CN110575095A - Silencer assembly and dust collector - Google Patents
Silencer assembly and dust collector Download PDFInfo
- Publication number
- CN110575095A CN110575095A CN201910950892.4A CN201910950892A CN110575095A CN 110575095 A CN110575095 A CN 110575095A CN 201910950892 A CN201910950892 A CN 201910950892A CN 110575095 A CN110575095 A CN 110575095A
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- CN
- China
- Prior art keywords
- sound
- silencing
- deadening
- chamber
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000428 dust Substances 0.000 title abstract description 12
- 230000003584 silencer Effects 0.000 title abstract description 11
- 230000030279 gene silencing Effects 0.000 claims abstract description 40
- 239000011358 absorbing material Substances 0.000 claims description 13
- 238000005192 partition Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008030 elimination Effects 0.000 description 4
- 238000003379 elimination reaction Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to a dust collector and a silencer component, wherein the silencer component comprises: the shell is provided with an air inlet and an air outlet which are communicated with each other; an accommodating cavity and a silencing cavity are formed in the shell and positioned between the air inlet and the air outlet, the accommodating cavity is communicated with the air inlet, the silencing cavity is communicated between the accommodating cavity and the air outlet and positioned on a flow path of air flow flowing out of the accommodating cavity to the air outlet; the silencing plate is arranged in the silencing cavity and divides the silencing cavity into at least two silencing channels; at least part of the channel wall extending along the gas flow direction in each silencing channel is a non-flat surface. The holding chamber is used for assembling the motor, and the motor during operation drives the air current to flow out from the gas outlet after passing through the holding chamber and the amortization passageway by the air inlet. Meanwhile, when the airflow flows through the accommodating cavity and enters the silencing passage, sound waves in the silencing passage collide and reflect with the non-flat surface repeatedly, so that sound energy is dissipated, the sound energy discharged out of the silencing cavity is reduced, and the noise of the motor is reduced.
Description
Technical Field
The invention relates to the technical field of dust collection, in particular to a silencer component and a dust collector.
Background
along with the continuous development of social economy, various household dust collectors and the like become more and more popular, and the motor 200 is used as one of important parts of the dust collector, and the technology is also continuously and iteratively upgraded. In recent years, motors with higher rotating speed, higher power and stronger suction force are continuously present in our visual field, and meanwhile, the problem of motor noise is difficult to solve, and the noise of the high-speed motor of the dust collector often brings auditory discomfort to users.
Disclosure of Invention
Accordingly, there is a need for a muffler assembly that reduces noise in a motor of a vacuum cleaner.
a muffler assembly comprising:
The shell is provided with an air inlet and an air outlet which are communicated with each other; an accommodating cavity and a silencing cavity are formed in the shell and positioned between the air inlet and the air outlet, the accommodating cavity is communicated with the air inlet, the silencing cavity is communicated between the accommodating cavity and the air outlet and positioned on a flow path of airflow flowing out from the accommodating cavity to the air outlet;
The silencing plate is arranged in the silencing cavity and divides the silencing cavity into at least two silencing channels; at least part of the channel wall extending along the gas flow direction in each silencing channel is a non-flat surface.
In the silencer component, the accommodating cavity is used for assembling the motor, and when the motor works, the motor drives airflow to flow out of the air outlet after the airflow passes through the accommodating cavity and the silencing channel from the air inlet. Meanwhile, the silencing plate is arranged in the silencing cavity and divides the silencing cavity into at least two silencing channels, and at least part of the channel wall extending along the airflow direction in each silencing channel is a non-flat surface. When the airflow flows through the accommodating cavity and enters the silencing passage, sound waves in the silencing passage collide and reflect with the non-flat surface repeatedly, so that sound energy is dissipated, the sound energy discharged out of the silencing cavity is reduced, and the noise of the motor is reduced.
In one embodiment, each of the sound-deadening plates includes an upper surface and a lower surface facing two adjacent sound-deadening passages, and at least one of the upper surface and the lower surface is a non-flat surface.
In one embodiment, the sound-absorbing plates comprise at least two sound-absorbing plates, the at least two sound-absorbing plates are arranged at intervals along the direction intersecting with the airflow direction, and all the sound-absorbing plates are arranged in a bent mode towards the same direction.
In one embodiment, each of the sound-absorbing plates comprises a first plate section and a second plate section which are distributed in the direction of the air inlet pointing to the air outlet, and one end of the first plate section is connected with one end of the second plate section in an obtuse-angle intersecting mode.
