CN103697512B - A kind of silence exhauster for removing cooking fumes - Google Patents
A kind of silence exhauster for removing cooking fumes Download PDFInfo
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- CN103697512B CN103697512B CN201310627547.XA CN201310627547A CN103697512B CN 103697512 B CN103697512 B CN 103697512B CN 201310627547 A CN201310627547 A CN 201310627547A CN 103697512 B CN103697512 B CN 103697512B
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- spiral case
- sound
- micropore
- absorbing
- kuppe
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Abstract
The invention discloses a kind of silence exhauster for removing cooking fumes, including casing and the exhaust fume collecting hood with air inlet, it is provided with spiral case in described casing, described spiral case has advance air port and rear air inlet, it is characterized in that, just the position in the advance air port of described spiral case is provided with sound-absorbing kuppe on the front cover plate of described casing, airtight cavity is formed between described sound-absorbing kuppe and front cover plate, the first micropore that multiple and described airtight cavity connects is offered on the rear board relative with advance air port of described sound-absorbing kuppe, it is filled with the first acoustical cotton in described airtight cavity.By just the position in spiral case advance air port being arranged sound-absorbing kuppe, micropore offered by sound-absorbing kuppe, and within it fill acoustical cotton, during absorbable most advance air port radiates outward, low, the noise of high frequency, the reasonable of filling area of aperture, centre-to-centre spacing and the acoustical cotton of micropore is selected, sound-absorbing effect can be strengthened further.
Description
Technical field
The present invention relates to a kind of range hood, especially a kind of silence exhauster for removing cooking fumes.
Background technology
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family, and usual range hood includes that top is inhaled
Formula 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 wider
General application.Top-sucking kitchen ventilator generally includes exhaust fume collecting hood, the blower housing being positioned on exhaust fume collecting hood, peace in blower housing
Equipped with spiral case, impeller and the motor driving impeller.
The air inlet of this range hood is positioned at the side of spiral case, is single admission, and incoming air area is little, and oil extraction smoke is not
It is highly desirable.To this end, the range hood of some both sides air inlets is currently also had been disclosed, such as the Application No. of the applicant
The Chinese patent application of 201110027636.1, discloses a kind of range hood with air-suction double-injection acceleration function, tool
Have cabinet and exhaust fume collecting hood, in cabinet, be provided with spiral case, in spiral case, be provided with impeller and motor, spiral case be provided with advance air port and after
Air inlet, exhaust fume collecting hood smoke-collecting area initiating terminal to advance air port has the first oil smoke passage, and exhaust fume collecting hood smoke-collecting area initiating terminal is to rear
Air inlet has the second oil smoke passage, and the bore of two oil smoke passages tapers into, and is conducive to accelerating air-flow and rises, accelerates
Oil smoke is sucked away, and improves smoke absorption effect.
But, owing to defining two oil smoke passages, oil smoke enters in blower fan from former and later two air inlets, and range hood
Noise be mainly derived from inside centrifugal blower, thus centrifugal blower can by two air inlets outward during work
Radiate bigger noise, in addition it is also necessary to be improved further.
Summary of the invention
The technical problem to be solved is the problem existed for above-mentioned prior art, it is provided that one is greatly reduced makes an uproar
The silence exhauster for removing cooking fumes of sound.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of silence exhauster for removing cooking fumes, including casing and
Having the exhaust fume collecting hood of air inlet, be provided with spiral case in described casing, described spiral case has advance air port and rear air inlet, and it is special
Levying and be, on the front cover plate of described casing, just position to the advance air port of described spiral case is provided with sound-absorbing kuppe, institute
State and between sound-absorbing kuppe and front cover plate, form airtight cavity, described sound-absorbing kuppe relative with advance air port
Offer the first micropore that multiple and described airtight cavity connects on rear board, in described airtight cavity, be filled with first
Acoustical cotton；Described rear board is obliquely installed, and the distance between rear board and front cover plate is from top to bottom gradually reduced, institute
State and between the arranged on left and right sides of rear board and front cover plate, be respectively equipped with end face, described rear board, the upper end of two end faces
Between be provided with top panel, rear board, end face, top panel and front cover plate form described airtight cavity.
In order to improve sound-absorbing effect further, described first micropore is uniformly distributed, and the radius of the first adjacent micropore is R1,
Centre-to-centre spacing between first micropore is t1, 0.126 < R1/t1< 0.282, thus the punching rate of rear board can be maintained at
Between 5%-25%, sound-absorbing effect is good.
