CN104159488B - Electric dust collector - Google Patents
Electric dust collector Download PDFInfo
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- CN104159488B CN104159488B CN201280070213.0A CN201280070213A CN104159488B CN 104159488 B CN104159488 B CN 104159488B CN 201280070213 A CN201280070213 A CN 201280070213A CN 104159488 B CN104159488 B CN 104159488B
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- dust collector
- cowling panel
- electric blower
- electric
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Suction Cleaners (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Electric dust collector has supporting parts (13) and annular cowling panel (17a), these supporting parts (13) cover the front peripheral part of electric blower (8), this cowling panel (17a) has rake (28) and is supported by the maintaining part (29) that parts (13) clamp, this rake (28) possesses peristome, towards the air inlet (11) of fan guard (10).Cowling panel (17a) is when being supported by parts (13) and clamping, it is configured to arrange gap (30) between cowling panel (17a) and inlet guide part (12), and the space being configured between rake (28) and maintaining part (29) is formed with dead room (22).
Description
Technical field
The present invention relates to the electric dust collector of a kind of noise when reducing operating.
Background technology
Figure 10 is the median vertical section figure of the main body of dust collector of conventional electric dust collector.As shown in Figure 10, conventional electric dust collector is equipped with the electric blower 8 producing suction air and the dust filter 5 of upstream side being positioned at this electric blower 8.Dust is made to be flowed into dust filter 5 with air to make dust separate with air.Dust is trapped in dust filter 5, and air flow is arranged at the electric blower 8 at the rear portion of dust filter 5.
And, the cowling panel 37 that being used near the air inlet 11 of electric blower 8 is improved rectified action is clamped in the supporting parts 13 being made up of soft materials such as rubber, make this cowling panel 37 abut with the inlet guide part 12 of the air inlet 11 forming electric blower 8, thus carry out (referring for example to patent documentation 1) is installed with structure very close to each other.
But, in this conventional vacuum cleaner, when air flows to electric blower 8 by dust filter 5, the suction performance of electric blower 8 improves, but the wind noise etc. during suction air is delivered to the outside of main body of dust collector 4, therefore exist and produce this problem of noise.
Patent documentation 1: Japanese Unexamined Patent Publication 2011-106408 publication.
Summary of the invention
The electric dust collector of the present invention possesses electric blower, supporting parts and annular cowling panel.Electric blower has: motor；Paddle wheel fan, it is fixed in the rotary shaft of motor, is driven in rotation；Fan guard, it has air inlet, covers paddle wheel fan；And inlet guide part, it is fixed in fan guard, forms air inlet.Supporting parts cover a part for the peripheral part of electric blower.Cowling panel has rake and is supported by the maintaining part of parts clamping, and this rake possesses peristome, towards the air inlet of fan guard.Cowling panel, when being supported by parts clamping, is configured to arrange gap between cowling panel and inlet guide part, and the space being configured between rake and maintaining part forms dead room.
According to said structure, enter into air sympathetic response in dead room of dead room, it is possible to obtain the soundproof effect identical with Helmholtz resonator.It is as a result, it is possible to make the sound attenuation aspirated in air caused along with the wind noise produced near the pump orifice of electric blower.
Accompanying drawing explanation
Fig. 1 is the overall perspective view of the electric dust collector in embodiments of the present invention 1.
Fig. 2 is the median vertical section figure of the main body of dust collector of the electric dust collector in embodiments of the present invention 1.
Fig. 3 is the front axonometric chart of the cowling panel of the electric dust collector in embodiments of the present invention 1.
Fig. 4 is the rear perspective view of the cowling panel of the electric dust collector in embodiments of the present invention 1.
Fig. 5 is the rear perspective view of the cowling panel in embodiments of the present invention 2.
Fig. 6 is the median vertical section figure of the main body of dust collector of the electric dust collector in embodiments of the present invention 2.
Fig. 7 is the rear perspective view of the cowling panel being supported by parts carry in embodiments of the present invention 3.
