CN220354079U - Fan structure for cleaning machine and cleaning machine - Google Patents
Fan structure for cleaning machine and cleaning machine Download PDFInfo
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- CN220354079U CN220354079U CN202321956513.0U CN202321956513U CN220354079U CN 220354079 U CN220354079 U CN 220354079U CN 202321956513 U CN202321956513 U CN 202321956513U CN 220354079 U CN220354079 U CN 220354079U
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- air outlet
- fan
- annular chamber
- cavity
- air
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- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 238000011144 upstream manufacturing Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000005201 scrubbing Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
The utility model relates to a fan structure for a cleaning machine and the cleaning machine, the fan structure for the cleaning machine comprises a shell, a housing and a fan, an annular chamber surrounding the outer periphery of the housing is arranged in a cavity, an air outlet hole is communicated with an air exhaust hole through the annular chamber, and a spoiler capable of rotating and flowing air flow is arranged in the annular chamber. The airflow enters the annular chamber, so that the airflow flowing path is prolonged, noise is reduced, and after the airflow is disturbed by the turbulence piece, the blade frequency peak noise is well inhibited, and a good noise reduction effect is achieved.
Description
Technical Field
The utility model relates to a fan structure for a cleaning machine, in particular to a fan with a noise reduction function and the cleaning machine with the fan.
Background
The fan is an important air supply device, is commonly applied to products such as a range hood, an air conditioner, a cleaning machine and the like, and generally comprises a volute, a movable blade, a stationary blade and a motor, wherein the movable blade is arranged on the volute, the motor is used for driving the movable blade to rotate, and noise can be generated due to the existence of the motor.
The present cleaner is as in chinese utility model patent "a handheld cleaner", its patent No. ZL202022852924.8 (issued to the public No. CN 214595698U) discloses a handheld cleaner, including a dust cup, a motor for providing suction, a motor housing provided outside the motor, an air inlet filter structure, an air outlet filter structure, the motor housing includes: the dust cup comprises a motor shell air inlet part and a motor shell air outlet part, wherein the motor shell is arranged on the upper part of the dust cup, the air inlet filter screen structure surrounds the motor shell air inlet part, and the air outlet filter screen structure surrounds the motor shell air outlet part or is positioned on one side of the motor shell air outlet part. In the above patent, the motor housing is provided with a noise reduction hole, and although a certain noise reduction effect is obtained, there is usually a blade frequency peak noise, which affects the user experience.
Accordingly, there is a need for further improvements to existing blower configurations.
Disclosure of Invention
The first technical problem to be solved by the present utility model is to provide a fan structure for a cleaning machine for suppressing peak noise of blade frequency, aiming at the state of the art.
The second technical problem to be solved by the utility model is to provide a cleaning machine with the fan structure.
The technical scheme adopted by the utility model for solving the first technical problem is as follows: a fan structure for a cleaning machine, comprising:
a housing having a cavity therein, and having an exhaust hole communicating with the cavity;
the housing is positioned in the cavity, a containing cavity is formed in the housing, and air outlet holes communicated with the containing cavity are distributed on the peripheral wall of the housing;
the fan is positioned in the containing cavity and is provided with an air inlet and an air outlet, and the air outlet is positioned at the upstream of the air outlet along the fluid flow path;
the method is characterized in that: the cavity is internally provided with an annular chamber encircling the outer periphery of the housing, the air outlet hole is communicated with the air outlet hole through the annular chamber, and a spoiler capable of rotating and flowing air flow is arranged in the annular chamber.
The turbulence member may take various forms, such as a cylindrical member or an arc member, but preferably, the turbulence member is a cylindrical member disposed on an inner peripheral wall of the annular chamber, and a plurality of cylindrical members are disposed at intervals along a circumferential direction of the annular chamber.
Preferably, the shell and the column member are vertically arranged, and the column member and the bottom wall of the shell are correspondingly provided with screw holes for installing screws therein. Therefore, the cylindrical member can be used as a spoiler member and a connecting member for connecting the housing and the shell.
