is disposed in the housing 10. The vibration damping member 30 is disposed between the housing 10 and the fan 20, and has a silencer cavity 301 communicated with the air duct 101, and the silencer cavity 301 can reduce noise.

[0039] The vibration damping member 30 may be made of a flexible material, such as rubber, silicone, foam or plastic.

[0040] In some embodiments, since the shell 10 has an air duct 101 and the fan 20 is disposed in the shell 10, the fan 20 can be supported by the shell 10. Since the vibration damping member 30 is disposed between the shell 10 and the fan 20, the vibration generated by the fan 20 when working can be transmitted and absorbed by the vibration damping member 30, thereby reducing the vibration that can be transmitted to the shell 10, achieving a good vibration reduction effect and improving the user experience.

[0041] During the operation of the fan 20, the gas will flow in the air duct 101. Since the gas flow or the operation of the fan 20 will generate noise during the operation of the fan 20, the noise will also spread from the air duct 101 to the outside, resulting in a relatively loud noise during the operation of the cleaning device, affecting the user's experience. In some embodiments, since the vibration damping member 30 has a silencer chamber 301 connected to the air duct 101, the silencer chamber 301 can reduce noise, so the noise can enter the silencer chamber 301 through the air duct 101, and the noise will diffuse into the silencer chamber 301 and move to the bottom wall of the silencer chamber 301 and then reflect, and finally return to the air duct 101, and be superimposed with the noise in the air duct 101, thereby achieving the purpose of silencing, reducing the noise diffused to the outside, and achieving a noise reduction effect.

[0042] In some embodiments, the silencing chamber 301 can achieve a certain degree of silencing effect. The depth of the silencing chamber 301 is related to the wavelength of the noise. When the phase of the noise reflected back from the silencing chamber 301 and the phase of the noise in the silencing chamber 301 in the air duct 101 are in two opposite half-waves, the volume of the noise can be weakened to a certain extent after the reflected noise is superimposed with the noise in the air duct 101.

[0043] In some embodiments, the vibration damper 30 has the functions of vibration reduction and noise reduction, achieving dual purposes, reducing costs, and eliminating the need for noise reduction components, and does not require additional space in the housing 10, making it easier to arrange.

[0044] In some embodiments, the housing 10 is the main body of the entire fan assembly 100. The housing 10 provides an installation base for the fan 20 and other components of the fan assembly 100, and can play a certain protective role for the fan 20 and other components of the fan assembly 100, thereby reducing damage to the fan 20 and other components by external impurities such as dust and particles.

[0045] See also Figure 3 , Figure 4 and Fig. 9In some embodiments, in order to achieve vibration reduction and silencing, the vibration damping member 30 includes: a connecting portion 302, a first vibration damping portion 303 and a second vibration damping portion 304. The connecting portion 302 is disposed between the housing 10 and the fan 20. The first vibration damping portion 303 is connected to the connecting portion 302. The second vibration damping portion 304 is disposed outside the first vibration damping portion 303 and is connected to the connecting portion 302 to form a silencing chamber 301. The connecting portion 302 may be the bottom wall of the silencing chamber 301.

[0046] In some embodiments, the connecting portion 302 is placed between the shell 10 and the fan 20, so that the first vibration damping portion 303 and the second vibration damping portion 304 are in contact with the fan 20 and the shell 10 respectively. When the fan 20 is working, the first vibration damping portion 303 and the second vibration damping portion 304 can transmit and absorb the vibration generated when the fan 20 is working layer by layer, thereby reducing the vibration that can be transmitted to the shell 10, and the vibration reduction effect is good, which improves the user experience. At the same time, the connecting portion 302 connects the first vibration damping portion 303 and the second vibration damping portion 304, which can ensure the structural strength of the vibration damping member 30, so that the vibration generated when the fan 20 is working can be transmitted between the first vibration damping portion 303 and the second vibration damping portion 304, so that the first vibration damping portion 303 and the second vibration damping portion 304 both participate in the vibration reduction process, ensuring that the first vibration damping portion 303 and the second vibration damping portion 304 can play a role in vibration reduction, further improving the vibration reduction effect.