In order to improve sound-absorbing effect further, described first acoustical cotton fills up whole described airtight cavity, is conducive to improving
Sound-absorption coefficient, sound-absorbing effect is good.
Described rear board is obliquely installed, and the distance between rear board and front cover plate is from top to bottom gradually reduced, and can make
The footpath, front oil smoke passway obtained between rear board and the advance air port of spiral case tapers into from bottom to top, is conducive to accelerating air-flow
Rise, and guide air-flow to enter the advance air port of spiral case more swimmingly.
The structure of sound-absorbing kuppe, can be preferably to be respectively equipped with between both sides and the front cover plate of described rear board
End face, described rear board, two end faces upper end between be provided with top panel, rear board, end face, top panel and casing
Front shroud forms described airtight cavity.
Fixing with casing for ease of sound-absorbing kuppe, the front end of described top panel has extension in described sound-absorbing kuppe
First flange, the lower end of described rear board has the second flange extending beyond end face lower end, and described sound-absorbing kuppe passes through
First flange and the second flange are connected with front cover plate.
Described spiral case includes spiral case front shroud, spiral case back shroud and is connected between spiral case front shroud and spiral case back shroud
Middle casing, connects between described spiral case front shroud and the lower limb of spiral case back shroud and has that downwardly projecting one-tenth is curved to be blocked
Live the wind deflector of middle casing, by wind deflector, oil smoke passage is divided into front oil smoke passage and rear oil smoke passage, not only plays
The effect of shunting, but also air-flow can be made the most steady with drainage, noise reduction.
In a preferred embodiment of the present invention, described wind deflector includes frontal plane plate, back plane plate, and before being connected to
Cambered plate between surface plate and back plane plate lower limb, described frontal plane plate and back plane plate all towards cambered plate direction in
Tilting, be formed with inner chamber between described wind deflector and the middle casing of spiral case, two oil smoke passages the most gradually subtract
Little, beneficially air-flow accelerates to rise.
For absorbing the noise that down radiates of two oil smoke passages, in one embodiment of the invention, described frontal plane plate and
The second micropore of the inner space formed between multiple and described wind deflector and middle casing, institute is all offered on back plane plate
It is filled with the second acoustical cotton, the second micropore and the second acoustical cotton in stating inner chamber and can absorb the noise of medium and low frequency, medium-high frequency respectively.
In order to improve sound-absorbing effect further, described second micropore is uniformly distributed, and the radius of the second micropore is R2, adjacent
Centre-to-centre spacing between second micropore is t2, 0.126 < R2/t2< 0.282, thus can wearing frontal plane plate and back plane plate
Porosity is maintained between 5%-25%, and sound-absorbing effect is good.
In order to improve sound-absorbing effect further, described second acoustical cotton fills up whole described inner chamber, is conducive to improving sound-absorbing system
Number, sound-absorbing effect is good.
The noise down radiated for oil smoke passage after absorbing, in one embodiment of the invention, described back plane plate is opened
Being provided with multiple second micropore, the inwall of described back plane plate is provided with the second acoustical cotton.
The middle casing of described spiral case is provided with oil dripping mouth, and the back plane plate relevant position of wind deflector offers wears for oil dripping mouth
The oil dripping hole gone out, can be derived the grease remained in spiral case, be guided extremely by the deflector arranged at exhaust fume collecting hood air inlet
In lubricating cup.
Compared with prior art, it is an advantage of the current invention that: lead by arranging sound-absorbing in just position to spiral case advance air port
Stream cover, offers micropore on sound-absorbing kuppe, and within it fills acoustical cotton, and absorbable most advance air port is outward
In Fu She, low, the noise of high frequency；The rear board in advance air port is just obliquely installed by sound-absorbing kuppe, so that
Footpath, front oil smoke passway between the advance air port of rear board and spiral case tapers into from bottom to top, is conducive to accelerating on air-flow
Rise, and guide air-flow to enter the advance air port of spiral case more swimmingly；Spiral case front shroud and spiral case back shroud lower limb it
Between connect have the curved wind deflector sheltering from middle casing of downwardly projecting one-tenth, before being divided into by oil smoke passage by wind deflector
Oil smoke passage and rear oil smoke passage, not only play the effect of shunting, but also air-flow can be made the most flat with drainage, noise reduction
Surely；At least one surface plate of wind deflector offers micropore, suction is set in the inner chamber that wind deflector and middle casing are formed
Sound is cotton, can strengthen the sound-absorbing effect to the noise that former and later two oil smoke passages radiate further.
