Fan assembly and cleaning equipment

Abstract

The utility model provides a fan assembly and cleaning equipment, and relates to the technical field of cleaning equipment. The fan assembly comprises a fan provided with a plurality of first connecting parts at intervals; the fan shell is arranged outside the fan, and a plurality of second connecting parts are arranged on the fan shell at intervals; the first connecting parts and the second connecting parts are fixedly connected through the first vibration reduction connecting structures; wherein the first vibration reduction connecting structure comprises a first vibration reduction piece, a second vibration reduction piece and a first connecting piece, the first vibration reduction piece is connected between the first connecting part and the second connecting part in an abutting mode, the second vibration reduction piece is connected between the second connecting part and the first connecting piece in an abutting mode, and the first connecting piece is connected with the first connecting part. According to the draught fan assembly, the stress area for transmitting vibration to the whole machine is small, the installation vibration isolation rate of the draught fan assembly is high, and the vibration noise of the cleaning equipment can be reduced.

Description

Technical Field

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

[0002] With the development of science and technology and the improvement of people's quality of life, cleaning equipment is increasingly used in people's lives.

[0003] Since the fan of the cleaning equipment will vibrate during operation, the cleaning equipment usually has a vibration reduction structure designed for the fan. At present, the fan in the cleaning equipment is wrapped with a vibration reduction pad at the air inlet end and the circuit board end (or the middle part) of the fan, and then the fan is installed in the whole machine to reduce the intensity of the vibration transmitted by the fan.

[0004] However, the existing fan vibration reduction structure still has the problem of low vibration isolation rate, which leads to high vibration intensity and vibration noise of the cleaning equipment. Utility Model Content

[0005] The present application provides a fan assembly and a cleaning device. The force bearing area of ​​the fan assembly for transmitting vibration to the whole machine is small, and the installation vibration isolation rate of the fan assembly is high, which can reduce the vibration noise of the cleaning device.

[0006] One aspect of the present application provides a fan assembly, comprising:

[0007] A fan is provided with a plurality of first connecting parts at intervals;

[0008] A fan casing is arranged outside the fan, and a plurality of second connecting parts are arranged at intervals on the fan casing;

[0009] A plurality of first vibration-damping connection structures, wherein the first vibration-damping connection structures fixedly connect the first connection part and the second connection part;

[0010] The first vibration damping connection structure includes a first vibration damping member, a second vibration damping member and a first connecting member. The first vibration damping member abuts between the first connecting portion and the second connecting portion. The second vibration damping member abuts between the second connecting portion and the first connecting member. The first connecting member is connected to the first connecting portion.

[0011] The fan assembly provided by the present application includes a fan and a fan casing sleeved outside the fan, and a plurality of first connecting parts are arranged at intervals on the fan, and a plurality of second connecting parts are arranged at intervals on the fan casing, so that each second connecting part corresponds to each first connecting part one by one, and a first vibration reduction connection structure is connected between each first connecting part and each second connecting part, so that the fan vibration reduction is installed in the fan casing. Among them, the first vibration reduction connection structure includes a first vibration reduction member, a second vibration reduction member and a first connecting member, and the first vibration reduction member is abutted between the first connecting part and the second connecting part, and the second vibration reduction member is abutted between the second connecting part and the first connecting member, and the first connecting member is connected to the first connecting member, so that the vibration reduction connection between the fan and the fan casing is realized on the basis that the fan and the fan casing, and the fan casing and the first connecting member are not in direct contact. In this way, the force bearing area of ​​the first vibration reduction connection structure for transmitting vibration is small, and the transmission speed of the vibration energy is slowed down, so that it is easier to be absorbed or scattered by the vibration reduction itself, thereby achieving the purpose of high installation vibration isolation rate of the fan assembly, and at the same time reducing the vibration noise of the cleaning equipment. Furthermore, the first vibration-damping connection structure occupies a small space, which helps to miniaturize the fan assembly and is suitable for application scenarios with limited space.

[0012] In a possible implementation manner, the second connecting portion is provided with a first assembly hole, and at least one of the first connecting portion and the first connecting member passes through the first assembly hole.

[0013] By opening the first assembly hole on the second connection part, at least one of the first connection part and the first connection member passes through the first assembly hole to achieve contact between the first connection part and the first connection member, thereby achieving connection between the first connection part and the first connection member.

[0014] In a possible implementation manner, the first connection portion includes a first connection column protruding on the outer wall surface of the fan, and the first connection member is connected to the first connection column;

[0015] Wherein, at least the first vibration damping member is sleeved outside the first connecting column.

[0016] By arranging a raised first connecting column on the outer wall surface of the fan, and connecting the first connecting column and the first connecting member, the fan and the fan housing are fixedly connected. Since the first connecting column is raised on the outer wall surface of the fan, the first vibration damping member can be at least sleeved outside the first connecting column, which is conducive to the limited installation of the first vibration damping member.

[0017] In a possible implementation manner, the first connecting column passes through the first assembly hole and extends out of the fan housing;

[0018] Wherein, the first vibration damping member and the second vibration damping member are both sleeved outside the first connecting column.

[0019] By providing a first connecting column with a larger extension length, the first connecting column is extended through the first assembly hole to the outside of the fan housing, which facilitates the connection between the first connecting member and the first connecting column and is conducive to the positioning of the fan, so that the first connecting member and the fan can be firmly connected. Since the first connecting column extends out of the fan housing, the first vibration damping member and the second vibration damping member can be sleeved outside the first connecting column.

[0020] In a possible implementation manner, one of the first connecting column and the first connecting member has an external thread, and the other has an internal thread, and the first connecting column is threadedly connected to the first connecting member.

[0021] In a possible implementation manner, the first connection portion includes a first connection hole opened on the fan, and the first connection member passes through the first assembly hole and extends into the first connection hole;

[0022] The first connecting member passes through the second vibration damping member and the first vibration damping member in sequence.

[0023] When the air guide cover of the fan has sufficient thickness / volume at the location of the first connection part, a first connection hole can also be opened on the first connection part, so that the first connection member passes through the first assembly hole and extends into the first connection hole to achieve the connection between the first connection member and the first connection part. In this case, the first connection member can pass through the second vibration damping member and the first vibration damping member in sequence and extend into the first connection hole.

[0024] In a possible implementation, the hole wall of the first connecting hole is provided with an internal thread, the outer side wall of the first connecting member is provided with an external thread matching the internal thread, and the first connecting member is threadedly connected in the first connecting hole.

[0025] In a possible implementation manner, the second connecting portion includes a partition portion, and the first vibration dampening member and the second vibration dampening member are separated on both sides of the partition portion.

[0026] By arranging a partition portion on the fan casing and utilizing the partition portion to separate the first vibration damper and the second vibration damper on both sides thereof, the first vibration damper can be supported between the fan and the partition portion, and direct contact between the partition portion and the first connecting member can be avoided, thereby helping to reduce the transmission of fan vibration to the fan casing.

[0027] In a possible implementation manner, the second connection portion further includes a surrounding plate portion, which is connected to a side of the partition portion facing away from the fan, and the surrounding plate portion is arranged around the partition portion;

[0028] The enclosing plate portion and the partition plate portion together form a mounting groove, and the second vibration damping member is at least partially located in the mounting groove.

[0029] By arranging a surrounding plate portion on the peripheral side of the partition portion, and using the surrounding plate portion and the partition portion to jointly form a mounting groove, the second vibration damper can be positioned to confine the second vibration damper in the mounting groove. It is ensured that the second vibration damper can abut between the partition portion and the first connecting member, and ensure that the second vibration damper plays a role in isolating the first connecting member and the fan housing.

[0030] In a possible implementation, along the circumference of the enclosure portion, the enclosure portion includes a first wall and a second wall that are connected, and a connection between the first wall and the second wall is a turning angle, or the first wall and the second wall transition smoothly.

[0031] By forming a turning angle at the connection between the first wall and the second wall, the turning angle has a stop effect on the side wall of the second vibration damper, and the second vibration damper can be positioned to prevent the second vibration damper from shifting or rotating, so as to ensure the stability and reliability of the second vibration damper. Alternatively, by making the first wall and the second wall transition smoothly, the second vibration damper can rotate in the installation groove, and the orientation of the second vibration damper does not need to be adjusted during installation, which facilitates the installation of the second vibration damper.

[0032] In a possible implementation manner, the first connection portions are arranged at intervals along the circumferential direction on the outer periphery of the air inlet of the fan.

[0033] By arranging the first connection parts at intervals along the circumferential direction on the outer periphery of the air inlet of the fan, for the fan installed in the fan casing in the gravity direction, the first vibration reduction connection structures can be supported between the wind guide cover and the fan casing. At this time, the first vibration reduction connection structures play both a supporting role and a connecting role, which can ensure that the fan is stably and reliably installed in the fan casing.

[0034] In a possible implementation manner, the first connection portions are evenly spaced along the circumference of the fan.

[0035] By arranging the first connection parts evenly spaced along the circumference of the fan and the first vibration-damping connection structures evenly spaced along the circumference of the fan, force balance between the fan and the fan casing can be ensured, thereby improving the stability and reliability of the fan installation.

[0036] In a possible implementation, the fan includes:

[0037] Fan body;

[0038] The wind guide cover is sleeved on the outer periphery of the fan body and forms an air duct with the fan body;

[0039] Wherein, the first connecting portion is arranged on the air guide cover.

[0040] In a possible implementation manner, the thickness of the first vibration damping component is greater than the thickness of the second vibration damping component.

[0041] By making the thickness of the first vibration damper greater than the thickness of the second vibration damper, the thickness of the first vibration damper is increased, the structural strength of the first vibration damper is enhanced, and the reliability requirement of the first vibration damper supporting the fan is met.

[0042] In a possible implementation manner, a vibration damping groove is provided on an outer wall surface of at least one of the first vibration damping member and the second vibration damping member.

[0043] By arranging a vibration-absorbing groove on the outer wall surface of the first vibration damper (and / or the second vibration damper), the deformation capacity of the first vibration damper (and / or the second vibration damper) is enhanced, the ability of the first vibration damper (and / or the second vibration damper) to cushion and absorb vibration is enhanced, and the vibration damping performance of the first vibration damping connection structure is improved.

[0044] In a possible implementation manner, the vibration-damping groove includes at least one of an end surface vibration-damping groove and a side surface vibration-damping groove;

[0045] The end surface vibration damping groove is arranged on the end surface of at least one of the first vibration damping member and the second vibration damping member, and the side surface vibration damping groove is arranged on the side wall of at least one of the first vibration damping member and the second vibration damping member.

[0046] By providing an end surface vibration-absorbing groove on the end surface of the first vibration-damping member (and / or the second vibration-damping member), the end surface vibration-absorbing groove can occupy the circumferential portion on the end surface of the first vibration-damping member (and / or the second vibration-damping member), and has a relatively uniform vibration-damping and noise-reducing effect. By providing a side vibration-absorbing groove on the side wall of the first vibration-damping member (and / or the second vibration-damping member), it is beneficial to the deformation of the edge of the first vibration-damping member (and / or the second vibration-damping member), enhances the deformation capacity of the first vibration-damping member (and / or the second vibration-damping member), and strengthens the vibration-damping and noise-reducing effect of the first vibration-damping member (and / or the second vibration-damping member).

[0047] In a possible implementation, at least one of the first vibration damping member and the second vibration damping member is provided with a plurality of vibration damping holes extending along the thickness direction.

[0048] By setting vibration-absorbing holes on the first vibration damper (and / or the second vibration damper), the deformation capacity of the first vibration damper (and / or the second vibration damper) can be enhanced, the ability of the first vibration damper (and / or the second vibration damper) to cushion and absorb vibrations can be enhanced, the vibration damping performance of the first vibration damping connection structure can be improved, the installation vibration isolation rate of the fan assembly can be improved, and the vibration noise of the cleaning equipment can be reduced.

[0049] In a possible implementation, a plurality of circles of vibration damping holes are arranged at intervals from the center of the first vibration damping member to the edge of the first vibration damping member, and the vibration damping holes are arranged at even intervals along the circumference of the first vibration damping member; and / or,

[0050] A plurality of circles of vibration damping holes are arranged at intervals from the center of the second vibration damping member to the edge of the second vibration damping member, and the vibration damping holes are evenly arranged at intervals along the circumference of the second vibration damping member.

