CN106051872B - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
- Publication number
- CN106051872B CN106051872B CN201610591711.XA CN201610591711A CN106051872B CN 106051872 B CN106051872 B CN 106051872B CN 201610591711 A CN201610591711 A CN 201610591711A CN 106051872 B CN106051872 B CN 106051872B
- Authority
- CN
- China
- Prior art keywords
- strainer
- noise elimination
- sound
- range hood
- air inlet
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- 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
-
- 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
-
- 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
- F24C15/2035—Arrangement or mounting of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a kind of range hood, including exhaust fume collecting hood and the babinet that is arranged above the exhaust fume collecting hood, air inlet is formed on the exhaust fume collecting hood, it is characterised in that：The air inlet is provided with the guide flow noise elimination device extended into the babinet, the guide flow noise elimination device include deflection cone outer layer and be placed in the deflection cone outer layer for noise elimination deflection cone internal layer, the guide flow noise elimination device be in up-small and down-big taper.By extending into the guide flow noise elimination device in babinet in air inlet setting, oil smoke air-flow can be guided along its wall flow, it is possible thereby to reduce the whirlpool in oil smoke air-flow, flow separation, so that the air channel structure in babinet is more reasonable, more smoothly, also eliminate the loss that liquidates that surrounding enters oil smoke air-flow simultaneously, the noise that part is gone out by air inlet conduct radiation can also be eliminated, achievees the purpose that noise reduction.
Description
Technical field
The present invention relates to kitchen appliance, especially a kind of range hood.
Background technology
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family, and usual range hood includes top
Suction and side-suction type, and the range hood of top suction type due to it is clean and tidy light and handy, occupy little space the advantages that, and have more and more extensive
Application.Top-sucking kitchen ventilator generally includes exhaust fume collecting hood, the blower housing on exhaust fume collecting hood, and snail is equipped in blower housing
Shell, impeller and the motor for driving impeller.
The range hood of common top suction type, a kind of suction as disclosed in the Chinese patent application No. is 201410704669.9
Kitchen ventilator includes the exhaust fume collecting hood with inlet scoop, be arranged exhaust fume collecting hood top wind cabinet, the wind with spiral case is set in wind cabinet
Machine forms negative pressure by the effect of wind turbine, while the gas in wind cabinet is discharged to which external oil smoke is sucked cabinet wind cabinet
It is interior, realize the purpose of fume-exhausting.
As people increasingly focus on quality of life, the noise problem of range hood is increasingly taken seriously.Noise
Size be to evaluate an important indicator of range hood quality, and noise and air quantity are two technical indicators contradicted, both
Air quantity is kept, it is a prodigious technical barrier to control noise again.
Two parts of rotational noise and turbulence noise of the noise source of kitchen ventilator substantially from draught fan impeller.Drop at present
The noise of low range hood is mainly or by the way of passive noise reduction, by aerodynamic mode to centrifugal blower, snail
Shell optimizes, but this smoke evacuation air quantity for often leading to range hood reduces, and noise reduction is not fairly obvious.As changing
Into also having by the way of active noise reduction in the prior art.Since the turbulence noise of range hood directly results from centrifugal blower,
It is mainly derived from the air inlet at air inlet of centrifugal fan, if the oil smoke flow in the oil smoke channel before air inlet of centrifugal fan
It is dynamic disorderly and unsystematic, then it can increase the condition of turbulent flow generation, thus cause the noise of range hood larger.
Invention content
The technical problem to be solved by the present invention is in view of the above-mentioned problems of the prior art, providing a kind of effectively reduction
The range hood of noise.
Technical solution is used by the present invention solves above-mentioned technical problem：A kind of range hood, including exhaust fume collecting hood and
Babinet above the exhaust fume collecting hood is set, air inlet is formed on the exhaust fume collecting hood, it is characterised in that：The air inlet is set
It is equipped with the guide flow noise elimination device extended into the babinet, the guide flow noise elimination device includes deflection cone outer layer and is placed in institute
The deflection cone internal layer for noise elimination in deflection cone outer layer is stated, the guide flow noise elimination device is in up-small and down-big taper.
