CN220337161U - Fan assembly and cleaning base station - Google Patents

Abstract

The utility model discloses a fan assembly and a cleaning base station, wherein the fan assembly comprises: an air inlet part and at least one air outlet part; noise reducer, noise reducer detachably locates in the air-out portion, noise reducer includes: the device comprises a first air pipe and a second air pipe, wherein the axis of the first air pipe and the axis of the second air pipe are not collinear. Through being equipped with the ware of making an uproar that falls in air-out department for first trachea and second trachea are stagger distribution, utilize the resistance principle of making an uproar that falls, when the air current passes through first trachea and second trachea, can effectively consume the air current energy, reach the effect of reduction wind speed, thereby reduce wind noise.

Description

Fan assembly and cleaning base station

Technical Field

The utility model relates to the technical field of fans, in particular to a fan assembly and a cleaning base station.

Background

In the existing base station of the floor scrubber or the base station of the floor sweeper, a sewage pumping fan is usually arranged to self-clean the floor scrubber or the floor sweeper. In order to provide enough negative pressure to blow down or collect dust on a scrubber or sweeper, the dirt-extracting fan generally has a higher rotation speed, but the noise generated by the dirt-extracting fan is large, which affects the user experience.

In the related art, the damping member is mostly wrapped outside the suction fan to reduce noise. However, since the fan rotates to generate a large amount of heat, the heat of the fan cannot be effectively dissipated, and therefore, the fan noise reduction structure needs to be reasonably arranged.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a fan assembly, the noise reducer is arranged at the air outlet part, the first air pipe and the second air pipe are distributed in a staggered manner, the energy of air flow can be effectively consumed by utilizing the resistance noise reduction principle, the effect of reducing the wind speed is achieved, and the wind noise is reduced.

The utility model further proposes a cleaning base station.

A fan assembly according to an embodiment of the first aspect of the present utility model for cleaning a base station, the fan assembly comprising: an air inlet part and at least one air outlet part; noise reducer, noise reducer detachably locates in the air-out portion, noise reducer includes: the device comprises a first air pipe and a second air pipe, wherein the axis of the first air pipe and the axis of the second air pipe are not collinear.

According to the fan assembly provided by the embodiment of the utility model, the noise reducer is arranged at the air outlet part, so that the first air pipe and the second air pipe are staggered and are not in butt joint communication, when air flows pass through the first air pipe and the second air pipe, the energy of the air flow can be effectively consumed by utilizing the resistance noise reduction principle of the noise reducer, the effect of reducing the wind speed is achieved, and the wind noise is reduced.

According to some embodiments of the utility model, the axis of the first air tube and the axis of the second air tube are parallel to each other.

According to some embodiments of the utility model, the first and second air tubes are completely offset.

According to some embodiments of the utility model, the first air pipe is disposed on a side outside the air outlet portion, the second air pipe is disposed on a side inside the air outlet portion, a length dimension of the first air pipe is L1, a length dimension of the second air pipe is L2, a length dimension of the noise reducer is L, and a relationship between L and L1 is satisfied: l1 is more than 0.2L and less than 0.3L; and/or, the relation between L and L2 is satisfied: 0.4L < L2 < 0.6L.

According to some embodiments of the utility model, the cross-sectional area of the first air pipe is S1, the cross-sectional area of the second air pipe is S2, the cross-sectional area of the noise reducer is S, and the relation among S, S1 and S2 is satisfied: (S1+S2) > 1/9S.

According to some embodiments of the utility model, the ratio of the length dimension of the first air tube to the length dimension of the second air tube is a, the a satisfying the relation: a is more than 0.4 and less than 0.6.

According to some embodiments of the utility model, the noise reducer comprises a first noise reducer comprising the first air pipe and a second noise reducer comprising the second air pipe.

According to some embodiments of the utility model, the first noise reduction body further comprises a first noise reduction shell and a first sound absorbing member, the first air pipe is arranged in the first noise reduction shell, and the first sound absorbing member is filled in a space of the first noise reduction shell except the first air pipe; and/or, the second noise reduction body further comprises a second noise reduction shell and a second noise absorption piece, the second air pipe is arranged in the second noise reduction shell, and the second noise absorption piece is filled in a space of the second noise reduction shell except for the second air pipe.

According to some embodiments of the utility model, the first noise reduction body and the second noise reduction body are mutually engaged and matched, the first noise reduction body is provided with a first clamping part, the second noise reduction body is provided with a second clamping part, and the first clamping part and the second clamping part are in clamping and matched.

According to some embodiments of the utility model, the fan body includes a fan, and the air outlet is two and includes: the first air outlet part and the second air outlet part; the first air outlet part is arranged on one side close to the fan, air flows through the fan and is discharged from the first air outlet part after entering the fan assembly, the second air outlet part is arranged on one side close to the air inlet part, and air flows from the air inlet part to the fan assembly and is discharged from the second air outlet part.