[0051] By setting multiple circles of vibration damping holes from the center of the first vibration damper (and / or the second vibration damper) to the edge of the first vibration damper (and / or the second vibration damper), and making the vibration damping holes evenly spaced along the circumferential direction, the number of vibration damping holes set in the first vibration damper (and / or the second vibration damper) is large and evenly distributed, the first vibration damper (and / or the second vibration damper) has strong deformation ability and good vibration damping performance, and is conducive to the force balance of the first vibration damper (and / or the second vibration damper).

[0052] In a possible implementation manner, at least part of the vibration-absorbing holes are through holes, or at least part of the vibration-absorbing holes are blind holes.

[0053] In a possible implementation, the first vibration damping member is an integral member, or the first vibration damping member includes two or more stacked first vibration damping sheets;

[0054] The second vibration damping member is a one-piece member, or the second vibration damping member includes two or more stacked second vibration damping sheets.

[0055] Another aspect of the present application provides a cleaning device, comprising: a main housing and a fan assembly as described above, wherein the fan assembly is mounted on the main housing.

[0056] The cleaning equipment provided by the present application includes a fan assembly, which includes a fan and a fan casing mounted outside the fan. A plurality of first connecting parts are arranged at intervals on the fan, and a plurality of second connecting parts are arranged at intervals on the fan casing, so that each second connecting part corresponds to each first connecting part one by one, and a first vibration-damping connecting structure is connected between each first connecting part and each second connecting part, so that the fan is installed in the fan casing with vibration reduction. Among them, the first vibration-damping connecting structure includes a first vibration-damping member, a second vibration-damping member and a first connecting member. The first vibration-damping member is abutted between the first connecting part and the second connecting part, and the second vibration-damping member is abutted between the second connecting part and the first connecting member, and the first connecting member is connected to the first connecting member, so that the fan and the fan casing are not in direct contact, and the vibration-damping connection between the fan and the fan casing is realized. In this way, the force bearing area of ​​the first vibration-damping connecting structure for transmitting vibration is small, the installation vibration isolation rate of the fan assembly is high, and the vibration noise of the cleaning equipment can be reduced. Furthermore, the first vibration-damping connection structure occupies a small space, which helps to miniaturize the fan assembly and is suitable for application scenarios with limited space.

[0057] In a possible implementation, the cleaning device further includes a plurality of second vibration-damping connection structures, and the second vibration-damping connection structures fixedly connect the fan casing of the fan assembly and the main casing.

[0058] By setting a plurality of second vibration reduction connection structures between the fan housing and the main housing, the fan housing and the main housing as a whole are not in direct contact. In this way, the fan and the fan housing are indirectly in contact through the first vibration reduction connection structure, and the fan housing and the main housing are indirectly in contact through the second vibration reduction connection structure, which can achieve secondary vibration reduction of the fan assembly, further improve the installation vibration isolation rate of the fan assembly, enhance the shock absorption effect of the fan assembly, and reduce the vibration noise of the cleaning equipment.

[0059] In a possible implementation manner, a plurality of third connection parts are provided at intervals on the fan housing, a plurality of fourth connection parts are provided at intervals on the main housing, and the second vibration-damping connection structure is connected between the third connection parts and the fourth connection parts;

[0060] The second vibration damping connection structure includes a third vibration damping member, a fourth vibration damping member and a second connection member, the third vibration damping member abuts between the third connection part and the fourth connection part, the fourth vibration damping member abuts between the third connection part and the second connection member, and the second connection member is connected to the fourth connection part.

[0061] By arranging a third vibration damper between the third connection part and the fourth connection part, the third vibration damper can separate the third connection part from the fourth connection part. By arranging a fourth vibration damper between the third connection part and the second connection part, the fourth vibration damper can separate the third connection part from the second connection part. In this way, the vibration damping connection between the fan housing and the main housing is achieved, and the vibration intensity of the fan assembly is reduced. In addition, the force bearing area of ​​the second vibration damping connection structure for transmitting vibration is small, and the installation vibration isolation rate of the fan assembly is high, which can reduce the vibration noise of the cleaning equipment.

[0062] In a possible implementation manner, the third connecting portion is provided with a second assembly hole, and at least one of the fourth connecting portion and the second connecting member passes through the second assembly hole.

[0063] By opening the second assembly hole on the third connection part, at least one of the fourth connection part and the second connection member is passed through the second assembly hole to achieve contact between the fourth connection part and the second connection member, thereby achieving connection between the fourth connection part and the second connection member. When the fourth connection part and the second connection member are assembled, it is advantageous to pre-position them, facilitating the connection operation of the fourth connection part and the second connection member.

[0064] In a possible implementation, the fourth connection portion includes a second connection column protruding from the inner wall surface of the main housing, and the second connection member is connected to the second connection column;

[0065] Wherein, at least the third vibration damping member is arranged outside the second connecting column.

[0066] By providing a raised second connection column on the inner wall surface of the main housing, and connecting the second connection column with the second connection member, the main housing and the fan housing are fixedly connected. Since the second connection column is raised on the inner wall surface of the main housing, at least the third vibration damping member can be sleeved outside the second connection column. This is beneficial to reduce the transmission of the vibration of the fan housing to the main housing.

[0067] In a possible implementation manner, the second connecting column passes through the second assembly hole, and the third vibration damping member and the fourth vibration damping member are both sleeved outside the second connecting column.

[0068] By providing a second connecting column with a larger extension length, the second connecting column passes through the second assembly hole and extends toward the fan housing, which facilitates the connection between the second connecting member and the second connecting column, and is beneficial to the positioning of the fan housing, so that the second connecting member can be firmly connected to the main housing. Since the second connecting column passes through the second assembly hole, the third vibration damping member and the fourth vibration damping member can be sleeved outside the second connecting column from the perspective of installation and positioning.

[0069] In a possible implementation, one of the second connecting column and the second connecting member has an external thread, and the other has an internal thread matching the external thread, and the second connecting column is threadedly connected to the second connecting member.

[0070] In a possible implementation, the fourth connection portion includes a second connection hole opened on the inner wall of the main housing, and the second connection member passes through the second assembly hole and extends into the second connection hole;

[0071] The second connecting member passes through the fourth vibration damping member and the third vibration damping member in sequence.

[0072] When the main housing has a sufficient volume at the location of the fourth connection part, a second connection hole can also be opened on the fourth connection part, so that the second connection member passes through the second assembly hole and extends into the second connection hole to achieve the connection between the second connection member and the fourth connection part. In this case, the second connection member can pass through the fourth vibration damping member and the third vibration damping member in sequence and extend into the second connection hole.

[0073] In a possible implementation, the hole wall of the second connecting hole is provided with an internal thread, the outer side wall of the second connecting member is provided with an external thread, and the second connecting member is threadedly connected in the second connecting hole.

[0074] In a possible implementation manner, the third vibration damping member is an integral member, or the third vibration damping member includes two or more stacked third vibration damping sheets;

[0075] The fourth vibration damping member is an integral member, or the fourth vibration damping member includes two or more stacked fourth vibration damping sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. 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.

[0077] Figure 1 A cross-sectional view of a fan installation structure of a cleaning device in the related art;

[0078] Figure 2 A schematic diagram of the structure of a fan assembly provided in Example 1 of the present application;

[0079] Figure 3 for Figure 2 Exploded structural diagram of the fan assembly in;

[0080] Figure 4 for Figure 2 A cross-sectional view of the fan assembly along line AA;

[0081] Figure 5 This is an assembly structure diagram of the air guide cover and the lower shell provided in Example 1 of the present application;

[0082] Figure 6 for Figure 5 The exploded structural diagram of the air guide cover and the lower shell;

[0083] Figure 7 for Figure 5 Sectional view along the midline BB;

[0084] Figure 8 A schematic structural diagram of the lower shell of the fan housing provided in the first embodiment of the present application;

[0085] Fig. 9 A schematic diagram of the structure of the air guide cover provided in Example 1 of the present application;

[0086] Fig.10 A schematic diagram of the structure of the first vibration damping member (or the second vibration damping member) provided in the first embodiment of the present application;

[0087] Fig.11 A partial structural diagram of a cleaning device provided in Example 2 of the present application;

[0088] Fig.12 for Fig.11 Exploded structure diagram of cleaning equipment in;

[0089] Fig.13 for Fig.12 A cross-sectional view of the cleaning device along line CC;

[0090] Fig.14 A structural diagram of a fan assembly from one perspective provided in Embodiment 3 of the present application;

[0091] Fig.15 A structural diagram of a fan assembly from another perspective provided in Embodiment 3 of the present application;

[0092] Fig.16 for Fig.14 A cross-sectional view of the fan assembly along line DD;

[0093] Fig.17 A partial structural diagram of a cleaning device provided in Example 4 of the present application;

[0094] Fig.18 for Fig.17 Exploded structure diagram of cleaning equipment in;

[0095] Fig.19 for Fig.17 A schematic diagram of the structure of a fan assembly in a cleaning device;

[0096] Fig. 20 for Fig.17 Partial structural diagram of the cleaning equipment in;

[0097] Fig.21 for Fig. 20 Cross-sectional view along line EE. DETAILED DESCRIPTION

[0098] Figure 1 This is a cross-sectional view of a fan installation structure of a cleaning device in the related art. Figure 1 As shown, the figure shows a partial structure of a cleaning device in the related art, mainly showing a fan installation structure. Among them, the fan 1 is provided with a fan casing 2 (only a partial structure of the fan casing 2 is schematically shown in the figure), and the fan 1 is installed and fixed in the cleaning device through the fan casing 2. The fan 1 includes a fan body 11 and an air guide cover 12 sleeved outside the air inlet end of the fan body 11, and an air duct is formed between the air guide cover 12 and the fan body 11.

[0099] As described in the background technology, the vibration reduction installation method of the cleaning equipment in the related technology is usually to clamp and install the vibration reduction sleeves 3 at both ends of the fan 1, and use the two vibration reduction sleeves 3 to partially wrap the front end (air inlet end) and the rear end (or middle part) of the fan 1 respectively, and clamp the two vibration reduction sleeves 3 through the fan casing 2. In this way, the two vibration reduction sleeves 3 are clamped between the fan 1 and the fan casing 2, and the buffering effect of the vibration reduction sleeves 3 is used to achieve the purpose of vibration reduction. (It should be noted that Figure 1 In the figure, only the vibration damping sleeve 3 between the air guide cover 12 at the air inlet end of the fan 1 and the fan housing 2 is shown, while the vibration damping sleeve 3 wrapped around the rear end (or middle part) of the fan 1 is omitted.

[0100] However, in this vibration-damping installation method, the contact area between the vibration-damping sleeve 3 and the fan 1, and between the vibration-damping sleeve 3 and the fan housing 2 is large, the force-bearing area of ​​vibration transmission is large, the installation vibration isolation rate is not high, and the vibration transmitted to the whole machine is large. As a result, the vibration intensity and vibration noise of the whole cleaning equipment are large. In addition, the two vibration-damping sleeves 3 occupy a large space, which is not conducive to the miniaturized design of the fan installation structure and is not suitable for application scenarios with narrow space.

[0101] In view of this, an embodiment of the present application provides a fan assembly and a cleaning device, wherein the fan assembly includes a fan and a fan casing sleeved outside the fan, and a plurality of first connecting parts are arranged at intervals on the fan, and a plurality of second connecting parts are arranged at intervals on the fan casing, so that each second connecting part corresponds to each first connecting part, and a first vibration reduction connection structure is connected between each first connecting part and each second connecting part, so that the fan is installed in the fan casing with vibration reduction. Among them, the first vibration reduction connection structure includes a first vibration reduction member, a second vibration reduction member and a first connecting member, and the first vibration reduction member is abutted between the first connecting part and the second connecting part, and the second vibration reduction member is abutted between the second connecting part and the first connecting member, and the first connecting member is connected to the first connecting member, so that the fan and the fan casing are not in direct contact, and the vibration reduction connection between the fan and the fan casing is achieved. In this way, the force bearing area of ​​the first vibration reduction connection structure for transmitting vibration is small, the installation vibration isolation rate of the fan assembly is high, and the vibration noise of the cleaning equipment can be reduced. Furthermore, the first vibration-damping connection structure occupies a small space, which helps to miniaturize the fan assembly and is suitable for application scenarios with limited space.

