CN102309285A - Silent dust collector - Google Patents
Silent dust collector Download PDFInfo
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- CN102309285A CN102309285A CN201110270489A CN201110270489A CN102309285A CN 102309285 A CN102309285 A CN 102309285A CN 201110270489 A CN201110270489 A CN 201110270489A CN 201110270489 A CN201110270489 A CN 201110270489A CN 102309285 A CN102309285 A CN 102309285A
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Abstract
The invention discloses a silent dust collector, which comprises a shell, an inner cover and a motor component, wherein an air inlet and an air outlet are formed on the shell; the shell wraps the inner cover and the motor component; the inner cover is provided with an accommodating chamber used for accommodating the motor component; a motor air outlet and a motor air inlet which is communicated with the air inlet are formed on the motor component; the inner cover is provided with an expansion anechoic chamber communicated with the air outlet; the direction of the motor air outlet is opposite to the expansion anechoic chamber; the outer wall of the motor component, the side wall of the accommodating chamber and the bottom wall of the shell form two air outlet passages communicated with the motor air outlet and the expansion anechoic chamber in an enclosing way; the two air outlet passages are respectively poisoned on the two sides of the motor air outlet; and on a cross section vertical to the air outlet passages, the expansion anechoic chamber has a first width, the air outlet passages have the second widths, and the first width is larger than the sum of the second widths of the air outlet passages. Through the silent dust collector, noise can be effectively reduced.
Description
Technical field
The present invention relates to a kind of dust catcher, relate in particular to a kind of quiet dust catcher.
Background technology
Usually, dust catcher comprises electric machine assembly, and electric machine assembly has motor air inlet and motor air outlet.This electric machine assembly is used to produce vacuum source; This pull of vacuum is sucked into ground impurity and the ambient air air inlet from dust catcher in the dust collection bag; Air is discharged from the air outlet of dust catcher through the motor air outlet from the motor air inlet of dust collection bag entering electric machine assembly then.Dust catcher in the course of the work, the rotation of motor, air-flow all can produce noise in the process of flowing in dust catcher.In addition, electric machine assembly of the prior art all is a horizontal positioned, and the motor air inlet is aimed at the dirt bag of dust catcher; The air outlet of motor air outlet and dust catcher is relative, and air-flow is directly discharged from the air outlet of dust catcher, like this; The circulation of air path is shorter, and therefore, noise can not effective attenuation; In addition; Because the consumer generally favors the less dust catcher of volume; The size of general dust catcher all is controlled in the high 240mm of the wide 270mm of long 430mm; This has just limited dust catcher inner space in the horizontal, in limited space, becomes research staff's problem demanding prompt solution through prolonging the air flue noise reduction.
Summary of the invention
The problem that the present invention solves is the big problem of dust catcher noise.
For addressing the above problem; The present invention provides a kind of dust catcher; This dust catcher comprises shell, inner cover and electric machine assembly, and described shell is provided with air inlet and air outlet and this shell and wraps up said inner cover and electric machine assembly, and this inner cover has the accommodating chamber that holds said electric machine assembly; The motor air inlet that described electric machine assembly is provided with the motor air outlet and is connected with described air inlet, said inner cover have the expansion anechoic chamber that is communicated with said air outlet; Said motor air outlet towards back to said expansion anechoic chamber; Surround two air-out passages that are communicated with described motor air outlet and expansion anechoic chamber between the diapire of the outer wall of said electric machine assembly, the sidewall of accommodating chamber and shell, two said air-out passages lay respectively at the both sides of said motor air outlet; On the cross section perpendicular to described air-out passage, described expanding chamber has first width, and described air-out passage has second width, and described first width is greater than the second width sum of two said air-out passages;
Perhaps,
Said inner cover also is provided with the expansion anechoic chamber of the said air outlet of connection and the HEPA receiving room between expansion anechoic chamber and accommodating chamber, and this HEPA receiving room is communicated with the expansion anechoic chamber; Said motor air outlet towards back to said expansion anechoic chamber; Surround two air-out passages that are communicated with said motor air outlet and HEPA receiving room between the diapire of the outer wall of said electric machine assembly, the sidewall of accommodating chamber and shell, two described air-out passages lay respectively at the both sides of said motor air outlet; On cross section perpendicular to described air-out passage; This expansion anechoic chamber has first width; Described air-out passage has second width, and said HEPA receiving room has the receiving room width, and the second width sum of two said air-out passages is less than said first width and receiving room width.