[0047] In some embodiments, the second vibration damping portion 304, the first vibration damping portion 303 and the connecting portion 302 can form a silencer chamber 301, and noise can enter the silencer chamber 301 through the air duct 101. The noise will diffuse into the silencer chamber 301 and move to the bottom wall of the silencer chamber 301 and then reflect, and finally return to the air duct 101 and be superimposed with the noise in the air duct 101, thereby achieving the purpose of silencing, reducing the noise that diffuses to the outside, and achieving a noise reduction effect.

[0048] In some embodiments, compared with the integral vibration damping member 30, under the condition of selecting the same hard material, due to the existence of the silencer chamber 301, the thickness of the vibration damping member 30 can be reduced, that is, the distance between the first vibration damping portion 303 and the second vibration damping portion 304 can be reduced, and the vibration damping member 30 of the present application can also achieve the same vibration damping effect as the integral vibration damping structure, and the space occupied by the vibration damping member 30 can be reduced, which is convenient for layout and installation.

[0049] See also Figure 3 , Figure 4 , Figure 5 and Figure 6In some embodiments, in order to further ensure the vibration reduction effect, the number of the second vibration reduction part 304 is at least one, and along the radial direction of the fan 20, the first vibration reduction part 303 and the second vibration reduction part 304 are sequentially arranged at intervals, and the first vibration reduction part 303 is arranged in the second vibration reduction part 304. The first vibration reduction part 303 and the second vibration reduction part 304 can both be annular.

[0050] In some embodiments, when the fan 20 is working, the vibration generated by the fan 20 can be transmitted to the first vibration damping part 303 and at least one second vibration damping part 304 in sequence, so that the first vibration damping part 303 and at least one second vibration damping part 304 can transmit and absorb the vibration generated by the fan 20 when it is working layer by layer, thereby reducing the vibration that can be transmitted to the shell 10, achieving a good vibration damping effect and improving the user experience.

[0051] In some embodiments, since the first vibration damping part 303 and the second vibration damping part 304 are arranged at intervals, there is a distance between the first vibration damping part 303 and the second vibration damping part 304. The first vibration damping part 303 and the second vibration damping part 304 are both connected to the connecting part 302 to form a silencer cavity 301. The silencer cavity 301 reduces noise and improves user experience.

[0052] In some embodiments, in order to further ensure the vibration reduction effect, when there are multiple second vibration reduction parts 304, multiple second vibration reduction parts 304 are arranged in sequence and spaced apart along the radial direction of the fan 20, and two adjacent second vibration reduction parts 304 are arranged one inside the other.

[0053] In some embodiments, when the fan 20 is working, the vibration generated by the fan 20 can be transmitted to the first vibration damping part 303 and the multiple second vibration damping parts 304 in sequence, so that the first vibration damping part 303 and the multiple second vibration damping parts 304 can transmit and absorb the vibration generated by the fan 20 when it is working layer by layer, thereby reducing the vibration that can be transmitted to the shell 10, achieving a good vibration damping effect and improving the user experience.

[0054] In some embodiments, since the plurality of second vibration damping parts 304 are arranged at intervals, there is a distance between each two adjacent second vibration damping parts 304, and each two adjacent second vibration damping parts 304 are connected to the connecting part 302, and a silencer cavity 301 can also be formed, and the silencer cavity 301 can reduce noise and improve the user experience.

[0055] See also Figure 3 , Figure 4 , Figure 6 and Figure 8In some embodiments, in order to further achieve noise reduction, the vibration damping member 30 further includes: a partition 305. A plurality of partitions 305 are arranged in parallel and spaced apart in the silencing chamber 301, and are connected to the connecting portion 302, the first vibration damping portion 303, and the second vibration damping portion 304 to form a plurality of sub-silencing chambers 3011.

[0056] In some embodiments, noise can enter the sub-silence chamber 3011 through the air duct 101, the noise will diffuse into the sub-silence chamber 3011 and move to the bottom wall of the sub-silence chamber 3011 and then reflect, and finally return to the air duct 101 and be superimposed with the noise in the air duct 101, thereby achieving the purpose of silencing, reducing the noise that diffuses to the outside, and achieving a noise reduction effect.

[0057] In some embodiments, the structural strength of the vibration damping component 30 can be ensured by multiple partitions 305, so that the vibration generated by the fan 20 during operation can be fully transmitted between the first vibration damping part 303 and the second vibration damping part 304, so that both the first vibration damping part 303 and the second vibration damping part 304 participate in the vibration damping process, ensuring that the first vibration damping part 303 and the second vibration damping part 304 can play a vibration damping role, thereby further improving the vibration damping effect.

