CN100556352C - Dust catcher - Google Patents
Dust catcher Download PDFInfo
- Publication number
- CN100556352C CN100556352C CNB2007100220340A CN200710022034A CN100556352C CN 100556352 C CN100556352 C CN 100556352C CN B2007100220340 A CNB2007100220340 A CN B2007100220340A CN 200710022034 A CN200710022034 A CN 200710022034A CN 100556352 C CN100556352 C CN 100556352C
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- CN
- China
- Prior art keywords
- retaining wall
- breach
- pedestal
- top cover
- blower fan
- 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.)
- Expired - Fee Related
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- Electric Suction Cleaners (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of dust catcher, comprise pedestal, be arranged on the blower fan on the pedestal and cover on top cover on the pedestal, form the cavity of a ccontaining blower fan between pedestal and the top cover, cavity is connected with outside air by the exhaust outlet that is arranged on the top cover, also be provided with at least two retaining walls between pedestal and the top cover around blower fan, retaining wall extends to top cover from pedestal, and retaining wall is separated into a plurality of separate anechoic chambers with cavity, also has breach on the retaining wall, and the breach on the two adjacent retaining walls staggers mutually, and a plurality of anechoic chambers only are interconnected in indentation, there.The present invention is repeatedly reflected by the sound wave that blower fan is sent, and makes the energy of sound wave obtain decay, therefore has noise reduction preferably.
Description
Technical field
The present invention relates to a kind of dust catcher.
Background technology
Dust catcher of the prior art generally includes housing, is arranged on the blower fan in the housing and is located at the outer lid of blower fan; because the noise of blower fan when work is very big; noise especially for the high power vacuum cleaner of hotel or office building is very big; influence the normal live and work of people; for alleviating noise, can some sound-absorbing materials be set on blower fan or in the housing usually, as sponge; yet placing sponge makes the heat of blower fan be difficult to distribute accidents such as breaking out of fire.Chinese patent ZL96207867.0 discloses a kind of Low noise cleaner, the labyrinth shape gas channel that it constitutes by the silencer cover with scroll silencers channel, prolong the course of air-flow in dust catcher by this, make sound wave multiple attenuation in silencer cover, thereby reduce acoustic wave energy, yet in the noise-reducing structure of this screw type, sound wave can be with most of energy attenuation after must passing through long route; In addition, the noise-reducing structure of screw type has seriously limited the size of air quantity, makes dust catcher can lose part power.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of dust catcher of low noise is provided.
For achieving the above object, the technical solution adopted in the present invention is: a kind of dust catcher, comprise pedestal, be arranged on the blower fan on the described pedestal and cover on top cover on the described pedestal with dust storage chamber, form a cavity between described pedestal and the described top cover, described cavity is by being arranged on the described pedestal or the exhaust outlet on the described top cover is connected with outside air; Also be provided with at least two retaining walls between described pedestal and the described top cover around described blower fan setting, described retaining wall extends to described top cover from described pedestal, and described retaining wall is separated into a plurality of separate anechoic chambers with described cavity, also has breach on the described retaining wall, and the breach on the two adjacent retaining walls staggers mutually, and described a plurality of anechoic chambers only are interconnected in indentation, there.
Further technical scheme of the present invention is: the cross section of described retaining wall has at least part curved, and the center of the circular arc of described retaining wall overlaps with the center of described blower fan.
The cross section of described retaining wall roughly is " C " font, and 180 ° of the opening direction spaces of described two adjacent retaining walls.
Described retaining wall comprises the interior retaining wall that is looped around the described blower fan outside, at least one the middle retaining wall that is looped around the described interior retaining wall outside, and described top cover and also be provided with baffle plate between the retaining wall in the middle of outermost, the breach of offering on this centre retaining wall is positioned at a side of described baffle plate, and described exhaust outlet is positioned at the opposite side of described baffle plate.
Have first breach on the retaining wall in described, the air outlet of described blower fan is towards described first breach.
In addition, described retaining wall is wholely set on described pedestal, or described retaining wall is wholely set on described top cover, or described retaining wall docks mutually and forms by being wholely set convex tendon on described pedestal and described top cover respectively.
A plurality of retaining walls are separated into a plurality of separate anechoic chambers with cavity, make sound wave between two-layer retaining wall through repeatedly the reflection, energy attenuation; And the opening of adjacent two retaining walls staggers mutually, make that the sound wave that part is overflowed from indentation, there is hindered, thereby acoustic wave segment is reflected back toward and proceeds between the retaining wall repeatedly to reflect, another part sound wave continues to enter between the next stage retaining wall and repeatedly reflects, so the present invention compared with prior art has better noise reduction; In addition, said structure has increased gas flow with respect to prior art, has guaranteed the power of dust catcher.