Accompanying drawing explanation
Fig. 1 is the front view of the range hood of the present invention；
Fig. 2 is the sectional view of first embodiment of the range hood of the present invention；
Fig. 3 is the perspective view of first embodiment of the centrifugal blower of the range hood of the present invention；
Fig. 4 is the perspective view of the sound-absorbing kuppe of the present invention；
Fig. 5 is the side view of the sound-absorbing kuppe of the present invention；
Fig. 6 is the partial elevation view of the rear board of the sound-absorbing kuppe of the present invention；
Fig. 7 is the partial elevation view of the frontal plane plate of the wind deflector of the present invention；
Fig. 8 is the structural representation of first acoustical cotton of the present invention；
Fig. 9 is the structural representation of first embodiment of second acoustical cotton of the present invention；
Figure 10 is the sectional view of second embodiment of the range hood of the present invention；
Figure 11 is the structural representation of second embodiment of the centrifugal blower of the range hood of the present invention；
Figure 12 is the structural representation of second embodiment of second acoustical cotton of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
Seeing Fig. 1-Fig. 3, a kind of silence exhauster for removing cooking fumes, including casing 1 and exhaust fume collecting hood 2, before casing 1 includes casing
Cover plate 11 and rear chassis plate 12, be provided with spiral case 3 in casing 1, is provided with impeller 4 and for driving leaf in spiral case 3
The motor 5 of wheel 4.
Spiral case 3 has advance air port 31 and rear air inlet 32, the front cover plate 11 of casing 1 and advance air port 31 phase
Right, the inner side of front cover plate 11 is fixed with just sound-absorbing kuppe 13 to advance air port 31, sees Fig. 4-Fig. 5, inhales
Sound kuppe 13 includes the rear board 131 relative with advance air port 31 being obliquely installed, between itself and front cover plate 11
Distance be from top to bottom gradually reduced, be respectively equipped with end face 132 between both sides and the front cover plate 11 of rear board 131,
The width of end face 132 is from top to bottom gradually reduced, and front end is in vertically, is close to inside front cover plate 11, end
The rear end in face 132 is inclined, and angle of inclination is consistent with the angle of inclination of rear board 131.131, two end faces of rear board
Being provided with top panel 133 between the upper end of 132, the front end of top panel 133 has the extended in sound-absorbing kuppe 13
One flange 134, the lower end of rear board 131 has the second flange 135 extending beyond end face 132 lower end, thus, inhales
Sound kuppe 13 is connected with front cover plate 11 by the first flange 134 and the second flange 135, and can pass through spiral shell
Nails etc. are fixing.Airtight cavity is formed between sound-absorbing kuppe 13 and front cover plate 11.
Offer the first micropore 1311 that multiple with above-mentioned cavity connects on rear board 131, see Fig. 6, it is preferred that
First micropore 1311 equidistantly arranges, and remembers that the radius of the first micropore 1311 is R1, between the first adjacent micropore 1311
Centre-to-centre spacing be t1, it is preferred that take 0.126 < R1/t1< 0.282, thus the first micropore 1311 can absorb spiral case 3
Advance air port 31 is toward extraradial noise, and the sound-absorbing effect of centering low frequency noise is more obvious, and radius and center
Away from value be preferably 0.126 < R1/t1< 0.282, the punching rate of rear board 131 can be maintained between 5%-25%,
Further improve sound-absorbing effect.
It is filled with the first acoustical cotton in the airtight cavity formed between above-mentioned sound-absorbing kuppe 13 and front cover plate 11
136, see Fig. 8, the first acoustical cotton 136 can be preferably polyurethane foam, and its shape is consistent with the shape of cavity,
Thus fill up whole cavity.First acoustical cotton 136 use polyurethane foam as sound-absorbing material, centering, high frequency noise
Sound-absorbing effect is more obvious, fills up whole cavity and is then conducive to improving sound-absorption coefficient, to improve sound-absorbing effect further.