According to some embodiments of the utility model, the first air outlet portion has an extension length greater than an extension length of the second air outlet portion.

According to some embodiments of the utility model, the noise reducer is disposed in the first air outlet portion.

A fan assembly according to an embodiment of the first aspect of the present utility model, the fan assembly comprising: the air inlet part, the first air outlet part, the second air outlet part, the turbine fan blade and the fan; the fan assembly is provided with a first airflow path and a second airflow path, airflow in the first airflow path flows through the fan, enters the fan assembly and then is discharged from the first air outlet portion, and airflow in the second airflow path enters the fan assembly from the air inlet portion and then is discharged from the second air outlet portion.

According to some embodiments of the utility model, the first air outlet is provided with a noise reducer, the noise reducer comprises a first air pipe and a second air pipe, and the axis of the first air pipe and the axis of the second air pipe are not collinear.

According to some embodiments of the utility model, the axis of the first air tube and the axis of the second air tube are parallel to each other.

According to some embodiments of the utility model, the first and second air tubes are completely offset.

According to some embodiments of the utility model, the first air pipe is disposed on a side of the first air outlet portion, the second air pipe is disposed on a side of the first air outlet portion, the length dimension of the first air pipe is L1, the length dimension of the second air pipe is L2, the length dimension of the noise reducer is L, and the relationship between L and L1 is satisfied: l1 is more than 0.2L and less than 0.3L; and/or, the relation between L and L2 is satisfied: 0.4L < L2 < 0.6L.

According to some embodiments of the utility model, the cross-sectional area of the first air pipe is S1, the cross-sectional area of the second air pipe is S2, the cross-sectional area of the noise reducer is S, and the relation among S, S1 and S2 is satisfied: (S1+S2) > 1/9S.

According to some embodiments of the utility model, the ratio of the length dimension of the first air tube to the length dimension of the second air tube is a, the a satisfying the relation: a is more than 0.4 and less than 0.6.

According to some embodiments of the utility model, the noise reducer comprises a first noise reducer comprising the first air pipe and a second noise reducer comprising the second air pipe.

According to some embodiments of the utility model, the first noise reduction body further comprises a first noise reduction shell and a first sound absorbing member, the first air pipe is arranged in the first noise reduction shell, and the first sound absorbing member is filled in a space of the first noise reduction shell except for the first air pipe; and/or, the second noise reduction body further comprises a second noise reduction shell and a second noise absorption piece, the second air pipe is arranged in the second noise reduction shell, and the second noise absorption piece is filled in a space of the second noise reduction shell except for the second air pipe.

According to some embodiments of the utility model, the first noise reduction body and the second noise reduction body are mutually engaged and matched, the first noise reduction body is provided with a first clamping part, the second noise reduction body is provided with a second clamping part, and the first clamping part and the second clamping part are in clamping and matched.

According to some embodiments of the utility model, the first air outlet portion has an extension length greater than an extension length of the second air outlet portion.

According to an embodiment of the second aspect of the present utility model, a cleaning base station includes: a water tank having a suction port; the fan assembly is characterized in that a suction pipeline is connected between the air inlet part and the suction port, so that when the fan assembly operates, air flow in the water tank can be sucked into the fan assembly and discharged through at least one air outlet part.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of a fan assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a fan assembly and noise reducer assembly according to an embodiment of the present utility model;

FIG. 3 is an exploded schematic view of a fan assembly and noise reducer assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a fan assembly at an air outlet in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a noise reducer according to an embodiment of the utility model;

FIG. 6 is an exploded view of a noise reducer at a first viewing angle according to an embodiment of the utility model;

FIG. 7 is an exploded view of a noise reducer at a second viewing angle according to an embodiment of the utility model;

FIG. 8 is an exploded view of a noise reducer at a third perspective in accordance with an embodiment of the utility model;

FIG. 9 is a schematic illustration of a location between a first trachea and a second trachea according to an embodiment of the utility model;

FIG. 10 is an exploded view of a second noise reducer at a first viewing angle, according to an embodiment of the utility model;

FIG. 11 is an exploded view of a second noise reducer at a second viewing angle, according to an embodiment of the utility model;

FIG. 12 is a schematic view of a structure of a second noise reduction body with respect to a second air pipe according to an embodiment of the present utility model;

FIG. 13 is an exploded view of a first noise reducer according to an embodiment of the utility model;

FIG. 14 is a schematic view of a first embodiment of a first noise reducer for a first air pipe;

FIG. 15 is a second schematic view of a first air pipe in a first noise reducer according to an embodiment of the utility model;

FIG. 16 is a schematic diagram of an airflow path of a fan assembly according to an embodiment of the utility model.