Alternatively, the rotating shaft of the motor of said electric machine assembly is vertically placed, said motor air inlet than said motor air outlet further from ground.
Alternatively, said expansion anechoic chamber perpendicular to the size on said first width less than said first width.
Alternatively, described air-out passage extends in the horizontal direction, and extend at vertical direction said expansion anechoic chamber.
Alternatively; Said inner cover is provided with the dirt chamber; This dirt chamber and expansion anechoic chamber are positioned at the relative both sides of accommodating chamber; It is that said motor air inlet is communicated with the air inlet of dust catcher through the dirt chamber that said motor air inlet is communicated with the air inlet of dust catcher, and the air outlet of said dust catcher and motor air inlet are positioned on the straight line.
A kind of quiet dust catcher comprises electric machine assembly and inner cover; Said electric machine assembly has motor air inlet and the motor air outlet that communicates with the air inlet of dust catcher; Described inner cover is provided with the accommodating chamber that holds electric machine assembly, and said dust catcher also is provided with the expansion anechoic chamber of the air outlet that is communicated with dust catcher; Said motor air outlet towards back to said expansion anechoic chamber; Said electric machine assembly is positioned at the accommodating chamber middle part; The outer wall of said electric machine assembly forms two air-out passages that are communicated with said motor air outlet and said expansion anechoic chamber with the sidewall of accommodating chamber and diapire, and two said air-out passages lay respectively at the both sides of said motor air outlet; On the cross section perpendicular to described air-out passage, described expansion anechoic chamber has first width, and described air-out passage has second width, and described first width is greater than the second width sum of two said air-out passages;
Perhaps,
Expansion anechoic chamber that said dust catcher also is provided with and the air outlet of dust catcher is communicated with and the HEPA receiving room between expansion anechoic chamber and accommodating chamber, this HEPA receiving room is communicated with the expansion anechoic chamber; Said motor air outlet towards back to said expansion anechoic chamber; Said electric machine assembly is positioned at the accommodating chamber middle part; The outer wall of said electric machine assembly surrounds two air-out passages that are communicated with said motor air outlet and said expansion anechoic chamber with the sidewall of accommodating chamber, and said air-out passage is positioned at the both sides of said motor air outlet; On cross section perpendicular to described air-out passage; This expansion anechoic chamber has first width; Described air-out passage has second width, and said HEPA receiving room has the receiving room width, and the second width sum of two said air-out passages is less than said first width and receiving room width.
Alternatively, the machine shaft of said electric machine assembly is vertically placed, said motor air inlet than motor air outlet further from ground.
Alternatively, said expansion anechoic chamber perpendicular to the size on said first width less than said first width.
Alternatively, described air-out passage extends in the horizontal direction, and extend at vertical direction said expansion anechoic chamber.
Alternatively; Said inner cover is provided with the dirt chamber; This dirt chamber and expansion anechoic chamber are positioned at the relative both sides of accommodating chamber; It is that said motor air inlet is communicated with the air inlet of dust catcher through the dirt chamber that said motor air inlet is communicated with the air inlet of dust catcher, and the air outlet of said dust catcher and motor air inlet are positioned on the straight line.