For ease of being guided to the air-flow that surrounding enters, the separation and vortex for entering that air-flow is formed are eliminated, while also disappearing
Except surrounding enters the loss that liquidates of air-flow, the deflection cone outer layer includes side wall, and the side wall is gradually inside from bottom to top
Gather and extends inclinedly.
For ease of eliminating the noise that part is gone out by air inlet conduct radiation, reach noise reduction purpose, the deflection cone outer layer
Side wall on offer multiple perforation, percent opening is 5%~50%, and the deflection cone internal layer is by one layer of deadener or compound disappears
Sound material is made.
Smoothly to guide oil smoke air-flow, the deflection cone outer layer include positioned at the top surface at top, the top surface with
The smooth-sided transition, and the top surface is in the arc to arch upward upwards.
To ensure better water conservancy diversion effect, the flow losses of fan inlet are reduced, it is preferred that the guide flow noise elimination device
Cone angle is α, and 10 °≤α≤130 °.
For ease of oil strain, and convenient for the setting of guide flow noise elimination device, the air inlet lower section is provided with strainer, the filter
The top edge of net is fixed on the air inlet periphery, and the bottom of the guide flow noise elimination device is fixed in the strainer, described
Guide flow noise elimination device below the air inlet by extending into the babinet.
For ease of to oil smoke condensation, separate section grease, being collected simultaneously the oil to drip on the impeller in oil smoke channel, wind turbine
Fat avoids grease from dropping onto in the cookware of lower section, and the strainer is in the middle empty frame shape of top surface opening, and the bottom of the strainer is in flat
Plate offers the hole being longitudinally extended and forms air intake passage on the side of the strainer.
Noise to reduce wind turbine achievees the purpose that noise reduction to external radiation, and sound-absorbing dress is provided in the bottom of the strainer
It sets, the sound arrester includes the sound-absorbing outer layer of trepanning and the sound-absorbing internal layer that is placed in the sound-absorbing outer layer, in the attraction
Layer is made of one layer of deadener or composite sound damping material.
Preferably, be the noise for absorbing different frequency range, obtain better noise reduction, the composite sound damping material include according to
Secondary compound high frequency deadener layer, middle low frequency deadener layer and damping shock absorption material layer.
For ease of collecting the grease in strainer, the bottom rear of the exhaust fume collecting hood is provided with lubricating cup, and the lubricating cup is located at institute
The rear side of strainer is stated, the bottom rear of the strainer offers at least one oil dripping hole.
Compared with the prior art, the advantages of the present invention are as follows：By extending into the water conservancy diversion in babinet in air inlet setting
Silencing apparatus can guide oil smoke air-flow along its wall flow, it is possible thereby to reduce the whirlpool in oil smoke air-flow, flowing point
From so that the air channel structure in babinet is more reasonable, more smoothly, while also eliminating the damage that liquidates that surrounding enters oil smoke air-flow
It loses, the noise that part is gone out by air inlet conduct radiation can also be eliminated, achieve the purpose that noise reduction；It is tablet by the way that bottom is arranged
The strainer of shape, can to oil smoke condensation, separate section grease, be collected simultaneously oil smoke channel, wind turbine impeller on the grease that drips,
Grease is avoided to drop onto in the cookware of lower section；And sound arrester is set in filter screen bottom, the noise of wind turbine can be reduced to external radiation,
Further noise reduction.
