CN106568109A - Noise reducing impeller and range hood applying impeller - Google Patents
Noise reducing impeller and range hood applying impeller Download PDFInfo
- Publication number
- CN106568109A CN106568109A CN201610997146.7A CN201610997146A CN106568109A CN 106568109 A CN106568109 A CN 106568109A CN 201610997146 A CN201610997146 A CN 201610997146A CN 106568109 A CN106568109 A CN 106568109A
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- China
- Prior art keywords
- noise reduction
- front side
- impeller
- hole
- blade
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a noise reducing impeller and a range hood applying the impeller. The noise reducing impeller is provided with a noise reducing hole in a front side blade of a middle disc; a fan intake port of the range hood is a back intake port formed in a volute back side plate; a volute front side plate is provided with a front ventilation port communicated with a fan exhaust port; the front ventilation port and the back intake port are separated through the middle disc of the noise reducing impeller; and a noise reducing cavity communicated with the front ventilation port is formed in front of the fan or in front of and below the fan. The noise reducing impeller is provided with the noise reducing hole in the front side blade of the middle disc for reducing the operation noise; in addition, the range hood adopts a back side intake mode, and the noise reducing cavity is formed in the front side of the fan, so that lampblack can be prevented from sucking by the front ventilation port from the lower side of a hood, the disordered flowing noise of air currents in the front side space of a fan cover is eliminated, and meanwhile, the path of outwards propagating the noise through the front side of the fan cover can be stopped; and under the condition of high resistance of a public flue, the noise reducing cavity also can achieve a pressure relief effect.
Description
Technical field
The present invention relates to a kind of range hood, has the fume-exhausting of the impeller more particularly, to a kind of noise reduction impeller and application
Machine.
Background technology
At present, existing most of European type cooker hood is inside air channel and is not provided with denoising structure, when blower fan rotates
Wait, powerful air-flow easily forms vortex or turbulent flow directly in air channel in the upper space of air inlet, makes range hood
Noise it is higher.Also there is range hood that dividing plate is set in the air inlet of blower fan, make oil smoke that blower fan air intake is entered after dividing plate
Mouthful, dividing plate is set for raising oil filter effect has certain effect, but easily produce the extra noise that air-flow blows dividing plate.In addition,
In prior art also it is disclosed have can noise reduction range hood, the such as (Authorization Notice No. of Patent No. ZL 2009130429746.6
For the U of CN 202350141) Chinese invention patent disclosed in《Rectifying noise-reduction type range hood》, the rectifying noise-reduction type oil suction
Cigarette machine includes centrifugal blower and air channel housing, and centrifugal blower is provided with air inlet and is installed in the housing of air channel, air channel case top
Air channel top board is provided with, in the air channel housing between air channel housing and air inlet of centrifugal fan cowling panel is provided with, and cowling panel is located at
Between centrifugal fan air inlet top and air channel top board.Due to the effect of cowling panel so that flue gas more than air inlet with wind
Turbulent flow cannot be formed in space between road top board, therefore turbulence noise can be reduced, and improve the air draught effect of range hood
Rate.Although the rectifying noise-reduction type range hood after above-mentioned improvement can reduce noise, and noise reduction is obvious not enough.In addition, existing
Some range hoods are also adopted by the air inlet structure of rear air intake, due to these range hoods in order to avoid motor is produced to air intake
Adverse effect, is all placed in the front side portion of blower fan by motor, thus is not easy to impeller and dismantles from front side, is also unfavorable for the later stage of blower fan
Safeguard and spiral case cleaning.
In addition, the air inlet of top-sucking kitchen ventilator is located at the side of spiral case, and single admission is generally adopted, thereby resulted in
Incoming air area is little, oil extraction smoke is less, in order to overcome the defect of single admission, the disclosed suction for having a both sides air inlet in prior art
Lampblack absorber, as Patent No. 201110027636.1 (Authorization Notice No. is CN 102072515A) Chinese invention patent public affairs
Open《A kind of range hood with air-suction double-injection acceleration function》, the range hood has cabinet and exhaust fume collecting hood, in cabinet
Spiral case is provided with, impeller and motor are provided with spiral case, spiral case is provided with advance air port and rear air inlet, exhaust fume collecting hood smoke-collecting area initiating terminal
To advance air port have the first oil smoke passage, exhaust fume collecting hood smoke-collecting area initiating terminal to rear air inlet have the second oil smoke passage, two
The bore of oil smoke passage is tapered into, and is conducive to accelerating air-flow to rise, and accelerates oil smoke to be sucked away, so as to improve smoke absorption effect.