[0058] In some embodiments, the partition 305 can not only divide the silencer chamber 301 into a plurality of sub-silencer chambers 3011, but also ensure the structural strength of the vibration damping member 30, thereby achieving dual purpose of one piece and reducing the cost.

[0059] Since the frequency of the noise of the fan assembly 100 during operation is often not a point value but a frequency band, and in the frequency band of the noise there may be several specific frequencies of noise with particularly high frequencies or particularly loud volumes, in some embodiments, the depths of at least two sub-silencer chambers 3011 are the same or different, that is, when setting the depth of the silencer chamber 301, it can be set according to the wavelength of the noise of a specific frequency, and the noise of several specific frequencies can be eliminated. In addition, the sub-silencer chamber 3011 can also be set as a variable sub-silencer chamber 3011, so that the depth of the sub-silencer chamber 3011 can correspond to the frequency of all noises in the frequency band, thereby weakening the noise generated by the fan assembly 100 during operation and improving the user experience.

[0060] In some embodiments, during the operation of the fan assembly 100, the frequency of the noise of the fan assembly 100 is not a point value but a frequency band. Multiple sub-silencer chambers 3011 are set at different depths to correspond to multiple frequencies in the noise, which can correspond to weakening multiple frequencies of the noise and improve the silencing effect.

[0061] In some embodiments, the depths of multiple sub-silence chambers 3011 may be the same, or the depths of multiple sub-silence chambers 3011 may be different, or the depths of some sub-silence chambers 3011 may be the same, and the depths of some sub-silence chambers 301 may be different.

[0062] In some embodiments, the depth of the sub-muffler cavity 3011 is related to a quarter wavelength of the noise, and one depth of the sub-muffler cavity 3011 can weaken the noise of one frequency. If the depths of at least two sub-muffler cavities 3011 are different, it means that at least two or more frequencies of noise can be weakened. In the entire frequency band of the noise, there may be several noises with a large volume or a large frequency. When the depth of the sub-muffler cavity 3011 can be set to multiple different depths, the depth of the sub-muffler cavity 3011 can be set to an odd multiple of a quarter wavelength of the noise with the largest volume, or an odd multiple of a quarter wavelength of the noise with the largest frequency, and can also be set according to actual needs.

[0063] In some embodiments, the shapes of multiple sub-silencer cavities 3011 may be the same or different. The shapes of multiple sub-silencer cavities 3011 may be the same or different. The shapes of some sub-silencer cavities 3011 may be the same and the shapes of some sub-silencer cavities 3011 may be different.

[0064] In some embodiments, in order to ensure the stability of the connection between the connecting part 302, the first vibration damping part 303, the second vibration damping part 304 and the multiple partitions 305, the connecting part 302, the first vibration damping part 303, the second vibration damping part 304 and the multiple partitions 305 are integrally formed, which also reduces the processing cost.

[0065] In some embodiments, in order to further ensure the structural strength of the vibration damping part 30, when the number of the second vibration damping parts 304 is multiple, the multiple partitions 305 in the adjacent silencer chambers 301 are arranged in a staggered manner, that is, the partition 305 in one silencer chamber 301 of the adjacent silencer chambers 301 is located between two partitions 305 in another silencer chamber 301, so that the vibration generated by the fan 20 when working can be fully transmitted between the first vibration damping part 303 and the second vibration damping part 304, so that the first vibration damping part 303 and the second vibration damping part 304 both participate in the vibration damping process, ensuring that the first vibration damping part 303 and the second vibration damping part 304 can play a vibration damping role, thereby further improving the vibration damping effect.

[0066] See also Figure 3 , Figure 5 and Figure 6In some embodiments, in order to ensure that the first vibration damping part 303 is in full contact with the fan 20, and the second vibration damping part 304 is in full contact with the housing 10, the first vibration damping part 303 and the second vibration damping part 304 both have contact surfaces, and the contact surfaces are planes, curved surfaces, or arc surfaces. Among them, the contact surface of the first vibration damping part 303 fits with the fan 20, and the contact surface of the second vibration damping part 304 fits with the housing 10, that is, the contact surface is a smooth and continuous surface, which increases the contact area between the first vibration damping part 303 and the fan 80, and also increases the contact area between the second vibration damping part 304 and the housing 10, so that the first vibration damping part 303 and the second vibration damping part 304 can evenly bear the vibration impact force generated during the operation of the fan 20, with good vibration damping effect, and improve the user experience.

