CN104159488A - Electric vacuum cleaner - Google Patents
Electric vacuum cleaner Download PDFInfo
- Publication number
- CN104159488A CN104159488A CN201280070213.0A CN201280070213A CN104159488A CN 104159488 A CN104159488 A CN 104159488A CN 201280070213 A CN201280070213 A CN 201280070213A CN 104159488 A CN104159488 A CN 104159488A
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- CN
- China
- Prior art keywords
- mentioned
- dust collector
- cowling panel
- electric
- electric blower
- 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.)
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Classifications
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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
Abstract
An electric vacuum cleaner is provided with: a support member (13) which covers the front outer peripheral part of an electric air blower (8); and an annular flow regulating plate (17a) which has a sloped section (28) having an opening and extending toward the air suction opening (11) of a fan case (10) and which also has a holding section (29) gripped by the support member (13). The flow regulating plate (17a) is configured so that, while being gripped by the support member (13), the flow regulating plate (17a) is disposed as to provide a gap (30) between the flow regulating plate (17a) and an air suction guide (12) and a sound deadening chamber (22) is formed in the space between the sloped section (28) and the holding section (29).
Description
Technical field
The present invention relates to a kind of electric dust collector that reduces the noise while turning round.
Background technology
Figure 10 is the central longitudinal sectional view of the main body of dust collector of electric dust collector in the past.As shown in figure 10, electric dust collector is in the past equipped with and produces the electric blower 8 of suction wind and the filter 5 for control of dust that is positioned at the upstream side of this electric blower 8.Make dust and air flow into control of dust and make dust and air separation with filter 5.Dust is trapped in control of dust with in filter 5, and air flow is arranged at the electric blower 8 at the rear portion of filter 5 for control of dust.
And, to near the air inlet of electric blower 8 11, for improving the cowling panel 37 of rectified action, be clamped in the support unit 13 being formed by soft materials such as rubber, make this cowling panel 37 and inlet guide part 12 butts that form the air inlet 11 of electric blower 8, thereby with structure very close to each other, (for example, with reference to patent documentation 1) is installed.
Yet, in this dust catcher in the past, when air uses filter 5 to flow to electric blower 8 by control of dust, the suction performance of electric blower 8 improves, but wind noise during suction air etc. is delivered to the outside of main body of dust collector 4, therefore has this problem of noise that produces.
Patent documentation 1: TOHKEMY 2011-106408 communique
Summary of the invention
Electric dust collector of the present invention possesses electric blower, support unit and annular cowling panel.Electric blower has: motor; Paddle wheel fan, the rotating shaft that it is fixed in 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.Support unit covers a part for the peripheral part of electric blower.The maintaining part that cowling panel has rake and is supported parts clamping, this rake possesses peristome, towards the air inlet of fan guard.Cowling panel, being supported under the state of parts clamping, is configured to, between cowling panel and inlet guide part, gap is set, and the space being configured between rake and maintaining part forms anechoic room.
According to said structure, enter into air sympathetic response in anechoic room of anechoic room, can access the soundproof effect identical with Helmholtz resonator thus.Its result, can make the airborne sound attenuation of suction causing along with near the wind noise producing 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 central longitudinal sectional view of the main body of dust collector of the electric dust collector in embodiments of the present invention 1.
Fig. 3 is the place ahead stereogram 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 central longitudinal sectional view 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 that is supported parts carry in embodiments of the present invention 3.
Fig. 8 is the rear perspective view of the cowling panel that is supported parts carry in embodiments of the present invention 4.
Fig. 9 is the place ahead stereogram that passes through the cowling panel that support unit supported by electric blower in embodiments of the present invention 5.
Figure 10 is the central longitudinal sectional view of the main body of dust collector of electric dust collector in the past.
