CN106482187A - A kind of noise reduction impeller and application have the range hood of this impeller - Google Patents
A kind of noise reduction impeller and application have the range hood of this impeller Download PDFInfo
- Publication number
- CN106482187A CN106482187A CN201610997096.2A CN201610997096A CN106482187A CN 106482187 A CN106482187 A CN 106482187A CN 201610997096 A CN201610997096 A CN 201610997096A CN 106482187 A CN106482187 A CN 106482187A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- impeller
- hood
- spiral case
- front side
- 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.)
- Granted
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Classifications
-
- 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
Abstract
A kind of noise reduction impeller and application have the range hood of this impeller, and this noise reduction impeller blade outer ring or/and inner ring on front side of mid-game are coated with guard, cover can alienation inside air flow field, play Noise Reduction.The air inlet of this range hood is the rear air inlet on spiral case back side panel, the front vent being connected with fan outlet is had on spiral case front side board, this front vent and rear air inlet are mutually intercepted by the mid-game of noise reduction impeller, the front in blower fan or the front in blower fan and the noise reduction cavity being connected with front vent formed below.This range hood adopts rear side air inlet mode, and after setting noise reduction cavity on front side of blower fan, front vent can be avoided to suck oil smoke below exhaust fume collecting hood, eliminate the disorderly flow noise of blower hood front space interior air-flow, the path that noise passes through outwards to propagate on front side of blower hood can be blocked simultaneously, and, in the case of the big resistance of common flue, this noise reduction cavity may also operate as pressure release effect.
Description
Technical field
The present invention relates to a kind of range hood, especially relate to a kind of noise reduction impeller and application has the fume-exhausting of this impeller
Machine.
Background technology
At present, existing major part European type cooker hood in air channel inside and is not provided with denoising structure, when blower fan rotates
Wait, powerful air-flow, directly in air channel, easily forms vortex or turbulent flow in the upper space of air inlet, makes range hood
Noise higher.Also there is range hood that dividing plate is set in the air inlet of blower fan, make oil smoke enter blower fan air intake after dividing plate
Mouthful, setting dividing plate has certain effect for improving oil filter effect, but easily produces the extra noise that air-flow blows dividing plate.In addition,
In prior art also disclosed have can noise reduction range hood, such as Patent No. ZL 2009130429746.6 (Authorization Notice No.
For CN 202350141 U) Chinese invention patent disclosed in《Rectifying noise-reduction type range hood》, this 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
It is provided with air channel top board, be provided with cowling panel in the air channel housing between air channel housing and air inlet of centrifugal fan, and cowling panel is located at
Between centrifugal fan air inlet top and air channel top board.Due to cowling panel effect so that flue gas more than air inlet with wind
Turbulent flow cannot be formed in space between road top board, therefore can reduce turbulence noise, and improve the air draught effect of range hood
Rate.Although, the rectifying noise-reduction type fume-exhausting function after above-mentioned improvement reduces noise, and noise reduction is obvious not enough.In addition, it is 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 produces to air intake
Motor is all placed in the front side portion of blower fan by adverse effect, 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 generally adopt single admission, thereby result in
Incoming air area is little, oil extraction smoke is less, in order to overcome the defect of single admission, the disclosed suction having 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》, this range hood has cabinet and exhaust fume collecting hood, in cabinet
It is provided with spiral case, in spiral case, is provided with impeller and motor, 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, there is the first oil smoke passage, exhaust fume collecting hood smoke-collecting area initiating terminal to rear air inlet has the second oil smoke passage, two
The bore of oil smoke passage tapers into, and being conducive to accelerating air-flow to rise, accelerating oil smoke to be sucked away, thus improving smoke absorption effect.
However, due to defining two oil smoke passages, oil smoke enters in blower fan from former and later two air inlets, and the noise master of range hood
Inside centrifugal blower to be derived from, can be larger toward external radiation by two air inlets during work from this centrifugal blower
Noise.