[0102] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 creative work are within the scope of protection of this application.

[0103] An embodiment of the present application provides a cleaning device, which includes but is not limited to a vacuum cleaner, a floor scrubber or a floor sweeper.

[0104] Embodiment 1

[0105] Figure 2 A schematic structural diagram of a fan assembly provided in Example 1 of the present application. Figure 3 for Figure 2 Exploded structure diagram of the fan assembly in FIG. Figure 4 for Figure 2 A cross-sectional view of the fan assembly along line AA.

[0106] Reference Figure 2As shown, Figure 2 , a fan assembly 10 in a cleaning device is shown, and the fan assembly 10 is used to increase fluid pressure to help the cleaning device achieve dust removal, dirt suction and other functions. It should be noted that the cleaning device may also include a host (not shown in the figure), the host includes a main housing 20, and the fan assembly 10 is installed on the main housing 20.

[0107] Combination Figure 3 and Figure 4 As shown, the fan assembly 10 includes a fan 100 and a fan housing 200. The fan 100 is the core functional component of the fan assembly 10. The fan 100 increases the gas pressure and transports the gas by inputting mechanical energy. The fan housing 200 is arranged outside the fan 100, and is used to support and position the fan 100, and as a basic installation structure, fixes the fan 100 on the main housing 20.

[0108] The fan assembly 10 has an air inlet 203 and an air outlet 204, both of which are connected to the outside, and an air duct is formed between the air inlet 203 and the air outlet 204. The air inlet 203 of the fan assembly 10 is used to inhale gas, and the gas flows along the air duct to the air outlet 204 of the fan assembly 10 and is discharged from the air outlet 204.

[0109] The fan 100 may include a fan body 110 and an air guide cover 120, wherein the air guide cover 120 is sleeved on the outer periphery of the fan body 110, and the air guide cover 120 is connected to the fan housing 200 located outside thereof. An air duct is formed between the air guide cover 120 and the fan body 110, one end of the air duct is connected to the air inlet 203 of the fan assembly 10, and the other end of the air duct is connected to the air outlet 204 of the fan assembly 10. The fan body 110 is used to output mechanical energy, which can increase the gas pressure in the air duct to achieve the purpose of conveying gas through the air duct.

[0110] Exemplarily, the fan body 110 may include a control component, a motor (the control component and the motor are not shown in the figure) and an impeller 111. The control component is, for example, a circuit board. The motor is electrically connected to the control component, and the control component controls the operation of the motor. The impeller 111 is connected to the motor, and the motor drives the impeller 111 to rotate to generate mechanical energy.

[0111] It is understandable that, due to the different structures of different cleaning devices, the types and shapes of the fan assemblies 10 configured in different cleaning devices may also be different. In other words, the fan assemblies 10 used in different cleaning devices may have different types and shapes of the fan 100, and the shapes of the fan housing 200 may also be different. The embodiments of the present application do not impose specific restrictions on this.

[0112] For example, in the fan assembly 10 of different cleaning equipment configurations, the fan housing 200 is completely surrounded by the outside of the fan 100, the fan 100 is completely located in the fan housing 200, and the air inlet 203 and the air outlet 204 of the fan assembly 10 can be arranged on the fan housing 200. In this case, the air inlet 101 of the fan 100 is connected to the air inlet 203 on the fan housing 200, and the air outlet 102 of the fan 100 is connected to the air outlet 204 on the fan housing 200. Alternatively, the fan housing 200 is half-surrounded by the outside of the fan 100, and the fan 100 is partially exposed outside the fan housing 200, for example, the air inlet 101 and the air outlet 102 of the fan 100 can be exposed outside the fan housing 200. At this time, the air inlet 101 of the fan 100 serves as the air inlet portion 203 of the fan assembly 10 , and the air outlet 102 of the fan 100 serves as the air outlet portion 204 of the fan assembly 10 .

[0113] Furthermore, whether the fan casing 200 is completely surrounded by the outside of the fan 100 or half surrounded by the outside of the fan 100, when the fan casing 200 is assembled on the main casing 20, the fan casing 200 can be completely contained inside the main casing 20, or the fan casing 200 can also be at least partially exposed outside the main casing 20. The fan casing 200 as a whole can be an independent structure, and the fan casing 200 is detachably mounted on the main casing 20. Alternatively, at least part of the structure of the fan casing 200 is integrally formed on the main casing 20, in other words, the main casing 20 is used to form at least part of the fan casing 200.

[0114] In addition, for the fan 100 of different fan assemblies 10, the wind guide 120 can be half-surrounded by the outside of the fan body 110, for example, the wind guide 120 is arranged around the air inlet end of the fan body 110. In this case, the wind guide 120 and the fan body 110 together form a part of the air duct, and the other part of the air duct can be formed by the fan body 110 itself. Alternatively, the wind guide 120 can also be fully surrounded by the outer periphery of the fan body 110, and the wind guide 120 and the fan body 110 together form the whole air duct.

[0115] Combination Figure 3 and Figure 4 As shown, in this embodiment, the fan assembly 10 is used in a vacuum cleaner as an example, or in other words, the cleaning device equipped with the fan assembly 10 can be a vacuum cleaner. Exemplarily, the fan assembly 10 can be an axial flow fan or a diagonal flow fan.

[0116] Specifically, the fan housing 200 of the fan assembly 10 is completely surrounded by the fan 100, and the fan housing 200 is provided with an air inlet 203 and an air outlet 204. The air inlet 101 of the fan 100 corresponds to and is connected with the air inlet 203 on the fan housing 200, and the air outlet 102 of the fan 100 corresponds to and is connected with the air outlet 204 on the fan housing 200. In addition, the air guide cover 120 is half-surrounded by the outside of the fan body 110, and the air guide cover 120 is specifically arranged around the air inlet end of the fan body 110, which is equivalent to the air guide cover 120 surrounding the air inlet 101 of the fan 100.

[0117] When the fan assembly 10 is installed on the cleaning device, the air inlet 203 of the fan assembly 10 can be downward toward the bottom of the cleaning device. At this time, the air inlet 101 of the fan 100 is downward and connected to the air inlet 203 on the fan housing 200, and the fan 100 is supported in the fan housing 200 along the gravity direction.

[0118] The fan housing 200 may include an upper housing 201 and a lower housing 202, the upper housing 201 and the lower housing 202 are connected together, and the two together enclose a receiving cavity, and the fan 100 is installed in the receiving cavity. The air inlet 203 may be arranged at the bottom end of the lower housing 202, and the fan 100 may be supported in the lower housing 202 by the air guide cover 120. The air outlet 204 may be arranged on the upper housing 201, for example, the air outlet 204 is arranged on the side wall of the upper housing 201.

[0119] Continue to refer to Figure 3 and Figure 4 In order to improve the vibration reduction effect of the fan assembly 10, in the present embodiment, a plurality of first vibration reduction connection structures 300 are provided only between the air guide cover 120 and the fan casing 200, and the air guide cover 120 is connected to the fan casing 200 through the plurality of first vibration reduction connection structures 300. For example, the plurality of first vibration reduction connection structures 300 can be connected between the air guide cover 120 and the lower casing 202.

[0120] The control end of the fan 100 (the end where the control part and the motor are located) does not contact the fan housing 200, or in other words, the fan 100 does not contact the upper housing 201, and there is a gap between the fan 100 and the upper housing 201. In addition, the air guide cover 120 does not directly contact the lower housing 202, but indirectly contacts the lower housing 202 through the multiple first vibration reduction connection structures 300.

[0121] The plurality of first vibration-damping connection structures 300 may be arranged at intervals, and different first vibration-damping connection structures 300 may be located at different positions of the wind guide cover 120 (or the lower shell 202), so that there may be a plurality of connection positions between the wind guide cover 120 and the lower shell 202, ensuring a stable and reliable connection between the wind guide cover 120 and the lower shell 202. Further, the fan 100 is ensured to be securely installed in the fan shell 200, and the fan assembly 10 is guaranteed to operate stably.

[0122] On the one hand, the fan 100 and the fan housing 200 are not in direct contact as a whole, and the two are only in indirect contact through a plurality of first vibration-damping connection structures 300. Under the buffering effect of each first vibration-damping connection structure 300, a part of the vibration amount can be absorbed, the vibration amount transmitted from the fan 100 to the fan housing 200 can be reduced, and the vibration intensity of the fan housing 200 can be weakened.

[0123] On the other hand, the multiple first vibration damping connection structures 300 are only arranged between the air guide cover 120 and the lower shell 202, and the volume of a single first vibration damping connection structure 300 is relatively small. The contact areas between the first vibration damping connection structure 300 and the air guide cover 120 and between the first vibration damping connection structure 300 and the lower shell 202 are both relatively small, which is equivalent to a point contact method.

[0124] In this configuration, on the basis that the fan 100 and the fan housing 200 are not in direct contact, a plurality of first vibration-damping connection structures 300 are only provided between the wind shroud 120 and the lower housing 202, and the contact area of ​​a single first vibration-damping connection structure 300 between the wind shroud 120 and the lower housing 202 is small. In this way, the contact area of ​​the wind shroud 120 and the lower housing 202 in indirect contact is small, and the force bearing area of ​​the wind shroud 120 transmitting vibration to the lower housing 202 is small. The fan assembly 10 has a high installation vibration isolation rate, which can enhance the vibration reduction effect of the fan assembly 10 and reduce the vibration noise of the cleaning equipment.

[0125] Figure 5 This is an assembly structure diagram of the air guide cover and the lower shell provided in Example 1 of the present application. Figure 6 for Figure 5 Exploded structure diagram of the air guide cover and lower shell. Figure 7 for Figure 5 Sectional view along line BB.

[0126] Combination Figure 4 and Figure 5 As shown, when the air inlet 101 of the fan 100 faces downward and is supported on the lower shell 202 along the gravity direction, each first vibration-damping connection structure 300 can be arranged at the periphery of the air inlet 101 of the fan 100, and the first vibration-damping connection structure 300 is supported between the wind guide cover 120 and the fan housing 200. The first vibration-damping connection structure 300 plays a supporting role. For example, the fan 100 is supported on the periphery of the air inlet portion 203 of the fan housing 200 by the first vibration-damping connection structure 300. The first vibration-damping connection structure 300 also plays a connecting role. The fan 100 is fixedly connected to the fan housing 200 by the first vibration-damping connection structure 300 to prevent the fan 100 from shaking or deflecting during operation, and to ensure that the fan 100 is stably and reliably installed in the fan housing 200.

[0127] When the size of the air inlet 101 of the fan 100 is smaller than the size of the main body of the fan 100, by arranging the first vibration reduction connection structure 300 at the periphery of the air inlet 101 of the fan 100, the first vibration reduction connection structure 300 occupies very little space at the periphery of the fan 100, or even does not occupy any additional space at the periphery of the fan 100. In this way, the space between the outer side wall of the fan 100 and the outer side wall of the fan housing 200 can be reduced, which is conducive to the miniaturization of the fan assembly 10.

[0128] For each first vibration-damping connection structure 300 disposed on the periphery of the air inlet 101 of the fan 100, each first vibration-damping connection structure 300 can be disposed at intervals along the circumference of the fan 100, or in other words, each first vibration-damping connection structure 300 can be disposed at intervals along the circumference of the wind guide cover 120. Different first vibration-damping connection structures 300 can be located at different positions on the periphery of the air inlet 101 of the fan 100 to ensure that the fan 100 is stably supported in the fan casing 200 and that the fan 100 is securely connected to the fan casing 200. Moreover, in the gravity direction of the fan assembly 10, each first vibration-damping connection structure 300 can be located in the same plane, so that the force balance between the fan 100 and the fan casing 200 is better, and the reliability of the fan assembly 10 is higher.

[0129] It should be noted that at least three first vibration reduction connection structures 300 can be arranged between the air duct 120 and the fan housing 200, that is, the number of the first vibration reduction connection structures 300 is at least three. In this way, there are more than three connection parts between the air duct 120 and the fan housing 200, and the fan 100 and the fan housing 200 can be connected firmly. In particular, for the way in which the fan 100 is supported in the fan housing 200 in the direction of gravity, the fan 100 can be supported at multiple points by more than three first vibration reduction connection structures 300, so that the fan 100 can be supported stably and reliably.