Description of drawings
Accompanying drawing 1 is a main cutaway view of the present invention;
Accompanying drawing 2 is along the cutaway view of A-A in this accompanying drawing 1;
Wherein: 1, pedestal; 2, interior retaining wall; 21, first breach; 3, middle retaining wall; 31, second breach; 4, exhaust outlet; 5, blower fan; 6, dust storage chamber; 7, top cover; 8, baffle plate;
The specific embodiment
Accompanying drawing 1～2 is the preferred embodiments of the present invention, a kind of dust catcher, comprise pedestal 1 with dust storage chamber 6, be arranged on the blower fan 5 on the pedestal 1, cover on the top cover 7 on the pedestal 1, top cover 7 is provided with exhaust outlet 4, make pedestal 1 and top cover 7 surround the cavity that an air outlet that can make blower fan 5 is connected with outside air by exhaust outlet 4, also be provided with two retaining walls between pedestal 1 and the top cover 7 around blower fan 5 settings, the middle retaining wall 3 that this retaining wall comprises the interior retaining wall 2 that is looped around blower fan 5 outsides and is looped around interior retaining wall 3 outsides, retaining wall in the middle of adopting one in the present embodiment can suitably increase the quantity of middle retaining wall in order to reach better erasure effect sometimes.
Interior retaining wall 2 and middle retaining wall 3 extend to top cover 7 from pedestal 1, two retaining walls are separated into two airtight chambers with cavity, constitute first anechoic chamber between interior retaining wall 2 and the blower fan 5, constitute second anechoic chamber between middle retaining wall 3 and the interior retaining wall 2, middle retaining wall 3 constitutes the 3rd anechoic chamber with the top cover 7 in the outside.Wherein, has first breach 21 on the interior retaining wall 2, has second breach 31 on the middle retaining wall 3, and first breach 21 and second breach 31 stagger mutually, first breach 21 and second breach 31 are communicated with first anechoic chamber, second anechoic chamber, the 3rd anechoic chamber, pure air from the air outlet of blower fan 5 is discharged successively through first anechoic chamber, second anechoic chamber and the 3rd anechoic chamber (as the air flow of arrow indication in the accompanying drawing 2), and finally is discharged in the outside air by exhaust outlet 4 places.
For further prolonging the course of sound wave, make it repeatedly carry out reflection loss, also be provided with baffle plate 8 between top cover 7 and the middle retaining wall 3, this second breach 31 is positioned at a side of baffle plate 8, and exhaust outlet 4 is positioned at the opposite side of baffle plate 8, and therefore, sound wave is after second breach 31 comes out, be merely able to propagate to a side that does not have baffle plate 8, and final through just in outside air, dispersing behind the long route by exhaust outlet 4.And the air outlet of blower fan 5 can reduce the loss of air-flow velocity like this towards first breach 21, reduces the power loss of blower fan 5.
The airtight air blanketing that forms between interior retaining wall 2 and middle retaining wall 3 and the top cover 7, make sound wave between two-layer barrier through repeatedly reflection, most of energy attenuation; And the opening of interior retaining wall 2 and middle retaining wall 3 staggers mutually, make that the sound wave that part is overflowed from indentation, there is hindered, thereby acoustic wave segment is reflected back toward first anechoic chamber and proceeds repeatedly to reflect, another part sound wave continues to enter second anechoic chamber and the 3rd anechoic chamber is repeatedly reflected, so the present invention compared with prior art has better noise reduction.
In a preferred embodiment of the invention, the cross section of interior retaining wall 2 and outer retaining wall 3 has at least part curved, and the center of the circular arc of interior retaining wall 2 and middle retaining wall 3 overlaps with the center of blower fan 5; More precisely, the cross section of interior retaining wall 2 and middle retaining wall 3 roughly is " C " font, and 180 ° of first breach 21 and second breach, 31 spaces.
Sometimes, can be wholely set on pedestal 1, perhaps be wholely set on top cover 7 for ease of the processing retaining wall; In the present embodiment, interior retaining wall 2 and middle retaining wall 3 dock mutually and form by being wholely set convex tendon on pedestal 1 and top cover 7 respectively.
Claims (9)
1, a kind of dust catcher, comprise have dust storage chamber (6) pedestal (1), be arranged on the blower fan (5) on the described pedestal (1) and cover on top cover (7) on the described pedestal (1), forming one between described pedestal (1) and the described top cover (7) can be for the cavity of ccontaining blower fan (5), described cavity by be arranged on described pedestal (1) and go up or described top cover (7) on exhaust outlet (4) be connected with outside air; Also be provided with at least two retaining walls (2 between described pedestal (1) and the described top cover (7) around described blower fan (5), 3), it is characterized in that: described retaining wall (2,3) extend to described top cover (7) from described pedestal (1), and described retaining wall (2,3) described cavity is separated into a plurality of separate anechoic chambers, described retaining wall (2,3) upper edge circumferentially offers breach (21,31), described adjacent two retaining walls (2,3) breach (21 on, 31) stagger mutually, described a plurality of anechoic chamber is only at breach (21,31) locate to be interconnected, described top cover (7) and between outermost retaining wall, also be provided with baffle plate (8), the described breach that is positioned on the outermost retaining wall is positioned at a side of described baffle plate (8), and described exhaust outlet (4) is positioned at the opposite side of described baffle plate (8).