Reference numerals:

100. a fan assembly;

1. a fan housing; 11. an air inlet part; 12. an air outlet part; 121. a first air outlet part; 122. a second air outlet part;

2. a fan body; 21. turbine blades; 22. a fan; 23. a sealing structure;

3. a noise reducer;

31. a first noise reduction body; 311. a first air tube; 312. a first noise reduction shell; 313. a first sound absorbing member; 314. a first clamping part;

32. a second noise reduction body; 321. a second air pipe; 322. a second noise reduction housing; 323. a second sound absorbing member; 324. a second clamping part;

4. a first airflow path; 5. a second airflow path.

Detailed Description

Embodiments of the present utility model will be described in detail below, by way of example with reference to the accompanying drawings.

A blower assembly for cleaning a base station according to an embodiment of the present utility model is described below with reference to fig. 1 to 16.

As shown in fig. 1-9, the fan assembly 100 includes: an air inlet part 11, at least one air outlet part 12 and a noise reducer 3.

For example, a blower assembly 100 is provided in a cleaning base station of the sweeper to self-clean the sweeper. The air inlet portion 11 of the fan assembly 100 is used for being communicated with a sewage tank of a cleaning base station, when the fan body 2 operates, air flow in the sewage tank can be pumped into the fan assembly 100, air flow is discharged from the air outlet portion 12, a large negative pressure is formed in the sewage tank, and dirty liquid in the sweeper can be sucked into the sewage tank of the cleaning base station by utilizing the negative pressure.

Specifically, the fan assembly 100 includes a fan housing 1, and a fan body 2 located in the fan housing 1, where the fan body 2 includes turbine blades 21, and the turbine blades 21 rotate under the driving of a rotating shaft to suck air flow, so as to provide a vacuum condition.

In addition, the air outlet 12 of the fan assembly 100 may also be used to dissipate heat.

Generally, the fan assembly 100 has a high rotation speed, which can cause the fan assembly 100 to generate great noise and affect the user experience, and for this reason, the fan assembly 100 is provided with a noise reducer 3 at the air outlet 12, so as to reduce noise.

It should be noted that, the above noise reduction means to reduce wind noise, and the noise reducer 3 blocks wind passing through the wind outlet channel where the wind outlet portion 12 is located, so that the wind outlet speed of the wind outlet channel is smaller than the wind inlet speed, thereby reducing wind noise.

The noise reducer 3 is detachably provided in the air outlet portion 12. Thus, not only the air flow to be discharged from the air outlet 12 can be noise reduced, but also the installation and maintenance are facilitated, the flexibility of the noise reducer 3 is improved, and the replacement cost is reduced.

Wherein the noise reducer 3 includes: first trachea 311 and second trachea 321, the axis of first trachea 311 and the axis of second trachea 321 are non-collinear.

Specifically, the axis of first gas pipe 311 and the axis of second gas pipe 321 are not collinear, in other words, first gas pipe 311 and second gas pipe 321 are distributed in a staggered manner, and are not in direct butt-joint communication. When the air flow passes through the first air pipe 311 and the second air pipe 321, the flowing direction of the air flow is suddenly changed at the junction between the first air pipe 311 and the second air pipe 321, so that the energy of the air flow is effectively consumed, the effect of reducing the wind speed is achieved, and the wind noise is reduced.

The first air pipe 311 and the second air pipe 321 are staggered, so that the phenomena of reflection, interference and the like of the air flow at the abrupt interface are caused by utilizing the principle of resistance noise reduction, and the purpose of noise reduction is achieved.

Furthermore, the noise reducer 3 may further include: and the third air pipe is arranged at one end of the second air pipe 321, which is away from the first air pipe 311, and the axis of the third air pipe is not collinear with the axis of the second air pipe 321.

Of course, the noise reducer 3 may further include: fourth air duct, fifth air duct, etc., the plurality of air ducts are provided in order in the air-out direction of the air-out portion 12, and the axes of the adjacent air ducts are not collinear. The specific structure of the noise reducer 3 can be designed according to the length of the air outlet channel where the air outlet portion 12 is located.

From this, through being equipped with the ware of making an uproar 3 in air-out portion 12 department for first trachea 311 and second trachea 321 are stagger and distribute, utilize the resistance to fall the principle of making an uproar, when the air current passes through first trachea 311 and second trachea 321, abrupt change the flow direction of air current in the juncture between first trachea 311 and second trachea 321, can effectively consume the energy of air current, reach the effect of reduction wind speed, thereby realize reducing wind noise, satisfy user's comfort experience.

In some embodiments of the present utility model, the axis of first air tube 311 and the axis of second air tube 321 are parallel to each other.