[0130] Furthermore, each first vibration reduction connection structure 300 between the air guide cover 120 and the fan housing 200 can be evenly spaced along the circumference of the fan 100 (or the fan housing 200). In this way, the force balance between the fan 100 and the fan housing 200 can be ensured, the stability and reliability of the installation of the fan 100 can be improved, and the stability of the operation of the fan assembly 10 can be improved.

[0131] Figure 5 2 illustrates that the number of first vibration-damping connection structures 300 provided in the fan assembly 10 is three, and the three first vibration-damping connection structures 300 are evenly spaced along the circumference of the fan housing 200. In other examples, the number of first vibration-damping connection structures 300 provided in the fan assembly 10 may be four, five, or even more, and each first vibration-damping connection structure 300 may be evenly spaced along the circumference of the fan housing 200, which is not limited in the embodiment of the present application.

[0132] Reference Figure 6 As shown, a plurality of first connection parts 121 are arranged at intervals on the wind guide cover 120 of the fan 100, and each first connection part 121 can be evenly spaced along the circumference of the wind guide cover 120. For example, three first connection parts 121 are evenly spaced along the circumference of the wind guide cover 120. A plurality of second connection parts 210 are arranged at intervals on the fan housing 200, and each second connection part 210 corresponds to each first connection part 121 one by one. For example, three second connection parts 210 are evenly spaced along the circumference of the fan housing 200.

[0133] Combination Figure 6 and Figure 7 As shown, the first vibration damping connection structure 300 may include a first connection member 310, a first vibration damping member 320 and a second vibration damping member 330. The first connection member 310 is arranged on the outside of the fan housing 200 (the side of the fan housing 200 facing away from the fan 100), and the first connection member 310 is connected to the wind scoop 120. The first vibration damping member 320 is arranged between the wind scoop 120 and the fan housing 200, and abuts between the first connection portion 121 of the wind scoop 120 and the second connection portion 210 of the fan housing 200. The second vibration damping member 330 is arranged on the outside of the fan housing 200, and abuts between the second connection portion 210 and the first connection member 310.

[0134] By arranging the first vibration damper 320 between the first connection portion 121 of the air scoop 120 and the second connection portion 210 of the fan housing 200, the first vibration damper 320 can separate the first connection portion 121 from the second connection portion 210, thereby preventing the air scoop 120 from directly contacting the fan housing 200. Furthermore, when the fan 100 is supported in the fan housing 200 along the gravity direction, the air scoop 120 is indirectly in contact with the fan housing 200 through the first vibration damper 320, and the first vibration damper 320 plays a supporting role. The first vibration damper 320 bears the gravity of the fan 100, so as to stably support the fan 100 in the fan housing 200.

[0135] By disposing the second vibration damper 330 between the second connection portion 210 of the fan housing 200 and the first connection member 310, the second vibration damper 330 can separate the second connection portion 210 from the first connection member 310. In this way, although the first connection member 310 is disposed on the outside of the fan housing 200, the first connection member 310 is only connected to the first connection portion 121 of the wind guide cover 120, and does not contact the fan housing 200. The fan 100 is prevented from contacting the fan housing 200 through the first connection member 310, and hard contact between the fan 100 and the fan housing 200 is avoided.

[0136] For example, if the fan 100 is supported in the fan casing 200 along the direction of gravity, when the fan assembly 10 is in a vertical state, the first connection portion 121 on the wind guide cover 120 and the second connection portion 210 on the fan casing 200 can be arranged up and down in the vertical direction, and the first vibration damper 320 and the second vibration damper 330 can also be arranged up and down in the vertical direction at intervals, and the second connection portion 210 is spaced between the first vibration damper 320 and the second vibration damper 330.

[0137] The first vibration damper 320 and the second vibration damper 330 can both be made of flexible materials, for example, the first vibration damper 320 and the second vibration damper 330 can both be silicone parts or rubber parts. The first vibration damper 320 and the second vibration damper 330 are both elastic, and the first vibration damper 320 and the second vibration damper 330 have a buffering and absorption effect on the external force received. In this way, the vibration generated by the fan 100 during operation is transmitted to the fan housing 200 through the first vibration damper 320 and the second vibration damper 330 in sequence, and the first vibration damper 320 and the second vibration damper 330 can buffer and absorb the vibration of the fan 100.

[0138] With such a configuration, on the one hand, the air scoop 120 is isolated from the fan housing 200 by the first vibration damper 320, and the fan housing 200 is isolated from the first connecting member 310 by the second vibration damper 330, and the first connecting member 310 is only connected to the air scoop 120. The air scoop 120 is not in direct contact with the fan housing 200, and the possibility of hard contact when the air scoop 120 and the fan housing 200 are in indirect contact is avoided, thereby realizing a vibration-damping connection between the fan 100 and the fan housing 200. The vibration intensity of the fan assembly 10 is reduced by the buffering and absorption effects of the first vibration damper 320 and the second vibration damper 330 on vibration.

[0139] On the other hand, in the circumferential direction of the air scoop 120 (or the fan housing 200), the first vibration-damping connection structure 300 only occupies a small space, and the contact area between the first vibration-damping connection structure 300 and the air scoop 120 and between the first vibration-damping connection structure 300 and the fan housing 200 is small, and the first vibration-damping connection structure 300 and the air scoop 120 and the fan housing 200 are equivalent to point contact. In this way, the force bearing area of ​​the first vibration-damping connection structure 300 for transmitting vibration is small, and the installation vibration isolation rate of the fan assembly 10 is high, which can reduce the vibration noise of the cleaning equipment.

[0140] In practical applications, the area, shape, thickness and other parameters of the first vibration damper 320 and the second vibration damper 330 can be designed according to the stability and reliability requirements of the fan 100 installation and the vibration reduction requirements of the fan assembly 10, and the embodiments of the present application do not impose specific restrictions on this.

[0141] Among them, the first vibration damper 320 can be an integral part. In this case, the thickness of the first vibration damper 320 can be relatively large, and the thickness of the first vibration damper 320 meets the reliability requirements of the installation of the fan 100 and the vibration reduction requirements of the fan assembly 10. Alternatively, the first vibration damper 320 can also include more than two first vibration damping sheets, and each first vibration damping sheet is stacked in sequence. In this case, the thickness of a single first vibration damping sheet can be relatively small, and the total thickness of each first vibration damping sheet after stacking is relatively large, so as to meet the reliability requirements of the installation of the fan 100 and the vibration reduction requirements of the fan assembly 10.

[0142] Similar to the first vibration damper 320, the second vibration damper 330 may be an integral piece, in which case the thickness of the second vibration damper 330 is relatively large. Alternatively, the second vibration damper 330 may also include more than two second vibration damping sheets, each of which is stacked in sequence. In this case, the thickness of a single second vibration damping sheet may be relatively small, and the total thickness of each second vibration damping sheet after being stacked is relatively large. This will not be described in detail here.

[0143] It can be understood that when the fan 100 is supported in the fan housing 200 along the gravity direction, the first vibration damper 320 disposed between the first connection portion 121 of the wind guide 120 and the second connection portion 210 of the fan housing 200 is mainly used to support the fan 100 and bear the gravity of the fan 100. Therefore, the first vibration damper 320 should have a high structural strength to ensure that the fan 100 is supported stably and securely.

[0144] In this regard, the thickness of the first vibration damper 320 can be relatively large, for example, the thickness of the first vibration damper 320 can be greater than the thickness of the second vibration damper 330, so that the first vibration damper 320 has sufficient thickness. By increasing the thickness of the first vibration damper 320, the structural strength of the first vibration damper 320 is enhanced, and the reliability requirement of the first vibration damper 320 supporting the wind turbine 100 is met.

[0145] When the first vibration damper 320 is an integral part, the thickness of the first vibration damper 320 can be increased so that the thickness of the first vibration damper 320 is greater than the thickness of the second vibration damper 330. When the first vibration damper 320 includes more than two stacked first vibration damper sheets, if the second vibration damper 330 is an integral part, the total thickness of the first vibration damper sheets is greater than the thickness of the second vibration damper 330; if the second vibration damper 330 also includes more than two stacked second vibration damper sheets, taking the example that the thickness of the first vibration damper sheet is the same as the thickness of the second vibration damper sheet, the number of the first vibration damper sheets can be greater than the number of the second vibration damper sheets.

[0146] In addition, combined Figure 6 and Figure 7As shown, a sealing ring 400 may be further provided between the air inlet 101 of the fan 100 and the fan housing 200. The sealing ring 400 is, for example, a rubber ring or a silicone ring, and the sealing ring 400 may be tightly fitted between the outer wall of the air guide cover 120 and the inner wall of the fan housing 200. The sealing ring 400 is used to seal the gap between the air guide cover 120 and the fan housing 200, so that all the gas entering from the air inlet portion 203 of the fan housing 200 flows into the fan 100, thereby ensuring the sealing performance of the fan assembly 10.

[0147] Figure 8 This is a schematic structural diagram of the lower shell of the fan casing provided in Example 1 of the present application. Fig. 9 This is a schematic diagram of the structure of the air guide hood provided in Example 1 of the present application.

[0148] Combination Figure 7 and Figure 8 As shown, the second connection portion 210 on the fan housing 200 may include a partition portion 211, and the partition portion 211 is, for example, a part of the main structure of the lower housing 202. The partition portion 211 may be arranged opposite to the first connection portion 121 on the wind guide cover 120, and the first vibration damper 320 and the second vibration damper 330 may be respectively located on both sides of the partition portion 211, the first vibration damper 320 abuts between the first connection portion 121 and the partition portion 211, and the second vibration damper 330 abuts between the first connection portion 310 and the partition portion 211.

[0149] On this basis, the second connection portion 210 on the fan housing 200 may further include a panel portion 212, which is connected to the outer wall surface of the fan housing 200 and extends in a direction away from the fan 100. Exemplarily, the panel portion 212 may be integrally formed on the fan housing 200. The panel portion 212 is arranged around the circumference of the partition portion 211, or in other words, the partition portion 211 is defined on the fan housing 200 by the area surrounded by the panel portion 212.

[0150] The enclosing plate portion 212 and the partition plate portion 211 together form an installation groove, and the second vibration damper 330 can be located in the installation groove. In this way, the installation groove can define the installation position of the second vibration damper 330, and the obstruction of the enclosing plate portion 212 can prevent the second vibration damper 330 from deflecting, so as to restrict the second vibration damper 330 in the installation groove. It is ensured that the second vibration damper 330 can abut between the partition plate portion 211 and the first connecting member 310, and ensure that the second vibration damper 330 plays a role in isolating the first connecting member 310 and the fan housing 200.

[0151] For example, the depth of the mounting groove may be less than the thickness of the second vibration damper 330, or in other words, the protruding height of the apron portion 212 may be less than the thickness of the second vibration damper 330, and the second vibration damper 330 protrudes out of the mounting groove. For the first connecting member 310 disposed on the surface of the second vibration damper 330, there may be a gap between the first connecting member 310 and the end surface of the apron portion 212, which can ensure that the first connecting member 310 does not contact the apron portion 212, and ensure that the second vibration damper 330 isolates the first connecting member 310 from the fan housing 200.

[0152] Reference Figure 8 As shown, as an embodiment, along the circumference of the enclosure portion 212, the enclosure portion 212 may include a first wall 2121 and a second wall 2122 connected to each other. The inner side wall of the first wall 2121 may be a smooth surface, or in other words, the inner side wall of the first wall 2121 extends along a smooth curve. The inner side wall of the second wall 2122 may also be a smooth surface, or in other words, the inner side wall of the second wall 2122 extends along a smooth curve. The contour shape of the second vibration damper 330 may match the contour shape of the enclosure portion 212.

[0153] As an embodiment, the connection between the first wall 2121 and the second wall 2122 may be a turning angle, or in other words, the enclosure portion 212 turns at the connection between the second wall 2122 and the first wall 2122. Matching this, the second vibration damper 330 may also have a turning angle. In this way, when the second vibration damper 330 is installed in the installation groove, the turning angle of the second vibration damper 330 corresponds to the turning angle of the enclosure portion 212, and the second vibration damper 330 can be positioned. Moreover, under the limiting effect of the turning angle, the second vibration damper 330 can be prevented from deflecting or rotating, so as to ensure the stability and reliability of the second vibration damper 330.