[0067] In some embodiments, when there are multiple second vibration damping parts 303 , the end surface of the outermost second vibration damping part 303 among the multiple second vibration damping parts 303 facing the housing 10 may be a contact surface.

[0068] See also Fig. 9 In some embodiments, in order to further ensure the vibration reduction effect, the number of the second vibration reduction parts 304 is multiple, and the multiple second vibration reduction parts 304 are arranged outside the first vibration reduction part 303 and are connected to the first vibration reduction part 303. That is, outside the first vibration reduction part 303, the multiple second vibration reduction parts 304 are arranged in a relatively independent circle. Among them, the first vibration reduction part 304 can be annular.

[0069] In some embodiments, when the fan 20 is working, the vibration generated by the fan 20 can be transmitted to the multiple second vibration damping parts 304 respectively through the first vibration damping part 303, so that the first vibration damping part 303 and the multiple second vibration damping parts 304 can transmit and absorb the vibration generated by the fan 20 when it is working layer by layer, thereby reducing the vibration that can be transmitted to the shell 10, achieving a good vibration damping effect and improving the user experience.

[0070] See also Fig. 9 In some embodiments, both ends of the second vibration damping part 304 can be connected to the first vibration damping part 303, and the end of the second vibration damping part 304 can be connected to the connecting part 302. There is a distance between the part between the two ends of the second vibration damping part 304 and the first vibration damping part 303 to form a silencer cavity 301. The silencer cavity 301 reduces noise and improves user experience.

[0071] See also Fig. 9 In some embodiments, along the radial direction of the fan, the cross-section of the second vibration damping portion 304 can be a semicircular surface, a semi-cylindrical surface, a curved surface, etc., which is not limited in the present application.

[0072] In some embodiments, in order to form the silencer cavity 301, the connection portion 302 is connected to the end of the first vibration damping portion 303 and the end of the second vibration damping portion 304. Of course, in some other embodiments, the connection portion 20 can be connected to the middle of the first vibration damping portion 303 and the middle of the second vibration damping portion 304, and the silencer cavity 301 can also be formed.

[0073] See also Figure 3 , Figure 4 , Figure 6 and Figure 8 In some embodiments, in order to further ensure the vibration reduction effect, the vibration reduction member 30 further includes: a third vibration reduction portion 306. The third vibration reduction portion 306 is connected to one of the first vibration reduction portion 303 and the connecting portion 302, so as to support the third vibration reduction portion 306 through one of the first vibration reduction portion 303 and the connecting portion 302. The third vibration reduction portion 306 is located between the top of the fan 20 and the top of the housing 10, and the first vibration reduction portion 303 and the second vibration reduction portion 304 are located between the side of the fan 20 and the side of the housing 10.

[0074] In some embodiments, the first vibration damping part 303 and the second vibration damping part 304 are disposed between the side of the fan 20 and the side of the housing 10. The first vibration damping part 303 and the second vibration damping part 304 can transmit and absorb the vibration generated by the side of the fan 20 when it is working, reducing the vibration that can be transmitted to the side of the housing 10, with a good vibration damping effect, and improving the user experience. The third vibration damping part 306 is disposed between the top of the fan 20 and the top of the housing 10. The third vibration damping part 306 can transmit and absorb the vibration generated by the top of the fan 20 when it is working, reducing the vibration that can be transmitted to the top of the housing 10, with a good vibration damping effect, and improving the user experience.

[0075] In some embodiments, the third vibration-absorbing portion 306 may be connected to the first vibration-absorbing portion 303. Of course, in some other embodiments, the third vibration-absorbing portion 306 may also be connected to the connecting portion 302.

[0076] In some embodiments, in order to further achieve vibration reduction, the third vibration reduction portion 306 has a support surface 3061 that is staggered from the first vibration reduction portion 303 and the connecting portion 302, and the support surface 3061 fits against the top of the fan 20, so that the support surface 3061 can be in close contact with the top of the fan 20, so that the third vibration reduction portion 306 can transmit and absorb the vibration generated at the top of the fan 20 when the fan 20 is working, thereby reducing the vibration that can be transmitted to the top of the shell 10, achieving a good vibration reduction effect and improving the user experience.