In other words, on the basis of the design that the first air pipe 311 and the second air pipe 321 are distributed in a staggered manner, the axis of the first air pipe 311 and the axis of the second air pipe 321 are parallel to the air outlet direction of the air outlet portion 12. Thus, when the air flow passes through the first air pipe 311 and the second air pipe 321, on one hand, the energy of the air flow can be effectively consumed, the effect of reducing the wind speed is achieved, and the wind noise is reduced; on the other hand, the air flow can be made to flow out quickly along the air outlet direction of the air outlet portion 12.

In some embodiments of the present utility model, first gas tube 311 and second gas tube 321 are completely offset. Thus, when the air flow enters the second air pipe 321 from the first air pipe 311 or enters the first air pipe 311 from the second air pipe 321, the flowing direction of the air flow at the junction of the first air pipe 311 and the second air pipe 321 can be changed to a greater extent, so that the energy of the air flow is further consumed, and the effect of reducing wind noise is improved.

Further, the first air pipe 311 is disposed on the outer side of the air outlet 12, the second air pipe 321 is disposed on the inner side of the air outlet 12, the length of the first air pipe 311 is L1, the length of the second air pipe 321 is L2, and the length of the noise reducer 3 is L, where the length of the noise reducer satisfies the relationship between L and L1: l1 is more than 0.2L and less than 0.3L; and/or, the relation between L and L2 is satisfied: 0.4L < L2 < 0.6L.

That is, in the air outlet passage in which the air outlet portion 12 is located, the first air pipe 311 is disposed on the outer side of the air outlet passage, and the second air pipe 321 is disposed on the inner side of the air outlet passage.

The length of the first air pipe 311 is about 0.2-0.3 of the overall length of the noise reducer 3, and the length of the second air pipe 321 is about 0.4-0.6 of the overall length of the noise reducer 3, so that the air flow passes through the second air pipe 321 with a relatively longer length, consumes a larger part of air flow energy, passes through the first air pipe 311 with a relatively shorter length, and absorbs a part of air flow energy again, thereby ensuring the effect of reducing the wind speed.

In one embodiment of the present disclosure, the length of the first air pipe 311 is one-fourth of the overall length of the noise reducer 3, and the length of the second air pipe 321 is one-half of the overall length of the noise reducer 3, so that the energy of the air flow is effectively consumed when the air flow passes through the noise reducer 3, and the overall arrangement of the noise reducer 3 is satisfied.

Further, the cross-sectional area of the first air tube 311 is S1, the cross-sectional area of the second air tube 321 is S2, and the cross-sectional area of the noise reducer 3 is S, and the relationship between S, S1 and S2 is satisfied: (S1+S2) > 1/9S.

That is, the sum of the cross-sectional area of the first air pipe 311 and the cross-sectional area of the second air pipe 321 accounts for more than 1/9 of the cross-sectional area of the noise reducer 3, so as to ensure that the air flow extracted by the fan assembly 100 can smoothly flow out through the first air pipe 311 and the second air pipe 321 and work in cooperation with the rotation speed of the fan body 2. In case that the cross-sectional area of the first air pipe 311 and the cross-sectional area of the second air pipe 321 are designed to be too small, the air flow is not easy to smoothly flow out no matter the rotation speed of the fan body 2 is high, thereby reducing the service performance of the fan assembly 100.

Further, the ratio of the length dimension of first gas pipe 311 to the length dimension of second gas pipe 321 is a, which satisfies the relation: a is more than 0.4 and less than 0.6. That is, the length of the first air pipe 311 is about half of the length of the second air pipe 321, which is beneficial to the air flow passing through the second air pipe 321 with a relatively longer length, and absorbs a part of the air flow energy after consuming a larger part of the air flow energy passing through the first air pipe 311 with a relatively shorter length, thereby ensuring the effect of reducing the wind speed.

As shown in fig. 5 to 13, the noise reducer 3 includes: the first noise reduction body 31 and the second noise reduction body 32, the first noise reduction body 31 includes a first air pipe 311, and the second noise reduction body 32 includes a second air pipe 321.

Thus, the first noise reduction body 31 and the second noise reduction body 32 constitute the noise reducer 3. The first air pipe 311 in the first noise reduction body 31 and the second air pipe 321 in the second noise reduction body 32 are staggered, and the phenomena of reflection, interference and the like of the air flow at the abrupt interface are caused by utilizing the principle of resistance noise reduction, so that the purpose of noise reduction is achieved.

In some embodiments, the first noise reduction body 31 and the second noise reduction body 32 may be integrally formed, facilitating installation. Alternatively, the first noise reduction body 31 and the second noise reduction body 32 may be separately designed and connected to each other, which is beneficial to manufacture and maintenance.

Furthermore, the noise reducer 3 may further include: the third body of making an uproar that falls, it falls with the second and falls the body 32 and link up each other, and the third falls the body of making an uproar and includes the third trachea, and the third trachea sets up in the second trachea 321 and deviates from the one side of first trachea 311, and the tracheal axis of third and the axis of second trachea 321 are non-collineation.