The specific embodiment
Below, with reference to the accompanying drawings of embodiments of the present invention.In addition, 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 central longitudinal sectional view of the main body of dust collector of the electric dust collector in embodiments of the present invention 1.Fig. 3 is the place ahead stereogram 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, flexible pipe 3 and main body of dust collector 4 for control of dust.Floor spray nozzle 1, extension tube 2, control of dust connect successively with flexible pipe 3 and main body of dust collector 4.In main body of dust collector 4, control of dust with filter 5 with control of dust is arranged by the mode that the connector of flexible pipe 3 is connected.Separation lattice 7 at the rear portion of main body of dust collector 4 by control of dust filter 5, filter frame 6 and main body of dust collector 4 arrange electric blower 8.
Electric blower 8 has motor 9, paddle wheel fan (not shown) and fan guard 10.Paddle wheel fan is fixed in the rotating shaft of motor 9, is driven in rotation.Fan guard 10 has air inlet 11, covers paddle wheel fan.On fan guard 10, be fixed with the inlet guide part 12 that forms air inlet 11.In motor 9, be provided with exhaust outlet 26.Lower wall at sound insulation housing 16 is provided with sound insulation housing exhaust outlet 18, in rear wall, is provided with main body exhaust outlet 19.
Electric blower 8 by support unit 13 and vibration-proof rubber 15 by main body of dust collector 4 and sound insulation housing 16 elastic bearings.Support unit 13 consists of the soft materials such as rubber that are arranged at the place ahead peripheral part of fan guard 10.Vibration-proof rubber 15 is arranged at the housing department 14 of motor 9.Like this, support unit 13 is configured to a part for the place ahead peripheral part that covers electric blower 8.At this, the place ahead of electric blower 8 refers to the updrift side of suction wind, and rear refers to the downstream direction of suction wind.Identical below.
The cowling panel 17a of toroidal is supported parts 13 and supports.The maintaining part 29 that cowling panel 17a has rake 28 and is supported parts 13 clampings, this rake 28 possesses peristome 27, towards the air inlet 11 of fan guard 10.Under the state that this cowling panel 17a clamps at the support unit 13 by being installed on fan guard 10, be configured to, between cowling panel 17a and inlet guide part 12, gap 30 is set, and the space being configured between rake 28 and maintaining part 29 forms anechoic room 22.
And as shown in Figure 2, the space being surrounded by anechoic room 22, support unit 13, fan guard 10 and the inlet guide part 12 of cowling panel 17a becomes the muffler space 31 as Helmholtz resonator.
Below, action, the effect of the electric dust collector with said structure are described.
When electric dust collector is connected with power supply and while driving electric blower 8, the air from floor spray nozzle 1 suction containing dust.The air being sucked is sent to the filter 5 for control of dust in main body of dust collector 4 via extension tube 2, control of dust with flexible pipe 3.At this, dust and air are separated, and dust is trapped in control of dust with in filter 5.On the other hand, air is by filter frame 6, by be arranged at main body of dust collector 4 separation lattice 7 blow vent 20 and by the cowling panel 17a rectification by support unit 13 clampings.Air after rectification flow into the air inlet 11 of electric blower 8, makes motor 9 cooling and discharge from exhaust outlet 26.The air of discharging from exhaust outlet 26 path that the outer wall by the inwall by main body of dust collector 4 and sound insulation housing 16 forms from sound insulation housing exhaust outlet 18 and being discharged to machine from main body exhaust outlet 19.With arrow 23, flowing of above-mentioned a series of air is shown.
The noise composition of the wind noise while now, comprising suction in the suction airstream of air inlet 11 that flow into electric blower 8.During till the suction airstream that comprises this noise flow into air inlet 11 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 the sound of muffler space 31 in the interior sympathetic response of muffler space 31, can access the soundproof effect identical with Helmholtz resonator thus, the sound attenuation of the wind noise while comprising suction.And the suction airstream of sound attenuation flow into air inlet 11, make motor 9 cooling and discharge from exhaust outlet 26.