In one embodiment, the other end of the first plate section and the second plate section which are separately arranged define an opening, and the openings of all the sound-absorbing plates are in the same orientation.
In one embodiment, the included angle between the first plate segment and the second plate segment is in a range of 160 ° to 170 °.
In one embodiment, the noise reduction device further comprises a sound insulation piece, the sound insulation piece is sleeved in the accommodating cavity and is hollow to form a motor channel for assembling a motor, and the motor channel is communicated between the air inlet and the noise reduction cavity.
In one embodiment, the sound-absorbing material is arranged in the sound-deadening cavity.
In one embodiment, the sound absorbing cavity is formed in the sound absorbing cavity and is independent from the sound absorbing channel, the sound absorbing material is contained in the sound absorbing cavity, and a through hole for communicating the sound absorbing cavity with the sound absorbing channel is formed in the cavity wall of the sound absorbing cavity.
In one embodiment, the silencer component comprises a baffle, the baffle and the wall of the silencing cavity define the sound absorbing cavity, and the baffle is provided with a through hole for communicating the sound absorbing cavity and the silencing channel.
The invention also provides a dust collector which comprises a motor and the silencer component, wherein the motor is assembled in the accommodating cavity of the silencer component.
Drawings
FIG. 1 is a block diagram of a muffler assembly according to one embodiment of the present invention;
FIG. 2 is an exploded schematic view of the muffler assembly shown in FIG. 1;
FIG. 3 is a cross-sectional view of the muffler assembly of FIG. 1 in one direction;
FIG. 4 is a cross-sectional view of the muffler assembly of FIG. 1 taken in another direction.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
it will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 3, in an embodiment of the present invention, a muffler assembly 100 is provided, in which a motor 200 of a vacuum cleaner is assembled in the muffler assembly 100 to reduce noise of the motor 200 of the vacuum cleaner.
The muffler assembly 100 includes a housing 10 and a muffler plate 30, the housing 10 is provided with an air inlet 12 and an air outlet 14 which are communicated with each other, a receiving chamber 11 and a muffler chamber 13 which are located between the air inlet 12 and the air outlet 14 are formed in the housing 10, the receiving chamber 11 is communicated with the air inlet 12, the muffler chamber 13 is communicated between the receiving chamber 11 and the air outlet 14, and is located on a flow path of an air flow which flows out from the receiving chamber 11 to the air outlet 14. The accommodating cavity 11 is used for assembling the motor 200, and when the motor 200 works, airflow is driven to flow out of the air outlet 14 after passing through the accommodating cavity 11 and the silencing passage 13 through the air inlet 12.
Meanwhile, the sound-deadening plate 30 is provided in the sound-deadening chamber 13 and partitions the sound-deadening chamber 13 to form at least two sound-deadening passages 131, and at least a part of a passage wall extending in the gas flow direction in each sound-deadening passage 131 is a non-flat surface. The non-flat surface may be a bending surface bending relative to the airflow direction, or a bending surface bending relative to the airflow direction. When the airflow flows through the accommodating cavity 11 and enters the silencing passage 131, the sound waves in the silencing passage 131 collide and reflect with the uneven surface repeatedly, so that the sound energy is dissipated, and finally the sound energy discharged out of the silencing cavity 13 is reduced, and the noise of the motor 200 is reduced.
That is to say, the opposite ends of the sound-absorbing plate 30 in the direction from the air inlet 12 to the air outlet 14 respectively face the accommodating cavity 11 and the air outlet 14, the air flow flowing out of the accommodating cavity 11 flows from one end of the sound-absorbing plate 30 to the other end and flows out of the air outlet 14, and meanwhile, the sound energy is lost by impacting the bent sound-absorbing plate 30 for many times in the flowing process, so that the noise is reduced.
Further, the sound-deadening plate 30 is attached to the inner wall of the sound-deadening channel 13 so as to extend in the direction intersecting the direction in which the air inlet 12 is directed toward the air outlet 14, so that the sound-deadening plate 30 is fixed in the sound-deadening channel 13.
In the drawing shown in fig. 1, the direction in which the air inlet 12 is directed toward the air outlet 14 is the X direction, and the direction intersecting the direction in which the air inlet 12 is directed toward the air outlet 14 is the Y direction.