Of course, the noise reducer 3 may further include: fourth noise reduction body, fifth noise reduction body, etc., the plurality of noise reduction bodies are sequentially arranged in the air outlet direction of the air outlet portion 12, and the axes of the adjacent air pipes are not collinear. The specific structure of the noise reducer 3 can be designed according to the length of the air outlet channel where the air outlet portion 12 is located.

In some embodiments of the present utility model, the first noise reduction body 31 further includes a first noise reduction shell 312 and a first sound absorbing member 313, the first air pipe 311 is disposed in the first noise reduction shell 312, and the first sound absorbing member 313 is filled in a space of the first noise reduction shell 312 except the first air pipe 311; and/or, the second noise reduction body 32 further includes a second noise reduction case 322 and a second noise absorbing member 323, the second air duct 321 is disposed in the second noise reduction case 322, and the second noise absorbing member 323 is filled in a space of the second noise reduction case 322 except the second air duct 321.

As shown in fig. 13 to 15, the first noise reducing body 31 includes, in addition to the first air duct 311, a first noise reducing case 312 and a first sound absorbing member 313, the first air duct 311 is provided in the first noise reducing case 312, for example, the first air duct 311 may be integrally formed in the first noise reducing case 312, and the first sound absorbing member 313 is filled in a space of the first noise reducing case 312 except the first air duct 311 to absorb energy of an air flow passing through the first air duct 311.

As shown in fig. 10 to 12, the second noise reducing body 32 includes, in addition to the second air duct 321, a second noise reducing case 322 and a second sound absorbing member 323, the second air duct 321 being provided in the second noise reducing case 322, for example, the second air duct 321 may be integrally formed in the second noise reducing case 322, and the second sound absorbing member 323 is filled in a space of the second noise reducing case 322 excluding the second air duct 321 to absorb energy of an air flow passing through the second air duct 321.

The first sound absorbing member 313 and the second sound absorbing member 323 may be porous sound absorbing materials, and when the sound waves propagate through the porous sound absorbing materials, the sound waves are subjected to friction and viscous resistance to convert the sound energy into heat energy to dissipate, so that the purposes of silencing and reducing sound are achieved.

And, the first sound absorbing member 313 is provided with a first through hole to be matched with the first air duct 311. That is, the first sound absorbing member 313 does not block the first air duct 311 when filling the first noise reduction case 312, so that the air flow passes through the first air duct 311. Similarly, the second sound absorbing member 323 is provided with a second through hole to be matched with the second air duct 321 so that the air flow passes through the second air duct 321.

In some embodiments of the present utility model, the first noise reduction body 31 and the second noise reduction body 32 are engaged with each other, the first noise reduction body 31 is provided with a first clamping portion 314, the second noise reduction body 32 is provided with a second clamping portion 324, and the first clamping portion 314 and the second clamping portion 324 are in clamping fit. Thus, through the clamping cooperation of the first clamping part 314 and the second clamping part 324, the connection cooperation between the first noise reduction body 31 and the second noise reduction body 32 can be realized, and the installation and the disassembly are convenient.

In one embodiment of the present disclosure, the first clamping portion 314 is a buckle, the second clamping portion 324 is a clamping block, and the buckle is matched with the clamping block in a clamping manner, so as to realize connection between the first noise reduction body 31 and the second noise reduction body 32.

Specifically, the fan assembly 100 includes: the fans 22 have two air outlet portions 12 and include: a first air outlet portion 121 and a second air outlet portion 122; the first air outlet portion 121 is disposed at a side near the fan 22, and the air flow flows through the fan 22 and enters the fan assembly 100 to be discharged from the first air outlet portion 121, the second air outlet portion 122 is disposed at a side near the air inlet portion 11, and the air flow enters the fan assembly 100 from the air inlet portion 11 and then is discharged from the second air outlet portion 122.

It should be understood that "the first air outlet 121 is disposed at a side close to the fan 22, and the air flow passes through the fan 22 and enters the fan assembly 100 and then is exhausted from the first air outlet 121", which means that the air flow from the outside is introduced into the fan assembly 100 under the rotation of the fan 22, so as to cool and dissipate heat of electrical components in the fan assembly 100, and the air flow carrying heat is exhausted from the first air outlet 121, thereby improving the service life of the fan assembly 100.

The "second air outlet 122 is disposed near the air inlet 11, and the air flow enters the fan assembly 100 from the air inlet 11 and is then exhausted from the second air outlet 122" means that the air flow is sucked from the air inlet 11 under the rotation of the turbine blade 21 to provide a vacuum condition and is exhausted from the second air outlet 122.

Therefore, the first air outlet 121 is mainly used for discharging the heat dissipation air flow, and the second air outlet 122 is mainly used for discharging the suction air flow.