Content of the invention
First technical problem to be solved by this invention is for above-mentioned state of the art, provides 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 for above-mentioned state of the art, provides 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 solves the technical scheme that adopted of above-mentioned first technical problem：This noise reduction impeller, including mid-game and
It is arranged on the blade in mid-game, described 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：On front side of described mid-game, blade outer ring or/and inner ring are coated with guard.
Preferably, described front side blade and described rear side blade split setting.Certainly, impeller blade can also be using one
Structure.
Further preferably, the length of described front side blade is less than the length of rear side blade.
The present invention solves the technical scheme that adopted of above-mentioned second technical problem：This application has above-mentioned noise reduction impeller
Range hood, including blower fan, blower hood and the exhaust fume collecting hood below blower hood, described blower fan includes spiral case, noise reduction
Impeller and the motor driving noise reduction impeller, described spiral case has spiral case back side panel and spiral case front side board, the air intake of described blower fan
Mouthful it is the rear air inlet on described spiral case back side panel, described spiral case front side board has and is connected with fan outlet
Front vent, this front vent is mutually intercepted by the mid-game of described noise reduction impeller with described rear air inlet, in described blower fan
The noise reduction cavity that front or the front in blower fan and formed below and described front vent are connected.
Further preferably, it is provided with deflector in the lower section of described blower fan, enclose between described deflector, spiral case and blower hood
The described noise reduction cavity of synthesis.After setting deflector, 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 the effect of noise reduction.
Deflector can have multiple mounting structures it is preferable that described deflector level is arranged obliquely from front to back, 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 reduce noise further, it is filled with acoustical cotton in described noise reduction intracavity.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：This noise reduction impeller is in the front side blade outer ring of mid-game or/and interior
Circuit covering guard, guard can alienation air in the flow field of impeller internal, thus having Noise Reduction, in addition, this range hood
Using rear side air inlet mode, and after setting noise reduction cavity on front side of blower fan, front vent can be avoided to suck oil below exhaust fume collecting hood
Cigarette, eliminates the disorderly flow noise of blower hood front space interior air-flow, can block simultaneously noise pass through on front side of blower hood to
The path of outer propagation, and, in the case of the big resistance of common flue, this noise reduction cavity may also operate as pressure release effect so that inverse
Flow back to the flow noise that the air-flow of noise reduction intracavity causes and be blocked in noise reduction intracavity.
Brief description
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 another kind of noise reduction impeller of the embodiment of the present invention；
Fig. 3 is the structural representation of the range hood of the embodiment of the present invention；
Fig. 4 is the sectional view of the range hood using noise reduction impeller shown in Fig. 1；
Fig. 5 is the structural representation of the blower fan of the embodiment of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figure 1, the noise reduction impeller 5 in the present embodiment includes mid-game 51 and the blade being arranged in mid-game, wherein, leaf
Piece 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 is shorter, after
Lateral lobe piece 53 is longer, and front side blade 52 and rear side blade 53 can also adopt Split type structure using integrative-structure.In front side
The inner ring of blade 52 is coated with guard 54.Guard 54 can alienation air in the flow field of impeller internal, thus having Noise Reduction.
As shown in Fig. 2 being coated with guard 54 in the outer ring of front side blade 52, remaining structure and the noise reduction impeller shown in Fig. 1
Structure is identical, the not reinflated description of here.
As shown in Figures 3 to 5, in the present embodiment, noise reduction range hood includes blower fan 1, blower hood 2 and exhaust fume collecting hood 3, wind
, in blower hood 2, exhaust fume collecting hood 3 is below blower hood 2 for machine 1.Blower fan 1 includes spiral case 4, noise reduction impeller 5 and drives
The motor 6 of this noise reduction impeller 5, spiral case 4 has spiral case back side panel 41 and spiral case front side board 42, and this noise reduction impeller 5 adopts shown in Fig. 1
Noise reduction impeller.With in Fig. 4, direction shown in arrow A is backward, is provided with rear air inlet 11, on spiral case back side panel 41 before spiral case
Side plate 42 is provided with front vent 12, and rear air inlet 11 is mutually intercepted by the mid-game 51 of noise reduction impeller 5 with front vent 12, and
Rear air inlet 11 is all connected with fan outlet 13 with front vent 12.Rear air inlet 11 and front vent 12 are respectively mounted
There is afflux circle 9, deflection cone 10 is provided with the afflux circle 9 of rear air inlet 11, the diameter of this deflection cone 10 is along air intake direction
It is gradually increased, and, the center of deflection cone 10 is coincided with the center of afflux circle 9, that is, deflection cone 10 is located at the center of afflux circle 9
Position.
