CN106051872A - Extractor hood - Google Patents
Extractor hood Download PDFInfo
- Publication number
- CN106051872A CN106051872A CN201610591711.XA CN201610591711A CN106051872A CN 106051872 A CN106051872 A CN 106051872A CN 201610591711 A CN201610591711 A CN 201610591711A CN 106051872 A CN106051872 A CN 106051872A
- Authority
- CN
- China
- Prior art keywords
- filter screen
- range hood
- sound
- layer
- air inlet
- 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
-
- 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 an extractor hood. The extractor hood comprises an exhaust fume collecting hood body and a box body arranged above the exhaust fume collecting hood body, and an air inlet is formed in the exhaust fume collecting hood body. The extractor hood is characterized in that a flow guide silencing device extending into the box body is arranged at the air inlet and comprises a flow guide cone outer layer and a flow guide cone inner layer which is arranged in the flow guide cone outer layer and used for silencing; and the flow guide silencing device is shaped like a big-bottom-down cone. The flow guide silencing device extending into the box body is arranged at the air inlet and can guide exhaust fume to flow along the lateral wall of the flow guide silencing device, so that eddies and flow separation in exhaust fume flow are reduced, and an air channel structure in the box body is more reasonable and smoother. Meanwhile, the hedging loss caused when exhaust fume flow enters from the four sides is eliminated, part of noise conducted and radiated from the air inlet can be eliminated, and the purpose of noise reduction is achieved.
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 clean and tidy light and handy, take up room the advantage such as little, and has more and more extensive
Application.Top-sucking kitchen ventilator generally includes exhaust fume collecting hood, the blower housing being positioned on exhaust fume collecting hood, is provided with snail in blower housing
Shell, impeller and the motor of driving impeller.
The range hood of conventional top suction type, a kind of suction as disclosed in the Chinese patent of Application No. 201410704669.9
Lampblack absorber, including the exhaust fume collecting hood with inlet scoop, is arranged on the wind cabinet on exhaust fume collecting hood top, is arranged on the interior wind with spiral case of wind cabinet
Machine, by the effect of blower fan, forms negative pressure while being discharged by the gas in wind cabinet thus outside oil smoke is sucked cabinet wind cabinet
In, it is achieved the purpose of fume-exhausting.
Increasingly focus on quality of life along with people, the noise problem of range hood the most increasingly comes into one's own.Noise
Size be to evaluate an important indicator of range hood quality, and noise and air quantity are two conflicting technical specifications, both
Air quantity to be kept, controlling noise again is a technical barrier the biggest.
The noise source of lampblack absorber is substantially from the rotational noise of draught fan impeller and two parts of turbulence noise.Fall at present
The noise of low range hood the most still uses the mode of passive noise reduction, by aerodynamic mode to centrifugal blower, snail
Shell is optimized, but this smoke evacuation air quantity often leading to range hood reduces, and noise reduction is the most fairly obvious.As changing
Enter, prior art also has the mode using active noise reduction.Owing to the turbulence noise of range hood directly results from centrifugal blower,
It is mainly derived from the air intake at air inlet of centrifugal fan, if the oil smoke flow in the oil smoke passage before air inlet of centrifugal fan
Dynamic disorderly and unsystematic, then can increase the condition of turbulent flow generation, the noise thus causing range hood is bigger.
Summary of the invention
The technical problem to be solved is the problem existed for above-mentioned prior art, it is provided that a kind of effectively reduction
The range hood of noise.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of range hood, including exhaust fume collecting hood and
It is arranged on the casing above described exhaust fume collecting hood, described exhaust fume collecting hood is formed with air inlet, it is characterised in that: described air inlet sets
Being equipped with the guide flow noise elimination device extended in described casing, described guide flow noise elimination device includes deflection cone outer layer and is placed in institute
Stating the deflection cone internal layer for noise elimination in deflection cone outer layer, described guide flow noise elimination device is up-small and down-big taper.
Air-flow for ease of entering surrounding guides, and eliminates and enters separation and the vortex that air-flow is formed, also disappears simultaneously
Except surrounding enters the loss that liquidates of air-flow, described deflection cone outer layer includes sidewall, and described sidewall is the most inside to top by bottom
Gather and extend inclinedly.
For ease of eliminating the noise that part is gone out by air inlet conduct radiation, reach noise reduction purpose, described deflection cone outer layer
Sidewall on offer multiple perforation, percent opening is 5%～50%, and described deflection cone internal layer is by one layer of deadener or compound disappears
Sound material is made.
For smoothly guiding oil smoke air-flow, described deflection cone outer layer includes the end face being positioned at top, described end face with
Described smooth-sided transition, and described end face is in the arc upwards arched upward.