That is, in addition to the turbine blade 21 being disposed in the fan assembly 100 of the present utility model, the turbine blade 21 is driven by the rotating shaft to rotate to draw the air flow, so as to provide the vacuumizing condition, the fan assembly 100 also has a heat dissipation function, that is, the fan 22 is disposed on the fan body 2, so that the external air can be sucked into the fan assembly 100, then passes through the area where the electrical components are located, thereby achieving the heat dissipation effect, and is discharged from the first air outlet 121.

It should be noted that the air flow channel formed by the "air flow flowing through the fan 22 and being discharged from the first air outlet portion 121 after entering the fan assembly 100" is not communicated with the air flow channel formed by the "air flow flowing from the air inlet portion 11 and being discharged from the second air outlet portion 122 after entering the fan assembly 100".

In one embodiment of the present disclosure, referring to fig. 16, the air flow on the left side is the suction air flow driven by the rotation of the turbine blade 21 in the fan assembly 100 under the driving of the rotation shaft, the air flow on the right side is the heat dissipation air flow formed after the air drawn by the rotation of the fan 22 enters the fan assembly 100, and a sealing structure 23 is disposed between the turbine blade 21 and the fan 22 to separate the air flow channel where the suction air flow is located and the air flow channel where the heat dissipation air flow is located, so as to ensure that the heat dissipation air flow does not flow to the area where the turbine blade 21 is located.

In addition, since the fan assembly 100 includes the fan 22, the fan housing 1 has two parts, one for protecting the working area where the turbine blade 21 is located and the other for protecting the working area where the fan 22 is located.

In the prior art, although the fan is arranged in the fan to radiate heat, the fan only guides the air flow in the air into the fan, and the fan is not provided with an outlet, so that the air flow is turned inside the fan, the noise is larger, and the radiating effect is poor. In the fan assembly 100 of the present utility model, the first air outlet portion 121 is provided, so that the heat dissipation air flow can be discharged from the first air outlet portion 121, thereby reducing noise and improving heat dissipation effect.

In addition, the noise reducer 3 is disposed in the first air outlet portion 121, so as to achieve a better noise reduction effect.

For example, installing the blower assembly 100 in a clean base station requires heat dissipation because the installation environment is relatively closed.

In addition, the extension length of the first air outlet portion 121 is greater than the extension length of the second air outlet portion 122. That is, in the flow direction of the gas, the air outlet passage in which the second air outlet portion 122 is located is relatively short, and a sound absorbing member such as a sponge may be provided in the second air outlet portion 122 to reduce noise. The first air outlet portion 121 is long enough in the flowing direction of the air, so the noise reducer 3 is installed in the first air outlet portion 121 to effectively reduce the wind noise.

A fan assembly 100 according to another embodiment of the present utility model, as shown in fig. 1-16, the fan assembly 100 includes: the fan assembly 100 is provided with a first airflow path 4 and a second airflow path 5, wherein the airflow of the first airflow path 4 flows through the fan 22 and enters the fan assembly 100, then is discharged from the first air outlet 121, and the airflow of the second airflow path 5 enters the fan assembly 100 from the air inlet 11 and then is discharged from the second air outlet 122.

The first air outlet portion 121 is provided with a noise reducer 3, the noise reducer 3 includes a first air pipe 311 and a second air pipe 321, and an axis of the first air pipe 311 and an axis of the second air pipe 321 are not collinear.

Thereby, the air flow is sucked from the air inlet portion 11 into the fan assembly 100 by the rotation of the turbine blade 21, and is discharged from the second air outlet portion 122, that is, the second air flow path 5 is used for sucking the flow and discharging of the air flow. And, the external air flow is introduced into the fan assembly 100 under the rotation of the fan 22, so as to cool and dissipate heat of electrical components in the fan assembly 100, and the air flow carrying heat is discharged from the first air outlet 121, the first air flow path 4 is used for flowing and discharging the heat dissipating air flow, and the first air flow path 4 and the second air flow path 5 are not communicated with each other. And, be equipped with the ware of making an uproar 3 of making an uproar in first air-out portion 121 for first trachea 311 and second trachea 321 are the staggered distribution, utilize the resistance to make an uproar principle of making an uproar, can effectively consume the energy of air current, reach the effect of reducing the wind speed, thereby greatly reduced wind noise problem.

In some embodiments, the axis of first gas tube 311 and the axis of second gas tube 321 are parallel to each other.

In some embodiments, first gas tube 311 and second gas tube 321 are completely staggered.

In some embodiments, the first air pipe 311 is disposed on the outer side of the first air outlet portion 121, the second air pipe 321 is disposed on the inner side of the first air outlet portion 121, the length dimension of the first air pipe 311 is L1, the length dimension of the second air pipe 321 is L2, and the length dimensions of the noise reducer 3 are L, where the relationship between L and L1 is satisfied: l1 is more than 0.2L and less than 0.3L; and/or, the relation between L and L2 is satisfied: 0.4L < L2 < 0.6L.