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 is less than or equal to the diameter at the maximum end of deflection cone 10, in the present embodiment, the maximum end of deflection cone 10 a diameter of
80mm～100mm.So, deflection cone 10 can shelter from motor 6 completely, thus avoiding the impact to rear air inlet mode for the motor 6.
It can be seen that, deflection cone 10 had both played water conservancy diversion noise reduction, had reduced the effect of noise at afflux circle 9, can be used to the electricity of fixing blower fan again
Machine 6.And, motor 6 is placed in after the rear lateral portion of blower fan 1, noise reduction impeller 5 can be easy to and dismantle from front side, and then after making blower fan 1
Phase safeguards and spiral case cleaning is more convenient.
It is provided with deflector 8 in the lower section of blower fan 1, level is arranged deflector 8 obliquely from front to back, 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.Setting deflector 8
Afterwards, the oil smoke in exhaust fume collecting hood 3 can be made to be quickly introduced in noise reduction impeller 5, that is, deflector 8 serves guiding oil fume, reduces pipe network
Resistance and the effect of lifting air performance.
In addition, enclosing the noise reduction cavity 7 being connected with front vent 12 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 to improve noise reduction further.Range hood works
When, air-flow sucks noise reduction impeller 5 rear lateral portion 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 this air-flow can only flow out from fan outlet 13, and, 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 is back in noise reduction cavity 7 by front vent 12.By
This is visible, after setting noise reduction cavity 7, front vent 12 not only can be avoided to suck oil smoke from exhaust fume collecting hood 3 lower section, eliminate blower hood
The disorderly flow noise of 2 front space interior air-flows, and block the path that noise passes through the outside propagation in blower hood 2 front side, and
In the case of the big resistance of common flue, may also operate as pressure release effect, reduce the impact noise of air-flow resistance.Through reality
Test, the range hood in the present embodiment can drop with respect 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, the present invention can be carried out with multiple remodeling or improve, these are regarded as the present invention
Protection domain within.
Claims (7)
1. a kind of noise reduction impeller (5), including mid-game (51) with the blade that is arranged in mid-game, described blade includes located at mid-game
Front side front side blade (52) and the rear side blade (53) on rear side of mid-game it is characterised in that：On front side of described mid-game (51)
Blade (52) outer ring or/and inner ring are coated with guard (54).
2. noise reduction impeller according to claim 1 it is characterised in that：Described front side blade (52) and described rear side blade
(53) split setting.
3. noise reduction impeller according to claim 1, the length of described front side blade (52) is less than the length of rear side blade (53)
Degree.
4. a kind of application just like claim 1 or noise reduction impeller described in 2 or 3 range hood it is characterised in that：Including blower fan
(1), blower hood (2) and the exhaust fume collecting hood (3) below blower hood, described blower fan (1) includes spiral case (4), noise reduction leaf
Wheel (5) and the motor (6) driving noise reduction impeller, described spiral case (4) has spiral case back side panel (41) and spiral case front side board (42),
The air inlet of described blower fan (1) is the rear air inlet (11) on described spiral case back side panel (41), in described spiral case front side board
(42) have the front vent (12) being connected with fan outlet (13) on, this front vent (12) and described rear air inlet
(11) mutually intercepted by the mid-game (51) of described noise reduction impeller (5), in front or the front in blower fan of described blower fan (1)
And the noise reduction cavity (7) that formed below and described front vent (12) is connected.
5. range hood according to claim 4 it is characterised in that：It is provided with deflector in the lower section of described blower fan (1)
(8), enclose described noise reduction cavity (7) between described deflector (8), spiral case (4) and blower hood (2).