[0154] As another embodiment, the first wall 2121 and the second wall 2122 may also have a smooth transition. For example, the installation groove formed by the first wall 2121 and the second wall 2122 may be circular, and the outer periphery of the second vibration damper 330 may be approximately circular to match it. In this way, the second vibration damper 330 may rotate in the installation groove, and the orientation of the second vibration damper 330 does not need to be adjusted during installation, which facilitates the installation of the second vibration damper 330.

[0155] Combination Figure 7 and Figure 8As shown, since the first connecting member 310 is located outside the fan housing 200, in order to realize the connection between the first connecting member 310 and the air scoop 120, a first assembly hole 2111 may be opened on the second connecting portion 210 of the fan housing 200, and the first assembly hole 2111 may be opened on the partition portion 211 of the second connecting portion 210. The first assembly hole 2111 exposes the first connecting portion 121 of the air scoop 120, and at least one of the first connecting portion 121 and the first connecting member 310 passes through the first assembly hole 2111 to realize the connection between the first connecting member 310 and the first connecting portion 121.

[0156] Combination Figure 7 and Fig. 9 As shown, in some embodiments, the first connection portion 121 on the air scoop 120 may include a first connection column 1212, the first connection column 1212 protrudes on the outer wall surface of the air scoop 120, and the first connection column 1212 extends toward the second connection portion 210 of the fan housing 200. The first connection column 1212 may correspond to the first assembly hole 2111 on the second connection portion 210, and the first connector 310 is connected to the first connection column 1212.

[0157] Furthermore, the first connection portion 121 may further include a first mounting portion 1211 located on the outer wall surface of the wind guide cover 120, the first connection column 1212 may protrude above the first mounting portion 1211, and the end surface of the first mounting portion 1211 facing the second connection portion 210 of the fan housing 200 may be a plane, and the first vibration damping member 320 may abut against the end surface of the first mounting portion 1211. For example, the first mounting portion 1211 may include a plurality of reinforcing plates a (such as Fig. 9 As shown in ), each reinforcing plate a is arranged at intervals along the circumferential direction and connected to the outer side wall of the first connecting column 1212. Alternatively, the first mounting portion 1211 may also include a mounting platform, which may protrude on the outer wall surface of the air guide cover 120, and the first connecting column 1212 is located on the mounting platform.

[0158] As an example, the extension height of the first connecting column 1212 can be relatively large, and the first connecting column 1212 can pass through the first assembly hole 2111 on the second connecting portion 210 of the fan housing 200 and extend out of the fan housing 200 (see Figure 7As shown). In this way, the connection between the first connecting member 310 and the first connecting column 1212 is facilitated, and the positioning of the fan 100 is facilitated, which helps to increase the connection area between the first connecting column 1212 and the first connecting member 310, enhance the connection strength between the first connecting column 1212 and the first connecting member 310, and make the fan 100 and the fan housing 200 firmly connected. At this time, the first vibration damping member 320 abutting between the first connecting portion 121 of the fan 100 and the second connecting portion 210 of the fan housing 200 can be sleeved outside the first connecting column 1212, and the second vibration damping member 330 abutting between the second connecting portion 210 of the fan housing 200 and the first connecting member 310 can also be sleeved outside the first connecting column 1212.

[0159] As another example, the extension height of the first connecting column 1212 can be smaller, and there can be a gap between the top of the first connecting column 1212 and the second connecting portion 210 (partition portion 211) on the fan housing 200, or the top of the first connecting column 1212 is inserted into the first assembly hole 2111. The first connecting member 310 passes through the first assembly hole 2111 and is connected to the first connecting column 1212, or the first connecting member 310 extends into the first assembly hole 2111 and is connected to the first connecting column 1212. At this time, the first vibration damper 320 can be sleeved outside the first connecting column 1212, and the second vibration damper 330 can be sleeved outside the first connecting member 310.

[0160] When the first connection portion 121 on the air scoop 120 includes a first connection column 1212, a threaded connection may be used between the first connection member 310 and the first connection column 1212. For example, the first connection column 1212 may be a hollow column, the inner side wall of the first connection column 1212 may be provided with an internal thread, the outer side wall of the first connection member 310 may be provided with an external thread (the first connection member 310 is, for example, a screw or a bolt), and the first connection member 310 is screwed into the first connection column 1212 to achieve a threaded connection between the first connection member 310 and the first connection column 1212. Alternatively, the first connection member 310 is a hollow column, the inner side wall of the first connection member 310 may be provided with an internal thread, the outer side wall of the first connection column 1212 may be provided with an external thread, and the first connection member 310 is rotatably sleeved outside the first connection column 1212 to achieve the connection between the first connection member 310 and the first connection column 1212.

[0161] Alternatively, the first connector 310 and the first connector column 1212 may be connected in other ways, for example, the first connector 310 and the first connector column 1212 are fixedly connected together by bonding, welding, etc. When the connection reliability can be guaranteed, one of the first connector 310 and the first connector column 1212 may be provided with a buckle, and the other may be provided with a clamping hole or a clamping groove, and the first connector 310 and the first connector column 1212 may be connected in a clamping manner.

[0162] In other embodiments, the first connection portion 121 on the air scoop 120 may not include the first connection column 1212. For example, the first connection portion 121 may only include the aforementioned first mounting portion 1211. In this case, the first connection member 310 may pass through the first assembly hole 2111 on the second connection portion 210 of the fan housing 200, extend into the fan housing 200, and be connected to the first mounting portion 1211 on the air scoop 120.

[0163] At this time, the first mounting portion 1211 on the air scoop 120 can be designed in the form of a mounting platform, and the first connecting member 310 extends into the fan housing 200 and is connected to the first mounting portion 1211. In some examples, a first connecting hole (not shown in the figure) is provided on the first mounting portion 1211, and the first connecting member 310 extends into the first connecting hole to achieve the connection between the first connecting member 310 and the air scoop 120. For example, the hole wall of the first connecting hole can be provided with an internal thread, and the outer side wall of the first connecting member 310 can be provided with an external thread (the first connecting member 310 is, for example, a screw or a bolt), and the first connecting member 310 is screwed into the first connecting hole so that the first connecting member 310 is threadedly connected in the first connecting hole.

[0164] In other examples, the first connection hole may not be provided on the first mounting portion 1211, and the first connector 310 and the first mounting portion 1211 may be connected in other ways. For example, the first connector 310 and the first mounting portion 1211 are fixedly connected together by bonding, welding, etc. When the connection reliability can be guaranteed, one of the first connector 310 and the first mounting portion 1211 may be provided with a buckle, and the other may be provided with a clamping hole or a clamping slot, and the first connector 310 and the first mounting portion 1211 may be connected in a clamping manner.

[0165] When the first connection part 121 on the air guide cover 120 does not include the first connection column 1212, and the first connection member 310 passes through the first assembly hole 2111 on the second connection part 210 of the fan housing 200 and extends into the fan housing 200, the first connection member 310 can pass through the second vibration damper 330 and the first vibration damper 320 in sequence to be connected to the first connection part 121. Wherein, when the cross-sectional area (outer diameter) of the first connection member 310 is large, the first vibration damper 320 and the second vibration damper 330 can have a central hole, the first vibration damper 320 and the second vibration damper 330 are annular members, and the first vibration damper 320 and the second vibration damper 330 are sleeved outside the first connection member 310. When the cross-sectional area (outer diameter) of the first connection member 310 is small, only the first vibration damper 320 and the second vibration damper 330 can be slit, and the first connection member 310 can pass through the gaps on the second vibration damper 330 and the first vibration damper 320.

[0166] In addition, when the first connecting member 310 is a small-sized structural member such as a screw or a bolt, in order to ensure that the first connecting member 310 and the second vibration damping member 330 are in stable contact, in some embodiments, a gasket b (such as Figure 6 As shown). The gasket b can be sleeved on the first connecting member 310, and the gasket b contacts the surface of the second vibration damper 330, and the second vibration damper 330 abuts between the partition part 211 of the second connecting part 210 of the fan housing 200 and the gasket b to ensure the stability and reliability of the second vibration damper 330.

[0167] Fig.10 This is a schematic diagram of the structure of the first vibration damping member (or the second vibration damping member) provided in the first embodiment of the present application. Fig.10 As shown, in order to improve the vibration damping performance of the first vibration damping connection structure 300, in some embodiments, the outer wall surface of the first vibration damper 320 can be provided with a vibration damping groove 301, or the outer wall surface of the second vibration damper 330 can be provided with a vibration damping groove 301, or the outer wall surface of the first vibration damper 320 and the outer wall surface of the second vibration damper 330 can both be provided with a vibration damping groove 301.

[0168] The vibration damping groove 301 is recessed inward from the outer wall surface of the first vibration damping member 320 (and / or the second vibration damping member 330), which can enhance the deformation capacity of the first vibration damping member 320 (and / or the second vibration damping member 330). In addition, the ability of the first vibration damping member 320 (and / or the second vibration damping member 330) to buffer and absorb vibration is enhanced, the vibration damping performance of the first vibration damping connection structure 300 is improved, the installation vibration isolation rate of the fan assembly 10 is improved, and the vibration noise of the cleaning equipment is reduced.

[0169] Continue to refer to Fig.10 The vibration damping groove 301 may include an end surface vibration damping groove 3011, which is arranged on at least one of the end surfaces of both sides of the first vibration damper 320 (and / or the second vibration damper 330). The end surface vibration damping groove 3011 is, for example, an annular groove that surrounds the entire circle and is connected end to end. The end surface vibration damping groove 3011 extends from the end surface of the first vibration damper 320 (and / or the second vibration damper 330) to the center surface, and may occupy various circumferential positions of the end surface of the first vibration damper 320 (and / or the second vibration damper 330), and has a relatively uniform vibration reduction and noise reduction effect.

[0170] The vibration damping groove 301 may further include a side vibration damping groove 3012, which is disposed on the side wall of the first vibration damper 320 (and / or the second vibration damper 330). The side vibration damping groove 3012 may extend along the circumference of the first vibration damper 320 (and / or the second vibration damper 330), for example, the side vibration damping groove 3012 is an annular groove that surrounds the side wall of the first vibration damper 320 (and / or the second vibration damper 330) and is connected end to end. The side vibration damping groove 3012 extends from the side wall of the first vibration damper 320 (and / or the second vibration damper 330) to the central axis, and can occupy various peripheral parts of the first vibration damper 320 (and / or the second vibration damper 330), which is beneficial to the deformation of the edge of the first vibration damper 320 (and / or the second vibration damper 330), enhances the deformation capacity of the first vibration damper 320 (and / or the second vibration damper 330), and strengthens the vibration reduction and noise reduction effects of the first vibration damper 320 (and / or the second vibration damper 330).

[0171] In other embodiments, the first vibration damper 320 may be provided with vibration damping holes, or the second vibration damper 330 may be provided with vibration damping holes, or both the first vibration damper 320 and the second vibration damper 330 may be provided with vibration damping holes. The vibration damping holes may extend along the thickness direction (axial direction) of the first vibration damper 320 (and / or the second vibration damper 330).

[0172] By distributing vibration-absorbing holes on the first vibration damper 320 (and / or the second vibration damper 330), the deformation capacity of the first vibration damper 320 (and / or the second vibration damper 330) is enhanced, the ability of the first vibration damper 320 (and / or the second vibration damper 330) to buffer and absorb vibration is enhanced, the vibration damping performance of the first vibration damping connection structure 300 is improved, the installation vibration isolation rate of the fan assembly 10 is improved, and the vibration noise of the cleaning equipment is reduced.

[0173] Furthermore, multiple circles of vibration damping holes may be arranged at intervals from the center of the first vibration damper 320 (and / or the second vibration damper 330) to the edge of the first vibration damper 320 (and / or the second vibration damper 330), and the vibration damping holes may be arranged evenly at intervals along the circumferential direction. In this way, the number of vibration damping holes arranged in the first vibration damper 320 (and / or the second vibration damper 330) is large and evenly distributed, which can effectively improve the deformation capacity of the first vibration damper 320 (and / or the second vibration damper 330), enhance the vibration damping performance of the first vibration damper 320 (and / or the second vibration damper 330), and ensure the force balance of the first vibration damper 320 (and / or the second vibration damper 330).