Compared with prior art, the invention has the beneficial effects as follows:
1, since the present invention with first width of expansion anechoic chamber greater than the second width sum of the second width sum of air-out passage or two air-out passages less than said first width and receiving room width, so the air that blows out from the motor air outlet can directly get into the expansion anechoic chamber after through the air-out passage; In the dust catcher that the HEPA assembly is set,, be to get into the space of amplifying suddenly from little space through directly getting into the expansion anechoic chamber after the noise reduction of HEPA assembly; So; Noise is little, and, from the air-out passage, behind the overexpansion anechoic chamber, discharge from the air outlet of dust catcher; The air movement path length further reduces noise.
2, the present invention makes electric machine assembly perpendicular to ground through the rotating shaft with the motor of electric machine assembly perpendicular to ground; Like this; For the space that enlarges the expansion anechoic chamber provides prerequisite, it is very big that the expansion anechoic chamber can do on the dust collector structure basis of prior art, and noise can fully expand in the expansion anechoic chamber; So, better reduce noise.
2, motor air outlet of the present invention towards back to said expansion anechoic chamber; So; The air that blows out from the motor air outlet gets into the expansion anechoic chamber perhaps through being got into the expansion anechoic chamber after the noise reduction of HEPA assembly behind the air-out passage through the air-out passage; Prolong the path, reached the purpose that reduces noise.
3, greater than in the horizontal direction length, like this, said expansion anechoic chamber is similar to the space of cuboid in the length of vertical direction in said expansion anechoic chamber, and air can fully expand in the expansion anechoic chamber, like this, is more conducive to reduce noise.
4, the air-out passage of said dust catcher extends in the horizontal direction; Extend at vertical direction said expansion anechoic chamber, and not only prolong the path and reached the purpose that reduces noise, and; The design that vertically extend the expansion anechoic chamber can be so that upwards ejection of air; Can in the expansion anechoic chamber, fully expand, so, noise can be reduced.
5, because said expansion anechoic chamber and dirt chamber are positioned at the relative both sides of accommodating chamber, and air outlet and motor air inlet are positioned on the straight line, like this; The air circle that is equivalent to move at least in dust catcher inside; So the path is longer, reached the purpose that reduces noise.
Description of drawings
Fig. 1 three-dimensional combination figure of the present invention;
Fig. 2 is the structural representation of inner cover of the present invention;
Fig. 3 is the structural representation of another angle of inner cover of the present invention;
Fig. 4 be among Fig. 1 along A-A to cutaway view;
Fig. 5 be among Fig. 1 along B-B to cutaway view.
The specific embodiment
By the technology contents, the structural feature that specify the invention, reached purpose and effect, will combine embodiment and conjunction with figs. to specify below.
See also Fig. 1 and Fig. 2, quiet dust catcher of the present invention comprises shell 1, inner cover 2, electric machine assembly 3, HEPA assembly 4, air intake cover plate 5 and air-out cover plate 6.Said shell 1 has air inlet 11 and air outlet 12.This air outlet 11 can suck through the dust and the impurity that will be in ground with equipment such as dust exhaust apparatus.
See also Fig. 2, Fig. 3 and Fig. 4 and combine Fig. 1, said inner cover 2 is provided with dirt chamber 21, accommodating chamber 22, HEPA receiving room 23 and expansion anechoic chamber 24.Said dirt chamber 21 is communicated with said air inlet 11, and dust or the impurity collected by dust catcher can get into and be stored in the dirt chamber 21 from air inlet 11.Accommodating chamber 22 is surrounded by roof 221, the first side wall 222, second sidewall 223, the 3rd sidewall 224 and the 4th sidewall 225.Roof 221 is provided with air-out cover plate installation portion 2211 and air intake cover plate installation portion 2212.Air intake cover plate installation portion 2212 has conduit 22121, and a bottom portion of this conduit 22121 is provided with the through hole 22122 that runs through this roof 221, and this through hole 22122 is communicated with said accommodating chamber 22, and conduit 22121 other ends are communicated with said dirt chamber 21.HEPA receiving room 23 is arranged between expansion anechoic chamber 24 and the accommodating chamber 22 and with expansion anechoic chamber 24 and is communicated with accommodating chamber 22; Concrete; Said HEPA receiving room 23 has identical the first side wall 222 with accommodating chamber 22, and HEPA receiving room 23 is communicated with through the connected entrance 2221 that is arranged on the first side wall 222 with accommodating chamber 22.Expansion anechoic chamber 24 is by with the common first wall with impenetrating mouth 2,411 241 of HEPA receiving room 23, relative with this first wall 241 second wall 242, relative the 3rd wall 243 and wall 244 and be connected the cavity with second connected entrance 246 that the diapire 245 of the end of this first wall 241, second wall 242, the 3rd wall 243 and wall 244 surrounds.Expansion anechoic chamber 24 is communicated with HEPA receiving room 23 through said impenetrating mouth 2411.