However, due to defining two oil smoke passages, oil smoke is entered in blower fan from former and later two air inlets, and the noise master of range hood
Will be inside centrifugal blower, thus centrifugal blower can be larger toward external radiation by two air inlets during work
Noise.
The content of the invention
First technical problem to be solved by this invention is for above-mentioned state of the art, there is provided a kind of structure letter
Single, the noise reduction impeller of excellent noise reduction effect.
Second technical problem to be solved by this invention is to be directed to above-mentioned state of the art, there is provided one kind can be in blower fan
Rear side air intake and on front side of blower fan formed noise reduction cavity noise reduction range hood.
The present invention solve technical scheme that above-mentioned first technical problem adopted for：The noise reduction impeller, including mid-game and
Blade in mid-game, the blade includes the front side blade on front side of mid-game and the rear side leaf on rear side of mid-game
Piece, it is characterised in that：Noise reduction hole is provided with described front side blade.
In order to obtain more preferable noise reduction, the noise reduction hole lines up along the length direction of front side blade, and one
Arrangement row in three row noise reduction holes is at least distributed with the individual front side blade.
Further preferably, the front side blade has the hole in maximum, the middle noise reduction hole in the aperture for being arranged in two noise reduction hole
The first noise reduction hole arrangement row that the aperture in footpath minimum and noise reduction hole is gradually reduced from two to centre, the front side blade also has
Be arranged in minimum, the middle noise reduction hole in aperture in two noise reduction hole aperture is maximum and aperture of noise reduction hole from centre to two gradually
The the second noise reduction hole arrangement row for reducing, and arrangement row in the first noise reduction hole alternates distribution with the second noise reduction hole arrangement row.
Further preferably, the first noise reduction hole arrangement row and the second noise reduction hole arrange the aperture in the adjacent noise reduction hole in row
It is distributed in arithmetic progression.So, by regular perforate on the blade of mid-game front side, different pore size noise reduction hole is in diverse location
Distribution, advantageously reduces various frequency noises.
Further preferably, length of the length of the front side blade less than rear side blade.
Further preferably, the front side blade is arranged with the rear side blade split.Certainly, impeller blade can also be adopted
Integrative-structure.
The present invention solve technical scheme that above-mentioned second technical problem adopted for：The application has above-mentioned noise reduction impeller
Range hood, including blower fan, blower hood and the exhaust fume collecting hood below blower hood, it is characterised in that：The blower fan includes
There are spiral case, noise reduction impeller and drive the motor of noise reduction impeller, the spiral case has spiral case back side panel and spiral case front side board, described
The air inlet of blower fan is the rear air inlet on the spiral case back side panel, is provided with the spiral case front side board and blower fan air-out
The front vent that mouth is connected, the front vent is mutually intercepted with the rear air inlet by the mid-game of the noise reduction impeller,
The front of the blower fan or in the front of blower fan and the noise reduction cavity being connected with the front vent formed below.
Further preferably, it is provided with deflector below the blower fan, the deflector, encloses between spiral case and blower hood
The described noise reduction cavity of synthesis.After deflector is set, the oil smoke in exhaust fume collecting hood can be quickly introduced in draught fan impeller, deflector is not
Only with guiding oil fume, and can cooperatively form after noise reduction cavity with spiral case, blower hood, moreover it is possible to play a part of noise reduction.
Deflector can have various mounting structures, it is preferable that from front to back level is arranged obliquely the deflector, water conservancy diversion
The front side edge of plate is fixed on the front shroud of blower hood, and the back side edge of deflector is fixed on described spiral case back side panel.