6. range hood according to claim 5 it is characterised in that：Level is obliquely from front to back for described deflector (8)
Setting, the front side edge of deflector (8) is fixed on the front shroud (21) of blower hood (2), and the back side edge of deflector (8) is fixed on
On described spiral case back side panel (41).
7. range hood according to claim 4 it is characterised in that：It is filled with acoustical cotton in described noise reduction cavity (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997096.2A CN106482187B (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 |
|---|---|---|---|
| CN201610997096.2A CN106482187B (en) | 2016-11-11 | 2016-11-11 | A kind of application has the range hood of noise reduction impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106482187A true CN106482187A (en) | 2017-03-08 |
| CN106482187B CN106482187B (en) | 2019-02-15 |
Family
ID=58272153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997096.2A Active CN106482187B (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 (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355837A (en) * | 2017-08-15 | 2017-11-17 | 芜湖美的厨房电器制造有限公司 | Range hood, impeller assembly and blower fan apparatus for range hood |
| CN107449001A (en) * | 2017-07-31 | 2017-12-08 | 广东美的厨房电器制造有限公司 | Range hood |
| CN108006754A (en) * | 2017-06-26 | 2018-05-08 | 宁波方太厨具有限公司 | Wind turbine and application with filtering function have the range hood of the wind turbine |
| CN108167910A (en) * | 2018-03-12 | 2018-06-15 | 杭州老板电器股份有限公司 | Active active noise reducing device and range hood |
| CN109990350A (en) * | 2017-12-30 | 2019-07-09 | 宁波方太厨具有限公司 | A kind of double stage tandem denoising structure and its range hood |
| CN110186082A (en) * | 2019-05-07 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of side extraction cooking fume extractor |
| CN114109924A (en) * | 2020-08-28 | 2022-03-01 | 宁波方太厨具有限公司 | Impeller, fan system applying same and range hood |
| CN114604408A (en) * | 2022-03-18 | 2022-06-10 | 江南造船(集团)有限责任公司 | Noise reduction assembly for air conditioning system and ship air conditioning system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108006754A (en) * | 2017-06-26 | 2018-05-08 | 宁波方太厨具有限公司 | Wind turbine and application with filtering function have the range hood of the wind turbine |
| CN108006754B (en) * | 2017-06-26 | 2023-12-15 | 宁波方太厨具有限公司 | Fan with filtering capability and range hood with same |
| CN107449001A (en) * | 2017-07-31 | 2017-12-08 | 广东美的厨房电器制造有限公司 | Range hood |
| CN107355837A (en) * | 2017-08-15 | 2017-11-17 | 芜湖美的厨房电器制造有限公司 | Range hood, impeller assembly and blower fan apparatus for range hood |
| CN107355837B (en) * | 2017-08-15 | 2023-08-29 | 芜湖美的厨房电器制造有限公司 | Range hood, impeller assembly for range hood and fan device |
| CN109990350A (en) * | 2017-12-30 | 2019-07-09 | 宁波方太厨具有限公司 | A kind of double stage tandem denoising structure and its range hood |
| CN109990350B (en) * | 2017-12-30 | 2023-11-21 | 宁波方太厨具有限公司 | Double-stage series noise reduction structure and range hood thereof |
| CN108167910A (en) * | 2018-03-12 | 2018-06-15 | 杭州老板电器股份有限公司 | Active active noise reducing device and range hood |
| CN110186082A (en) * | 2019-05-07 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of side extraction cooking fume extractor |
| CN110186082B (en) * | 2019-05-07 | 2024-01-23 | 宁波方太厨具有限公司 | Side-suction type range hood |
| CN114109924A (en) * | 2020-08-28 | 2022-03-01 | 宁波方太厨具有限公司 | Impeller, fan system applying same and range hood |
| CN114604408A (en) * | 2022-03-18 | 2022-06-10 | 江南造船(集团)有限责任公司 | Noise reduction assembly for air conditioning system and ship air conditioning system |
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