[0077] See also Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8In some embodiments, in order to further achieve vibration reduction, the housing 10 has a first boss 102, and the vibration reduction member 30 further includes: a fourth vibration reduction portion 307. The fourth vibration reduction portion 307 is arranged on the end surface of the third vibration reduction portion 306 away from the support surface 3061, and conflicts with the first boss 102. The first boss 102 is supported by the fourth vibration reduction portion 307 to ensure the stability of the installation of the housing 10. At the same time, the fourth vibration reduction portion 307 can transmit and absorb the vibration generated by the top of the fan 20 when it is working, reducing the vibration that can be transmitted to the first boss 102, and the vibration reduction effect is good, which improves the user experience.

[0078] See also Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 In some embodiments, in order to further achieve vibration reduction, the housing 10 has a second boss 103, and the vibration reduction member 30 further includes: at least two fifth vibration reduction parts 308. The at least two fifth vibration reduction parts 308 are arranged in parallel and spaced apart, and connected to the end surface of the third vibration reduction part 306 away from the support surface 3061. The second boss 103 is embedded between two adjacent fifth vibration reduction parts 308.

[0079] In some embodiments, by embedding the second boss 103 between two adjacent fifth vibration-damping parts 308, positioning can be achieved, which facilitates the assembly of the housing 10, reduces the difficulty of installation, and improves the efficiency of installation. At the same time, at least two fifth vibration-damping parts 308 can transmit and absorb the vibration generated by the top of the fan 20 when it is working, reducing the vibration that can be transmitted to the second boss 103, and the vibration-damping effect is good, which improves the user experience.

[0080] In some embodiments, the depth of the silencing cavity 301 is set according to the following formula:

[0081] f = (c / l)(2n+1) / 4;

[0082] Wherein, f is the frequency of the noise, c is the speed of sound of the noise, l is the depth of the silencing cavity 301, and n is zero or a positive integer.

[0083] According to the above formula, l=(c / f)(2n+1) / 4 can be obtained by deformation; wherein, the speed of sound of noise divided by the frequency of noise is equal to the wavelength of noise, and n is 0 or a positive integer, that is, the length of the silencing chamber 301 is equal to an odd multiple of one quarter wavelength of noise, then the depth of the silencing chamber 301 can be considered to be related to one quarter wavelength of noise, then the silencing chamber 301 can be considered to be a one quarter wavelength tube, when the noise in the air duct 101 enters the silencing chamber 301, it is reflected by the silencing chamber 301 and then propagates again to the connection between the silencing chamber 301 and the air duct 101, then the running length of the noise is exactly half wavelength, and there is a phase difference of 180 degrees between the noise and the noise in the air duct 101, and they can interfere with each other, so that the volume of the noise can be attenuated, thereby reducing the volume of the noise and improving the user experience.

[0084] In some embodiments, the depth of the silencing chamber 301 is set to an odd multiple of one quarter wavelength of the noise, so that the noise reflected by the silencing chamber 301 and the noise in the air duct 101 have a phase difference of 180 degrees. The two can interfere with each other after being superimposed, thereby achieving the purpose of noise reduction.

[0085] See also Figure 3 In some embodiments, the fan 20 has an air outlet 201, and the depth direction of the silencer cavity 301 is set at an angle to the air outlet direction of the air outlet 201, which means that the depth direction of the silencer cavity 301 is different from the air outlet direction of the fan 20. In the process of noise flowing with the air flow, when the noise flows to the silencer cavity 301, it will enter the silencer cavity 301, generate resonance in the silencer cavity 301, and achieve the purpose of silence, or the noise moves to the bottom wall of the silencer cavity 301 and then reflects, and finally returns to the air duct 101, superimposed with the noise in the air duct 101, and then achieves the purpose of silence, or in the process of entering the silencer cavity 301, the energy of the noise is weakened by perforation to achieve the purpose of silence.

[0086] In some embodiments, the depth direction of the silencer chamber 301 is set at an angle to the air outlet direction of the air duct 101, and the angle range is (0°, 180°), which can be 30°, 45°, 90°, 135°, 150°, etc.

[0087] See also Fig.10 According to a second aspect of the present application, a cleaning device 1000 is provided, comprising the fan assembly 100 .

[0088] In some embodiments, the cleaning device may be a floor scrubber, a vacuum cleaner, a sweeper, etc., which is not limited in the embodiments of the present application.

[0089] A third embodiment of the present application provides a cleaning system, including a cleaning base station and the cleaning device 1000.