In order to further reduce noise, in the noise reduction intracavity acoustical cotton is filled with.It is of course also possible to set in noise reduction intracavity
Put other acoustic damping materials such as filtering orifice plate.
Compared with prior art, it is an advantage of the current invention that：The noise reduction impeller on the front side blade of mid-game by arranging
Noise reduction hole, can reduce the operation noise using the range hood of the noise reduction impeller, in addition, the range hood adopts rear side air intake
Mode, and after noise reduction cavity is set on front side of blower fan, front vent can be avoided from exhaust fume collecting hood lower section suction oil smoke, eliminate outside blower fan
The disorderly flow noise of cover front space interior air-flow, while the path that noise is outwards propagated by blower hood front side can be blocked,
Also, in the case of the big resistance of common flue, the noise reduction cavity may also operate as pressure release effect so that reversely flow back towards noise reduction intracavity
The flow noise that air-flow is caused is blocked in noise reduction intracavity.
Description of the drawings
Fig. 1 is the structural representation of the noise reduction impeller of the embodiment of the present invention；
Fig. 2 is the structural representation of the mid-game front side blade of impeller shown in Fig. 1；
Fig. 3 is the structural representation of the range hood of the embodiment of the present invention；
Fig. 4 is the sectional view of range hood shown in Fig. 3；
Fig. 5 is the structural representation of the blower fan of the embodiment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As depicted in figs. 1 and 2, the noise reduction impeller 5 in the present embodiment includes mid-game 51 and the blade in mid-game, its
In, blade includes the front side blade 52 on front side of mid-game and the rear side blade 53 on rear side of mid-game, front side blade 52 compared with
Short, rear side blade 53 is longer, and front side blade 52 and rear side blade 53 can also adopt Split type structure using integrative-structure.
Noise reduction hole 54 is provided with the blade 52 of front side, noise reduction hole 54 lines up along the length direction of front side blade 52, and a front side
At least be distributed with blade 52 three rows make an uproar hole arrangement row.
In the present embodiment, a front side blade 52 is provided with five elements' noise reduction hole arrangement row.Front side blade 52 have be arranged in
What the aperture of the aperture maximum in two noise reduction hole, the aperture minimum in middle noise reduction hole and noise reduction hole was gradually reduced from two to centre
First noise reduction hole arranges row a, and front side blade 52 also has the aperture in minimum, the middle noise reduction hole in aperture for being arranged in two noise reduction hole
The aperture in maximum and noise reduction hole arranges row b, and the first noise reduction hole arrangement row a from middle the second noise reduction hole being gradually reduced to two
Distribution is alternateed with the second noise reduction hole arrangement row b.Also, the first noise reduction hole is arranged in row a and the second noise reduction hole arrangement row b
The aperture in adjacent noise reduction hole 54 is distributed in arithmetic progression.The noise reduction hole 54 of front side blade 52 is adopted after said structure, different holes
Footpath noise reduction hole 54 is distributed in diverse location, advantageously reduces various frequency noises.
As shown in Figures 3 to 5, noise reduction range hood includes blower fan 1, blower hood 2 and exhaust fume collecting hood 3, wind in the present embodiment
In blower hood 2, exhaust fume collecting hood 3 is located at the lower section of blower hood 2 for machine 1.Blower fan 1 includes spiral case 4, noise reduction impeller 5 and drives
The motor 6 of the noise reduction impeller 5, spiral case has spiral case back side panel 41 and spiral case front side board 42.It is with direction shown in arrow A in Fig. 4
Backward, rear air inlet 11 is provided with spiral case back side panel 41, vent 12 before being provided with spiral case front side board 42, rear air inlet 11
Mutually intercepted by the mid-game 51 of noise reduction impeller 5 with front vent 12, and rear air inlet 11 and front vent 12 go out with blower fan
Air port 13 is connected.Afflux circle 9 is mounted on rear air inlet 11 and front vent 12, in the afflux circle 9 of rear air inlet 11
On deflection cone 10 is installed, the diameter of the deflection cone 10 gradually increases along air intake direction, also, the center of deflection cone 10 with collection
The center of stream circle 9 coincides, i.e., deflection cone 10 is located at the center of afflux circle 9.