Please continue to consult Fig. 4, said electric machine assembly 3 comprises seat 31, motor 32 and motor soft seat 33 in the motor, and the interior seat 31 of motor is interlocked with motor soft seat 33 and is combined into the motor cover of holding motor 32.Electric machine assembly 3 is provided with motor air inlet 34 and motor air outlet 35, and concrete, motor air inlet 34 is arranged on the top of motor soft seat 33; Motor air outlet 35 is arranged on the interior seat 31 of motor, certainly, is combined into the motor cover of holding motor 32 owing in the motor 31 with motor soft seat 33; So; Also be appreciated that to motor air outlet 34 and motor air outlet 35 are arranged on the motor cover, and the through hole 22122 on the roof 221 of motor air inlet 34 and inner cover 2 is overlapping.Said motor air outlet 35 towards back to said expansion anechoic chamber 24.The rotating shaft of the motor 32 of said electric machine assembly 3 is vertically placed, so, said motor air inlet 34 than motor air outlet 35 further from ground.
See also Fig. 4, said HEPA assembly 4 is existing parts, comprises support 41 and end cap 42 with HEPA paper.Said support 41 inserts said HEPA receiving room 23, and said end cap 42 plug racks 41 are in HEPA receiving room 23.
See also Fig. 4 and combine Fig. 2 and Fig. 3; Said air intake cover plate 5 is placed in the air intake cover plate installation portion 2212 of roof 221 and constitutes the air intake passage that is communicated with dirt chamber 21 and through hole 22122 and motor air inlet 34 with conduit 22121; Because motor air inlet 34 is overlapping with through hole 22122; So motor air inlet 34 is communicated with air inlet 11 through through hole 22122, air intake passage and dirt chamber 21.Said air-out cover plate 6 is arranged at the air-out cover plate installation portion 2211 of roof 221 and forms the passage 61 that is communicated with second connected entrance 246 and air outlet 12, and like this, said expansion anechoic chamber 24 just is communicated with air outlet 12 through this passage 61.Said air outlet 12 is positioned on the straight line with motor air inlet 34.