Fig. 8 is the rear perspective view of the cowling panel being supported by parts carry in embodiments of the present invention 4.
Fig. 9 is the front axonometric chart of the cowling panel supported by electric blower by supporting parts in embodiments of the present invention 5.
Figure 10 is the median vertical section figure of the main body of dust collector of conventional electric dust collector.
Detailed description of the invention
Below, it is described with reference to embodiments of the present invention.Additionally, the present invention is not limited to present embodiment.
(embodiment 1)
Use Fig. 1～Fig. 4 that the electric dust collector in embodiments of the present invention 1 is described.Fig. 1 is the overall perspective view of the electric dust collector in embodiments of the present invention 1.Fig. 2 is the median vertical section figure of the main body of dust collector of the electric dust collector in embodiments of the present invention 1.Fig. 3 is the front axonometric chart of the cowling panel of the electric dust collector in embodiments of the present invention 1.Fig. 4 is the rear perspective view of the cowling panel of the electric dust collector in embodiments of the present invention 1.
Electric dust collector in present embodiment possesses floor spray nozzle 1, extension tube 2, dust flexible pipe 3 and main body of dust collector 4.Floor spray nozzle 1, extension tube 2, dust flexible pipe 3 and main body of dust collector 4 are attached successively.In main body of dust collector 4, dust filter 5 is to arrange in the way of being connected the connector of dust flexible pipe 3.At the rear portion of main body of dust collector 4, electric blower 8 is set by the separation lattice 7 of dust filter 5, filter frame 6 and main body of dust collector 4.
Electric blower 8 has motor 9, paddle wheel fan (not shown) and fan guard 10.Paddle wheel fan is fixed in the rotary shaft of motor 9, is driven in rotation.Fan guard 10 has air inlet 11, covers paddle wheel fan.Fan guard 10 is fixed with the inlet guide part 12 forming air inlet 11.Air vent 26 it is provided with in motor 9.Lower wall at sound insulation housing 16 is provided with sound insulation housing air vent 18, and rear wall is provided with main body air vent 19.
Electric blower 8 is by supporting parts 13 and vibration-proof rubber 15 by main body of dust collector 4 and sound insulation housing 16 elastic bearing.Supporting parts 13 are made up of soft materials such as the rubber of the front peripheral part being arranged at fan guard 10.Vibration-proof rubber 15 is arranged at the housing department 14 of motor 9.So, supporting parts 13 are configured to cover a part for the front peripheral part of electric blower 8.Here, the front of electric blower 8 refers to the updrift side of suction air, rear refers to the downstream direction of suction air.The most identical.
The cowling panel 17a of toroidal is supported by parts 13 and is supported.Cowling panel 17a has rake 28 and is supported by the maintaining part 29 of parts 13 clamping, and this rake 28 possesses peristome 27, towards the air inlet 11 of fan guard 10.This cowling panel 17a, when being clamped by the supporting parts 13 being installed on fan guard 10, is configured to arrange gap 30 between cowling panel 17a and inlet guide part 12, and the space being configured between rake 28 and maintaining part 29 forms dead room 22.
And, as in figure 2 it is shown, the space surrounded by the dead room 22 of cowling panel 17a, supporting parts 13, fan guard 10 and inlet guide part 12 becomes the muffler space 31 as Helmholtz resonator.
Below, illustrate that there is the action of the electric dust collector of said structure, effect.
When electric dust collector and power supply are attached and drive electric blower 8, from floor spray nozzle 1 suction air containing dust.The dust filter 5 that the air being sucked is sent in main body of dust collector 4 via extension tube 2, dust flexible pipe 3.Here, dust is separated with air, dust is trapped in dust filter 5.On the other hand, air passes through filter frame 6, by being arranged at the blow vent 20 separating lattice 7 of main body of dust collector 4 and by by the cowling panel 17a rectification clamped by supporting parts 13.Air after rectification is flowed into the air inlet 11 of electric blower 8, makes motor 9 cool down and discharges from air vent 26.The air discharged from air vent 26 is discharged to machine from main body air vent 19 by the path that formed by the outer wall of the inwall of main body of dust collector 4 and sound insulation housing 16 from sound insulation housing air vent 18.The flowing of above-mentioned a series of air is shown with arrow 23.