In some embodiments, the cross-sectional area of the first air tube 311 is S1, the cross-sectional area of the second air tube 321 is S2, and the cross-sectional area of the noise reducer 3 is S, S, S1, and S2 satisfy the relationship: (S1+S2) > 1/9S.

In some embodiments, the ratio of the length dimension of first air tube 311 to the length dimension of second air tube 321 is a, which satisfies the relationship: a is more than 0.4 and less than 0.6.

In some embodiments, the noise reducer 3 includes a first noise reducer 31 and a second noise reducer 32, the first noise reducer 31 including a first air pipe 311, and the second noise reducer 32 including a second air pipe 321.

In some embodiments, the first noise reduction body 31 further includes a first noise reduction case 312 and a first sound absorbing member 313, the first air duct 311 is provided in the first noise reduction case 312, and the first sound absorbing member 313 is filled in a space of the first noise reduction case 312 except for the first air duct 311; and/or, the second noise reduction body 32 further includes a second noise reduction case 322 and a second sound absorbing member 323, the second air duct 321 is provided in the second noise reduction case 322, and the second sound absorbing member 323 is filled in a space of the second noise reduction case 322 except the second air duct 321.

In some embodiments, the first noise reduction body 31 and the second noise reduction body 32 are engaged with each other, the first noise reduction body 31 is provided with a first clamping portion 314, the second noise reduction body 32 is provided with a second clamping portion 324, and the first clamping portion 314 and the second clamping portion 324 are in clamping engagement.

In some embodiments, the extension length of the first air outlet 121 is greater than the extension length of the second air outlet 122.

According to an embodiment of the second aspect of the present utility model, a cleaning base station includes: a water tank having a suction port; a suction duct is connected between the air inlet portion 11 and the suction port of the fan assembly 100, so that the air flow in the water tank can be sucked into the fan assembly 100 and discharged through the at least one air outlet portion 12 when the fan assembly 100 is operated.

The air inlet portion 11 of the fan assembly 100 is communicated with the water tank of the cleaning base station through a suction pipeline, and when the turbine fan blade 21 operates, air flow in the water tank can be pumped into the fan assembly 100, so that a large negative pressure is formed in the water tank, and cleaning equipment matched with the cleaning base station, such as dirty liquid in a sweeper, can be sucked into the water tank of the cleaning base station by utilizing the negative pressure.

Therefore, by arranging the noise reducer 3 at the air outlet portion 12, the first air pipe 311 and the second air pipe 321 are staggered, and when the air flow passes through the first air pipe 311 and the second air pipe 321, the flowing direction of the air flow is suddenly changed at the junction between the first air pipe 311 and the second air pipe 321 by utilizing the resistance noise reduction principle, so that the energy of the air flow can be effectively consumed, and the effect of reducing the wind speed is achieved. In addition, the first sound absorbing member 313 is wrapped around the first air pipe 311, and the second sound absorbing member 323, such as a porous sound absorbing material, is wrapped around the second air pipe 321, so that when the air flow passes through the first air pipe 311 and the second air pipe 321, the sound wave is utilized to be rubbed and viscous resistance when the porous sound absorbing material propagates, and the sound energy is converted into heat energy to be dissipated, so that the purpose of reducing wind noise is better achieved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (24)

1. A blower assembly for cleaning a base station, the blower assembly comprising:

an air inlet part and at least one air outlet part;

noise reducer, noise reducer detachably locates in the air-out portion, noise reducer includes: the device comprises a first air pipe and a second air pipe, wherein the axis of the first air pipe and the axis of the second air pipe are not collinear.

2. The fan assembly of claim 1 wherein the axis of the first air duct and the axis of the second air duct are parallel to each other.

3. The fan assembly of claim 1 wherein the first air duct and the second air duct are completely staggered.

4. The fan assembly of claim 1, wherein the first air duct is disposed on an outer side of the air outlet portion, the second air duct is disposed on an inner side of the air outlet portion, a length dimension of the first air duct is L1, a length dimension of the second air duct is L2, a length dimension of the noise reducer is L, and a relationship between L and L1 is satisfied: l1 is more than 0.2L and less than 0.3L; and/or the number of the groups of groups,

the relation between L and L2 is satisfied: 0.4L < L2 < 0.6L.

5. The fan assembly of claim 1 wherein the cross-sectional area of the first air duct is S1, the cross-sectional area of the second air duct is S2, the cross-sectional area of the noise reducer is S, and the relationship between S, S1, and S2 is satisfied: (S1+S2) > 1/9S.