Connecting between spiral case front shroud 33 and the lower limb of spiral case back shroud 34 of spiral case 3 has downwardly projecting one-tenth curved
Wind deflector 6, this wind deflector 6 thus shelters from the middle case being connected between spiral case front shroud 33 and spiral case back shroud 34
Body 35.Oil smoke passage is divided into front oil smoke passage 7 above and rear oil smoke passage 8 below by wind deflector 6, and front oil smoke leads to
Road 7 is communicated to the advance air port 31 of spiral case 3, and at the spiral case front shroud 33 of spiral case 3 and the front cover of casing 1
Between plate 11, bore tapers into from bottom to top, is thus conducive to accelerating air-flow and rises, and guides air-flow to enter more swimmingly
Enter the advance air port 31 of spiral case 3.Rear oil smoke passage 8 is communicated to the rear air inlet 32 of spiral case 3, front oil smoke passage 7 He
Rear oil smoke passage 8 shares same oil smoke passage to the air inlet of exhaust fume collecting hood below wind deflector 6.
Wind deflector 6 includes frontal plane plate 61, back plane plate 62, and is connected to frontal plane plate 61 and back plane plate 62
Cambered plate 63 between lower limb, frontal plane plate 61 and back plane plate 62 are all inclined towards the direction of middle cambered plate 63.
Shape between the multiple and middle casing 35 of wind deflector 6 and spiral case 3 is all offered on frontal plane plate 61 and back plane plate 62
Second micropore 64 of the inner space become, sees Fig. 7, and the second micropore 64 is preferably uniformly distributed, and remembers the second micropore 64
Radius be R2, the adjacent centre-to-centre spacing between the second micropore 64 is t2, it is preferred that take 0.126 < R2/t2< 0.282,
The perforation structure of frontal plane plate 61 can absorb the noise that front oil smoke passage 7 down radiates, the perforation knot of back plane plate 62
Structure can absorb after the noise that down radiates of oil smoke passage 8, and the sound-absorbing effect of centering low frequency noise is more obvious, and
The value of radius and centre-to-centre spacing is preferably 0.126 < R2/t2< 0.282, can wearing frontal plane plate 61 and back plane plate 62
Porosity is maintained between 5%-25%, further improves sound-absorbing effect.
It is filled with the second acoustical cotton 65 in the inner chamber formed between the middle casing 35 of wind deflector 6 and spiral case 3, sees figure
9, the second acoustical cotton 9 may be used without polyurethane foam, and its shape is consistent with the shape of cavity, thus fills up whole cavity.
Second acoustical cotton 9 use polyurethane foam as sound-absorbing material, centering, high frequency noise sound-absorbing effect more obvious, and
Fill up whole cavity to be then conducive to improving sound-absorption coefficient, to improve sound-absorbing effect further.
The middle casing 35 of spiral case 3 is provided with oil dripping mouth 351, and back plane plate 62 relevant position of wind deflector 6 offers
Oil dripping hole 621, oil dripping mouth 351 stretches out from oil dripping hole 621, can the grease that remain in spiral case 3 derive, by
The deflector 9 that exhaust fume collecting hood 2 air inlet is arranged guides to lubricating cup 10.
Impeller 4 can use the impeller of double air intakes of prior art, disclosed in the document as involved by background technology.
Embodiment two
Seeing Figure 10-Figure 12, in the present embodiment, be with the difference of embodiment one, wind deflector 6 is only rear flat
Offer the second micropore 64 on panel 62, and only inwall at back plane plate 62 is provided with the second acoustical cotton 65, second
The shape of acoustical cotton 65 is consistent with the cavity shape formed above back plane plate 62 inwall to cambered plate 63.
Claims (11)
1. a silence exhauster for removing cooking fumes, including casing (1) and the exhaust fume collecting hood (2) with air inlet, described casing sets in (1)
Spiral case (3), described spiral case (3) is had to have advance air port (31) and rear air inlet (32), it is characterised in that described casing (1)
Just the position in the advance air port (31) of described spiral case (3) is provided with sound-absorbing kuppe (13), described sound-absorbing on front cover plate (11)
Form airtight cavity between kuppe (13) and front cover plate (11), described sound-absorbing kuppe (13) with advance air port (31)
The first micropore (1311) that multiple and described airtight cavity connects is offered on relative rear board (131), described airtight
The first acoustical cotton (136) it is filled with in cavity；Described rear board (131) is obliquely installed, rear board (131) and front cover plate
(11) distance between is from top to bottom gradually reduced, the arranged on left and right sides of described rear board (131) and front cover plate (11) it
Between be respectively equipped with end face (132), described rear board (131), two end faces (132) upper end between be provided with top panel (133),
Rear board (131), end face (132), top panel (133) and front cover plate (11) form described airtight cavity.
