CN206207518U - A kind of noise reduction impeller and application have the range hood of the impeller - Google Patents
A kind of noise reduction impeller and application have the range hood of the impeller Download PDFInfo
- Publication number
- CN206207518U CN206207518U CN201621219134.3U CN201621219134U CN206207518U CN 206207518 U CN206207518 U CN 206207518U CN 201621219134 U CN201621219134 U CN 201621219134U CN 206207518 U CN206207518 U CN 206207518U
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- China
- Prior art keywords
- noise reduction
- impeller
- front side
- hood
- spiral case
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Abstract
A kind of noise reduction impeller and application have a range hood of the impeller, and the 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 the range hood is the rear air inlet on spiral case back side panel, the preceding ventilating opening being connected with fan outlet is provided with spiral case front side board, the preceding ventilating opening is mutually intercepted with rear air inlet by the mid-game of noise reduction impeller, in the front of blower fan or in the front of blower fan and the noise reduction cavity being connected with preceding ventilating opening formed below.The range hood uses rear side air inlet mode, and after setting noise reduction cavity on front side of blower fan, preceding ventilating opening from exhaust fume collecting hood lower section suction oil smoke can be avoided, eliminate the disorderly flow noise of blower hood front space interior air-flow, the path that noise is outwards propagated by blower hood front side can be blocked simultaneously, also, in the case of the big resistance of common flue, the noise reduction cavity may also operate as pressure release effect.
Description
Technical field
The utility model is related to a kind of range hood, the oil suction for having the impeller more particularly, to a kind of noise reduction impeller and application
Cigarette 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 into 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 by entering blower fan air intake after dividing plate
Mouthful, setting dividing plate for improving oil filter effect has certain effect, but easily produces air-flow to blow the extra noise of dividing plate.In addition,
In the prior art also it is disclosed have can noise reduction range hood, such as (Authorization Notice No. of Patent No. ZL 2009130429746.6
Be 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, cowling panel is provided with 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 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, motor is all placed in the front side portion of blower fan, thus is not easy to impeller and dismantled 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 uses single admission, thereby result in
Incoming air area is small, oil extraction smoke is smaller, in order to overcome the defect of single admission, the disclosed suction for having a both sides air inlet in the 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
There is the first oil smoke passage to advance air port, 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 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 foring two oil smoke passages, oil smoke enters 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.
Utility model content
First technical problem to be solved in the utility model is directed to above-mentioned state of the art, there is provided a kind of structure
Simply, the noise reduction impeller of excellent noise reduction effect.
Second technical problem to be solved in the utility model is directed to above-mentioned state of the art, there is provided one kind can be
Blower fan rear side air intake and on front side of blower fan formed noise reduction cavity noise reduction range hood.
The utility model solve technical scheme that above-mentioned first technical problem used for：The noise reduction impeller, including in
Disk and the blade in mid-game, the blade include front side blade on front side of mid-game and on rear side of mid-game after
Lateral lobe piece, it is characterised in that：Blade outer ring or/and inner ring are coated with guard on front side of the mid-game.
Preferably, the front side blade is set with the rear side blade split.Certainly, impeller blade can also be using one
Structure.
Further preferably, length of the length of the front side blade less than rear side blade.
The utility model solve technical scheme that above-mentioned second technical problem used for：The application has above-mentioned noise reduction leaf
The range hood of wheel, including blower fan, blower hood and the exhaust fume collecting hood below blower hood, the blower fan include spiral case,
The motor of noise reduction impeller and driving noise reduction impeller, the spiral case has spiral case back side panel and spiral case front side board, the blower fan
Air inlet is the rear air inlet on the spiral case back side panel, is provided with the spiral case front side board and is connected with fan outlet
Logical preceding ventilating opening, the preceding ventilating opening is mutually intercepted with the rear air inlet by the mid-game of the noise reduction impeller, in the wind
The front of machine or in the front of blower fan and the noise reduction cavity being connected with the preceding ventilating opening 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 can be with guiding oil fume, and after cooperatively forming 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 level is set the deflector 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 further reduce noise, acoustical cotton is filled with the noise reduction cavity.It is of course also possible to be set in noise reduction cavity
Put other acoustic damping materials such as filtering orifice plate.
Compared with prior art, the utility model has the advantage of：The noise reduction impeller the front side blade outer ring of mid-game or/
With inner ring cover guard, guard can alienation air in the flow field of impeller internal so that have Noise Reduction, in addition, the oil suction
Cigarette machine uses rear side air inlet mode, and after setting noise reduction cavity on front side of blower fan, preceding ventilating opening can be avoided to be inhaled from exhaust fume collecting hood lower section
Enter oil smoke, eliminate the disorderly flow noise of blower hood front space interior air-flow, while noise can be blocked by before blower hood
The lateral outer path propagated, also, in the case of the big resistance of common flue, the noise reduction cavity may also operate as pressure release effect, make
The flow noise that the air-flow in noise reduction cavity causes must be reversely flowd back towards to be blocked in noise reduction cavity.
Brief description of the drawings
Fig. 1 is the structural representation of the noise reduction impeller of the utility model embodiment；
Fig. 2 is the structural representation of another noise reduction impeller of the utility model embodiment；
Fig. 3 is the structural representation of the range hood of the utility model embodiment；
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 utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figure 1, the noise reduction impeller 5 in the present embodiment includes mid-game 51 and the blade 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 more long, and front side blade 52 and rear side blade 53 can also use 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 so that have Noise Reduction.
