CN110206761A - Composite broadband silencer for range hood and range hood - Google Patents
Composite broadband silencer for range hood and range hood Download PDFInfo
- Publication number
- CN110206761A CN110206761A CN201811223219.2A CN201811223219A CN110206761A CN 110206761 A CN110206761 A CN 110206761A CN 201811223219 A CN201811223219 A CN 201811223219A CN 110206761 A CN110206761 A CN 110206761A
- Authority
- CN
- China
- Prior art keywords
- noise elimination
- range hood
- wall
- annular
- sound attenuation
- 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.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 43
- 230000003584 silencer Effects 0.000 title claims abstract description 39
- 230000008030 elimination Effects 0.000 claims description 89
- 238000003379 elimination reaction Methods 0.000 claims description 89
- 238000013016 damping Methods 0.000 claims description 35
- 150000001875 compounds Chemical class 0.000 claims description 34
- 239000000779 smoke Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000001228 spectrum Methods 0.000 abstract description 4
- 230000030279 gene silencing Effects 0.000 abstract 5
- 238000010586 diagram Methods 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/665—Sound attenuation by means of resonance chambers or interference
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The composite broadband silencer for the range hood and the range hood comprise a silencer shell and composite silencing structures, wherein the bottom and the top of the silencer shell are respectively provided with an air inlet and an air outlet, two composite silencing structures are arranged in the silencer shell and are arranged in the silencer shell, one composite silencing structure is connected with the air inlet in a matching mode, the other composite silencing structure is connected with the air outlet in a matching mode, the composite broadband silencer is arranged at the air outlet of a range hood of the range hood, the composite silencing structures are arranged in the silencer shell according to the frequency spectrum of the range hood, the sound absorption of high, middle and low full frequency ranges can be achieved, the noise index of the range hood can be remarkably reduced, and the user experience degree is improved.
Description
Technical field
The invention belongs to the technical fields of range hood noise reduction, and in particular to a kind of compound broadband for range hood disappears
Sound device and range hood.
Background technique
The Chinese way of cooking can generate a large amount of oil smoke, and for the health for keeping kitchen environment cleaning and human body, range hood is had become
For one of essential equipment in Modern Family kitchen.But range hood can make a noise in the process of running, and then influence
The culinary art experience of people and health.
Recent years, Wind Volume, big suction concept were promoted mainly always in the smoke machine market of the country, with stepping up for air quantity, inhaled
The noise that kitchen ventilator generates is also increasing.When cooking open range hood just can't hear voice, phone sound, doorbell sound and
Child's sound or even this strong noise can make housewife and kitchen operation personnel generate irritated, headache, and palpitaition etc. is bad anti-
It answers, is used for a long time, physical and mental health can be caused to seriously affect.Therefore, with the raising that people require quality of the life, Yong Hu
When choosing range hood, the noise parameters of range hood are increasingly by the concern of user.
Currently, range hood is mostly used is arranged noise-reducing structure on range hood, but existing noise-reducing structure aperture is single, needle
Pair noise sound wave frequency range compared with residence, noise reduction effect is general.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is intended to provide a kind of compound broadband for range hood
Silencer and range hood.
The technical scheme of the present invention is realized as follows:
The embodiment of the present invention provides a kind of compound broadband silencer for range hood comprising muffler shell is answered
Noise elimination structure is closed, air inlet and air outlet, the composite sound damping structure is respectively set in the bottom and top of the muffler shell
It is arranged two and is arranged in muffler shell, one of them described composite sound damping structure matches connection with air inlet, separately
One composite sound damping structure matches connection with air outlet.
Preferably, the composite sound damping structure includes at least two annular noise elimination walls, cover board, and at least two annulars disappear
Sound wall is spaced setting radially；Cover board of the side setting of at least two annular noise elimination walls for sealing, the other side with
The air inlet or air outlet matching connection；Each annular noise elimination wall offers sound attenuation hole, at least two rings
The aperture of sound attenuation hole in shape noise elimination wall on from the outermost annular noise elimination wall to the innermost annular noise elimination wall according to
It is secondary to successively decrease.