2. silence exhauster for removing cooking fumes as claimed in claim 1, it is characterised in that described first micropore (1311) is uniform
Distribution, the radius of the first micropore (1311) is R1, the adjacent centre-to-centre spacing between the first micropore (1311) is t1, 0.126 < R1/
t1<0.282。
3. silence exhauster for removing cooking fumes as claimed in claim 1, it is characterised in that described first acoustical cotton (136) is filled up
Whole described airtight cavity.
4. the silence exhauster for removing cooking fumes as according to any one of claims 1 to 3, it is characterised in that described top panel (133)
Front end have in described sound-absorbing kuppe (13) extend the first flange (134), the lower end of described rear board (131) has
Extending beyond second flange (135) of end face (132) lower end, described sound-absorbing kuppe (13) passes through the first flange (134) and second
Flange (135) is connected with front cover plate (11).
5. the silence exhauster for removing cooking fumes as according to any one of claim 1-3, it is characterised in that described spiral case (3) wraps
Include spiral case front shroud (33), spiral case back shroud (34) and be connected between spiral case front shroud (33) and spiral case back shroud (34)
Middle casing (35), connects between described spiral case front shroud (33) and the lower limb of spiral case back shroud (34) and has downwardly projecting Cheng Qu
The wind deflector (6) sheltering from middle casing (35) of planar.
6. silence exhauster for removing cooking fumes as claimed in claim 5, it is characterised in that described wind deflector (6) includes frontal plane
Plate (61), back plane plate (62), and it is connected to the cambered plate between frontal plane plate (61) and back plane plate (62) lower limb
(63), described frontal plane plate (61) and back plane plate (62) are all inclined towards the direction of cambered plate (63), described wind deflector (6) and
It is formed with inner chamber between the middle casing (35) of spiral case (3).
7. silence exhauster for removing cooking fumes as claimed in claim 6, it is characterised in that described frontal plane plate (61) and back plane
The second micropore of the inner space formed between multiple and described wind deflector (6) and middle casing (35) is all offered on plate (62)
(64), the second acoustical cotton (65) it is filled with in described inner chamber.
8. silence exhauster for removing cooking fumes as claimed in claim 7, it is characterised in that described second micropore (64) is uniformly distributed,
The radius of the second micropore (64) is R2, the adjacent centre-to-centre spacing between the second micropore (64) is t2, 0.126 < R2/t2<0.282。
9. silence exhauster for removing cooking fumes as claimed in claim 7, it is characterised in that described second acoustical cotton (65) is filled up whole
Individual described inner chamber.
10. silence exhauster for removing cooking fumes as claimed in claim 6, it is characterised in that offer on described back plane plate (62)
Multiple second micropore (64), the inwall of described back plane plate (62) is had to be provided with the second acoustical cotton (65).