In order to further consume the acoustic energy, noise reduction pieces with wavy cross sections are arranged in the annular chamber, and the noise reduction pieces are arranged on the peripheral wall of the annular chamber and are arranged at intervals opposite to the cylindrical pieces.
In order to improve the noise reduction capability, at least two noise reduction pieces are arranged at intervals along the circumferential direction of the annular chamber.
The noise reduction member may be formed in various forms, either in the form of a corrugated plate or in other forms, but preferably, the noise reduction member is formed of a plurality of protrusions connected in sequence along the circumferential direction of the annular chamber, the protrusions extending inward.
In order to extend the flow path of the air flow to achieve further noise reduction, the annular chamber has upper and lower wall plates spaced up and down, with lower vent holes being distributed on the lower wall plate, and upper vent holes being distributed on the upper wall plate, the upper vent holes being located between and upstream of the lower vent holes along the fluid flow path.
In order to reduce broadband noise, an annular cavity surrounding the periphery of the fan is arranged in the housing, air passing holes communicated with the annular cavity are distributed on the inner annular wall of the annular cavity, the air outlet holes are positioned below the air passing holes and communicated with the air passing holes through the annular cavity, and an air outlet of the fan is positioned at the upstream of the air passing holes and the upstream of the air outlet holes along a fluid flow path.
Preferably, the air outlet is arranged at the top of the fan, and the air outlet is positioned above the air outlet.
In order to suppress sound waves of different frequencies, the pore diameters of the air passing holes are different.
The utility model solves the second technical problem by adopting the technical proposal that: the utility model provides a cleaning machine, is including fan structure and scrubbing brush structure, along the fluid flow path, the air outlet of scrubbing brush structure is located the air intake of fan structure's air intake its characterized in that: the fan structure is the fan structure of any of claims to.
The floor brush structure may be located at the front side of the fan structure or below the fan structure, but preferably, the floor brush structure is located below the fan structure, and the air inlet is located at the bottom of the fan structure.
The cleaning machine may be a floor washer or a vacuum cleaner, but preferably the cleaning machine is a floor washer.
Compared with the prior art, the utility model has the advantages that: in the fan structure of the cleaning machine, the annular chamber surrounding the outer peripheral side of the housing is arranged in the cavity of the housing, the air outlet hole is communicated with the air outlet hole through the annular chamber, the turbulence piece which can rotate and flow the air flow is arranged in the annular chamber, the air flow enters the annular chamber, the air flow path is prolonged, the noise is reduced, and after the turbulence piece turbulence the air flow, the turbulence piece has a good inhibition effect on the blade frequency peak noise, and a good noise reduction effect is achieved.
Drawings
Fig. 1 is a sectional view of a part of the construction of the floor scrubber of the present embodiment;
fig. 2 is a sectional view of the structure of the blower in the present embodiment;
fig. 3 is a cross-sectional view of another angle of the blower structure in this embodiment.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 3, the cleaning machine of the present embodiment is a floor washer. The floor scrubber comprises a fan structure and a floor brush structure, wherein the floor brush structure is positioned below the fan structure, and an air outlet of the floor brush structure is positioned at the upstream of an air inlet 31 of the fan structure along the fluid flow path.
As shown in fig. 2 and 3, the fan structure of the present embodiment includes a casing 1, a housing 2, and a fan 3. Wherein the housing 1 is vertically arranged and the interior of the housing 1 has a cavity 10, the housing 1 having an exhaust vent in communication with the cavity 10.