Specifically, each sound-deadening plate 30 includes an upper surface and a lower surface facing two adjacent sound-deadening channels 131, and at least one of the upper surface and the lower surface is a non-flat surface, so that the upper surface or the lower surface of the sound-deadening plate 30 is set as a non-flat surface as an inner wall of the sound-deadening channel 131, and sound waves in the sound-deadening channel 131 are dissipated after multiple collision reflections on the corresponding upper surface or upper surface, thereby reducing noise generated by the motor 200. It is understood that the inner wall of the sound-deadening chamber 13 may be configured as a non-flat surface, which is not limited herein.
In some embodiments, the sound-absorbing plates 30 include at least two sound-absorbing plates 30, at least two sound-absorbing plates 30 are spaced apart in a direction intersecting the direction of the airflow, and all sound-absorbing plates 30 are arranged to be bent in the same direction. On one hand, a plurality of silencing passages 131 are formed by separating at least two silencing plates 30, sound waves are simultaneously lost through the plurality of silencing passages 131, and the noise reduction effect is improved. On the other hand, all the sound attenuation plates 30 are arranged in a bending mode in the same direction, a plurality of sound attenuation channels 131 formed by at least two sound attenuation plates 30 in a separating mode are provided with cavity walls bent in the same direction, sound waves in each sound attenuation channel 131 are reflected by the cavity walls bent in the same direction, and sound wave disorder can be prevented.
Specifically, the sound-absorbing plate 30 includes a first plate section 32 and a second plate section 34 distributed in the direction from the air inlet 12 to the air outlet 14, one end of the first plate section 32 is connected to one end of the second plate section 34 in an obtuse-angle intersecting manner, so as to form the sound-absorbing plate 30 which is bent in the direction from the air inlet 12 to the air outlet 14, and the sound waves in the sound-absorbing cavity 13 are reflected repeatedly for multiple times to dissipate sound energy. Moreover, the included angle between the first plate section 32 and the second plate section 34 is large, the airflow can smoothly flow from the first plate section 32 to the second plate section 34, the noise elimination plate 30 has small obstruction to the airflow, the noise elimination is realized through the noise elimination plate 30, the flowing resistance of the airflow is considered, and the noise elimination plate 30 is prevented from generating overlarge flowing resistance to the airflow.
Furthermore, the other end of the first plate section 32, which is separated from the second plate section 34, defines an opening, and the openings of all the muffling plates are oriented in the same direction, so that the muffling plates 30 are bent in the same direction, and the sound waves in each muffling channel 131 are reflected by the chamber walls bent in the same direction, thereby preventing the sound waves from being disturbed.
Optionally, the included angle between the first plate section 32 and the second plate section 34 is in the range of 160 ° to 170 °, so that the air flow transitions more smoothly between the first plate section 32 and the second plate section 34, and the muffling plate 30 prevents the air flow from being obstructed to the air outlet 14 when the included angle between the first plate section 32 and the second plate section 34 is smaller.
The muffler assembly 100 further includes a sound-proof member 50, wherein the sound-proof member 50 is sleeved in the accommodating cavity 11 and is hollow to form a motor passage for assembling the motor 200. When the motor 200 is assembled in the accommodating chamber 11 together with the soundproof member 50, the motor 200 is fixed by the soundproof member 50, and a part of noise generated from the motor 200 is isolated by the soundproof member 50. Moreover, the motor channel is communicated between the air inlet 12 and the silencing channel 13, when the motor 200 sleeved in the motor channel works, the air flow can be driven to flow from the air inlet 12 to the silencing channel 13, and the sound insulation piece 50 does not influence the normal work of the motor 200.
Alternatively, the soundproof member 50 is made of rubber or cotton-like fabric, which may block sound transmission.
The muffler assembly 100 further includes a sound absorbing material 70, and the sound absorbing material 70 is disposed in the sound-absorbing cavity 13 and can absorb sound waves in the sound-absorbing cavity 13, so as to further reduce noise transmitted from the motor 200 to the outside. Alternatively, the sound absorbing material 70 is felt, glass wool, or the like.