Now, the noise element of wind noise when comprising suction in being flowed into the suction airstream of air inlet 11 of electric blower 8.Being flowed into the period till air inlet 11 in the suction airstream comprising this noise from cowling panel 17a, noise enters into muffler space 31 from the gap 30 between cowling panel 17a and inlet guide part 12.Enter into sound sympathetic response in muffler space 31 of muffler space 31, it is possible to obtain the soundproof effect identical with Helmholtz resonator, the sound attenuation of wind noise when comprising suction.And, the suction airstream of sound attenuation is flowed into air inlet 11, makes motor 9 cool down and discharges from air vent 26.
Additionally, cowling panel 17a is when being clamped by the supporting parts 13 being installed on fan guard 10, it is configured to arrange gap 30 between cowling panel 17a and inlet guide part 12, therefore abuts with the inlet guide part 12 of electric blower 8 from the conventional such cowling panel of electric dust collector 37 and structure very close to each other is different.Therefore, it is possible to this situation of outside that the noise etc. that the wind noise the etc. when noise making to be delivered to cowling panel 17a along with the vibration rotating generation of electric blower 8 and resonating, suction air is delivered to electric blower 8 and produces travels to main body of dust collector 4 reduces.
(embodiment 2)
Electric dust collector in embodiments of the present invention 2 is described.Fig. 5 is the rear perspective view of the cowling panel in embodiments of the present invention 2.Fig. 6 is the median vertical section figure of the main body of dust collector of the electric dust collector in embodiments of the present invention 2.Hereinafter, the part identical with embodiment 1 is added identical reference and omitted the description.
As it is shown in figure 5, the inner circumferential of dead room 22 that the space between rake 28 and maintaining part 29 in cowling panel 17b in the present embodiment is formed is configured with deadener 24.By this structure, enter into sound sympathetic response in muffler space 31 of muffler space 31, it is possible to obtain the soundproof effect identical with Helmholtz resonator, and also be configured in deadener 24 sound-absorbing of the inner circumferential of dead room 22.Therefore, the effect making wind noise when noise, suction decay is strengthened.
It addition, in order to reliably keep the deadener 24 being configured at the inner circumferential of dead room 22, and vacate at the internal face of the rake 28 of cowling panel 17b and be positioned apart from multiple holding rib 32.Vacating interval between holding rib 32 is to prevent what holding rib 32 from blocking deadener 24 in dead room 22 to expose area, making deadener 24 expose in large area in muffler space 31.It addition, this holding rib 32 is the most as shown in Figure 6, the end of holding rib 32 is configured to all be not in contact with any position.Thus, the noise being delivered to cowling panel 17b along with the vibration rotating generation of electric blower 8 and resonate is not produced.
(embodiment 3)
Electric dust collector in embodiments of the present invention 3 is described.Fig. 7 is the rear perspective view of the cowling panel being supported by parts carry in embodiments of the present invention 3.Below, the part identical with embodiment 1 is added identical reference and omitted the description.
As it is shown in fig. 7, the dead room 22 that the cowling panel 17c in present embodiment is configured to utilize rib 25 to be formed the space between rake 28 and maintaining part 29 is separated, it is consequently formed multiple dead room 33.Thereby, it is possible to multiple respective spatial volumes of dead room 33 are diminished, therefore, it is possible to reduce high-frequency sound efficiently.Confirm that dead room that spatial volume is little is for reducing high-frequency sound more effectively from the soundproof effect characteristic of Helmholtz resonator.
(embodiment 4)
Electric dust collector in embodiments of the present invention 4 is described.Fig. 8 is the rear perspective view of the cowling panel being supported by parts carry in embodiments of the present invention 4.Below, add identical reference to the identical part of embodiment 1 and 3 and omit the description.