In addition, under the state that cowling panel 17a clamps at the support unit 13 by being installed on fan guard 10, therefore be configured to, between cowling panel 17a and inlet guide part 12, gap 30 is set, the structure very close to each other with inlet guide part 12 butts of electric blower 8 from the such cowling panel 37 of electric dust collector is in the past different.Therefore, can make to be delivered to cowling panel 17a and wind noise when the noise that resonates, suction air etc. are delivered to electric blower 8 and the noise that produces etc. propagate into this situation of outside of main body of dust collector 4 and reduce along with vibration that the rotation of electric blower 8 produces.
(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 central longitudinal sectional view of the main body of dust collector of the electric dust collector in embodiments of the present invention 2.Below, to the additional identical Reference numeral of the part identical with embodiment 1, also description thereof is omitted.
As shown in Figure 5, the rake 28 in cowling panel 17b in the present embodiment and the formed anechoic room 22 in space between maintaining part 29 disposes acoustic material 24 interior week.By this structure, enter into the sound of muffler space 31 in the interior sympathetic response of muffler space 31, can access the soundproof effect identical with Helmholtz resonator, and be configured in acoustic material 24 sound-absorbings in the interior week of anechoic room 22.Therefore, strengthen the effect of the wind noise decay while making noise, suction.
In addition, in order to keep being reliably disposed at the acoustic material 24 in the interior week of anechoic room 22, and vacate compartment of terrain at the internal face of the rake 28 of cowling panel 17b, a plurality of maintenance ribs 32 are set.Keep vacating between rib 32 interval and be in order to prevent from keeping rib 32 to block the area that exposes of acoustic material 24 in anechoic room 22, in muffler space 31, make acoustic material 24 expose in large area.In addition, this keeps rib 32 also as shown in Figure 6, keeps the end of rib 32 to be configured to any position all less than contacting.Thus, do not produce that the vibration producing along with the rotation of electric blower 8 is delivered to cowling panel 17b and the noise that resonates.
(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 that is supported parts carry in embodiments of the present invention 3.Below, the part identical with embodiment 1 added to identical Reference numeral, and also description thereof is omitted.
As shown in Figure 7, the cowling panel 17c in present embodiment is configured to and utilizes 25 pairs, the rib formed anechoic room 22 in space between rake 28 and maintaining part 29 to separate, and forms thus a plurality of anechoic rooms 33.Thus, a plurality of anechoic rooms 33 spatial volume separately can be diminished, therefore can reduce efficiently high-frequency sound.From the soundproof effect characteristic of Helmholtz resonator, confirmed that the anechoic room that spatial volume is little is more effective for reducing high-frequency sound.
(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 that is supported parts carry in embodiments of the present invention 4.Below, the part identical with embodiment 1 and 3 added to identical Reference numeral, and also description thereof is omitted.
As shown in Figure 8, the cowling panel 17d in present embodiment is configured to and utilizes 25 pairs, the rib formed anechoic room 22 in space between rake 28 and maintaining part 29 to separate, and forms thus the different a plurality of anechoic rooms 34 of spatial volume.Therefore thus, a plurality of anechoic rooms 34 spatial volume separately can be made as to different sizes, for the different sound of frequency, can access soundproof effect, the wind noise decay in the time of can making noise, the suction of different frequency.
(embodiment 5)
Electric dust collector in embodiments of the present invention 5 is described.Fig. 9 passes through support unit by the place ahead stereogram of the cowling panel that electric blower supported in embodiments of the present invention 5.Below, the part identical with embodiment 1 added to identical Reference numeral, and also description thereof is omitted.
As shown in Figure 9, the internal diameter A that the cowling panel 17e in present embodiment is configured to peristome 27 is greater than the internal diameter B of the air inlet 11 of electric blower 8.Thus, when electric blower 8 is installed to main body of dust collector 4, even if be supported the setting position of the cowling panel 17e that parts 13 keep, depart from, also can prevent that the peristome 27 of cowling panel 17e from blocking the air inlet 11 of electric blower 8.Therefore, the wind noise that caused by suction airstream turbulization can be suppressed, and the suction performance of expectation can be guaranteed.