11. silence exhauster for removing cooking fumes as claimed in claim 6, it is characterised in that the middle casing (35) of described spiral case (3)
Being provided with oil dripping mouth (351), back plane plate (62) relevant position of wind deflector (6) offers the oil dripping passed for oil dripping mouth (351)
Hole (621).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627547.XA CN103697512B (en) | 2013-11-30 | 2013-11-30 | A kind of silence exhauster for removing cooking fumes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627547.XA CN103697512B (en) | 2013-11-30 | 2013-11-30 | A kind of silence exhauster for removing cooking fumes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103697512A CN103697512A (en) | 2014-04-02 |
| CN103697512B true CN103697512B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310627547.XA Ceased CN103697512B (en) | 2013-11-30 | 2013-11-30 | A kind of silence exhauster for removing cooking fumes |
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| Country | Link |
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| CN (1) | CN103697512B (en) |
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| CN103982469B (en) * | 2014-05-21 | 2016-06-29 | 西安交通大学 | A kind of for the denoising draught fan spiral case in smoke exhaust ventilator |
| CN105757744B (en) * | 2014-12-19 | 2017-12-19 | 广东顺德村田电器有限公司 | A kind of air draught purifier used for range hood |
| CN104913360A (en) * | 2015-07-06 | 2015-09-16 | 苏州斯洛莱自动化设备有限公司 | Range hood with noise reduction mask |
| CN105716135B (en) * | 2016-04-14 | 2018-05-01 | 广东美的厨房电器制造有限公司 | Range hood |
| CN106123064A (en) * | 2016-07-14 | 2016-11-16 | 广东美的厨房电器制造有限公司 | Range hood |
| CN106051867A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Filter screen of exhaust hood |
| CN106066055A (en) * | 2016-07-22 | 2016-11-02 | 宁波方太厨具有限公司 | A kind of range hood |
| CN106322474B (en) * | 2016-08-28 | 2019-04-19 | 杭州老板电器股份有限公司 | A kind of water conservancy diversion sound-absorbing solid noise reduction system of kitchen ventilator |
| CN106439961B (en) * | 2016-08-31 | 2018-06-12 | 杭州老板电器股份有限公司 | Side extraction cooking fume extractor denoising device |
| CN106765384A (en) * | 2016-12-15 | 2017-05-31 | 杭州老板电器股份有限公司 | A kind of perforated microstructure low noise lampblack absorber |
| CN106556049A (en) * | 2016-12-15 | 2017-04-05 | 杭州老板电器股份有限公司 | A kind of quiet range hood of big blast permanent wind amount |
| CN107449007A (en) * | 2017-09-15 | 2017-12-08 | 华帝股份有限公司 | A kind of range hood |
| CN107687489A (en) * | 2017-09-22 | 2018-02-13 | 北京天宜上佳新材料股份有限公司 | A kind of brake pad steel back with loose structure and the brake pad with it |
| CN109595632B (en) * | 2017-09-30 | 2023-11-17 | 宁波方太厨具有限公司 | Near-suction type range hood |
| CN107990390B (en) * | 2018-01-22 | 2020-04-07 | 广东美的厨房电器制造有限公司 | Fume exhaust fan |
| 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 |
| CN108332259A (en) * | 2018-05-04 | 2018-07-27 | 杭州老板电器股份有限公司 | Kitchen ventilator and lampblack purifying system |
| CN108731069B (en) * | 2018-07-14 | 2020-06-09 | 佛山市云米电器科技有限公司 | Range hood with noise filtering function bellows |
| CN109236744B (en) * | 2018-10-19 | 2020-07-14 | 西北工业大学 | Volute structure with arc air inlet cone side wall inclined for range hood |
| CN110186082B (en) * | 2019-05-07 | 2024-01-23 | 宁波方太厨具有限公司 | Side-suction type range hood |
| CN111023218B (en) * | 2020-01-03 | 2021-11-26 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| CN114109924B (en) * | 2020-08-28 | 2023-04-14 | 宁波方太厨具有限公司 | Impeller, fan system applying same and range hood |
| CN112283771A (en) * | 2020-10-14 | 2021-01-29 | 青岛海尔智慧厨房电器有限公司 | Smoke collecting hood and range hood |
| CN114811682A (en) * | 2022-03-30 | 2022-07-29 | 宁波方太厨具有限公司 | A subassembly and range hood of making an uproar falls for range hood |
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| FR2911520B1 (en) * | 2007-01-19 | 2009-08-28 | Roblin Sas Soc Par Actions Sim | HOOD ASPIRING FOR KITCHEN |
| CN102042628B (en) * | 2011-01-10 | 2012-08-22 | 宁波方太厨具有限公司 | Range hood with flow-stabilizing and noise-reducing structure |
| IT1404076B1 (en) * | 2011-02-08 | 2013-11-08 | Falmec S P A | INTAKE EQUIPMENT. |
| CN202451244U (en) * | 2012-02-27 | 2012-09-26 | 许成利 | Silencer |
| CN102748787A (en) * | 2012-06-15 | 2012-10-24 | 海尔集团公司 | Low noise range hood equipped with diversion noise reducing acoustical panel |
| CN203628765U (en) * | 2013-11-30 | 2014-06-04 | 宁波方太厨具有限公司 | Mute type range hood |
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2013
- 2013-11-30 CN CN201310627547.XA patent/CN103697512B/en not_active Ceased
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| Publication number | Publication date |
|---|---|
| CN103697512A (en) | 2014-04-02 |
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