As shown in Figure 8, the dead room 22 that the cowling panel 17d in present embodiment is configured to utilize rib 25 to be formed the space between rake 28 and maintaining part 29 is separated, and is consequently formed multiple dead rooms 34 that spatial volume is different.Thereby, it is possible to multiple respective spatial volumes of dead room 34 are set to different sizes, therefore can obtain soundproof effect for the sound that frequency is different, it is possible to make the wind noise decay when noise of different frequency, suction.
(embodiment 5)
Electric dust collector in embodiments of the present invention 5 is described.Fig. 9 is the front axonometric chart of the cowling panel supported by electric blower by supporting parts in embodiments of the present invention 5.Below, the part identical with embodiment 1 is added identical reference and omitted the description.
As it is shown in figure 9, the cowling panel 17e in present embodiment is configured to the internal diameter A internal diameter B more than the air inlet 11 of electric blower 8 of peristome 27.Thus, when electric blower 8 is installed to main body of dust collector 4, even if the position that arranges being supported by the cowling panel 17e that parts 13 are kept is deviateed, it is also possible to prevent the peristome 27 of cowling panel 17e from blocking the air inlet 11 of electric blower 8.Therefore, it is possible to the wind noise that suppression is caused by suction airstream turbulization, and also it is able to ensure that desired suction performance.
As mentioned above, the electric dust collector of embodiments of the present invention possesses muffler space 31, in this muffler space 31, rear side at the cowling panel 17 as existing structure component arranges dead room 22, and gap 30 is set between the inlet guide part 12 of cowling panel 17 and electric blower 8, it is possible to obtain the soundproof effect of Helmholtz resonator.Thus, air sympathetic response in muffler space 31 of muffler space 31 is entered into, it is possible to obtain the soundproof effect identical with Helmholtz resonator.It, as a result, it is possible to make wind noise when noise, suction decay, makes the lower noise that cannot realize at the air inlet parts of the electric blower of conventional vacuum cleaner be possibly realized.Additionally, the general name of cowling panel 17a～17e that cowling panel 17 is above-mentioned embodiment 1～5.
It addition, the cowling panel 17 of embodiments of the present invention is when being clamped by the supporting parts 13 being installed on fan guard 10, it is configured to arrange gap 30 between cowling panel 17 and inlet guide part 12.Therefore, it is possible to this situation of outside that the noise etc. that the wind noise the etc. when noise making to be delivered to cowling panel 17 along with the vibration rotating generation of electric blower 8 and resonating, suction air is delivered to electric blower 8 and produces travels to main body of dust collector 4 reduces.
Additionally, in the present embodiment, use the dust-collecting filters such as paper bag as dust collecting part, but use the dust collect plant of cyclone separating also to be able to similarly obtain reducing this effect of noise during operating as dust collecting part.
As described above, the electric dust collector of the present invention possesses electric blower, supporting parts and annular cowling panel.Electric blower has: motor；Paddle wheel fan, it is fixed in the rotary shaft of motor, is driven in rotation；Fan guard, it has air inlet, covers paddle wheel fan；And inlet guide part, it is fixed in fan guard, forms air inlet.Supporting parts cover a part for the peripheral part of electric blower.Cowling panel has rake and is supported by the maintaining part of parts clamping, and this rake possesses peristome, towards the air inlet of fan guard.Cowling panel, when being supported by parts clamping, is configured to arrange gap between cowling panel and inlet guide part, and the space being configured between rake and maintaining part forms dead room.
Thus, the gap that the noise aspirated in air caused along with the wind noise produced near the pump orifice of electric blower is arranged between cowling panel and the inlet guide part of electric blower in the supporting parts clamping being made up of soft materials such as rubber enters into the muffler space formed by dead room of the inner side being arranged at cowling panel.Enter into air sympathetic response in muffler space of muffler space, it is possible to obtain the soundproof effect identical with Helmholtz resonator, it is possible to make wind noise decay when noise, suction.Additionally, cowling panel is when being clamped by the supporting parts being installed on fan guard, it is configured to arrange gap between cowling panel and inlet guide part, therefore, it is possible to this situation of outside that the noise etc. that the wind noise the etc. when noise making to be delivered to cowling panel along with the vibration rotating generation of electric blower and resonating, suction air is delivered to electric blower and produces travels to main body of dust collector reduces.