[0174] Exemplarily, among the vibration damping holes provided on the first vibration damper 320 (and / or the second vibration damper 330), all the vibration damping holes may be through holes, and all the vibration damping holes penetrate both ends of the first vibration damper 320 (and / or the second vibration damper 330) in the thickness direction. Alternatively, all the vibration damping holes may be blind holes, and all the vibration damping holes extend from the end surface of the first vibration damper 320 (and / or the second vibration damper 330) to the inside of the first vibration damper 320 (and / or the second vibration damper 330). Alternatively, among all the vibration damping holes, some of the vibration damping holes are through holes, and some of the vibration damping holes are blind holes.

[0175] Of course, on the basis of the vibration damping groove 301 being provided on the outer wall surface of the first vibration damper 320 (and / or the second vibration damper 330), vibration damping holes can also be provided inside the first vibration damper 320 (and / or the second vibration damper 330). The vibration damping holes inside the first vibration damper 320 (and / or the second vibration damper 330) are closed holes. For example, the vibration damping holes can be evenly distributed inside the first vibration damper 320 (and / or the second vibration damper 330). In this way, the deformation capacity of the first vibration damper 320 (and / or the second vibration damper 330) can be further enhanced, the ability of the first vibration damper 320 (and / or the second vibration damper 330) to buffer and absorb vibration can be enhanced, and the vibration damping performance of the first vibration damping connection structure 300 can be improved. No further details will be given here.

[0176] Embodiment 2

[0177] Fig.11 This is a partial structural diagram of the cleaning equipment provided in Example 2 of the present application. Fig.12 for Fig.11 Exploded structure diagram of the cleaning equipment in . Fig.13 for Fig.12 Cross-sectional view of the cleaning equipment along line CC.

[0178] Reference Fig.11 As shown, different from the first embodiment, this embodiment takes the fan assembly 10 applied to a floor scrubber as an example, or in other words, the cleaning device equipped with the fan assembly 10 can be a floor scrubber. Exemplarily, the fan assembly 10 can be an axial flow fan or a diagonal flow fan.

[0179] Combination Fig.11 and Fig.12 As shown, the fan assembly 10 is arranged on the body of the cleaning device, and the fan assembly 10 can be installed on the main housing 20 of the body. It should be noted that only a partial structure of the main housing 20 is shown in the figure, and in practice, the fan assembly 10 can be completely enclosed in the main housing 20.

[0180] Moreover, the figure only shows the fan 100 in the fan assembly 10 , but does not show the fan housing. It should be understood that, similar to the first embodiment, the fan housing can be arranged outside the fan 100 , for example, the fan housing can form a fully surrounding structure for the fan 100 .

[0181] Reference Fig.13 As shown, the fan 100 has an air inlet 101 and an air outlet 102, and the fan housing (not shown in the figure) can be provided with an air inlet portion and an air outlet portion, the air inlet 101 of the fan 100 corresponds to and is connected with the air inlet portion on the fan housing, and the air outlet 102 of the fan 100 corresponds to and is connected with the air outlet portion on the fan housing. In addition, the air guide cover 120 is semi-enclosed outside the fan body 110, and the air guide cover 120 is specifically arranged around the air inlet end of the fan body 110, which is equivalent to the air guide cover 120 surrounding the air inlet 101 of the fan 100. A sealing ring 400 can be provided between the air guide cover 120 (the air inlet 101) and the fan housing.

[0182] Similar to the first embodiment, in this embodiment, when the fan assembly 10 is installed on the cleaning device, the air inlet of the fan assembly 10 can also be downwardly directed toward the bottom of the cleaning device. At this time, the air inlet 101 of the fan 100 is downwardly directed and connected to the air inlet on the fan housing, and the fan 100 is supported in the fan housing along the direction of gravity.

[0183] Continue to refer to Fig.13 As shown, in this embodiment, a plurality of first vibration damping connection structures 300 may also be provided between the air guide cover 120 of the fan 100 and the fan casing, and the air guide cover 120 and the fan casing are indirectly in contact through the plurality of first vibration damping connection structures 300, and there is a gap between other parts of the fan 100 and the fan casing, and the other parts of the fan 100 do not contact the fan casing.

[0184] With such an arrangement, the fan 100 is not in direct contact with the entire fan casing, and the two are only in indirect contact through a plurality of first vibration-damping connection structures 300. Through the buffering effect of the first vibration-damping connection structure 300, the amount of vibration transmitted from the fan 100 to the fan casing can be reduced, and the vibration intensity of the fan casing can be weakened. In addition, the contact areas between the first vibration-damping connection structure 300 and the wind guide cover 120, and between the first vibration-damping connection structure 300 and the fan casing are relatively small, the indirect contact area between the wind guide cover 120 and the fan casing is small, and the force area of ​​the wind guide cover 120 transmitting vibration to the fan casing is small. The fan assembly 10 has a high installation vibration isolation rate, which can enhance the vibration reduction effect of the fan assembly 10 and reduce the vibration noise of the cleaning equipment.

[0185] When the air inlet 101 of the fan 100 faces downward and is supported on the fan housing along the direction of gravity, each first vibration damping connection structure 300 can be arranged on the periphery of the air inlet 101 of the fan 100. For example, each first vibration damping connection structure 300 can be evenly spaced along the circumference of the air guide cover 120.

[0186] Among them, refer to Fig.13 As shown, similar to the first embodiment, in this embodiment, the first vibration damping connection structure 300 may include a first connecting member 310, a first vibration damping member 320 and a second vibration damping member 330. The first connecting member 310 is arranged on the outside of the fan casing (the side of the fan casing away from the fan 100), and the first connecting member 310 is connected to the wind guide cover 120. The first vibration damping member 320 is arranged between the wind guide cover 120 and the fan casing, and abuts between the first connection portion 121 of the wind guide cover 120 and the second connection portion of the fan casing. The second vibration damping member 330 is arranged on the outside of the fan casing, and abuts between the second connection portion and the first connecting member 310. No further details are given here.

[0187] Embodiment 3

[0188] Fig.14 A structural diagram of the fan assembly from one perspective provided in Example 3 of the present application. Fig.15 This is a structural diagram of the fan assembly from another perspective provided in Example 3 of the present application. Fig.16 for Fig.14 Cross-sectional view of the fan assembly along line DD.

[0189] Reference Fig.14 or Fig.15 As shown, different from the first and second embodiments, this embodiment takes the application of the fan assembly 10 on a sweeper as an example, or in other words, the cleaning device equipped with the fan assembly 10 can be a sweeper. Exemplarily, the fan assembly 10 can be a centrifugal fan.

[0190] Combination Fig.14 and Fig.15 As shown, the fan housing 200 of the fan assembly 10 can be semi-enclosed outside the fan 100, and the fan housing 200 mainly plays a supporting role to fix the fan 100 in the main housing (not shown in the figure) of the cleaning device. For example, the fan housing 200 can be located below the fan 100, and the fan 100 is supported on the fan housing 200.

[0191] The air inlet 101 on the fan 100 is opened along the axial direction of the fan 100, and the air outlet 102 on the fan 100 is opened along the circumferential direction of the fan 100. Fig.16 As shown, the gas enters the fan 100 from the air inlet 101 along the axial direction of the fan 100 , changes to a radial direction when passing through the impeller 111 of the fan body 110 , and flows out from the air outlet 102 of the fan 100 .

[0192] At this time, if Fig.15As shown, the fan casing 200 may be provided with an air inlet 203, and the air inlet 101 of the fan 100 may be connected to the air inlet 203 on the fan casing 200. The air inlet 203 of the fan casing 200 may be exposed outside the main casing, or the air inlet 203 of the fan casing 200 may be located inside the main casing and connected to the outside, so that the outside gas may enter the fan 100 through the air inlet 203 of the fan casing 200 and the air inlet 101 of the fan 100. Of course, the fan casing 200 may not be provided with the air inlet 203, and the air inlet 101 of the fan 100 may serve as the air inlet 203 of the fan assembly 10. For example, the air inlet 101 on the fan 100 corresponds to and is connected to the air inlet grille on the main casing. Refer to Fig.14 or Fig.15 The air outlet 102 of the fan 100 can serve as an air outlet portion of the fan assembly 10. For example, the air outlet 102 on the fan 100 corresponds to and is connected to an air outlet grille on the main housing.

[0193] Reference Fig.16 As shown, when the fan assembly 10 is a centrifugal fan 100, the air guide cover 120 can be completely surrounded by the outer periphery of the fan body 110, and the air guide cover 120 and the fan body 110 together form an entire air duct. The air guide cover 120 surrounds the air inlet 101 of the fan 100, and a sealing ring 400 can be provided between the air guide cover 120 (the air inlet 101) and the fan housing 200.

[0194] Illustratively, in this embodiment, when the fan assembly 10 is installed on a cleaning device, the air inlet 203 of the fan assembly 10 can be facing the side of the cleaning device, the air inlet 101 of the fan 100 can be downward toward the bottom of the cleaning device, and the air inlet 101 of the fan 100 can be inclined toward the side where the air inlet 203 is located.

[0195] Combination Fig.14 and Fig.16 As shown, in the present embodiment, a plurality of first vibration damping connection structures 300 may also be provided between the air guide cover 120 of the fan 100 and the fan casing 200, the air guide cover 120 and the fan casing 200 are indirectly in contact with each other through the plurality of first vibration damping connection structures 300, and there is a gap between other parts of the fan 100 and the fan casing 200, and other parts of the fan 100 are not in contact with the fan casing 200.

[0196] With such an arrangement, the fan 100 and the fan casing 200 are not in direct contact as a whole, and the two are only in indirect contact through a plurality of first vibration-damping connection structures 300. Through the buffering effect of the first vibration-damping connection structure 300, the vibration beam transmitted from the fan 100 to the fan casing 200 can be reduced, and the vibration intensity of the fan casing 200 can be weakened. In addition, the contact areas between the first vibration-damping connection structure 300 and the wind guide cover 120, and between the first vibration-damping connection structure 300 and the fan casing 200 are both small, the contact area of ​​the indirect contact between the wind guide cover 120 and the fan casing 200 is small, and the force area of ​​the wind guide cover 120 transmitting vibration to the fan casing 200 is small. The fan assembly 10 has a high installation vibration isolation rate, which can enhance the vibration reduction effect of the fan assembly 10 and reduce the vibration noise of the cleaning equipment.

[0197] Each of the first vibration-damping connection structures 300 may be disposed on an outer side wall of the wind guide cover 120 . For example, each of the first vibration-damping connection structures 300 may be disposed at (evenly) intervals along the circumference of the wind guide cover 120 .

[0198] Among them, refer to Fig.16 As shown, similar to the first embodiment, in this embodiment, the first vibration damping connection structure 300 may include a first vibration damping member 320, a second vibration damping member 330 and a first connecting member 310. Different from the first embodiment, the first connecting portion 121 of the air guide cover 120 may include a connecting sleeve 1213, and the connecting sleeve 1213 extends out from the outer side wall of the guide cover. The second connecting portion 210 of the fan housing 200 may include a connecting column 213, and the connecting column 213 is inserted into the connecting sleeve 1213. A partition plate 1213a is provided in the connecting sleeve 1213, and the partition plate 1213a is provided with an assembly hole 1213b, and the connecting column 213 passes through the assembly hole 1213b, and there is a gap between the connecting column 213 and the assembly hole 1213b.

[0199] The first vibration damper 320 and the second vibration damper 330 are both sleeved on the connection column 213 of the fan housing 200, and the inner annular surface of the first vibration damper 320 and the inner annular surface of the second vibration damper 330 are both in contact with the outer wall of the connection column 213, and the outer annular surface of the first vibration damper 320 and the outer annular surface of the second vibration damper 330 are both in contact with the inner wall of the connection sleeve 1213 of the wind guide cover 120. The first vibration damper 320 is arranged on the side of the partition plate 1213a facing the fan housing 200, and the second vibration damper 330 is arranged on the side of the partition plate 1213a facing away from the fan housing 200, and the partition plate 1213a separates the first vibration damper 320 and the second vibration damper 330. The first connecting member 310 is located on a side of the connecting sleeve 1213 away from the fan casing 200 . The first connecting member 310 is connected to the connecting column 213 . The second vibration damping member 330 abuts between the connecting sleeve 1213 (the partition plate 1213 a thereof) and the first connecting member 310 .