6. The fan assembly of claim 1 wherein the ratio of the length dimension of the first air duct to the length dimension of the second air duct is a, the a satisfying the relationship: a is more than 0.4 and less than 0.6.

7. The fan assembly of claim 1 wherein the noise reducer comprises a first noise reducer comprising the first air duct and a second noise reducer comprising the second air duct.

8. The fan assembly of claim 7, wherein the first noise reducing body further comprises a first noise reducing shell and a first sound absorbing member, the first air duct being provided in the first noise reducing shell, the first sound absorbing member being filled in a space of the first noise reducing shell other than the first air duct; and/or the number of the groups of groups,

the second noise reduction body further comprises a second noise reduction shell and a second noise absorption piece, the second air pipe is arranged in the second noise reduction shell, and the second noise absorption piece is filled in a space of the second noise reduction shell except the second air pipe.

9. The fan assembly of claim 7, wherein the first noise reduction body and the second noise reduction body are engaged with each other, the first noise reduction body is provided with a first clamping portion, the second noise reduction body is provided with a second clamping portion, and the first clamping portion and the second clamping portion are engaged with each other.

10. The fan assembly of claim 1 wherein the fan assembly includes a fan and the air outlet is two and includes: the first air outlet part and the second air outlet part; wherein,

the first air outlet part is arranged on one side close to the fan, air flow passes through the fan and is discharged from the first air outlet part after entering the fan assembly, the second air outlet part is arranged on one side close to the air inlet part, and air flow enters the fan assembly from the air inlet part and is discharged from the second air outlet part.

11. The fan assembly of claim 10 wherein the first air outlet has an extension length that is greater than an extension length of the second air outlet.

12. The fan assembly of claim 10, wherein the noise reducer is disposed within the first air outlet.

13. A fan assembly, the fan assembly comprising:

the air inlet part, the first air outlet part, the second air outlet part, the turbine fan blade and the fan;

the fan assembly is provided with a first airflow path and a second airflow path, airflow in the first airflow path flows through the fan, enters the fan assembly and then is discharged from the first air outlet portion, and airflow in the second airflow path enters the fan assembly from the air inlet portion and then is discharged from the second air outlet portion.

14. The fan assembly of claim 13, wherein the first air outlet is provided with a noise reducer, the noise reducer comprising a first air tube and a second air tube, the axes of the first air tube and the second air tube being non-collinear.

15. The blower assembly of claim 14, wherein an axis of the first air duct and an axis of the second air duct are parallel to each other.

16. The fan assembly of claim 14 wherein the first air duct and the second air duct are completely staggered.

17. The fan assembly of claim 14, wherein the first air duct is disposed on an outer side of the first air outlet portion, the second air duct is disposed on an inner side of the first air outlet portion, a length dimension of the first air duct is L1, a length dimension of the second air duct is L2, a length dimension of the noise reducer is L, and a relationship between L and L1 is satisfied: l1 is more than 0.2L and less than 0.3L; and/or the number of the groups of groups,

the relation between L and L2 is satisfied: 0.4L < L2 < 0.6L.

18. The fan assembly of claim 14 wherein the cross-sectional area of the first air duct is S1, the cross-sectional area of the second air duct is S2, the cross-sectional area of the noise reducer is S, and the relationship between S, S1, and S2 is satisfied: (S1+S2) > 1/9S.

19. The fan assembly of claim 14 wherein the ratio of the length dimension of the first air duct to the length dimension of the second air duct is a, the a satisfying the relationship: a is more than 0.4 and less than 0.6.

20. The fan assembly of claim 14 wherein the noise reducer comprises a first noise reducer comprising the first air duct and a second noise reducer comprising the second air duct.

21. The fan assembly of claim 20, wherein the first noise reducing body further comprises a first noise reducing shell and a first sound absorbing member, the first air duct being disposed within the first noise reducing shell, the first sound absorbing member being filled in a space of the first noise reducing shell other than the first air duct; and/or the number of the groups of groups,

the second noise reduction body further comprises a second noise reduction shell and a second noise absorption piece, the second air pipe is arranged in the second noise reduction shell, and the second noise absorption piece is filled in a space of the second noise reduction shell except the second air pipe.

22. The fan assembly of claim 20, wherein the first noise reduction body and the second noise reduction body are engaged with each other, the first noise reduction body is provided with a first clamping portion, the second noise reduction body is provided with a second clamping portion, and the first clamping portion and the second clamping portion are engaged with each other.

23. The fan assembly of claim 13 wherein the first air outlet has an extension length that is greater than an extension length of the second air outlet.

24. A cleaning base station, comprising:

a water tank having a suction port;

the blower assembly of any one of claims 1-23, wherein a suction duct is connected between the air inlet and the suction port to enable air flow within the water tank to be drawn into the blower assembly and exhausted through at least one of the air outlets when the blower assembly is in operation.