Description of the drawings
Fig. 1 is the schematic diagram of the range hood of the present invention；
Fig. 2 is that the range hood of the present invention hides the schematic diagram of babinet front side wall；
Fig. 3 is the front section view of the range hood of the present invention；
Fig. 4 is the side sectional view of the range hood of the present invention；
Fig. 5 is the schematic diagram of the guide flow noise elimination device and oil network of the range hood of the present invention；
Fig. 6 is the decomposition texture schematic diagram of the guide flow noise elimination device and oil network of the range hood of the present invention；
Fig. 7 is the sectional view of the guide flow noise elimination device and oil network of the range hood of the present invention；
Fig. 8 is the sectional view of the composite sound damping material of the range hood of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
Referring to Fig. 1~Fig. 4, a kind of range hood, including exhaust fume collecting hood 1, the babinet 2 that is arranged above exhaust fume collecting hood 1, babinet 2
Inside it is provided with wind turbine 3.Air inlet 11 is offered on exhaust fume collecting hood 1, oil smoke can be aspirated through air inlet by the wind turbine 3 in babinet 2 as a result,
Mouth 11 is discharged into common flue after entering babinet 2.The bottom rear of exhaust fume collecting hood 1 is provided with lubricating cup 6.
Guide flow noise elimination device 4 and strainer 5 are provided at air inlet 11, wherein guide flow noise elimination device 4 is in up-small and down-big cone
Shape is extended into from 11 lower section of air inlet in babinet 2 such as circular cone or side's cone；And strainer 5 is then fixed on 11 lower section of air inlet.
Referring to Fig. 5~Fig. 7, guide flow noise elimination device 4 includes deflection cone outer layer 41 and deflection cone internal layer 42, deflection cone outer layer 41
It is coated on 42 outside of deflection cone internal layer.Each side wall 411 of deflection cone outer layer 41 gradually inwardly gather from bottom to top and in inclining
Tiltedly extend so that the top surface 412 of deflection cone outer layer 41 is less than bottom surface 413, shape, size and the deflection cone of deflection cone internal layer 42
Shape, the size adaptation of outer layer 41.By the way that the guide flow noise elimination device 4 is arranged, oil smoke air-flow can be guided along deflection cone outer layer
41 side wall 411 is entered by air inlet 11 in babinet 2, it is possible thereby to the whirlpool in oil smoke air-flow, flow separation are reduced,
So that the air channel structure in babinet 2 is more reasonable, more smoothly, while also eliminating the damage that liquidates that surrounding enters oil smoke air-flow
It loses.Preferably, it is seamlessly transitted between side wall 411 and top surface 412, and top surface 412 is in the arc to arch upward upwards, it thus can be more
Swimmingly guide oil smoke air-flow.Guide flow noise elimination device 4 is preferred, and height H is 20mm≤H≤280mm.Guide flow noise elimination device 4
Cone angle is α, it is preferred that 10 °≤α≤130 °, it may thereby be ensured that preferably water conservancy diversion effect, reduces the flowing damage of 3 import of wind turbine
It loses.
Multiple perforation 414 are offered on the side wall 411 of deflection cone outer layer 41, percent opening is preferably 5%~50%, passes through
Perforation 414 coordinates with deflection cone internal layer 42, and oil smoke turbulent flow enters deflection cone internal layer 42 by perforation 414, can eliminate part
The noise gone out by 11 conduct radiation of air inlet, reaches noise reduction purpose.It is multiple that deflection cone internal layer 42 can be selected as one or more layers
Deadener is closed, different deadeners is directed to different sound frequency ranges, there can be better sound absorption qualities.
Strainer 5 is in the middle empty frame shape of top surface opening, and 5 top surface of strainer has the first outside flanging 51, so as to solid
It is scheduled on 11 periphery of air inlet on exhaust fume collecting hood 1.The bottom 52 of strainer 5 is in tabular, thus has condensation, separate section to oil smoke
The function of grease, at the same can collect oil smoke channel, wind turbine 3 impeller on the grease that drips, avoid grease from dropping onto lower section
In cookware.Lubricating cup 6 is located at the rear side of strainer 5, and 52 rear side of bottom of strainer 5 offers at least one oil dripping hole 521, in order to enable
Lubricating cup 6 preferably collects grease, and the bottom 52 of strainer 5 tilts gradually downward from front to back, is collected at tablet bottom to may make
The grease in portion 52 is smoothly flowed into lubricating cup 6.The angle of inclination of the bottom 52 of strainer 5 is β, it is preferred that 1 °≤β≤20 °.