For guaranteeing more preferable water conservancy diversion effect, reduce the flow losses of fan inlet, it is preferred that described guide flow noise elimination device
Cone angle is α, and 10 °≤α≤130 °.
For ease of oil strain, and it is easy to the setting of guide flow noise elimination device, below described air inlet, is provided with filter screen, described filter
The top edge of net is fixed on described air inlet periphery, and the bottom of described guide flow noise elimination device is fixed in described filter screen, described
Guide flow noise elimination device is extended in described casing by below described air inlet.
For ease of to oil smoke condensation, separate section oils and fats, collecting the oil dripped on the impeller of oil smoke passage, blower fan simultaneously
Fat, it is to avoid drip of grease is fallen in the pan of lower section, and described filter screen is the middle empty frame shape of end face opening, the bottom of described filter screen is in flat
Tabular, the side of described filter screen offers the hole of longitudinal extension and forms air intake passage.
For reduce blower fan noise to external radiation, reach the purpose of noise reduction, be provided with in the bottom of described filter screen sound-absorbing dress
Putting, described sound arrester includes the sound-absorbing outer layer of perforate and is placed in the sound-absorbing internal layer in described sound-absorbing outer layer, in described attraction
Layer is made up of one layer of deadener or composite sound damping material.
Preferably, for absorbing the noise of different frequency range, it is thus achieved that preferably noise reduction, described composite sound damping material includes depending on
Secondary compound high frequency deadener layer, medium and low frequency deadener layer and damping shock absorption material layer.
For ease of collecting the oils and fats in filter screen, the bottom rear of described exhaust fume collecting hood is provided with lubricating cup, and described lubricating cup is positioned at institute
Stating the rear side of filter screen, the bottom rear of described filter screen offers at least one oil dripping hole.
Compared with prior art, it is an advantage of the current invention that: by arranging, in air inlet, the water conservancy diversion extending in casing
Silencing apparatus, can guide oil smoke air-flow along its wall flow, thus can reduce the whirlpool in oil smoke air-flow, flowing point
From so that the air channel structure in casing is the most reasonable, more smoothly, also eliminates surrounding simultaneously and enters the damage that liquidates of oil smoke air-flow
Lose, it is also possible to eliminate the noise that part is gone out by air inlet conduct radiation, reach the purpose of noise reduction；By arranging bottom for flat board
The filter screen of shape, can collect, to oil smoke condensation, separate section oils and fats, the oils and fats dripped on the impeller of oil smoke passage, blower fan simultaneously,
Drip of grease is avoided to fall in the pan of lower section；And sound arrester is set in filter screen bottom, the noise of blower fan can be reduced to external radiation,
Noise reduction further.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the range hood of the present invention；
Fig. 2 is the schematic diagram that the range hood of the present invention hides casing 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 guide flow noise elimination device and the schematic diagram of oil network of the range hood of the present invention；
Fig. 6 is guide flow noise elimination device and the decomposition texture schematic diagram of oil network of the range hood of the present invention；
Fig. 7 is guide flow noise elimination device and the sectional view of 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.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
See Fig. 1～Fig. 4, a kind of range hood, including exhaust fume collecting hood 1, be arranged on the casing 2 above exhaust fume collecting hood 1, casing 2
Inside it is provided with blower fan 3.Offering air inlet 11 on exhaust fume collecting hood 1, thus, oil smoke can be aspirated through air intake by the blower fan 3 in casing 2
Mouth 11 is discharged into common flue after entering into casing 2.The bottom rear of exhaust fume collecting hood 1 is provided with lubricating cup 6.
Being provided with guide flow noise elimination device 4 and filter screen 5 at air inlet 11, wherein, guide flow noise elimination device 4 is in up-small and down-big cone
Shape, such as circular cone or side's cone, extends in casing 2 below air inlet 11；Filter screen 5 is then fixed on below air inlet 11.
Seeing 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 outside deflection cone internal layer 42.Each sidewall 411 of deflection cone outer layer 41 is the most inwardly gathered and in inclining to top by bottom
Tiltedly extend so that the end face 412 of deflection cone outer layer 41 is less than bottom surface 413, the shape of deflection cone internal layer 42, size and deflection cone
The shape of outer layer 41, size are adaptive.By arranging this guide flow noise elimination device 4, oil smoke air-flow can be guided along deflection cone outer layer
The sidewall 411 of 41, enter in casing 2 by air inlet 11, thus can reduce the whirlpool in oil smoke air-flow, flow separation,
Make the air channel structure in casing 2 the most reasonable, more smoothly, also eliminate surrounding simultaneously and enter the damage that liquidates of oil smoke air-flow
Lose.Preferably, seamlessly transit between sidewall 411 and end face 412, and end face 412 is in the arc upwards arched upward, thus can be more
Guide oil smoke air-flow swimmingly.Preferably, highly H is 20mm≤H≤280mm to guide flow noise elimination device 4.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, the flowing reducing blower fan 3 import is damaged
Lose.