2, dust catcher according to claim 1 is characterized in that: the cross section of described retaining wall (2,3) has at least part curved.
3, dust catcher according to claim 2 is characterized in that: the center of circle of the circular arc portion of described retaining wall (2,3) overlaps with the center of described blower fan (5).
4, dust catcher according to claim 2 is characterized in that: the cross section of described retaining wall (2,3) roughly is " C " font, and 180 ° of breach direction spaces on the described two adjacent retaining walls (2,3).
5, dust catcher according to claim 1, it is characterized in that: described retaining wall (2,3) comprise the interior retaining wall (2) that is looped around described blower fan (5) outside and be looped around described in the centre retaining wall (3) in retaining wall (2) outside, offer second breach (31) on this centre retaining wall (3), describedly be positioned at outermost retaining wall and be meant this centre retaining wall (3), and the described breach that is positioned on the outermost retaining wall is meant second breach (31), and described second breach (31) is positioned at a side of described baffle plate (8), and described exhaust outlet (4) is positioned at the opposite side of described baffle plate (8).
6, dust catcher according to claim 5 is characterized in that: have first breach (21) on the retaining wall (2) in described, the air outlet of described blower fan (5) is towards described first breach (21).
7, dust catcher according to claim 1 is characterized in that: described retaining wall (2,3) is wholely set on described pedestal (1).
8, dust catcher according to claim 1 is characterized in that: described retaining wall (2,3) is wholely set on described top cover (7).
9, dust catcher according to claim 1 is characterized in that: described retaining wall (2,3) docks mutually and forms by being wholely set convex tendon on described pedestal (1) and described top cover (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100220340A CN100556352C (en) | 2007-04-28 | 2007-04-28 | Dust catcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100220340A CN100556352C (en) | 2007-04-28 | 2007-04-28 | Dust catcher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101057763A CN101057763A (en) | 2007-10-24 |
| CN100556352C true CN100556352C (en) | 2009-11-04 |
Family
ID=38864178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100220340A Expired - Fee Related CN100556352C (en) | 2007-04-28 | 2007-04-28 | Dust catcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100556352C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014005586A1 (en) | 2012-07-04 | 2014-01-09 | Nilfisk-Advance A/S | A silencer system for a vacuum motor in a suction cleaner |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101933785A (en) * | 2010-08-31 | 2011-01-05 | 孙大亮 | Silencer of dust collector |
| CN103169422B (en) * | 2011-12-20 | 2016-09-07 | 南京乐金熊猫电器有限公司 | There is the small size motor of dust collector storehouse of noise reduction function |
| CN102973207A (en) * | 2012-12-21 | 2013-03-20 | 大连民族学院 | Noise reduction device with function of changing sound transmission track |
| WO2015032151A1 (en) * | 2013-09-06 | 2015-03-12 | 江苏美的春花电器股份有限公司 | Dust collector and air intake device thereof |
| EP3207846B1 (en) * | 2016-02-19 | 2019-01-09 | Nilfisk A/S | Motor housing with silencer for a vacuum cleaning device |
| EP4417100A2 (en) | 2016-03-31 | 2024-08-21 | LG Electronics Inc. | Cleaning apparatus |
| WO2017171495A1 (en) | 2016-03-31 | 2017-10-05 | 엘지전자 주식회사 | Cleaning apparatus |
| KR102560970B1 (en) | 2016-03-31 | 2023-07-31 | 엘지전자 주식회사 | Cleaner |
| US11166607B2 (en) | 2016-03-31 | 2021-11-09 | Lg Electronics Inc. | Cleaner |
| CN206414220U (en) * | 2016-11-15 | 2017-08-18 | 苏州海歌电器科技有限公司 | Dust catcher exhaust air flue |
| CN108652480A (en) * | 2017-03-27 | 2018-10-16 | 佛山市顺德区美的电热电器制造有限公司 | Cup lid component and wall-breaking machine |
| CN108926266B (en) * | 2017-05-27 | 2021-10-26 | 广东美的生活电器制造有限公司 | Amortization lid, bowl cover subassembly and food processor |
| CN109394018A (en) * | 2017-08-18 | 2019-03-01 | 美的集团股份有限公司 | Base assembly and cooking machine |
| CN109224155A (en) * | 2018-10-17 | 2019-01-18 | 安徽海利医疗设备科技有限公司 | A kind of noise reduction stopper structure of electric breast pump |
| CN109224156A (en) * | 2018-10-17 | 2019-01-18 | 安徽海利医疗设备科技有限公司 | A kind of mute type electric breast pump |
| CN113080775B (en) * | 2021-04-13 | 2023-05-23 | 成都莱洁科技有限公司 | Cleaning and sterilizing robot |
-
2007
- 2007-04-28 CN CNB2007100220340A patent/CN100556352C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014005586A1 (en) | 2012-07-04 | 2014-01-09 | Nilfisk-Advance A/S | A silencer system for a vacuum motor in a suction cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101057763A (en) | 2007-10-24 |
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