Preferably, described at least two annular noise elimination walls include low frequency annular noise elimination wall, intermediate frequency annular noise elimination wall, high frequency ring
Shape noise elimination wall, the low frequency annular noise elimination wall, intermediate frequency annular noise elimination wall, high-frequency ring noise elimination wall are spaced setting radially；Institute
It states low frequency annular noise elimination wall and is located at outermost, the high-frequency ring noise elimination wall is located at most inner side, and at least two annular is eliminated the noise
The side of wall is connect with cover board, and the other side matches connection with air inlet or air outlet.
Preferably, multiple low frequency sound attenuation holes, the hole of the low frequency sound attenuation hole are uniformly opened up in the low frequency annular noise elimination wall
Diameter is dl, 20mm≤dl≤50mm。
Preferably, multiple intermediate frequency sound attenuation holes, the hole of the intermediate frequency sound attenuation hole are uniformly opened up in the intermediate frequency annular noise elimination wall
Diameter is dm, 5mm≤dm< 20mm.
Preferably, multiple high frequency sound attenuation holes, the hole of the high frequency sound attenuation hole are uniformly opened up in the high-frequency ring noise elimination wall
Diameter is dh, 1mm≤dh< 5mm.
It preferably, further include at least one hush tube, at least one described hush tube is arranged in muffler shell, described
Hush tube it is closed at both ends.
Preferably, the side wall of any one at least one described hush tube be uniformly arranged multiple intermediate frequency sound attenuation holes or
High frequency sound attenuation hole.
Preferably, when the side wall of the hush tube is uniformly arranged multiple intermediate frequency sound attenuation holes, the aperture of the intermediate frequency sound attenuation hole
For dm, 5mm≤dm< 20mm, when the side wall of the hush tube is uniformly arranged multiple high frequency sound attenuation holes, the hole of the high frequency sound attenuation hole
Diameter is dh, 1mm≤dh< 5mm.
The embodiment of the present invention also provides a kind of range hood comprising the answering for range hood as described in above scheme
Broadband muffler, smoke exhauster housing, blower, smoke discharging pipe are closed, the blower is arranged in smoke exhauster housing, described compound
The top of smoke exhauster housing, and the smoke of the air inlet and blower of the compound broadband silencer is arranged in broadband muffler
Mouth is correspondingly connected with, and the smoke discharging pipe is arranged at the air outlet of compound broadband silencer.
Compared with prior art, the wind outlet of the smoke machine of range hood, root is arranged in compound broadband silencer of the invention
Composite sound damping structure is set according to the frequency spectrum of range hood in muffler shell, can be realized the sound absorption of high, normal, basic full frequency band, energy
The noise objective for enough significantly reducing range hood, improves user experience.
Detailed description of the invention
Fig. 1 is structural schematic diagram one of the embodiment of the present invention 1 for the compound broadband silencer of range hood；
Fig. 2 is structural schematic diagram two of the embodiment of the present invention 1 for the compound broadband silencer of range hood；
Fig. 3 is schematic diagram of internal structure one of the embodiment of the present invention 1 for the compound broadband silencer of range hood；
Fig. 4 is section structure diagram of the embodiment of the present invention 1 for the compound broadband silencer of range hood；
Fig. 5 is structure of the embodiment of the present invention 1 for the composite sound damping structure in the compound broadband silencer of range hood
Schematic diagram；
Fig. 6 is schematic diagram of internal structure two of the embodiment of the present invention 1 for the compound broadband silencer of range hood；
Fig. 7 is the embodiment of the present invention 1 for the muffler pipe structure schematic diagram in the compound broadband silencer of range hood；
Fig. 8 is the cross-sectional view of 2 range hood of the embodiment of the present invention.