Offering multiple perforation 414 on the sidewall 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 into deflection cone internal layer 42 by perforation 414, can eliminate part
The noise gone out by air inlet 11 conduct radiation, reaches noise reduction purpose.It is multiple that deflection cone internal layer 42 can be chosen as one or more layers
Closing deadener, different deadeners, for different sound frequency ranges, can have more preferable sound absorption qualities.
The filter screen 5 middle empty frame shape in end face opening, filter screen 5 end face has the first outside flanging 51, such that it is able to solid
Air inlet 11 periphery being scheduled on exhaust fume collecting hood 1.The bottom 52 of filter screen 5, in tabular, thus has condensation, separate section to oil smoke
The function of oils and fats, can collect the oils and fats dripped on the impeller of oil smoke passage, blower fan 3 simultaneously, it is to avoid drip of grease falls lower section
In pan.Lubricating cup 6 is positioned at the rear side of filter screen 5, offers at least one oil dripping hole 521 on rear side of the bottom 52 of filter screen 5, so that
Lubricating cup 6 preferably collects oils and fats, and the bottom 52 of filter screen 5 tilts the most gradually downward, thus can make to be collected at the bottom of flat board
The oils and fats in portion 52 is flowed in lubricating cup 6 smoothly.The angle of inclination of the bottom 52 of filter screen 5 is β, it is preferred that 1 °≤β≤20 °.
On the side of filter screen 5, on the most left and right two sides and leading flank, offer the hole of longitudinal extension thus shape
Become air intake passage 53, it is preferred that air intake passage 53 is elongated, and oil smoke can enter into filter from the four sides air intake passage 53 of filter screen 5
Inside net 5, thus entered in casing 2 by air inlet 11.In order to promote the effect that oils and fats separates, permissible in air intake passage 53
The silk screen of certain pore size is set.
The bottom inside of filter screen 5 is provided with sound arrester 54, and sound arrester 54 can be identical, all with the bottom 52 of filter screen 5
In tabular, sound arrester 54 has certain thickness and certain sound-absorption coefficient, can reduce the noise of blower fan 3 to external radiation,
Reach the effect of noise reduction.Preferably, the thickness 10mm≤h≤80mm of sound arrester 54.Same, sound arrester 54 includes sound-absorbing
Outer layer 541 and sound-absorbing internal layer 542, sound-absorbing outer layer 541 is microperforated panel, is coated on sound-absorbing internal layer 542 periphery, is used for fixing sound-absorbing
Internal layer 542, fixes sound arrester 54 with filter screen 5.Sound-absorbing internal layer 542 can also use composite sound damping material.Cooking fume circulates
Cross microperforated panel 541 and enter into sound-absorbing internal layer 542, thus absorb air-flow and reduce noise.
The bottom surface 413 of deflection cone outer layer 41 has outward extending first flanging 415, for solid with sound-absorbing outer layer 541
Fixed, thus guide flow noise elimination device 4 and filter screen 5 are fixed.
Seeing Fig. 8, composite sound damping material includes high frequency deadener layer 71, the medium and low frequency deadener layer being combined successively
72 and damping shock absorption material layer 73, microperforated panel can serve as the guard shield of composite sound damping material.By compound different frequencies
Section deadener, can absorb the noise of different frequency range, reach the effect of noise reduction.
Claims (10)
1. a range hood, including exhaust fume collecting hood (1) and be arranged on described exhaust fume collecting hood (1) top casing (2), described collection
Air inlet (11) it is formed with on petticoat pipe (1), it is characterised in that: described air inlet (11) place is provided with and extends into described casing (2)
Interior guide flow noise elimination device (4), described guide flow noise elimination device (4) includes deflection cone outer layer (41) and is placed in described deflection cone
The deflection cone internal layer (42) for noise elimination in outer layer (41), described guide flow noise elimination device (4) is overall in up-small and down-big taper.
2. range hood as claimed in claim 1, it is characterised in that: described deflection cone outer layer (41) includes sidewall (411), institute
State sidewall (411) the most inwardly to be gathered to top by bottom and extend inclinedly.
3. range hood as claimed in claim 2, it is characterised in that: open on the sidewall (411) of described deflection cone outer layer (41)
Being provided with multiple perforation (414), percent opening is 5%～50%, and described 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: described deflection cone outer layer (41) includes the top being positioned at top
Face (412), described end face (412) seamlessly transits with described sidewall (411), and described end face (412) is in the arc upwards arched upward
Shape.