[0090] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0091] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0092] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0093] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0094] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0096] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0097] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fan assembly, characterized in that: include: A housing having an air duct; A fan is arranged in the housing; The vibration-damping component is arranged between the housing and the fan and has a silencer cavity communicated with the air duct, and the silencer cavity can reduce noise.

2. The fan assembly according to claim 1, characterized in that: The vibration damping member comprises: A connecting portion, provided between the housing and the fan; A first vibration-damping portion connected to the connecting portion; The second vibration reduction part is arranged outside the first vibration reduction part and is connected with the connecting part to form the silencing chamber.

3. The fan assembly according to claim 2, characterized in that: The number of the second vibration damping part is at least one. Along the radial direction of the fan, the first vibration damping part and the second vibration damping part are arranged in sequence and spaced apart, and the first vibration damping part is arranged inside the second vibration damping part.

4. The fan assembly according to claim 3, characterized in that: When there are multiple second vibration damping parts, the multiple second vibration damping parts are sequentially arranged at intervals along the radial direction of the fan, and two adjacent second vibration damping parts are arranged one inside the other.

5. The fan assembly according to claim 3, characterized in that: The vibration damping member further comprises: A plurality of partitions are arranged in parallel and at intervals in the silencing chamber, and are connected to the connecting portion, the first vibration reduction portion, and the second vibration reduction portion to form a plurality of sub-silencing chambers.

6. The fan assembly according to claim 5, characterized in that: The depths of at least two of the sub-muffler cavities are the same or different.

7. The fan assembly according to claim 5, characterized in that: The connecting portion, the first vibration damping portion, the second vibration damping portion, and the plurality of partitions are integrally formed.

8. The fan assembly according to claim 5, characterized in that: When there are multiple second vibration-damping parts, the multiple partitions in adjacent silencing chambers are arranged in a staggered manner.

9. The fan assembly according to claim 3, characterized in that: The first vibration reduction part and the second vibration reduction part both have a contact surface, and the contact surface is a plane, a curved surface or an arc surface; Wherein, the contact surface of the first vibration-damping part is in contact with the fan, and the contact surface of the second vibration-damping part is in contact with the shell.

10. The fan assembly according to claim 2, characterized in that: There are multiple second vibration damping parts, and the multiple second vibration damping parts are arranged outside the first vibration damping part and are all connected to the first vibration damping part.

11. The fan assembly according to any one of claims 2 to 10, characterized in that: The connection portion is connected to an end portion of the first vibration damping portion and an end portion of the second vibration damping portion.

12. The fan assembly according to any one of claims 2 to 10, characterized in that: The vibration damping member further comprises: a third vibration-damping portion connected to one of the first vibration-damping portion and the connecting portion; The third vibration damping part is located between the top of the fan and the top of the housing, and the first vibration damping part and the second vibration damping part are located between the side of the fan and the side of the housing.

13. The fan assembly according to claim 12, characterized in that: The third vibration-damping part has a supporting surface which is staggered from the first vibration-damping part and the connecting part, and the supporting surface is in contact with the top of the fan.

14. The fan assembly according to claim 13, characterized in that: The housing has a first boss, and the vibration damping member further comprises: The fourth vibration-damping part is arranged on the end surface of the third vibration-damping part away from the supporting surface and contacts the first boss.

15. The fan assembly according to claim 13, characterized in that: The housing has a second boss, and the vibration damping member further comprises: at least two fifth vibration-damping parts, arranged in parallel and spaced apart from each other, and connected to the end surface of the third vibration-damping part facing away from the supporting surface; Wherein, the second boss is embedded between two adjacent fifth vibration-damping parts.

16. The fan assembly according to any one of claims 1 to 10, characterized in that: The depth of the muffler cavity is set according to the following formula: f = (c / l)(2n+1) / 4; Where f is the frequency of the noise, c is the speed of sound of the noise, 1 is the depth of the anechoic cavity, and n is zero or a positive integer.

17. The fan assembly according to any one of claims 1 to 10, characterized in that: The fan has an air outlet, and the depth direction of the silencing cavity is arranged at an angle to the air outlet direction of the air outlet.

18. A cleaning device, characterized in that: Comprising a fan assembly as described in any one of claims 1-17.

19. A cleaning system, characterized in that: It comprises a cleaning base station and the cleaning device as claimed in claim 18.

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