Appended drawing reference is as follows:
1 --- --- --- air outlet, 2 --- composite sound damping structure, 21 --- ring of air inlet, 12 of muffler shell, 11
Shape noise elimination wall, 211 --- low frequency annular noise elimination wall, 212 --- intermediate frequency annular noise elimination wall, 213 --- high-frequency ring noise elimination wall,
22 --- --- --- hush tube, 4 --- range hood main body, 5 --- smoke machines of sound attenuation hole, 3 of cover board, 23.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment 1
The embodiment of the present invention 1 provides a kind of compound broadband silencer for range hood, as illustrated in fig. 1 and 2, including disappears
Air inlet 11 is arranged in the bottom of sound device shell 1, at least one composite sound damping structure 2, the muffler shell 1, and top is provided
Air port 12, at least one described composite sound damping structure 2 are arranged in muffler shell 1；One of them described composite sound damping structure 2
Bottom connection is matched with air inlet 11, top closed, the top of another composite sound damping structure 2 is matched with air outlet 12
Connection, bottom closing.
With reference to Fig. 3, two composite sound damping structures 2 are set, composite sound damping structure 2 includes at least two in muffler shell 1
Annular noise elimination wall 21, cover board 22, at least two annular noise elimination walls 21 are spaced setting radially.At air inlet 11
For connecting with the smoke outlet of the blower of range hood, the top of outermost annular noise elimination wall 21 is set composite sound damping structure 2
Cover board 22 is set, bottom matches connection with air inlet 11, and the top of the annular noise elimination wall 21 of inside is fixed on cover board 22, bottom position
At air inlet 11.Composite sound damping structure 2 at air outlet 12 is for connecting smoke discharging pipe, outermost annular noise elimination wall
Cover board 22 is arranged in 21 bottom, and top matches connection with air outlet 12, and the bottom of the annular noise elimination wall 21 of inside is fixed on cover board
On 22, top is located at air outlet 12.
The shape for the side that annular noise elimination wall 21 is connect with air inlet 11 is according to the shape of the smoke outlet of the blower of range hood
Shape setting, the smoke outlet of the blower of general range hood be it is rectangular, therefore, composite sound damping structure 2 at air inlet 11
The bottom end of annular noise elimination wall 21 be it is rectangular, top is circle, the side wall of annular noise elimination wall 21 by bottom end the rectangular circle to top
Shape smooth transition.
The side wall of each of composite sound damping structure 2 annular noise elimination wall 21 uniformly opens up multiple sound attenuation holes 23, at least two institutes
State the noise elimination in annular noise elimination wall 21 on from the outermost annular noise elimination wall 21 to the innermost annular noise elimination wall 21
Successively successively decrease in the aperture in hole 23.
Range hood generate noise through air inlet 11 enter this at composite sound damping structure 2, then through air outlet 12 at
It is discharged after 2 noise reduction of composite sound damping structure.Specifically, noise disappears along the inside of innermost annular noise elimination wall 21 and adjacent annular
The gap of sound wall 21 enters, and by the sound attenuation hole 23 of each annular noise elimination wall 21, sends out between sound attenuation hole 23 and muffler shell 1
Raw resonance, the successively sound attenuation hole 23 of the annular noise elimination wall 21 of each of composite sound damping structure 2 along air outlet 12 later, through again
After sound-absorbing, it is discharged along air outlet 12.
According to the noise spectrum of range hood, the aperture of the sound attenuation hole 23 of each annular noise elimination wall 21 is different, outermost
The aperture maximum of the sound attenuation hole 23 of annular noise elimination wall 21 is used to absorb the noise compared with low-frequency range, innermost annular noise elimination wall 21
The aperture minimum of sound attenuation hole 23 is used to absorb the noise of higher frequency band, to realize the sound absorption of high, normal, basic full frequency band.
With reference to Fig. 4,5, annular noise elimination wall 21 specifically includes low frequency annular noise elimination wall 211, intermediate frequency annular noise elimination wall 212, height
The annular noise elimination wall 213 of frequency, low frequency annular noise elimination wall 211, intermediate frequency annular noise elimination wall 212, high-frequency ring noise elimination wall 213 are radially
Interval setting；Low frequency annular noise elimination wall 211 is located at outermost, and high-frequency ring noise elimination wall 213 is located at most inner side, and intermediate frequency annular is eliminated the noise
Wall 212 is located between low frequency annular noise elimination wall 211 and high-frequency ring noise elimination wall 213.