5. the range hood as according to any one of Claims 1 to 4, it is characterised in that: the cone of described guide flow noise elimination device (4)
Angle is α, and 10 °≤α≤130 °.
6. the range hood as according to any one of Claims 1 to 4, it is characterised in that: described air inlet (11) lower section is arranged
Filter screen (5), the top edge of described filter screen (5) is had to be fixed on described air inlet (11) periphery, described guide flow noise elimination device (4)
Bottom is fixed in described filter screen (5), and described guide flow noise elimination device (4) is extended into described casing by described air inlet (11) lower section
(2) in.
7. range hood as claimed in claim 6, it is characterised in that: the described filter screen (5) the middle empty frame shape in end face opening, institute
State the bottom (52) of filter screen (5) in tabular, the side of described filter screen (5) offers the hole of longitudinal extension and forms air intake and lead to
Road (53).
8. range hood as claimed in claim 7, it is characterised in that: it is provided with sound-absorbing in the bottom (52) of described filter screen (5)
Device (54), in described sound arrester (54) includes the sound-absorbing outer layer (541) of perforate and is placed in described sound-absorbing outer layer (541)
Sound-absorbing internal layer (542), described attraction internal layer (542) is made up of one layer of deadener or composite sound damping material.
9. the range hood as described in claim 3 or 8, it is characterised in that: described composite sound damping material includes being combined successively
High frequency deadener layer (71), medium and low frequency deadener layer (72) and damping shock absorption material layer (73).
10. range hood as claimed in claim 7, it is characterised in that: the bottom rear of described exhaust fume collecting hood (1) is provided with lubricating cup
(6), described lubricating cup (6) is positioned at the rear side of described filter screen (5), and bottom (52) rear side of described filter screen (5) offers 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 true CN106051872A (en) | 2016-10-26 |
| CN106051872B 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051872B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108709212A (en) * | 2018-07-11 | 2018-10-26 | 浙江工业大学 | A kind of preposition noise reduction filter device for range hood |
| CN109011982A (en) * | 2018-08-24 | 2018-12-18 | 城林环保技术（上海）有限公司 | A kind of grid structure of pipe containing crescent with decrease of noise functions blocks oily device |
| CN109140547A (en) * | 2017-06-27 | 2019-01-04 | 博西华电器（江苏）有限公司 | Range hood |
| CN109595627A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of range hood |
| CN109780598A (en) * | 2017-11-10 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of range hood |
| CN109780591A (en) * | 2017-11-10 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of range hood |
| CN109780595A (en) * | 2017-11-10 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of range hood |
| 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 |
| CN112569719A (en) * | 2020-12-21 | 2021-03-30 | 玉环太平洋机械有限公司 | Top suction type oil mist separation purifier |
| CN112762494A (en) * | 2021-02-03 | 2021-05-07 | 杭州老板电器股份有限公司 | Smoke collecting hood and range hood |
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 |
| CN204648377U (en) * | 2015-04-03 | 2015-09-16 | 九阳股份有限公司 | A kind of lampblack absorber of high-efficiency condensation |
| CN205939327U (en) * | 2016-07-22 | 2017-02-08 | 宁波方太厨具有限公司 | Range hood |
-
2016
- 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 |
| CN204648377U (en) * | 2015-04-03 | 2015-09-16 | 九阳股份有限公司 | A kind of lampblack absorber of high-efficiency condensation |
| CN205939327U (en) * | 2016-07-22 | 2017-02-08 | 宁波方太厨具有限公司 | Range hood |
Cited By (18)
| 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 |
| CN109595627A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of range hood |
| CN109780595A (en) * | 2017-11-10 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of range hood |
| CN109780595B (en) * | 2017-11-10 | 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 |
| CN109780598A (en) * | 2017-11-10 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of range hood |
| CN109780591A (en) * | 2017-11-10 | 2019-05-21 | 宁波方太厨具有限公司 | A kind of range hood |
| 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 |
| CN108709212A (en) * | 2018-07-11 | 2018-10-26 | 浙江工业大学 | A kind of preposition noise reduction filter device for range hood |
| CN109011982A (en) * | 2018-08-24 | 2018-12-18 | 城林环保技术（上海）有限公司 | A kind of grid structure of pipe containing crescent with decrease of noise functions blocks oily device |
| 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 |
| CN112569719A (en) * | 2020-12-21 | 2021-03-30 | 玉环太平洋机械有限公司 | Top suction type oil mist separation purifier |
| CN112762494A (en) * | 2021-02-03 | 2021-05-07 | 杭州老板电器股份有限公司 | Smoke collecting hood and range hood |
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| Publication number | Publication date |
|---|---|
| CN106051872B (en) | 2018-07-17 |
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