[0200] Embodiment 4

[0201] Fig.17 This is a partial structural diagram of the cleaning equipment provided in Example 4 of the present application. Fig.18 for Fig.17 Exploded structure diagram of the cleaning equipment in . Fig.19 for Fig.17 Schematic diagram of the structure of the fan assembly in the cleaning equipment.

[0202] Combination Fig.17 and Fig.18 As shown, this embodiment takes the cleaning device as a floor scrubber as an example for explanation. Of course, in other embodiments, the cleaning device can also be a vacuum cleaner, a floor sweeper, etc.

[0203] Taking the cleaning device as a floor scrubber as an example, the fan assembly 10 can be arranged on the body of the cleaning device. The main housing 20 of the body of the cleaning device can include a front housing 21 and a rear housing 22, which together enclose a receiving space, and the fan assembly 10 is arranged in the receiving space.

[0204] Combination Fig.18 and Fig.19 As shown, similar to the above-mentioned embodiment, in the fan assembly 10 of this embodiment, the fan 100 and the fan casing 200 are indirectly in contact with each other via the first vibration-damping connection structure 300, which will not be described in detail here.

[0205] On this basis, in this embodiment, the fan housing 200 is not in direct contact with the main housing 20. A plurality of second vibration-damping connection structures 30 may be provided between the fan housing 200 and the main housing 20, and the fan housing 200 and the main housing 20 (for example, the front housing 21) are in indirect contact through the plurality of second vibration-damping connection structures 30, and a gap is provided between other parts of the fan housing 200 and the main housing 20, and other parts of the fan housing 200 are not in contact with the main housing 20.

[0206] In this configuration, the fan 100 and the fan housing 200 are not in direct contact as a whole, and the two are only in indirect contact through a plurality of first vibration-damping connection structures 300. The fan housing 200 and the main housing 20 are not in direct contact as a whole, and the two are only in indirect contact by providing a plurality of second vibration-damping connection structures 30, thereby realizing secondary vibration reduction of the fan assembly 10. Among them, both the first vibration-damping connection structure 300 and the second vibration-damping connection structure 30 have a buffering effect, which can reduce the amount of vibration transmitted from the fan 100 to the main housing 20 and reduce the vibration intensity of the main housing 20.

[0207] In addition, the contact areas between the second vibration reduction connection structure 30 and the fan housing 200 and between the second vibration reduction connection structure 30 and the main housing 20 are both small, the indirect contact area between the fan housing 200 and the main housing 20 is small, and the force bearing area for the fan housing 200 to transmit vibration to the main housing 20 is small. The installation vibration isolation rate of the fan assembly 10 can be further improved, the shock absorption effect of the fan assembly 10 can be enhanced, and the vibration noise of the cleaning equipment can be reduced.

[0208] In addition, similar to the first vibration-damping connection structure 300, the second vibration-damping connection structure 30 only occupies a local space between the fan housing 200 and the main housing 20, and can be used in scenes with narrow space, which is conducive to the miniaturized design of the cleaning equipment.

[0209] Fig. 20 for Fig.17 Partial structural diagram of the cleaning equipment in. Fig.21 for Fig. 20 The cross-sectional view along line EE in Figure 2. Fig. 20 and Fig.21 As shown, a plurality of third connection parts 220 are provided at intervals on the outer wall of the fan casing 200, and a plurality of fourth connection parts 23 are provided at intervals on the inner wall of the main casing 20, each third connection part 220 corresponds to each fourth connection part 23 one by one, and each second vibration damping connection structure 30 is connected between each third connection part 220 and each fourth connection part 23.

[0210] When the main housing 20 is completely surrounded by the periphery of the fan assembly 10, the third connection portion 220 can be arranged on the outer peripheral wall of the fan housing 200, the fourth connection portion 23 can be arranged on the inner peripheral wall of the main housing 20, and the second vibration-damping connection structure 30 can be connected between the outer peripheral wall of the fan housing 200 and the inner peripheral wall of the main housing 20. Each second vibration-damping connection structure 30 can be arranged at different positions on the outer peripheral wall of the fan housing 200 to ensure that the fan housing 200 is firmly connected to the main housing 20.

[0211] In this embodiment, four second vibration-damping connection structures 30 are provided on the outer peripheral wall of the fan housing 200 as an example (see Fig.19 As shown in the figure, the four second vibration-damping connection structures 30 are symmetrically arranged on both sides of the circumference of the fan housing 200, and two second vibration-damping connection structures 30 are arranged at intervals along the axial direction on each side to securely install the fan assembly 10. Of course, in other examples, five, six or even more second vibration-damping connection structures 30 may also be arranged on the outer peripheral wall of the fan housing 200, and each second vibration-damping connection structure 30 is located at a different position of the outer peripheral wall of the fan housing 200, and this embodiment is not limited to this.

[0212] Reference Fig.21As shown, the second vibration damping connection structure 30 may include a third vibration damping member 32, a fourth vibration damping member 33 and a second connection member 31. The second connection member 31 is arranged on the side of the third connection portion 220 of the fan housing 200 away from the fourth connection portion 23 of the main housing 20. The third vibration damping member 32 is arranged between the fan housing 200 and the main housing 20, and the third vibration damping member 32 is located on the side of the third connection portion 220 of the fan housing 200 facing the fourth connection portion 23 of the main housing 20, and the third vibration damping member 32 abuts between the third connection portion 220 and the fourth connection portion 23. The fourth vibration damping member 33 is arranged on the other side of the third connection portion 220 of the fan housing 200, and the fourth vibration damping member 33 is arranged on the same side as the second connection member 31, and the fourth vibration damping member 33 abuts between the third connection portion 220 and the second connection member 31.

[0213] By disposing the third vibration damper 32 between the third connection portion 220 of the fan housing 200 and the fourth connection portion 23 of the main housing 20 , the third vibration damper 32 can separate the third connection portion 220 from the fourth connection portion 23 to avoid direct contact between the fan housing 200 and the main housing 20 .

[0214] By arranging the fourth vibration damper 33 between the third connection part 220 and the second connection part 31 of the fan housing 200, the fourth vibration damper 33 can separate the third connection part 220 from the second connection part 31. In this way, although the second connection part 31 is arranged on the side of the third connection part 220 of the fan housing 200 away from the fourth connection part 23 of the main housing 20, the second connection part 31 is only connected to the fourth connection part 23 and does not contact the fan housing 200. The fan housing 200 is prevented from contacting the main housing 20 through the second connection part 31, and hard contact between the fan housing 200 and the main housing 20 is avoided.

[0215] Exemplarily, when the second vibration damping connection structure 30 is arranged between the outer peripheral wall of the fan casing 200 and the inner peripheral wall of the main casing 20, the third connection part 220 on the fan casing 200 and the fourth connection part 23 on the main casing 20 can be horizontally connected along the circumference of the fan casing 200, and the third vibration damping member 32 and the fourth vibration damping member 33 can also be horizontally spaced along the circumference of the fan casing 200, and the third connection part 220 is spaced between the third vibration damping member 32 and the fourth vibration damping member 33.

[0216] The third vibration damper 32 and the fourth vibration damper 33 can both be made of flexible materials, for example, the third vibration damper 32 and the fourth vibration damper 33 can both be silicone parts or rubber parts. The third vibration damper 32 and the fourth vibration damper 33 are both elastic, and the third vibration damper 32 and the fourth vibration damper 33 have a buffering and absorbing effect on the external force received. In this way, the third vibration damper 32 and the fourth vibration damper 33 can buffer and absorb the vibration of the fan assembly 10.

[0217] With such a configuration, on the one hand, the fan housing 200 is isolated from the main housing 20 by the third vibration damper 32, and the fan housing 200 is isolated from the second connecting member 31 by the fourth vibration damper 33, and the second connecting member 31 is only connected to the main housing 20. The fan housing 200 is not in direct contact with the main housing 20, and the possibility of hard contact when the fan housing 200 and the main housing 20 are in indirect contact is avoided, thereby realizing a vibration-damping connection between the fan housing 200 and the main housing 20. The vibration intensity of the fan assembly 10 is reduced by the buffering and absorption effects of the third vibration damper 32 and the fourth vibration damper 33 on vibration.

[0218] On the other hand, in the circumferential direction of the fan housing 200 (or the main housing 20), the second vibration-damping connection structure 30 occupies only a small space, and the contact area between the second vibration-damping connection structure 30 and the fan housing 200 and between the second vibration-damping connection structure 30 and the main housing 20 is small, and the second vibration-damping connection structure 30 and the fan housing 200 and the main housing 20 are equivalent to point contact. In this way, the force-bearing area of ​​the second vibration-damping connection structure 30 transmitting vibration is small, the installation vibration isolation rate of the fan assembly 10 is high, and the vibration noise of the cleaning equipment can be reduced.

[0219] In practical applications, the area, shape, thickness and other parameters of the third vibration damper 32 and the fourth vibration damper 33 can be designed according to the stability and reliability requirements of the installation of the fan assembly 10 and the vibration reduction requirements of the fan assembly 10, and the embodiments of the present application do not impose specific restrictions on this.

[0220] The third vibration damper 32 may be a one-piece member, or the third vibration damper 32 may include two or more third vibration damper sheets, each of which is stacked in sequence. Similar to the third vibration damper 32, the fourth vibration damper 33 may be a one-piece member, or the fourth vibration damper 33 may include two or more fourth vibration damper sheets, each of which is stacked in sequence. No further details will be given here.

[0221] Continue to refer to Fig.21 Since the second connecting member 31 is located at the side of the third connecting portion 220 of the fan housing 200 away from the fourth connecting portion 23 of the main housing 20, in order to achieve the connection between the second connecting member 31 and the main housing 20, a second assembly hole 221 may be opened on the third connecting portion 220 of the fan housing 200. The second assembly hole 221 exposes the fourth connecting portion 23 of the main housing 20, and at least one of the fourth connecting portion 23 and the second connecting member 31 passes through the second assembly hole 221 to achieve the connection between the second connecting member 31 and the fourth connecting portion 23.

[0222] Reference Fig.21As shown, in some embodiments, the fourth connection portion 23 on the main housing 20 may include a second connection column 232, the second connection column 232 protrudes on the inner wall surface of the main housing 20, and the second connection column 232 extends toward the third connection portion 220 of the fan housing 200. The second connection column 232 may correspond to the second assembly hole 221 on the third connection portion 220, and the second connection member 31 is connected to the second connection column 232.

[0223] Furthermore, the fourth connection portion 23 may further include a second mounting portion 231 located on the inner wall surface of the main housing 20, the second connection column 232 may protrude above the second mounting portion 231, the end surface of the second mounting portion 231 facing the third connection portion 220 of the fan housing 200 may be a plane, and the third vibration damping member 32 may abut against the end surface of the second mounting portion 231. For example, the second mounting portion 231 may include a plurality of reinforcing plates a (such as Fig.18 As shown in ), each reinforcing plate a is arranged at intervals along the circumferential direction and connected to the outer side wall of the second connecting column 232. Alternatively, the second mounting portion 231 may also include a mounting platform, which may protrude on the inner wall surface of the main housing 20, and the second connecting column 232 is located on the mounting platform.

[0224] As an example, the extension height of the second connecting column 232 can be greater, and the second connecting column 232 can pass through the second assembly hole 221 on the third connecting portion 220 of the fan housing 200 and extend to the other side of the third connecting portion 220 (see Fig.21 As shown). In this way, the connection between the second connecting member 31 and the second connecting column 232 is facilitated, and the positioning of the fan housing 200 is facilitated, which helps to increase the connection area between the second connecting column 232 and the second connecting member 31, enhance the connection strength between the second connecting column 232 and the second connecting member 31, and make the fan housing 200 and the main housing 20 firmly connected. At this time, the third vibration damping member 32 abutting between the third connecting portion 220 of the fan housing 200 and the fourth connecting portion 23 of the main housing 20 can be sleeved outside the second connecting column 232, and the fourth vibration damping member 33 abutting between the third connecting portion 220 of the fan housing 200 and the second connecting member 31 can also be sleeved outside the second connecting column 232.