The top of composite sound damping structure 2 at air inlet 11, low frequency annular noise elimination wall 21 is connect with cover board 22, bottom with into
The top of the matching connection of air port 11, intermediate frequency annular noise elimination wall 212 and high-frequency ring noise elimination wall 213 is fixed on cover board 22, bottom
At air inlet 11.
The bottom of composite sound damping structure 2 at air outlet 12, low frequency annular noise elimination wall 21 is connect with cover board 22, top with into
The bottom of the matching connection of air port 11, intermediate frequency annular noise elimination wall 212 and high-frequency ring noise elimination wall 213 is fixed on cover board 22, top
At air outlet 12.
Multiple low frequency sound attenuation holes are uniformly opened up in low frequency annular noise elimination wall 211, the aperture of low frequency sound attenuation hole is dl, 20mm≤
dl≤ 50mm carries out sound-absorbing for the noise to low-frequency range, carries out sound-absorbing specific to 300Hz noise below.
Multiple intermediate frequency sound attenuation holes are uniformly opened up in intermediate frequency annular noise elimination wall 212, the aperture of intermediate frequency sound attenuation hole is dm, 5mm≤dm
< 20mm carries out sound-absorbing for the noise to Mid Frequency, carries out sound-absorbing specific to the noise of 300~800Hz.
Multiple high frequency sound attenuation holes are uniformly opened up in high-frequency ring noise elimination wall 213, the aperture of the high frequency sound attenuation hole is dh,
1mm≤dh< 5mm carries out sound-absorbing for the noise to high band, carries out sound-absorbing specific to the noise of 800~1600Hz.
Range hood generate noise through air inlet 11 enter this at composite sound damping structure 2, then through air outlet 12 at
It is discharged after 2 noise reduction of composite sound damping structure.Specifically, noise is eliminated the noise along the inside of high-frequency ring noise elimination wall 213 and adjacent annular
The gap of wall 21 enters, and by high frequency sound attenuation hole, intermediate frequency sound attenuation hole, low frequency sound attenuation hole, makes noise sound wave in composite sound damping knot
Resonate between structure 2 and muffler shell 1, later successively the low frequency sound attenuation hole of the composite sound damping structure 2 along air outlet 12,
Intermediate frequency sound attenuation hole, high frequency sound attenuation hole are discharged after sound-absorbing again along air outlet 12.
According to the noise spectrum of range hood, low frequency annular noise elimination wall 211, intermediate frequency annular noise elimination wall 212, high-frequency ring disappear
The aperture of the sound attenuation hole 23 of sound wall 213 is different, to realize the sound absorption of high, normal, basic full frequency band.
It further include at least one hush tube 3 with reference to Fig. 6 and 7, at least one described hush tube 3 is arranged in muffler shell 1
It is interior, the hush tube 3 it is closed at both ends.
Since the noise that range hood generates is mostly the noise of medium-high frequency section, it is any at least one hush tube 3
One side wall is uniformly arranged multiple intermediate frequency sound attenuation holes or high frequency sound attenuation hole, and the side wall of hush tube 3 is uniformly arranged multiple intermediate frequencies
When sound attenuation hole, the aperture of intermediate frequency sound attenuation hole is dm, 5mm≤dm< 20mm, the side wall of hush tube 3 are uniformly arranged multiple high frequencies and eliminate the noise
Kong Shi, the aperture of high frequency sound attenuation hole are dh, 1mm≤dh< 5mm.
Specifically, four hush tubes 3 are arranged in the composite sound damping structure 2 at the air outlet 12, wherein three hush tubes 3
Side wall is uniformly arranged multiple intermediate frequency sound attenuation holes, and the aperture of the intermediate frequency sound attenuation hole is dm, 5mm≤dm< 20mm, another noise elimination
The side wall of pipe 3 is uniformly arranged multiple high frequency sound attenuation holes, and the aperture of the high frequency sound attenuation hole is dh, 1mm≤dh< 5mm.
Multiple hush tubes 3 are arranged around composite sound damping structure 2, can further increase the noise reduction effect of the silencer.