Motor 6 is located at the rear lateral portion of noise reduction impeller 5 and just to deflection cone 10, and motor 6 is fixed on the back of deflection cone 10, and
The external diameter of motor 6 less than or equal to the maximum end of deflection cone 10 diameter, in the present embodiment, the maximum end of deflection cone 10 it is a diameter of
80mm～100mm.So, deflection cone 10 can completely shelter from motor 6, so as to avoid 6 pairs, motor after air inlet mode impact.
It can be seen that, deflection cone 10 had both played a part of the noise at water conservancy diversion noise reduction, reduction afflux circle 9, can be used to fix the electricity of blower fan again
Machine 6.Also, motor 6 is placed in after the rear lateral portion of blower fan 1, noise reduction impeller 5 can be easy to dismantle from front side, and then made after blower fan 1
Phase safeguards and spiral case cleans more convenient.
Deflector 8 is provided with the lower section of blower fan 1, from front to back level is arranged obliquely deflector 8, the front side of deflector 8
While being fixed on the front shroud 21 of blower hood 2, the back side edge of deflector 8 is fixed on spiral case back side panel 41.Deflector 8 is set
Afterwards, the oil smoke in exhaust fume collecting hood 3 can be made to be quickly introduced in noise reduction impeller 5, i.e., deflector 8 serves guiding oil fume, reduces pipe network
The effect of resistance and lifting air performance.
In addition, the noise reduction cavity 7 being connected with front vent 12 is enclosed between deflector 8, spiral case 4 and blower hood 2,
The acoustic damping materials such as acoustical cotton and filtering orifice plate can be installed in noise reduction cavity 7 further to improve noise reduction.Range hood works
When, air-flow sucks the rear lateral portion of noise reduction impeller 5 from the rear air inlet 11 of blower fan, due to rear air inlet 11 and the phase mutual resistance of front vent 12
Every, therefore the air-flow can only flow out from fan outlet 13, also, in the case of the big resistance of common flue, fan outlet
Air-flow at 13 can countercurrently be back to the front side portion of noise reduction impeller 5, and and then be back in noise reduction cavity 7 by front vent 12.By
This is visible, after arranging noise reduction cavity 7, front vent 12 not only can be avoided from the lower section of exhaust fume collecting hood 3 suction oil smoke, eliminates blower hood
The disorderly flow noise of 2 front space interior air-flows, and the path that noise is outwards propagated by the front side of blower hood 2 is blocked, and
In the case of the big resistance of common flue, pressure release effect is may also operate as, reduce the impact noise of air-flow resistance.Jing realities
Test, the range hood in the present embodiment can drop relative to existing advancing air or left and right sides air inlet mode, fan noise
Low 2-4db.
The foregoing is only the preferred embodiment of the present invention, it is noted that for those of ordinary skills,
Under the premise of the principle without departing from the present invention, various remodeling or improvement can be carried out to the present invention, these are regarded as the present invention
Protection domain within.
Claims (10)
1. a kind of noise reduction impeller (5), including mid-game (51) and the blade in mid-game, the blade is included located at mid-game
The front side blade (52) and the rear side blade (53) on rear side of mid-game of front side, it is characterised in that：In described front side blade
(52) noise reduction hole (54) is provided with.
2. noise reduction impeller according to claim 1, it is characterised in that：The noise reduction hole (54) is along front side blade (52)
Length direction lines up, and arrangement row in three row noise reduction holes is at least distributed with a front side blade (52).
3. noise reduction impeller according to claim 2, it is characterised in that：The front side blade (52) is dropped with two is arranged in
First that the aperture of the aperture maximum in hole, the aperture minimum in middle noise reduction hole and noise reduction hole of making an uproar is gradually reduced from two to centre drops
Hole arrangement of making an uproar is gone (a), and the front side blade (52) also has the hole in minimum, the middle noise reduction hole in aperture for being arranged in two noise reduction hole
The aperture in footpath maximum and noise reduction hole is gone (b) from middle the second noise reduction hole arrangement being gradually reduced to two, and the first noise reduction hole row
Row row (a) alternate distribution with the second noise reduction hole arrangement row (b).