See also Fig. 4 and Fig. 5; Surround two air-out passages 7 that are communicated with said motor air outlets 35 and HEPA receiving room 23 between the diapire of sidewall of the outer wall of said electric machine assembly 4, accommodating chamber 22 (the first side wall 222, second sidewall 223, the 3rd sidewall 224 and the 4th sidewall 225) and shell 1, these two air-out passages 7 are positioned at the both sides of said motor air outlet 35.Said expansion anechoic chamber 24 is communicated with HEPA receiving room 23, so said expansion anechoic chamber 24 is communicated with air-out passage 7.On the cross section perpendicular to said air-out passage 7, expansion anechoic chamber 24 has first width W 1, said air-out passage 7 has second width W 2, and said HEPA receiving room 23 has receiving room width W 3; Second width W, 2 sums of said two air-out passages 7 are less than said first width W 1 and the W3, that is 2W2 < W1,2W2 < W3; In the present embodiment, second width of two air-out passages 7 is equal, so; Use 2W2; In the practical application, second width that can two air-out passages 7 can be unequal, as long as satisfy first width W 1 of two air-out width of channel sums less than expansion anechoic chamber 24.Said expansion anechoic chamber 24 perpendicular to the size on first width W, 1 direction less than said first width W 1; That is; Said two relative first walls 241 and the distance between second wall 242 are less than first width W 1, and like this, said expansion anechoic chamber 24 just is similar to the space of cuboid; Air can fully expand in expansion anechoic chamber 24, helps reducing noise.Said air-out passage 7 extends in the horizontal direction, and extend at vertical direction said expansion anechoic chamber 24, so, can make air upwards spray, air can fully expand in expansion anechoic chamber 24.Certainly; In the embodiment that does not limit, also can cancel the design of HEPA receiving room 23, like this; Said expansion anechoic chamber 24 is communicated with said two air-out passages 7, and expansion anechoic chamber 24 first width W 1 in vertical direction is greater than the width sum of second width W 2 of two air-out passages 7.Change as another kind, said air-out passage 7 also can be made up of the sidewall of the accommodating chamber 22 of inner cover 2 (the first side wall 222, second sidewall 223, the 3rd sidewall 224 and the 4th sidewall 225), the outer wall of electric machine assembly 3 and the diapire of shell 1, and this moment; Said accommodating chamber 22 comprises sidewall, roof 221 and diapire; Like this, just by the outer wall of electric machine assembly 3, the sidewall and the diapire of accommodating chamber 22 surround said air-out passage 7; And; Owing to need surround two air-out passages 7, so electric machine assembly 3 is usually located at the middle part of accommodating chamber 22.
See also Fig. 2, the course of work of dust catcher of the present invention is following:
The motor 32 of electric machine assembly 3 rotates and produces negative pressure, thereby the air of band foreign material and dust gets into said dirt chamber 21 from said air inlet 11, and foreign material and dust are stored in dirt chamber 21.Air gets into three sidewall 224 that from motor air outlet blow to accommodating chamber 22 from motor air inlet 34 through motor air outlet 35 backs through air intake passage; Air-out passage 7 backs through forming between second sidewall 223 and the 4th sidewall 224 and the electric machine assembly 3 get into expansion anechoic chamber 24 through HEPA assembly 4; Because on cross section perpendicular to air-out passage 7; First width W 1 of said expansion anechoic chamber 24 is greater than second width W, 2 sums of two air-out passages 7, so air directly gets into bigger expansion anechoic chamber 24 by little space suddenly through HEPA assembly 4 backs; Air fully expands in this expansion anechoic chamber 24 and by noise reduction; So reduced noise, then, from discharging from air outlet 12 through passage 61.
See also Fig. 4 and Fig. 5; In the present invention, the rotating shaft of the motor 32 of said electric machine assembly 3 is vertically placed, and said dirt chamber 21 and expansion anechoic chamber 24 are positioned at the relative both sides of accommodating chamber 22; And owing to the size of general dust catcher all is controlled in the high 240mm of the wide 270mm of long 430mm; Like this, this of expansion anechoic chamber 24 is deposited just can do very big, has solved the space problem of expansion anechoic chamber 24.
See also Fig. 4 and Fig. 5, in the present invention, vertically be placed as the basis with the motor 32 of electric machine assembly 3; Said air outlet 12 is positioned on the straight line with motor air inlet 34, like this, has rationally utilized motor 32 space on every side; The motion path that is equivalent to air is at least around 32 1 weeks of motor, so, the air movement path length; Also can reach the purpose that reduces noise, the motion path of air is shown in arrow.Certainly; The appearance not of uniform size of air outlet 12 and motor air inlet 34; But, in order to reach the purpose that prolongs the path, said motor air inlet 34 have at least a part be positioned at air outlet 12 under; So, said air outlet 12 and motor air inlet 34 be positioned at be construed as on the straight line that both in the vertical directions overlap or motor air inlet 34 have at least a part be positioned at air outlet 12 under.