As shown in Fig. 2 guard 54 is coated with the outer ring of front side blade 52, the noise reduction impeller shown in remaining structure and Fig. 1
Structure is identical, herein not reinflated description.
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 4 has spiral case back side panel 41 and spiral case front side board 42, and the noise reduction impeller 5 is using shown in Fig. 1
Noise reduction impeller.Direction shown in arrow A is backward with Fig. 4, rear air inlet 11 is provided with spiral case back side panel 41, before spiral case
Side plate 42 is provided with preceding ventilating opening 12, and rear air inlet 11 is mutually intercepted with preceding ventilating opening 12 by the mid-game 51 of noise reduction impeller 5, and
Rear air inlet 11 and preceding ventilating opening 12 are connected with fan outlet 13.It is respectively mounted on rear air inlet 11 and preceding ventilating opening 12
There is afflux circle 9, deflection cone 10 is installed on the afflux circle 9 of rear air inlet 11, the diameter of the deflection cone 10 is along air intake direction
Gradually increase, also, the center of deflection cone 10 coincides with the center of afflux circle 9, i.e., and 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 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 the influence of air inlet mode after 6 pairs, motor.
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, after motor 6 is placed in into the rear lateral portion of blower fan 1, noise reduction impeller 5 can be easy to be dismantled from front side, and then after making blower fan 1
Phase safeguards and spiral case cleans more convenient.
Deflector 8 is provided with the lower section of blower fan 1, level is set 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.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 preceding ventilating opening 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 preceding ventilating opening 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 preceding ventilating opening 12.By
This is visible, after setting noise reduction cavity 7, can not only avoid preceding ventilating opening 12 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.Through reality
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 preferred embodiment of the present utility model, it is noted that for those of ordinary skill in the art
For, under the premise of principle of the present utility model is not departed from, various remodeling or improvement can be carried out to the utility model, these are equal
It is considered as within protection domain of the present utility model.
Claims (7)
1. a kind of noise reduction impeller (5), including mid-game (51) and the blade in mid-game, the blade are included located at mid-game
The front side blade (52) of front side and the rear side blade (53) on rear side of mid-game, it is characterised in that：In the mid-game (51) front side
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：The front side blade (52) and the rear side blade
(53) split is set.
3. noise reduction impeller according to claim 1, the length of the length less than rear side blade (53) of the front side blade (52)
Degree.
4. it is a kind of apply just like noise reduction impeller described in claim 1 or 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, the blower fan (1) include spiral case (4), noise reduction leaf
Wheel (5) and drive noise reduction impeller motor (6), the spiral case (4) 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), in the spiral case front side board
(42) the preceding ventilating opening (12) being connected with fan outlet (13) is provided with, the preceding ventilating opening (12) and the rear air inlet
(11) mutually intercepted by the mid-game (51) of the noise reduction impeller (5), in the front or the front in blower fan of the blower fan (1)
And the noise reduction cavity (7) being connected with the preceding ventilating opening (12) formed below.
5. range hood according to claim 4, 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).
6. range hood according to claim 5, it is characterised in that：Level is obliquely from front to back for the deflector (8)
Set, 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).
7. range hood according to claim 4, 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 |
|---|---|---|---|
| CN201621219134.3U CN206207518U (en) | 2016-11-11 | 2016-11-11 | A kind of noise reduction impeller and application have the range hood of the impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219134.3U CN206207518U (en) | 2016-11-11 | 2016-11-11 | A kind of noise reduction impeller and application have the range hood of the impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206207518U true CN206207518U (en) | 2017-05-31 |
Family
ID=58753147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621219134.3U Withdrawn - After Issue CN206207518U (en) | 2016-11-11 | 2016-11-11 | A kind of noise reduction impeller and application have the range hood of the impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206207518U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN107726396A (en) * | 2017-10-27 | 2018-02-23 | 杭州老板电器股份有限公司 | A kind of range hood of rectifying noise-reduction |
| 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 |
| CN108317564A (en) * | 2018-01-30 | 2018-07-24 | 美的集团股份有限公司 | Fume extractor |
| CN108534202A (en) * | 2018-06-14 | 2018-09-14 | 杭州老板电器股份有限公司 | Impeller, wind turbine and kitchen ventilator |
| CN111664117A (en) * | 2020-06-08 | 2020-09-15 | 华帝股份有限公司 | Intelligent adjustment's impeller device, fan and range hood |
-
2016
- 2016-11-11 CN CN201621219134.3U patent/CN206207518U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN106482187B (en) * | 2016-11-11 | 2019-02-15 | 宁波方太厨具有限公司 | A kind of application has the range hood of noise reduction impeller |
| CN107726396A (en) * | 2017-10-27 | 2018-02-23 | 杭州老板电器股份有限公司 | A kind of range hood of rectifying noise-reduction |
| 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 |
| 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 |
| CN108317564A (en) * | 2018-01-30 | 2018-07-24 | 美的集团股份有限公司 | Fume extractor |
| CN108534202A (en) * | 2018-06-14 | 2018-09-14 | 杭州老板电器股份有限公司 | Impeller, wind turbine and kitchen ventilator |
| CN111664117A (en) * | 2020-06-08 | 2020-09-15 | 华帝股份有限公司 | Intelligent adjustment's impeller device, fan and range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170531 Effective date of abandoning: 20190215 |
|
| AV01 | Patent right actively abandoned |