On the side of strainer 5, on especially left and right two sides and leading flank, the hole being longitudinally extended is offered to shape
At air intake passage 53, it is preferred that air intake passage 53 is elongated, and oil smoke can enter filter from the four sides air intake passage 53 of strainer 5
5 inside of net, to be entered in babinet 2 by air inlet 11.It can be in order to promote the effect of grease separation, in air intake passage 53
The silk screen of certain pore size is set.
The bottom inside of strainer 5 is provided with sound arrester 54, and sound arrester 54 can be identical as the bottom 52 of strainer 5, all
In tabular, sound arrester 54 has certain thickness and certain sound-absorption coefficient, can reduce the noise of wind turbine 3 to external radiation,
Achieve the effect that noise reduction.Preferably, thickness 10mm≤h≤80mm of sound arrester 54.Likewise, sound arrester 54 includes sound-absorbing
Outer layer 541 and sound-absorbing internal layer 542, sound-absorbing outer layer 541 are microperforated panel, 542 periphery of sound-absorbing internal layer are coated on, for fixing sound-absorbing
Internal layer 542 fixes sound arrester 54 and strainer 5.Sound-absorbing internal layer 542 can also use composite sound damping material.Cooking fume circulates
It crosses microperforated panel 541 and enters sound-absorbing internal layer 542, thus absorbing air-flow reduces noise.
The bottom surface 413 of deflection cone outer layer 41 has outwardly extending first flanging 415, for solid with sound-absorbing outer layer 541
It is fixed, to which guide flow noise elimination device 4 and strainer 5 be fixed.
Referring to Fig. 8, composite sound damping material includes compound successively high frequency deadener layer 71, middle low frequency deadener layer
72 and damping shock absorption material layer 73, microperforated panel may be used as the guard shield of composite sound damping material.Pass through compound different frequencies
Section deadener, can absorb the noise of different frequency range, achieve the effect that noise reduction.
Claims (8)
1. a kind of range hood includes the babinet (2) of exhaust fume collecting hood (1) and setting above the exhaust fume collecting hood (1), the collection
Air inlet (11) is formed on petticoat pipe (1), it is characterised in that：It is provided at the air inlet (11) and extends into the babinet (2)
Interior guide flow noise elimination device (4), the guide flow noise elimination device (4) include deflection cone outer layer (41) and are placed in the deflection cone
The deflection cone internal layer (42) for noise elimination in outer layer (41), the guide flow noise elimination device (4) are in integrally up-small and down-big taper,
The cone angle of the guide flow noise elimination device (4) is α, and 10 °≤α≤130 °；It is provided with strainer below the air inlet (11)
(5), the top edge of the strainer (5) is fixed on the air inlet (11) periphery, and the bottom of the guide flow noise elimination device (4) is solid
It is scheduled in the strainer (5), the guide flow noise elimination device (4) below the air inlet (11) by extending into the babinet (2).
2. range hood as described in claim 1, it is characterised in that：The deflection cone outer layer (41) includes side wall (411), institute
Side wall (411) is stated gradually inwardly to gather from bottom to top and inclinedly extend.
3. range hood as claimed in claim 2, it is characterised in that：It is opened on the side wall (411) of the deflection cone outer layer (41)
Equipped with multiple perforation (414), percent opening is 5%~50%, and the deflection cone internal layer (42) is by one layer of deadener or compound disappears
Sound material is made.
4. range hood as claimed in claim 2, it is characterised in that：The deflection cone outer layer (41) includes positioned at the top at top
Face (412), the top surface (412) seamlessly transit with the side wall (411), and the top surface (412) are in the arc to arch upward upwards
Shape.
5. range hood as described in any one of claims 1 to 4, it is characterised in that：The strainer (5) is in top surface opening
The bottom (52) of middle empty frame shape, the strainer (5) is in tabular, and the hole being longitudinally extended is offered on the side of the strainer (5)
And form air intake passage (53).