As shown in fig. 1 and 2, the housing 2 is located in the cavity 10, the housing 2 has a cavity 20 therein, and air outlet holes 201 communicating with the cavity 20 are distributed on the peripheral wall of the housing 2. The fan 3 is located in the cavity 20, and has an air inlet 31 and an air outlet 32, in this embodiment, the air inlet 31 is located at the bottom of the fan 3, the air outlet 32 is located at the upper portion of the fan 3, and along the fluid flow path, the air outlet 32 is located upstream of the air outlet 201. In this embodiment, an annular cavity 21 surrounding the periphery of the fan 3 is disposed in the housing 2, air passing holes 211 communicating with the annular cavity 21 are distributed on the inner annular wall of the annular cavity 21, and the air outlet 201 is located below the air passing holes 211 and communicates with the air passing holes 211 through the annular cavity 21. In this embodiment, the pore diameters of the air passing holes 211 are different. The exhaust port 32 is located above the air outlet 201. Along the fluid flow path, the exhaust port 32 of the blower 3 is located upstream of the air passing hole 211, and the air passing hole 211 is located upstream of the air outlet hole 201.
Further, as shown in fig. 2, an annular chamber 11 is provided in the cavity 10 around the outer peripheral side of the housing 2, and the air outlet hole 201 communicates with the air discharge hole through the annular chamber 11. A spoiler capable of rotationally flowing the air flow is provided in the annular chamber 11. In the present embodiment, the spoiler is a plurality of columnar members 4 provided on the inner peripheral wall of the annular chamber 11, and the columnar members 4 are arranged at intervals along the circumferential direction of the annular chamber 11. In addition, the housing 1 and the columnar member 4 are both vertically arranged, and the columnar member 4 is provided with screw holes for mounting screws therein in correspondence with the bottom wall of the housing 1. In this way, screws are inserted through the corresponding cylindrical elements 4 and the bottom wall of the casing 1 to connect the casing 1 and the casing 2.
In the present embodiment, as shown in fig. 2, the annular chamber 11 has an upper wall plate 111 and a lower wall plate 112 arranged at an upper and lower interval, lower vent holes 1121 are distributed on the lower wall plate 112, upper vent holes 1111 are distributed on the upper wall plate 111, and the upper vent holes 1111 are located between the lower vent holes 1121 and the exhaust holes and upstream of the lower vent holes 1121 along the fluid flow path.
As shown in fig. 2 and 3, the annular chamber 11 is provided therein with a noise reduction member 5 having a wavy cross-sectional edge, and the noise reduction member 5 is provided on the outer peripheral wall of the annular chamber 11 and is disposed at a distance from the columnar member 4. At least two noise reduction members 5 are arranged at intervals along the circumferential direction of the annular chamber 11. In this embodiment, there are three noise reduction members 5, and the three noise reduction members 5 have the same structure, and one noise reduction member 5 will be described as an example. As shown in fig. 2, the noise reduction member 5 is formed of a plurality of protrusions 51 connected in sequence along the circumferential direction of the annular chamber 11, and the protrusions 51 extend inward and have a conical shape.
The airflow path in this embodiment is shown in detail in the direction indicated by the hollow arrow in fig. 2. The air flow enters the annular cavity 21 through the air holes 211, then flows downwards and is discharged through the air outlet 201, at the moment, the sound wave capacity is secondarily inhibited, and after the energy is inhibited twice, the sound wave energy beyond the blade frequency is greatly inhibited; subsequently, the discharged air flows upward through the lower vent 1121, the annular chamber 11 and the upper vent 1111 in sequence, and finally is discharged outside the housing, and the turbulence member and the noise reduction member in the annular chamber 11 consume the sound energy, so that the peak noise suppression of the blade frequency has a very good effect, and the whole air flow further prolongs the air flow passage, and reduces the noise.
In the description and claims of the present utility model, terms indicating directions, such as "upper", "lower", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Since the disclosed embodiments of the utility model may be arranged in a variety of orientations, these directional terms are used by way of illustration only and are in no way limiting.