[0225] As another example, the extension height of the second connecting column 232 can be smaller, and there can be a gap between the top of the second connecting column 232 and the third connecting portion 220 on the fan housing 200, or the top of the second connecting column 232 is inserted into the second assembly hole 221. The second connecting member 31 passes through the second assembly hole 221 and is connected to the second connecting column 232, or the second connecting member 31 extends into the second assembly hole 221 and is connected to the second connecting column 232. At this time, the third vibration damping member 32 can be sleeved outside the second connecting column 232, and the fourth vibration damping member 33 can be sleeved outside the second connecting member 31.

[0226] When the fourth connection portion 23 on the main housing 20 includes a second connection column 232, a threaded connection can be adopted between the second connection member 31 and the second connection column 232. For example, the second connection column 232 can be a hollow column, the inner side wall of the second connection column 232 can be provided with an internal thread, and the outer side wall of the second connection member 31 can be provided with an external thread (the second connection member 31 is, for example, a screw or a bolt), and the second connection member 31 is screwed into the second connection column 232 to achieve a threaded connection between the second connection member 31 and the first connection column 1212. Alternatively, the second connection member 31 is a hollow column, the inner side wall of the second connection member 31 can be provided with an internal thread, and the outer side wall of the second connection column 232 can be provided with an external thread, and the second connection member 31 is rotatably sleeved outside the second connection column 232 to achieve the connection between the second connection member 31 and the second connection column 232.

[0227] Alternatively, the second connecting member 31 and the second connecting column 232 may be connected in other ways, for example, the second connecting member 31 and the second connecting column 232 are fixedly connected together by bonding, welding, etc. When the connection reliability can be guaranteed, one of the second connecting member 31 and the second connecting column 232 may be provided with a buckle, and the other may be provided with a clamping hole or a clamping groove, and the second connecting member 31 and the second connecting column 232 may be connected in a clamping manner.

[0228] In other embodiments, the fourth connection portion 23 on the main housing 20 may not include the second connection column 232. For example, the fourth connection portion 23 may only include the aforementioned second mounting portion 231. In this case, the second connection member 31 may pass through the second assembly hole 221 on the third connection portion 220 of the fan housing 200 and be connected to the second mounting portion 231 on the main housing 20.

[0229] At this time, the second mounting portion 231 on the main housing 20 can be designed in the form of a mounting platform, and the second connecting member 31 is connected to the second mounting portion 231. In some examples, a second connecting hole (not shown in the figure) is opened on the second mounting portion 231, and the second connecting member 31 extends into the second connecting hole to achieve the connection between the second connecting member 31 and the main housing 20. For example, the hole wall of the second connecting hole can be provided with an internal thread, and the outer side wall of the second connecting member 31 can be provided with an external thread (the second connecting member 31 is, for example, a screw or a bolt), and the second connecting member 31 is screwed into the second connecting hole so that the second connecting member 31 is threadedly connected in the second connecting hole.

[0230] In other examples, the second mounting portion 231 may not have a second connection hole, and the second connector 31 and the second mounting portion 231 may be connected in other ways. For example, the second connector 31 and the second mounting portion 231 are fixedly connected together by bonding, welding, etc. When the connection reliability can be guaranteed, one of the second connector 31 and the second mounting portion 231 may be provided with a buckle, and the other may be provided with a clamping hole or a clamping groove, and the second connector 31 and the second mounting portion 231 may be connected in a clamping manner.

[0231] When the fourth connection part 23 on the main housing 20 does not include the second connection column 232, and the second connection member 31 passes through the second assembly hole 221 on the third connection part 220 of the fan housing 200, the second connection member 31 can pass through the fourth vibration damper 33 and the third vibration damper 32 in sequence to be connected to the fourth connection part 23. Wherein, when the cross-sectional area (outer diameter) of the second connection member 31 is large, the third vibration damper 32 and the fourth vibration damper 33 can have a central hole, the third vibration damper 32 and the fourth vibration damper 33 are annular members, and the third vibration damper 32 and the fourth vibration damper 33 are sleeved outside the second connection member 31. When the cross-sectional area (outer diameter) of the second connection member 31 is small, only the third vibration damper 32 and the fourth vibration damper 33 can be slit, and the second connection member 31 can pass through the slits on the fourth vibration damper 33 and the third vibration damper 32.

[0232] In addition, when the second connecting member 31 is a small-sized structural member such as a screw or a bolt, in order to ensure that the second connecting member 31 and the fourth vibration damping member 33 are in stable contact, in some embodiments, a gasket b (such as Fig.21 The gasket b can be sleeved on the second connecting member 31, and the gasket b contacts the surface of the fourth vibration damper 33, and the fourth vibration damper 33 abuts between the third connecting portion 220 of the fan housing 200 and the gasket b to ensure the stability and reliability of the fourth vibration damper 33.

[0233] 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" and the like 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.

[0234] It should be noted that the embodiments represented by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments that are explicitly or not explicitly described.

[0235] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fan assembly, characterized in that: include: A fan is provided with a plurality of first connecting parts at intervals; A fan casing is arranged outside the fan, and a plurality of second connecting parts are arranged at intervals on the fan casing; A plurality of first vibration-damping connection structures, wherein the first vibration-damping connection structures fixedly connect the first connection portion and the second connection portion; The first vibration-damping connection structure includes a first vibration-damping member, a second vibration-damping member and a first connecting member, the first vibration-damping member abuts between the first connecting portion and the second connecting portion, the second vibration-damping member abuts between the second connecting portion and the first connecting member, and the first connecting member is connected to the first connecting portion.

2. The fan assembly according to claim 1, characterized in that: The second connecting portion is provided with a first assembly hole, and at least one of the first connecting portion and the first connecting member passes through the first assembly hole.

3. The fan assembly according to claim 2, characterized in that: The first connecting portion includes a first connecting column protruding on the outer wall surface of the fan, and the first connecting member is connected to the first connecting column; Wherein, at least the first vibration damping member is disposed outside the first connecting column.

4. The fan assembly according to claim 3, characterized in that: The first connecting column passes through the first assembly hole and extends out of the fan housing; Wherein, the first vibration damping member and the second vibration damping member are both sleeved outside the first connecting column.

5. The fan assembly according to claim 3, characterized in that: One of the first connecting column and the first connecting member has an external thread, and the other has an internal thread, and the first connecting column is threadedly connected to the first connecting member.

6. The fan assembly according to claim 2, characterized in that: The first connecting portion includes a first connecting hole opened on the fan, and the first connecting member passes through the first assembly hole and extends into the first connecting hole; Wherein, the first connecting member passes through the second vibration damping member and the first vibration damping member in sequence.

7. The fan assembly according to claim 6, characterized in that: The hole wall of the first connecting hole is provided with an internal thread, the outer side wall of the first connecting member is provided with an external thread matching the internal thread, and the first connecting member is threadedly connected in the first connecting hole.

8. The fan assembly according to any one of claims 1 to 7, characterized in that: The second connection portion includes a partition portion, and the first vibration damper and the second vibration damper are separated on both sides of the partition portion.

9. The fan assembly according to claim 8, characterized in that: The second connecting portion further comprises a panel portion, the panel portion being connected to a side of the partition portion away from the fan, and the panel portion being arranged around a circumference of the partition portion; The enclosure portion and the partition portion together form a mounting groove, and the second vibration damping member is at least partially located in the mounting groove.

10. The fan assembly according to claim 9, characterized in that: Along the circumference of the enclosure portion, the enclosure portion includes a first wall and a second wall that are connected, and a connection between the first wall and the second wall is a turning angle, or the first wall and the second wall have a smooth transition.

11. The fan assembly according to any one of claims 1 to 7, characterized in that: The first connection portions are arranged at intervals along the circumferential direction on the outer periphery of the air inlet of the fan.

12. The fan assembly according to claim 11, characterized in that: The first connection portions are evenly spaced along the circumference of the fan.

13. The fan assembly according to any one of claims 1 to 7, characterized in that: The fan comprises: Fan body; An air guide cover is sleeved on the outer periphery of the fan body and forms an air duct with the fan body; Wherein, the first connecting portion is arranged on the air guide cover.

14. The fan assembly according to any one of claims 1 to 7, characterized in that: The thickness of the first vibration dampening member is greater than the thickness of the second vibration dampening member.

15. The fan assembly according to any one of claims 1 to 7, characterized in that: A vibration damping groove is provided on an outer wall surface of at least one of the first vibration damping member and the second vibration damping member.

16. The fan assembly according to claim 15, characterized in that: The vibration-absorbing groove includes at least one of an end surface vibration-absorbing groove and a side surface vibration-absorbing groove; The end surface vibration damping groove is arranged on the end surface of at least one of the first vibration damping member and the second vibration damping member, and the side surface vibration damping groove is arranged on the side wall of at least one of the first vibration damping member and the second vibration damping member.

17. The fan assembly according to any one of claims 1 to 7, characterized in that: At least one of the first vibration damping member and the second vibration damping member is provided with a plurality of vibration damping holes extending in a thickness direction.

18. The fan assembly according to claim 17, characterized in that: A plurality of circles of the vibration damping holes are arranged at intervals from the center of the first vibration damping member to the edge of the first vibration damping member, and the vibration damping holes are evenly spaced along the circumference of the first vibration damping member; and / or, A plurality of circles of the vibration damping holes are arranged at intervals from the center of the second vibration damping member to the edge of the second vibration damping member, and the vibration damping holes are arranged at even intervals along the circumference of the second vibration damping member.

19. The fan assembly according to claim 17, characterized in that: At least part of the vibration-slowing holes are through holes, or at least part of the vibration-slowing holes are blind holes.

20. The fan assembly according to any one of claims 1 to 7, characterized in that: The first vibration damping member is a one-piece member, or the first vibration damping member includes two or more stacked first vibration damping sheets; The second vibration damping member is a one-piece member, or the second vibration damping member includes two or more stacked second vibration damping sheets.

21. A cleaning device, characterized in that: include: A main housing and a fan assembly as described in any one of claims 1 to 20, wherein the fan assembly is mounted on the main housing.

22. The cleaning device according to claim 21, characterized in that The cleaning device further comprises a plurality of second vibration-damping connection structures, wherein the second vibration-damping connection structures fixedly connect the fan housing of the fan assembly and the main housing.

23. The cleaning device according to claim 22, characterized in that The fan housing is provided with a plurality of third connection parts at intervals, the main housing is provided with a plurality of fourth connection parts at intervals, and the second vibration-damping connection structure is connected between the third connection parts and the fourth connection parts; Wherein, the second vibration damping connection structure includes a third vibration damping member, a fourth vibration damping member and a second connecting member, the third vibration damping member abuts between the third connecting portion and the fourth connecting portion, the fourth vibration damping member abuts between the third connecting portion and the second connecting member, and the second connecting member is connected to the fourth connecting portion.

24. The cleaning device according to claim 23, characterized in that The third connecting portion is provided with a second assembly hole, and at least one of the fourth connecting portion and the second connecting member passes through the second assembly hole.

25. The cleaning device according to claim 24, characterized in that The fourth connecting portion includes a second connecting column protruding from the inner wall surface of the main housing, and the second connecting member is connected to the second connecting column; Wherein, at least the third vibration damping member is arranged outside the second connecting column.

26. The cleaning device according to claim 25, characterized in that The second connecting column passes through the second assembly hole, and the third vibration damping member and the fourth vibration damping member are both sleeved outside the second connecting column.

27. The cleaning device according to claim 25, characterized in that One of the second connecting column and the second connecting member has an external thread, and the other has an internal thread matching the external thread, and the second connecting column is threadedly connected to the second connecting member.

28. The cleaning device according to claim 24, characterized in that The fourth connecting portion includes a second connecting hole formed on the inner wall of the main housing, and the second connecting member passes through the second assembly hole and extends into the second connecting hole; Wherein, the second connecting member passes through the fourth vibration damping member and the third vibration damping member in sequence.

29. The cleaning device according to claim 28, characterized in that The hole wall of the second connecting hole is provided with an internal thread, the outer side wall of the second connecting member is provided with an external thread, and the second connecting member is threadedly connected in the second connecting hole.

30. The cleaning device according to any one of claims 23 to 29, characterized in that The third vibration damping member is an integral member, or the third vibration damping member includes two or more stacked third vibration damping sheets; The fourth vibration damping member is an integral member, or the fourth vibration damping member includes two or more stacked fourth vibration damping sheets.

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