Embodiment 2
The embodiment of the present invention 2 provides a kind of range hood, the structure of the range hood, as shown in Figure 8 comprising embodiment
Compound broadband silencer, smoke exhauster housing 4, the blower 5, smoke discharging pipe of range hood are used for described in 1, the blower 5 to be set
It sets in smoke exhauster housing 4, the top of smoke exhauster housing 4 is arranged in the compound broadband silencer, and described compound
The air inlet 11 and the outlet flue of blower 5 of broadband muffler are correspondingly connected with, and the smoke discharging pipe is arranged in compound broadband silencer
Air outlet 12 at.
The working process of this embodiment is as follows: the noise that the blower 5 of range hood generates enters answering at this through air inlet 11
Noise elimination structure 2 is closed, then is discharged after 2 noise reduction of composite sound damping structure at air outlet 12.Specifically, noise is eliminated the noise along high-frequency ring
The inside of wall 213 and the gap of adjacent annular noise elimination wall 21 enter, and are disappeared by high frequency sound attenuation hole, intermediate frequency sound attenuation hole, low frequency
Acoustic aperture makes noise sound wave resonate between composite sound damping structure 2 and muffler shell 1, later successively along air outlet 12
Composite sound damping structure 2 low frequency sound attenuation hole, intermediate frequency sound attenuation hole, high frequency sound attenuation hole, after sound-absorbing again, along air outlet 12 through arranging
Smoke pipeline discharge.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of compound broadband silencer for range hood, which is characterized in that including muffler shell (1), composite sound damping
Structure (2), air inlet (11) and air outlet (12) is respectively set in the bottom and top of the muffler shell (1), described compound
Noise elimination structure (2) is arranged two and is arranged in muffler shell (1), one of them described composite sound damping structure (2) with
Air inlet (11) matching connection, another described composite sound damping structure (2) match connection with air outlet (12).
2. the compound broadband silencer according to claim 1 for range hood, which is characterized in that the composite sound damping
Structure (2) includes at least two annular noise elimination walls (21), cover board (22), and at least two annular noise elimination walls (21) are radially
Interval setting；Cover board (22) of the side setting of at least two annular noise elimination walls (21) for sealing, the other side with it is described
Air inlet (11) or air outlet (12) matching connection；Each annular noise elimination wall (21) offers sound attenuation hole (23), until
It eliminates the noise in few two annular noise elimination walls (21) from the outermost annular noise elimination wall (21) to the innermost annular
Successively successively decrease in the aperture of sound attenuation hole (23) on wall (21).
3. the compound broadband silencer according to claim 2 for range hood, which is characterized in that described at least two
Annular noise elimination wall (21) includes low frequency annular noise elimination wall (211), intermediate frequency annular noise elimination wall (212), high-frequency ring noise elimination wall
(213), the low frequency annular noise elimination wall (211), intermediate frequency annular noise elimination wall (212), high-frequency ring noise elimination wall (213) be radially
Interval setting；The low frequency annular noise elimination wall (211) is located at outermost, and the high-frequency ring noise elimination wall (213) is located at most inner side,
The side of described at least two annular noise elimination walls (21) is connect with cover board (22), the other side and air inlet (11) or air outlet
(12) matching connection.
4. the compound broadband silencer according to claim 3 for range hood, which is characterized in that the low frequency annular
Multiple low frequency sound attenuation holes are uniformly opened up in noise elimination wall (211), the aperture of the low frequency sound attenuation hole is dl, 20mm≤dl≤50mm。
5. the compound broadband silencer according to claim 4 for range hood, which is characterized in that the intermediate frequency annular
Multiple intermediate frequency sound attenuation holes are uniformly opened up in noise elimination wall (212), the aperture of the intermediate frequency sound attenuation hole is dm, 5mm≤dm< 20mm.
6. the compound broadband silencer according to claim 5 for range hood, which is characterized in that the high-frequency ring
Multiple high frequency sound attenuation holes are uniformly opened up in noise elimination wall (213), the aperture of the high frequency sound attenuation hole is dh, 1mm≤dh< 5mm.
7. the compound broadband silencer of range hood is used for described in -6 any one according to claim 1, which is characterized in that also
Including at least one hush tube (3), at least one hush tube (3) setting is in muffler shell (1), the hush tube
(3) closed at both ends.