The above is merely preferred embodiment of the present invention, so can not limit protection scope of the present invention with this, any equivalent variations and modification that technical scheme of the present invention is done all should belong to the scope that circle claim of the present invention is contained.
Claims (10)
1. quiet dust catcher; This dust catcher comprises shell, inner cover and electric machine assembly; Described shell is provided with air inlet and air outlet and this shell and wraps up said inner cover and electric machine assembly; This inner cover has the accommodating chamber that holds said electric machine assembly, and the motor air inlet that described electric machine assembly is provided with the motor air outlet and is connected with described air inlet is characterized in that:
Also has the expansion anechoic chamber that is communicated with said air outlet on the said inner cover;
Said motor air outlet towards back to said expansion anechoic chamber; Surround two air-out passages that are communicated with described motor air outlet and expansion anechoic chamber between the diapire of the outer wall of said electric machine assembly, the sidewall of accommodating chamber and shell, two said air-out passages lay respectively at the both sides of said motor air outlet;
On the cross section perpendicular to described air-out passage, described expanding chamber has first width, and described air-out passage has second width, and described first width is greater than the second width sum of two said air-out passages;
Perhaps,
Also be provided with the expansion anechoic chamber of the said air outlet of connection and the HEPA receiving room between expansion anechoic chamber and accommodating chamber on the said inner cover, this HEPA receiving room is communicated with the expansion anechoic chamber;
Said motor air outlet towards back to said expansion anechoic chamber; Surround two air-out passages that are communicated with said motor air outlet and HEPA receiving room between the diapire of the outer wall of said electric machine assembly, the sidewall of accommodating chamber and shell, two described air-out passages lay respectively at the both sides of said motor air outlet;
On cross section perpendicular to described air-out passage; This expansion anechoic chamber has first width; Described air-out passage has second width, and said HEPA receiving room has the receiving room width, and the second width sum of two said air-out passages is less than said first width and receiving room width.
2. a kind of quiet dust catcher as claimed in claim 1, it is characterized in that: the rotating shaft of the motor of said electric machine assembly is vertically placed, said motor air inlet than said motor air outlet further from ground.
3. a kind of quiet dust catcher as claimed in claim 1 is characterized in that: said expansion anechoic chamber perpendicular to the size on said first width less than said first width.
4. like any one described a kind of quiet dust catcher of claim 1 to 3, it is characterized in that: described air-out passage extends in the horizontal direction, and extend at vertical direction said expansion anechoic chamber.
5. a kind of quiet dust catcher as claimed in claim 1; It is characterized in that: said inner cover is provided with the dirt chamber; This dirt chamber and expansion anechoic chamber are positioned at the relative both sides of accommodating chamber; It is that said motor air inlet is communicated with the air inlet of dust catcher through the dirt chamber that said motor air inlet is communicated with the air inlet of dust catcher, and the air outlet of said dust catcher and motor air inlet are positioned on the straight line.
6. quiet dust catcher, it comprises electric machine assembly and inner cover, and said electric machine assembly has motor air inlet and the motor air outlet that communicates with the air inlet of dust catcher, and described inner cover is provided with the accommodating chamber that holds electric machine assembly, it is characterized in that:
Said dust catcher also is provided with the expansion anechoic chamber of the air outlet that is communicated with dust catcher;
Said motor air outlet towards back to said expansion anechoic chamber; Said electric machine assembly is positioned at the accommodating chamber middle part; The outer wall of said electric machine assembly forms two air-out passages that are communicated with said motor air outlet and said expansion anechoic chamber with the sidewall of accommodating chamber and diapire, and two said air-out passages lay respectively at the both sides of said motor air outlet;
On the cross section perpendicular to described air-out passage, described expansion anechoic chamber has first width, and described air-out passage has second width, and described first width is greater than the second width sum of two said air-out passages;
Perhaps,
Expansion anechoic chamber that said dust catcher also is provided with and the air outlet of dust catcher is communicated with and the HEPA receiving room between expansion anechoic chamber and accommodating chamber, this HEPA receiving room is communicated with the expansion anechoic chamber;
Said motor air outlet towards back to said expansion anechoic chamber; Said electric machine assembly is positioned at the accommodating chamber middle part; The outer wall of said electric machine assembly surrounds two air-out passages that are communicated with said motor air outlet and said expansion anechoic chamber with the sidewall of accommodating chamber, and said air-out passage is positioned at the both sides of said motor air outlet;
On cross section perpendicular to described air-out passage; This expansion anechoic chamber has first width; Described air-out passage has second width, and said HEPA receiving room has the receiving room width, and the second width sum of two said air-out passages is less than said first width and receiving room width.