4. noise reduction impeller according to claim 3, it is characterised in that：First noise reduction hole arrangement row (a) and the second drop
The aperture in the adjacent noise reduction hole made an uproar in hole arrangement row (b) is distributed in arithmetic progression.
5. noise reduction impeller according to claim 4, it is characterised in that：The length of the front side blade (52) is less than rear side leaf
The length of piece (53).
6. the noise reduction impeller according to any claim in claim 1 to 5, it is characterised in that：The front side blade
(52) arrange with rear side blade (53) split.
7. a kind of range hood using just like noise reduction impeller described in any claim in claim 1 to 6, including blower fan
(1), blower hood (2) and the exhaust fume collecting hood (3) below blower hood, it is characterised in that：The blower fan (1) includes spiral case
(4), the motor (6) of noise reduction impeller (5) and driving noise reduction impeller, the spiral case (4) is with spiral case back side panel (41) and spiral case
Front side board (42), the air inlet of the blower fan (1) is the rear air inlet (11) on the spiral case back side panel (41), described
The front vent (12) being connected with fan outlet (13) is provided with spiral case front side board (42), the front vent (12) with it is described
Rear air inlet (11) is mutually intercepted by the mid-game (51) of the noise reduction impeller (5), in the front of the blower fan (1) or in wind
The front of machine and the noise reduction cavity (7) being connected with the front vent (12) formed below.
8. range hood according to claim 7, it is characterised in that：Deflector is provided with below the blower fan (1)
(8), the deflector (8), described noise reduction cavity (7) is enclosed between spiral case (4) and blower hood (2).
9. range hood according to claim 8, it is characterised in that：From front to back level is obliquely for the deflector (8)
Arrange, the front side edge of deflector (8) is fixed on the front shroud of blower hood (2) (21), and the back side edge of deflector (8) is fixed on
On described spiral case back side panel (41).
10. range hood according to claim 7, it is characterised in that：Acoustical cotton is filled with the noise reduction cavity (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997146.7A CN106568109B (en) | 2016-11-11 | 2016-11-11 | A kind of application has the range hood of noise reduction impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997146.7A CN106568109B (en) | 2016-11-11 | 2016-11-11 | A kind of application has the range hood of noise reduction impeller |
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| Publication Number | Publication Date |
|---|---|
| CN106568109A true CN106568109A (en) | 2017-04-19 |
| CN106568109B CN106568109B (en) | 2019-07-26 |
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ID=58542568
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997146.7A Active CN106568109B (en) | 2016-11-11 | 2016-11-11 | A kind of application has the range hood of noise reduction impeller |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035791A (en) * | 2017-11-27 | 2018-05-15 | 三汽车制造有限公司 | A kind of wind scooper, engine and power-equipment |
| CN108240650A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
| CN108240652A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
| CN108240649A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
| CN108240648A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
| CN108980947A (en) * | 2018-09-27 | 2018-12-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood |
| CN109779969A (en) * | 2019-02-27 | 2019-05-21 | 华帝股份有限公司 | Impeller, fan and range hood with supercharging device |
| CN110094774A (en) * | 2018-01-31 | 2019-08-06 | 宁波方太厨具有限公司 | A kind of noise reducing type range hood |
| CN110822505A (en) * | 2018-08-10 | 2020-02-21 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
| JP2020046174A (en) * | 2019-12-25 | 2020-03-26 | 富士工業株式会社 | Soot capturing device |
| CN113294819A (en) * | 2021-05-31 | 2021-08-24 | 华帝股份有限公司 | Fume exhaust fan |
| CN114483644A (en) * | 2020-11-12 | 2022-05-13 | 佛山市顺德区美的洗涤电器制造有限公司 | Centrifugal impeller, centrifugal fan and range hood |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108240650B (en) * | 2017-10-31 | 2024-01-16 | 宁波方太厨具有限公司 | Variable-frequency noise-reduction air outlet cover of range hood |
| CN108240650A (en) * | 2017-10-31 | 2018-07-03 | 宁波方太厨具有限公司 | A kind of frequency conversion noise reduction outlet housing of range hood |
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