8. the compound broadband silencer according to claim 7 for range hood, which is characterized in that it is described at least one
The side wall of any one in hush tube (3) is uniformly arranged multiple intermediate frequency sound attenuation holes or high frequency sound attenuation hole.
9. the compound broadband silencer according to claim 7 for range hood, which is characterized in that the hush tube
(3) when side wall is uniformly arranged multiple intermediate frequency sound attenuation holes, the aperture of the intermediate frequency sound attenuation hole is dm, 5mm≤dm< 20mm, it is described
When the side wall of hush tube (3) is uniformly arranged multiple high frequency sound attenuation holes, the aperture of the high frequency sound attenuation hole is dh, 1mm≤dh< 5mm.
10. a kind of range hood, which is characterized in that including being used for range hood as claimed in any one of claims 1 to 9 wherein
Compound broadband silencer, smoke exhauster housing (4), blower (5), smoke discharging pipe, the blower (5) are arranged in smoke exhauster housing
(4) in, compound broadband silencer setting is at the top of smoke exhauster housing (4), and the compound broadband silencer
Air inlet (11) and the outlet flue of blower (5) are correspondingly connected with, and the air outlet of compound broadband silencer is arranged in the smoke discharging pipe
(12) at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223219.2A CN110206761A (en) | 2018-10-19 | 2018-10-19 | Composite broadband silencer for range hood and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811223219.2A CN110206761A (en) | 2018-10-19 | 2018-10-19 | Composite broadband silencer for range hood and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110206761A true CN110206761A (en) | 2019-09-06 |
Family
ID=67779997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811223219.2A Pending CN110206761A (en) | 2018-10-19 | 2018-10-19 | Composite broadband silencer for range hood and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110206761A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905858A (en) * | 2019-11-07 | 2020-03-24 | 宁波方太厨具有限公司 | Fume exhaust fan |
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| JP2007170739A (en) * | 2005-12-21 | 2007-07-05 | Kumagai Gumi Co Ltd | Duct component |
| CN203687138U (en) * | 2013-12-31 | 2014-07-02 | 广东万和电气有限公司 | Range hood with noise-abatement device |
| CN104534532A (en) * | 2014-12-18 | 2015-04-22 | 宁波方太厨具有限公司 | Noise reduction device of range hood |
| CN106050751A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Silencer of range hood |
| CN206001570U (en) * | 2016-08-01 | 2017-03-08 | 陈何燎 | A kind of noise elimination structure used for range hood |
| CN206556093U (en) * | 2017-02-21 | 2017-10-13 | 南京宏润声学科技有限公司 | Smoke exhaust silencer |
| 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 |
| CN108561921A (en) * | 2018-05-31 | 2018-09-21 | 广东美的厨房电器制造有限公司 | Range hood |
| CN209115405U (en) * | 2018-10-19 | 2019-07-16 | 华帝股份有限公司 | Composite broadband silencer for range hood and range hood |
-
2018
- 2018-10-19 CN CN201811223219.2A patent/CN110206761A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170739A (en) * | 2005-12-21 | 2007-07-05 | Kumagai Gumi Co Ltd | Duct component |
| CN203687138U (en) * | 2013-12-31 | 2014-07-02 | 广东万和电气有限公司 | Range hood with noise-abatement device |
| CN104534532A (en) * | 2014-12-18 | 2015-04-22 | 宁波方太厨具有限公司 | Noise reduction device of range hood |
| CN106050751A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Silencer of range hood |
| CN206001570U (en) * | 2016-08-01 | 2017-03-08 | 陈何燎 | A kind of noise elimination structure used for range hood |
| CN206556093U (en) * | 2017-02-21 | 2017-10-13 | 南京宏润声学科技有限公司 | Smoke exhaust silencer |
| 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 |
| CN108561921A (en) * | 2018-05-31 | 2018-09-21 | 广东美的厨房电器制造有限公司 | Range hood |
| CN209115405U (en) * | 2018-10-19 | 2019-07-16 | 华帝股份有限公司 | Composite broadband silencer for range hood and range hood |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905858A (en) * | 2019-11-07 | 2020-03-24 | 宁波方太厨具有限公司 | Fume exhaust fan |
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