It addition, in the electric dust collector of the present invention, it is also possible to the inner circumferential at dead room configures deadener.Thus, enter into sound sympathetic response in muffler space of muffler space, it is possible to obtain the soundproof effect identical with Helmholtz resonator, and, the deadener in dead room eliminate the noise, therefore, it is possible to wind noise decay when making noise, suction.
It addition, in the electric dust collector of the present invention, it is also possible to by using rib that dead room is separated, form multiple dead room.Thereby, it is possible to make the respective spatial volume of multiple dead room arrange little, therefore, it is possible to be effectively reduced high-frequency sound.Confirm that dead room that spatial volume is little is for reducing high-frequency sound more effectively from the soundproof effect characteristic of Helmholtz resonator.
It addition, in the electric dust collector of the present invention, it is also possible to arrange rib in the way of the spatial volume that makes multiple dead room is different.Thereby, it is possible to respective for multiple dead rooms spatial volume is set to different size, therefore, it is possible to obtain the soundproof effect of the sound of different frequency.It is as a result, it is possible to make the wind noise when noise of different frequency, suction decay.
It addition, in the electric dust collector of the present invention, it is also possible to the internal diameter of the air inlet that the internal diameter of the peristome of cowling panel is possessed more than electric blower.Thus, when electric blower is installed to main body of dust collector, even if the position that arranges being maintained at the cowling panel of supporting parts is deviateed, it is also possible to prevent the peristome of cowling panel from blocking the air inlet of electric blower.It is as a result, it is possible to suppress the wind noise caused by suction airstream turbulization, and also is able to ensure that desired suction performance.
Industrial applicability
As it has been described above, the noise when electric dust collector of the present invention is capable of reducing operating, therefore, it is possible to be applied to maintain the purposes of the electric dust collector that high suction force reduces noise.
Description of reference numerals
8: electric blower；9: motor；10: fan guard；11: air inlet；12: inlet guide part；13: supporting parts；17a～17e: cowling panel；22,33,34: dead room；24: deadener；25: rib；27: peristome；28: rake；29: maintaining part；30: gap.
Claims (5)
1. an electric dust collector, possesses:
Main body of dust collector；And
Electric blower, it separates after lattice are arranged at above-mentioned main body of dust collector by have a blow vent
Portion, above-mentioned electric blower has motor, paddle wheel fan, fan guard and an inlet guide part, wherein,
This paddle wheel fan is fixed in the rotary shaft of above-mentioned motor, is driven in rotation, and this fan guard has air inlet
Mouthful, covering above-mentioned paddle wheel fan, this inlet guide part is fixed in said fan cover, forms above-mentioned air inlet
Mouthful；
Supporting parts, a part for the front peripheral part of its above-mentioned electric blower of covering；And
Annular cowling panel, it has rake and the maintaining part by the clamping of above-mentioned supporting parts, is somebody's turn to do
Rake possesses peristome, towards the air inlet of said fan cover,
Wherein, above-mentioned cowling panel, when being clamped by above-mentioned supporting parts, is configured to above-mentioned whole
Gap is set between stream plate and above-mentioned inlet guide part, and is configured in above-mentioned rake and above-mentioned holding
Space between portion forms dead room.
Electric dust collector the most according to claim 1, it is characterised in that
Inner circumferential at above-mentioned dead room is configured with deadener.
Electric dust collector the most according to claim 1, it is characterised in that
By using rib that above-mentioned dead room is separated, form multiple dead room.
Electric dust collector the most according to claim 3, it is characterised in that
Above-mentioned rib is arranged in the way of the spatial volume that makes above-mentioned multiple dead room is different.