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 anechoic room 22, and between cowling panel 17 and the inlet guide part 12 of electric blower 8, gap 30 is set, can accesses thus the soundproof effect of Helmholtz resonator.Thus, enter into the air of muffler space 31 in muffler space 31 sympathetic responses, can access the soundproof effect identical with Helmholtz resonator.Its result, can make the wind noise decay in noise, when suction, makes the reducing noise that cannot realize at the air inlet parts place of the electric blower of dust catcher in the past become possibility.In addition, cowling panel 17 is the general name of the cowling panel 17a～17e of above-mentioned embodiment 1～5.
In addition, under the state that the cowling panel 17 of embodiments of the present invention clamps at the support unit 13 by being installed on fan guard 10, be configured to, between cowling panel 17 and inlet guide part 12, gap 30 is set.Therefore, can make to be delivered to cowling panel 17 and wind noise when the noise of resonance, suction air etc. are delivered to electric blower 8 and the noise that produces etc. propagate into this situation of outside of main body of dust collector 4 and reduce along with vibration that the rotation of electric blower 8 produces.
In addition, in the present embodiment, use the dust-collecting filters such as paper bag as debris collection section, but this effect of noise while using the dust collect plant of cyclone separating also can similarly obtain reducing running as debris collection section.
As described above, electric dust collector of the present invention possesses electric blower, support unit and annular cowling panel.Electric blower has: motor; Paddle wheel fan, the rotating shaft that it is fixed in 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.Support unit covers a part for the peripheral part of electric blower.The maintaining part that cowling panel has rake and is supported parts clamping, this rake possesses peristome, towards the air inlet of fan guard.Cowling panel, being supported under the state of parts clamping, is configured to, between cowling panel and inlet guide part, gap is set, and the space being configured between rake and maintaining part forms anechoic room.
Thus, the gap arranging between the cowling panel that the airborne noise of suction causing along with near the wind noise producing the pump orifice of electric blower clamps from the support unit by consisting of soft materials such as rubber and the inlet guide part of electric blower enters into the muffler space being formed by anechoic room of the inner side that is arranged at cowling panel.Enter into the air of muffler space in muffler space sympathetic response, can access the soundproof effect identical with Helmholtz resonator thus, the wind noise decay in the time of can making noise, suction.In addition, under the state that cowling panel clamps at the support unit by being installed on fan guard, be configured to, between cowling panel and inlet guide part, gap is set, the vibration that therefore can make the rotation along with electric blower produce is delivered to cowling panel and wind noise when the noise that resonates, suction air etc. are delivered to electric blower and the noise that produces etc. propagate into this situation of outside of main body of dust collector and reduce.
In addition, in electric dust collector of the present invention, also can be at the interior week configuration acoustic material of anechoic room.Thus, enter into the sound of muffler space in muffler space sympathetic response, can access the soundproof effect identical with Helmholtz resonator thus, and, by the acoustic material in anechoic room, eliminated the noise, the wind noise decay in the time of therefore can making noise, suction.
In addition, in electric dust collector of the present invention, also can, by using rib to separate anechoic room, form a plurality of anechoic rooms.Thus, can make a plurality of anechoic rooms spatial volume separately arrange littlely, therefore can effectively reduce high-frequency sound.From the soundproof effect characteristic of Helmholtz resonator, confirmed that the anechoic room that spatial volume is little is more effective for reducing high-frequency sound.
In addition, in electric dust collector of the present invention, also can be so that the different mode of the spatial volume of a plurality of anechoic rooms be arranged rib.Thus, a plurality of anechoic rooms spatial volume separately can be made as to different sizes, therefore can access the soundproof effect of the sound of different frequency.Its result, can make the noise of different frequency, the decay of the wind noise in when suction.