Claims (13)
1. A fan structure for a cleaning machine, comprising:
a housing (1) having a cavity (10) therein, and the housing (1) having an exhaust hole communicating with the cavity (10);
the housing (2) is positioned in the cavity (10), a containing cavity (20) is formed in the housing (2), and air outlet holes (201) communicated with the containing cavity (20) are distributed on the peripheral wall of the housing (2);
a fan (3) located within the cavity (20) and having an air inlet (31) and an air outlet (32), the air outlet (32) being located upstream of the air outlet (201) along a fluid flow path;
the method is characterized in that: an annular chamber (11) encircling the outer periphery side of the housing (2) is arranged in the cavity (10), the air outlet hole (201) is communicated with the air outlet hole through the annular chamber (11), and a spoiler capable of rotating and flowing air flow is arranged in the annular chamber (11).
2. The blower structure of claim 1, wherein: the turbulence piece is a plurality of column-shaped pieces (4) arranged on the inner peripheral wall of the annular chamber (11), and the column-shaped pieces (4) are arranged at intervals along the circumferential direction of the annular chamber (11).
3. The blower structure of claim 2, wherein: the shell (1) and the column-shaped piece (4) are vertically arranged, and the column-shaped piece (4) and the bottom wall of the shell (1) are correspondingly provided with screw holes for installing screws therein.
4. A fan structure as claimed in claim 3, wherein: the annular chamber (11) is internally provided with a noise reduction piece (5) with wavy cross section edges, and the noise reduction piece (5) is arranged on the peripheral wall of the annular chamber (11) and is arranged at intervals opposite to the cylindrical piece (4).
5. The blower structure of claim 4, wherein: at least two noise reduction pieces (5) are arranged at intervals along the circumferential direction of the annular chamber (11).
6. The blower structure of claim 4, wherein: the noise reduction member (5) is formed of a plurality of protrusions (51) connected along Zhou Xiangyi times of the annular chamber (11), the protrusions (51) extending inward.
7. The blower fan structure of any one of claims 1-6, wherein: the annular chamber (11) is provided with an upper wall plate (111) and a lower wall plate (112) which are arranged at intervals up and down, lower vent holes (1121) are distributed on the lower wall plate (112), upper vent holes (1111) are distributed on the upper wall plate (111), and the upper vent holes (1111) are positioned between the lower vent holes (1121) and the vent holes and are positioned at the upstream of the lower vent holes (1121) along a fluid flow path.
8. The blower structure of claim 7, wherein: the fan is characterized in that an annular cavity (21) surrounding the periphery of the fan (3) is arranged in the housing (2), air passing holes (211) communicated with the annular cavity (21) are distributed on the inner annular wall of the annular cavity (21), the air outlet holes (201) are located below the air passing holes (211) and are communicated with the air passing holes (211) through the annular cavity (21), and an air outlet (32) of the fan (3) is located at the upstream of the air passing holes (211) along a fluid flow path, and the air passing holes (211) are located at the upstream of the air outlet holes (201).
9. The blower structure of claim 8, wherein: the air outlet (32) is arranged at the top of the fan (3), and the air outlet (32) is arranged above the air outlet hole (201).
10. The blower structure of claim 8, wherein: the pore diameters of the gas passing holes (211) are different.
11. The utility model provides a cleaning machine, is including fan structure and scrubbing brush structure, along the fluid flow path, the air outlet of scrubbing brush structure is located the air intake (31) of fan structure's upstream, its characterized in that: the fan structure is the fan structure of any one of claims 1 to 10.
12. The cleaning machine of claim 11, wherein: the floor brush structure is located below the fan structure, and the air inlet (31) is located at the bottom of the fan structure.
13. The cleaning machine of claim 12, wherein: the cleaning machine is a floor washing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321956513.0U CN220354079U (en) | 2023-07-24 | 2023-07-24 | Fan structure for cleaning machine and cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321956513.0U CN220354079U (en) | 2023-07-24 | 2023-07-24 | Fan structure for cleaning machine and cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220354079U true CN220354079U (en) | 2024-01-16 |
Family
ID=89478413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321956513.0U Active CN220354079U (en) | 2023-07-24 | 2023-07-24 | Fan structure for cleaning machine and cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220354079U (en) |
-
2023
- 2023-07-24 CN CN202321956513.0U patent/CN220354079U/en active Active
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| GR01 | Patent grant | ||
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