Further, a sound absorbing cavity 60 independent of the sound absorbing channel 131 is formed in the sound absorbing cavity 13, the sound absorbing material 70 is accommodated in the sound absorbing cavity 60, and a through hole 32 communicating the sound absorbing cavity 60 with the sound absorbing channel 131 is formed in the cavity wall of the sound absorbing cavity 60. The sound absorption material 70 is arranged in the circumferential direction of the inner wall of the sound absorption cavity 13, and the sound absorption cavity 60 accommodates the sound absorption material, so that the sound absorption material 70 is prevented from being directly exposed in the sound absorption cavity 13, the sound absorption material 70 is prevented from being damaged by high-speed flowing air flow, and the sound absorption material 70 is accommodated and protected by the sound absorption cavity 60. Meanwhile, the sound absorbing chamber 60 communicates with the sound deadening channel 131, and the noise propagated in the sound deadening channel 131 can enter the sound absorbing material 70 in the sound absorbing chamber 60 and be absorbed.
Specifically, the muffler assembly 100 includes a baffle 80, a sound absorbing chamber 60 is defined between the baffle 80 and the wall of the sound attenuating chamber 13, and a through hole 82 (shown in fig. 4) is formed in the baffle 80 to communicate the sound absorbing chamber 60 with the sound attenuating passage 13. Also, the sound absorbing chamber 60 has an opening toward the air outlet 14, and the sound absorbing material 70 may be inserted into the sound absorbing chamber 60 through the opening of the sound absorbing chamber 60 toward the air outlet 14, and the sound absorbing material 70 is protected by the baffle 80. At the same time, the sound waves are allowed to be transmitted from the sound deadening channel 13 to the sound absorbing material 70 through the through holes 82 in the baffle 80 and absorbed. Optionally, the through-hole 82 is no larger than 3mm in diameter.
In one embodiment of the invention, the invention further provides a dust collector. The dust collector comprises a motor 200 and the silencer assembly 100, wherein the motor 200 is assembled in the accommodating cavity 11 of the silencer assembly 100, noise generated when the motor 200 works is reduced, noise transmitted to the outside by the motor 200 is reduced, and the noise of the motor 200 of the dust collector is prevented from causing auditory discomfort to a user.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A muffler assembly, comprising:
a shell (10) which is provided with an air inlet (12) and an air outlet (14) which are communicated with each other; an accommodating cavity (11) and a silencing cavity (13) are formed in the shell (10) and located between the air inlet (12) and the air outlet (14), the accommodating cavity (11) is communicated with the air inlet (12), the silencing cavity (13) is communicated between the accommodating cavity (11) and the air outlet (14) and located on a flow path of airflow flowing out from the accommodating cavity (11) to the air outlet (14);
A sound-deadening plate (30) which is provided in the sound-deadening chamber (13) and partitions the sound-deadening chamber (13) to form at least two sound-deadening passages (131); at least part of the channel wall extending along the gas flow direction in each silencing channel (131) is a non-flat surface.
2. A muffler assembly as claimed in claim 1, wherein each of the sound-deadening plates (30) comprises an upper surface and a lower surface facing two adjacent ones of the sound-deadening passages (131), at least one of the upper surface and the lower surface being a non-flat surface.
3. The muffler assembly of claim 1 wherein said sound attenuating plate (30) comprises at least two pieces, at least two pieces of said sound attenuating plate (30) being spaced apart in a direction intersecting the direction of the air flow, and all of said sound attenuating plates (30) being arranged to be bent in the same direction.
4. A muffler assembly according to any one of claims 1-3, characterized in that each of said sound-absorbing plates (30) comprises a first plate section (32) and a second plate section (34) distributed in the direction in which said inlet (12) is directed towards said outlet (14), one end of said first plate section (32) being connected to one end of said second plate section (34) at an obtuse angle.
5. a muffler assembly as claimed in claim 4, wherein the other end of the first (32) and second (34) segments, which is spaced apart, defines an opening, the openings of all of the panels being oriented in the same direction.
6. The muffler assembly of claim 5 wherein the included angle between the first plate segment (32) and the second plate segment (34) is in the range of 160-170 °.
7. A muffler assembly as claimed in any one of claims 1 to 3, further comprising a sound-insulating member (50), wherein the sound-insulating member (50) is sleeved in the accommodating chamber (11) and is hollow to form a motor passage for assembling a motor (200), and the motor passage is communicated between the air inlet (12) and the sound-deadening chamber (13).
8. A muffler assembly as claimed in any one of claims 1 to 3 further comprising a sound absorbing material (70), the sound absorbing material (70) being disposed within the sound-deadening chamber (13).