In addition, in electric dust collector of the present invention, the internal diameter of peristome that also can cowling panel is greater than the internal diameter of the air inlet that electric blower possesses.Thus, when electric blower is installed to main body of dust collector, even if be maintained at the setting position of the cowling panel of support unit, depart from, also can prevent that the peristome of cowling panel from blocking the air inlet of electric blower.Its result, can suppress the wind noise that caused by suction airstream turbulization, and can guarantee the suction performance of expectation.
utilizability in industry
As mentioned above, electric dust collector of the present invention can be realized the noise while reducing running, while the suction force that therefore can be applied to remain high reduces the purposes of the electric dust collector of noise.
description of reference numerals
8: electric blower; 9: motor; 10: fan guard; 11: air inlet; 12: inlet guide part; 13: support unit; 17a～17e: cowling panel; 22,33,34: anechoic room; 24: acoustic material; 25: rib; 27: peristome; 28: rake; 29: maintaining part; 30: gap.
Claims (5)
1. an electric dust collector, possesses:
Electric blower, it has motor, paddle wheel fan, fan guard and inlet guide part, wherein, this paddle wheel fan is fixed in the rotating shaft of above-mentioned motor, be driven in rotation, this fan guard has air inlet, covers above-mentioned paddle wheel fan, this inlet guide part is fixed in said fan cover, forms above-mentioned air inlet;
Support unit, it covers a part for the place ahead peripheral part of above-mentioned electric blower; And
Annular cowling panel, the maintaining part that it has rake and is clamped by above-mentioned support unit, this rake possesses peristome, towards the air inlet of said fan cover,
Wherein, above-mentioned cowling panel, under the state being clamped by above-mentioned support unit, is configured to, between above-mentioned cowling panel and above-mentioned inlet guide part, gap is set, and the space being configured between above-mentioned rake and above-mentioned maintaining part forms anechoic room.
2. electric dust collector according to claim 1, is characterized in that,
At above-mentioned anechoic room, interior week dispose acoustic material.
3. electric dust collector according to claim 1, is characterized in that,
By using rib to separate above-mentioned anechoic room, form a plurality of anechoic rooms.
4. electric dust collector according to claim 3, is characterized in that,
So that the different mode of the spatial volume of above-mentioned a plurality of anechoic rooms is arranged above-mentioned rib.
5. according to the electric dust collector described in any one in claim 1～4, it is characterized in that,
The internal diameter of the peristome of above-mentioned cowling panel is greater than the internal diameter of the above-mentioned air inlet that above-mentioned electric blower possesses.
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 true CN104159488A (en) | 2014-11-19 |
| CN104159488B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466151A (en) * | 2015-08-18 | 2017-03-01 | Lg电子株式会社 | Suction apparatus |
| CN108397273A (en) * | 2017-02-06 | 2018-08-14 | 福特环球技术公司 | Cooling fan for engine-cooling system |
Families Citing this family (3)
| 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 |
| 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 |
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- 2012-02-24 JP JP2012038444A patent/JP5899399B2/en active Active
- 2012-12-13 CN CN201280070213.0A patent/CN104159488B/en active Active
- 2012-12-13 WO PCT/JP2012/007970 patent/WO2013124939A1/en active Application Filing
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| JPS5535124A (en) * | 1978-09-04 | 1980-03-12 | Tokyo Electric Co Ltd | Vacuum cleaner |
| GB2069825A (en) * | 1980-02-19 | 1981-09-03 | Shop Vac Corp | Sound dome for electric vacuum cleaner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106466151A (en) * | 2015-08-18 | 2017-03-01 | Lg电子株式会社 | Suction apparatus |
| CN106466151B (en) * | 2015-08-18 | 2019-03-12 | Lg电子株式会社 | Suction apparatus |
| CN108397273A (en) * | 2017-02-06 | 2018-08-14 | 福特环球技术公司 | Cooling fan for engine-cooling system |
| CN108397273B (en) * | 2017-02-06 | 2022-04-29 | 福特环球技术公司 | Cooling fan for engine cooling system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013124939A1 (en) | 2013-08-29 |
| CN104159488B (en) | 2016-08-24 |
| JP5899399B2 (en) | 2016-04-06 |
| JP2013172807A (en) | 2013-09-05 |
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