5. according to the electric dust collector described in any one in Claims 1 to 4, it is characterised in that
The above-mentioned air inlet that the internal diameter of the peristome of above-mentioned cowling panel is possessed more than above-mentioned electric blower
Internal diameter.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-038444 | 2012-02-24 | ||
| JP2012038444A JP5899399B2 (en) | 2012-02-24 | 2012-02-24 | Electric vacuum cleaner |
| PCT/JP2012/007970 WO2013124939A1 (en) | 2012-02-24 | 2012-12-13 | Electric vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104159488A CN104159488A (en) | 2014-11-19 |
| CN104159488B true CN104159488B (en) | 2016-08-24 |
Family
ID=49005163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280070213.0A Active CN104159488B (en) | 2012-02-24 | 2012-12-13 | Electric dust collector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5899399B2 (en) |
| CN (1) | CN104159488B (en) |
| WO (1) | WO2013124939A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160079277A (en) * | 2014-12-26 | 2016-07-06 | 삼성전자주식회사 | Vacuum cleaner and control method for the same |
| KR101684796B1 (en) | 2015-08-18 | 2016-12-08 | 엘지전자 주식회사 | Suction unit |
| CN108397273B (en) * | 2017-02-06 | 2022-04-29 | 福特环球技术公司 | Cooling fan for engine cooling system |
| US10473120B2 (en) | 2017-03-09 | 2019-11-12 | Denso International America, Inc. | Blower assembly having resonators and resonator assembly |
| DE102017111910A1 (en) | 2017-05-31 | 2018-12-06 | Alfred Kärcher SE & Co. KG | cleaner |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5535124A (en) * | 1978-09-04 | 1980-03-12 | Tokyo Electric Co Ltd | Vacuum cleaner |
| US4280245A (en) * | 1980-02-19 | 1981-07-28 | Shop-Vac Corporation | Sound dome for electric vacuum cleaner |
| US4640697A (en) * | 1985-10-01 | 1987-02-03 | Rexair, Inc. | Vacuum cleaner construction |
| KR930001867A (en) * | 1991-07-26 | 1993-02-22 | 배순훈 | Low noise vacuum cleaner |
| JPH08219095A (en) * | 1995-02-17 | 1996-08-27 | Hitachi Ltd | Vacuum cleaner and built-in motor-driven blower |
| JPH0956644A (en) * | 1995-08-24 | 1997-03-04 | Matsushita Electric Ind Co Ltd | Vacuum cleaner |
| JP2003290089A (en) * | 2002-03-29 | 2003-10-14 | Toshiba Tec Corp | Vacuum cleaner |
| JP2004279779A (en) * | 2003-03-17 | 2004-10-07 | Mitsubishi Electric Corp | Noise reducing device |
| CN1535643A (en) * | 2003-04-11 | 2004-10-13 | 乐金电子(天津)电器有限公司 | Silencer of vacuum dust collector |
| CN100372489C (en) * | 2003-06-23 | 2008-03-05 | 乐金电子(天津)电器有限公司 | Vacuum cleaner |
| JP2010029259A (en) * | 2008-07-25 | 2010-02-12 | Panasonic Corp | Vacuum cleaner |
| JP5125855B2 (en) * | 2008-07-30 | 2013-01-23 | パナソニック株式会社 | Electric vacuum cleaner |
| CN201290640Y (en) * | 2008-10-24 | 2009-08-19 | 金莱克电气股份有限公司 | Silencing structure for motor of dust cleaner |
| JP2011106408A (en) * | 2009-11-20 | 2011-06-02 | Panasonic Corp | Electric blower and vacuum cleaner provided with the same |
-
2012
- 2012-02-24 JP JP2012038444A patent/JP5899399B2/en active Active
- 2012-12-13 WO PCT/JP2012/007970 patent/WO2013124939A1/en active Application Filing
- 2012-12-13 CN CN201280070213.0A patent/CN104159488B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104159488A (en) | 2014-11-19 |
| WO2013124939A1 (en) | 2013-08-29 |
| JP2013172807A (en) | 2013-09-05 |
| JP5899399B2 (en) | 2016-04-06 |
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