6. range hood as claimed in claim 5, it is characterised in that：It is provided with sound-absorbing in the bottom (52) of the strainer (5)
Device (54), the sound arrester (54) include the sound-absorbing outer layer (541) of trepanning and are placed in the sound-absorbing outer layer (541)
Sound-absorbing internal layer (542), the sound-absorbing internal layer (542) is made of one layer of deadener or composite sound damping material.
7. the range hood as described in claim 3 or 6, it is characterised in that：The composite sound damping material includes compound successively
High frequency deadener layer (71), middle low frequency deadener layer (72) and damping shock absorption material layer (73).
8. range hood as claimed in claim 5, it is characterised in that：The bottom rear of the exhaust fume collecting hood (1) is provided with lubricating cup
(6), the lubricating cup (6) is located at the rear side of the strainer (5), is offered on rear side of the bottom (52) of the strainer (5) at least one
Oil dripping hole (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610591711.XA CN106051872B (en) | 2016-07-22 | 2016-07-22 | A kind of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610591711.XA CN106051872B (en) | 2016-07-22 | 2016-07-22 | A kind of range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106051872A CN106051872A (en) | 2016-10-26 |
| CN106051872B true CN106051872B (en) | 2018-07-17 |
Family
ID=57417824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610591711.XA Active CN106051872B (en) | 2016-07-22 | 2016-07-22 | A kind of range hood |
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| Country | Link |
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| CN (1) | CN106051872B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140547A (en) * | 2017-06-27 | 2019-01-04 | 博西华电器（江苏）有限公司 | Range hood |
| CN109595627B (en) * | 2017-09-30 | 2024-01-16 | 宁波方太厨具有限公司 | Fume exhauster |
| CN109780598B (en) * | 2017-11-10 | 2024-01-16 | 宁波方太厨具有限公司 | Fume exhauster |
| CN109780595B (en) * | 2017-11-10 | 2024-01-16 | 宁波方太厨具有限公司 | Fume exhauster |
| CN109780591B (en) * | 2017-11-10 | 2024-01-16 | 宁波方太厨具有限公司 | Fume exhauster |
| 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 |
| CN108547798A (en) * | 2018-04-30 | 2018-09-18 | 许彐琼 | Fan |
| CN108709212B (en) * | 2018-07-11 | 2023-10-20 | 浙江工业大学 | Front silencing and filtering device for range hood |
| CN109011982B (en) * | 2018-08-24 | 2024-02-09 | 城林科技(上海)有限公司 | Oil blocking device with noise reduction function and crescent-shaped pipe grid structure |
| CN110319471A (en) * | 2019-07-19 | 2019-10-11 | 杭州德意电器股份有限公司 | A kind of water conservancy diversion treatment facilities and kitchen ventilator for kitchen ventilator and water conservancy diversion purification method |
| CN112569719B (en) * | 2020-12-21 | 2024-07-02 | 玉环太平洋机械有限公司 | Top suction type oil mist separation purifier |
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| CN205939327U (en) * | 2016-07-22 | 2017-02-08 | 宁波方太厨具有限公司 | Range hood |
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- 2016-07-22 CN CN201610591711.XA patent/CN106051872B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042628A (en) * | 2011-01-10 | 2011-05-04 | 宁波方太厨具有限公司 | Range hood with flow-stabilizing and noise-reducing structure |
| CN102072514A (en) * | 2011-01-20 | 2011-05-25 | 宁波方太厨具有限公司 | Noise reducing method for range hood and low-noise range hood |
| EP2610555A1 (en) * | 2011-12-29 | 2013-07-03 | Indesit Company S.p.A. | Grease filter for a range hood, and related range hood |
| CN203731520U (en) * | 2013-12-31 | 2014-07-23 | 广东奥特龙电器制造有限公司 | Low-noise range hood |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106051872A (en) | 2016-10-26 |
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