9. The muffler assembly as claimed in claim 8, wherein the sound-deadening chamber (13) is formed with a sound-absorbing chamber (60) independent of the sound-deadening channel (131), the sound-absorbing material (70) is accommodated in the sound-absorbing chamber (60), and a through hole (82) communicating the sound-absorbing chamber (60) with the sound-deadening channel (131) is opened in a wall of the sound-absorbing chamber (60).
10. the muffler assembly of claim 9 wherein the muffler assembly (100) includes a baffle (80), the baffle (80) and the wall of the sound-absorbing chamber (13) defining the sound-absorbing chamber (60), the baffle (80) having the through-hole (82) formed therein.
11. a vacuum cleaner, characterized in that it comprises a motor (200) and a muffler assembly (100) as claimed in any one of claims 1 to 9, said motor (200) being fitted in said housing chamber (11) of said muffler assembly (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910950892.4A CN110575095A (en) | 2019-10-08 | 2019-10-08 | Silencer assembly and dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910950892.4A CN110575095A (en) | 2019-10-08 | 2019-10-08 | Silencer assembly and dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110575095A true CN110575095A (en) | 2019-12-17 |
Family
ID=68814379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910950892.4A Pending CN110575095A (en) | 2019-10-08 | 2019-10-08 | Silencer assembly and dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110575095A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112401739A (en) * | 2020-10-31 | 2021-02-26 | 嘉兴捷翔洁具制品有限公司 | Negative pressure adsorption system for dust collector |
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|---|---|---|---|---|
| CN1630482A (en) * | 2002-02-11 | 2005-06-22 | 戴森技术有限公司 | Exhaust assembly |
| JP2009045317A (en) * | 2007-08-22 | 2009-03-05 | Mitsubishi Electric Corp | Vacuum cleaner |
| CN201529085U (en) * | 2009-10-23 | 2010-07-21 | 杭州春兰电器实业有限公司 | Silencing device for vacuum dust collector |
| CN103705176A (en) * | 2012-10-09 | 2014-04-09 | 皇家飞利浦有限公司 | Exhaust grille |
| CN206214016U (en) * | 2016-08-29 | 2017-06-06 | 江苏美的清洁电器股份有限公司 | The ground brush assemblies and the dust catcher with it of dust catcher |
| CN206745311U (en) * | 2016-12-13 | 2017-12-15 | 江苏美的清洁电器股份有限公司 | The ducting assembly of floor brush of dust collector and there is its floor brush of dust collector, dust catcher |
| CN108354510A (en) * | 2018-05-21 | 2018-08-03 | 江苏美的清洁电器股份有限公司 | Fan assembly and dust catcher |
| CN211066399U (en) * | 2019-10-08 | 2020-07-24 | 珠海格力电器股份有限公司 | Silencer assembly and dust collector |
-
2019
- 2019-10-08 CN CN201910950892.4A patent/CN110575095A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1630482A (en) * | 2002-02-11 | 2005-06-22 | 戴森技术有限公司 | Exhaust assembly |
| JP2009045317A (en) * | 2007-08-22 | 2009-03-05 | Mitsubishi Electric Corp | Vacuum cleaner |
| CN201529085U (en) * | 2009-10-23 | 2010-07-21 | 杭州春兰电器实业有限公司 | Silencing device for vacuum dust collector |
| CN103705176A (en) * | 2012-10-09 | 2014-04-09 | 皇家飞利浦有限公司 | Exhaust grille |
| CN206214016U (en) * | 2016-08-29 | 2017-06-06 | 江苏美的清洁电器股份有限公司 | The ground brush assemblies and the dust catcher with it of dust catcher |
| CN206745311U (en) * | 2016-12-13 | 2017-12-15 | 江苏美的清洁电器股份有限公司 | The ducting assembly of floor brush of dust collector and there is its floor brush of dust collector, dust catcher |
| CN108354510A (en) * | 2018-05-21 | 2018-08-03 | 江苏美的清洁电器股份有限公司 | Fan assembly and dust catcher |
| CN211066399U (en) * | 2019-10-08 | 2020-07-24 | 珠海格力电器股份有限公司 | Silencer assembly and dust collector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112401739A (en) * | 2020-10-31 | 2021-02-26 | 嘉兴捷翔洁具制品有限公司 | Negative pressure adsorption system for dust collector |
| CN112401739B (en) * | 2020-10-31 | 2022-07-05 | 嘉兴捷翔洁具制品有限公司 | Negative pressure adsorption system for dust collector |
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