7. a kind of quiet dust catcher as claimed in claim 6, it is characterized in that: the machine shaft of said electric machine assembly is vertically placed, said motor air inlet than motor air outlet further from ground.
8. a kind of quiet dust catcher as claimed in claim 6 is characterized in that: said expansion anechoic chamber perpendicular to the size on said first width less than said first width.
9. like any one described a kind of quiet dust catcher in the claim 6 to 8, it is characterized in that: described air-out passage extends in the horizontal direction, and extend at vertical direction said expansion anechoic chamber.
10. a kind of quiet dust catcher as claimed in claim 6; It is characterized in that: said inner cover is provided with the dirt chamber; This dirt chamber and expansion anechoic chamber are positioned at the relative both sides of accommodating chamber; It is that said motor air inlet is communicated with the air inlet of dust catcher through the dirt chamber that said motor air inlet is communicated with the air inlet of dust catcher, and the air outlet of said dust catcher and motor air inlet are positioned on the straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110270489A CN102309285A (en) | 2011-09-14 | 2011-09-14 | Silent dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110270489A CN102309285A (en) | 2011-09-14 | 2011-09-14 | Silent dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102309285A true CN102309285A (en) | 2012-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110270489A Pending CN102309285A (en) | 2011-09-14 | 2011-09-14 | Silent dust collector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014166342A1 (en) * | 2013-04-12 | 2014-10-16 | 天佑电器（苏州）有限公司 | Air outlet duct of suction cleaner |
| CN106691303A (en) * | 2017-01-09 | 2017-05-24 | 苏州格润德电气有限公司 | Dust remover air outlet adjusting system and dust remover adopting same |
| WO2023279537A1 (en) * | 2021-07-05 | 2023-01-12 | 苏州市春菊电器有限公司 | Vacuum cleaner mainframe air output structure having waterproof fan blades |
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| US4970753A (en) * | 1990-02-23 | 1990-11-20 | Ryobi Motor Products Corp. | Vacuum cleaner noise reducing arrangement |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014166342A1 (en) * | 2013-04-12 | 2014-10-16 | 天佑电器（苏州）有限公司 | Air outlet duct of suction cleaner |
| CN106691303A (en) * | 2017-01-09 | 2017-05-24 | 苏州格润德电气有限公司 | Dust remover air outlet adjusting system and dust remover adopting same |
| CN106691303B (en) * | 2017-01-09 | 2022-03-29 | 苏州格润德电气有限公司 | Air outlet adjusting system of dust collector and dust collector using same |
| WO2023279537A1 (en) * | 2021-07-05 | 2023-01-12 | 苏州市春菊电器有限公司 | Vacuum cleaner mainframe air output structure having waterproof fan blades |
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Address after: No. 39 Cao Hu road Xiangcheng Economic Development Zone in Suzhou City, Jiangsu province 215100 Applicant after: JIANGSU MIDEA CLEANING ELECTRICAL APPLIANCE CO., LTD. Address before: River Road, Suzhou City, Jiangsu Province, Li Xiangcheng District No. 999 215131 Applicant before: Jiangsu Midea Chunhua Electric Appliance Co., Ltd. |
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Application publication date: 20120111 |