CN108954435A - A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator - Google Patents
A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator Download PDFInfo
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- CN108954435A CN108954435A CN201810772843.1A CN201810772843A CN108954435A CN 108954435 A CN108954435 A CN 108954435A CN 201810772843 A CN201810772843 A CN 201810772843A CN 108954435 A CN108954435 A CN 108954435A
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- 238000001914 filtration Methods 0.000 title claims abstract description 106
- 239000000779 smoke Substances 0.000 claims abstract description 29
- 229910003460 diamond Inorganic materials 0.000 claims description 8
- 239000010432 diamond Substances 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000007812 deficiency Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037396 body weight Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
Classifications
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- 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
- F24C15/2021—Arrangement or mounting of control or safety systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Ventilation (AREA)
Abstract
A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator, it is provided with smoke machine main body and can reduce the spiral camber noise filtering device of specific unifrequency noise or multi-frequency noise, spiral camber noise filtering device is assigned in smoke machine body interior.The kitchen ventilator can reach specific unifrequency noise reduction or multi-frequency noise noise reduction by adjusting the combination of the apertures of different through-holes, the edge of through-hole at a distance from the edge minimum range of adjacent through-holes or spiral camber noise filtering device and smoke machine main body.The band can be efficiently used the inner space of kitchen ventilator by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, reached the size design of minimum and reduced overall weight, while can carry out noise reduction at or near blower in noise source.The kitchen ventilator has the advantages that low cost, reliability are high, and can be effectively reduced unifrequency noise and broadband noise.
Description
Technical field
The present invention relates to kitchen ventilator field, in particular to a kind of band is filled by the spiral camber noise filtering of arrangement area distribution
The kitchen ventilator set.
Background technique
It is chronically in the environment of high noisy, the hearing of people is often damaged, and can also be made in the environment of having noise for a long time
At user emotion problem.As people's quality of the life improves, people are also lower and lower to the tolerance of noise.Therefore kitchen ventilator
Noise reduction is also got more and more attention.
Kitchen ventilator noise reduction in the prior art is mostly the reduction that noise is realized by active noise reduction and passive noise reduction mode.
Active noise reduction mode can only act on noise of the frequency within 1000Hz, can only be by passive for the noise greater than 1000Hz
Noise reduction technology processing.And the specific noise frequency of reduction can be arranged in the passive denoising device of the prior art, for not
Same kitchen ventilator, the frequency for the maximum noise that may mainly generate is not and identical, the kitchen ventilator of the prior art, for main
Frequency into noise reduction.
Therefore, in view of the shortcomings of the prior art, providing a kind of band by the spiral camber noise filtering device of arrangement area distribution
Kitchen ventilator it is very necessary to solve prior art deficiency.
Summary of the invention
A kind of band is provided it is an object of the invention to avoid in place of the deficiencies in the prior art by the spiral shell of arrangement area distribution
Revolve the kitchen ventilator of curved surface noise filtering device.The band presses the oil smoke equipment of the spiral camber noise filtering device of arrangement area distribution
There is the advantages of capable of reducing specific unifrequency noise or multi-frequency noise.
Above-mentioned purpose of the invention is realized by following technical measures:
A kind of band is provided by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, is provided with smoke machine main body
With the spiral camber noise filtering device that can reduce specific unifrequency noise or multi-frequency noise, spiral camber noise filtering
Device is assigned in smoke machine body interior.
The spiral camber noise filtering device is distributed with multiple for specific unifrequency noise or multi-frequency noise
Through-hole.
The through-hole is distributed in spiral camber noise filtering device by arrangement region.
Preferably, above-mentioned arrangement region be rounded projections arranged, square arrangement, diamond array or in addition to above-mentioned three kinds arrange
At least one of polygonal arrangement.
Preferably, the aperture of above-mentioned through-hole is defined as d, and d≤30mm.
Preferably, the minimum range between the edge of above-mentioned through-hole and the edge of adjacent through-holes is b, and b is any greater than 0
Value.
Preferably, the d in above-mentioned same arrangement region is unique value, and b is unique value.
Preferably, above-mentioned d is single numerical value or multiple numerical value.
Preferably, above-mentioned b is single numerical value or multiple numerical value.
The present invention by adjusting the aperture of different through-holes, the edge of through-hole and adjacent through-holes edge minimum range or spiral shell
It revolves combination of the curved surface noise filtering device at a distance from smoke machine main body and reaches specific unifrequency noise reduction or multi-frequency noise noise reduction.
Preferably, above-mentioned smoke machine main body is provided with spiral case, and spiral case is assemblied in smoke machine body interior.
Preferably, above-mentioned spiral case is provided with shell, and spiral camber noise filtering device is assemblied in interior of shell, and smoke machine master
The blower of body is assemblied in inside spiral camber noise filtering device.
Preferably, there are gaps between above-mentioned shell and spiral camber noise filtering device, are by the distance definition in gap
H1。
Preferably, above-mentioned spiral case is additionally provided with sound-absorbing part, and the sound-absorbing part is fixed on gap；
The thickness of the sound-absorbing part is defined as H2, and H2≤0.6H1。
Preferably, above-mentioned sound-absorbing part is fiber, PP cotton, polyester fiber, Carbon fibe or porous foam；Or
The sound-absorbing part is porous plate.
Preferably, above-mentioned spiral camber noise filtering device is metal spiral curved surface noise filtering device, plastic spiral song
Face noise filtering device or alloy spiral camber noise filtering device.
Preferably, above-mentioned spiral camber noise filtering device is connected with reinforced structure.
Preferably, above-mentioned reinforced structure is convex closure, recessed packet or reinforcing rib.
Preferably, the thickness of above-mentioned spiral camber noise filtering device is less than 20mm.
Preferably, it is 100Hz~8000Hz that above-mentioned spiral camber noise filtering device, which eliminates noisy frequency range,.
A kind of band of the invention is provided with smoke machine by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution
Main body and the spiral camber noise filtering device that can reduce specific unifrequency noise or multi-frequency noise, spiral camber noise
Filter device is assigned in smoke machine body interior.Spiral camber noise filtering device be distributed with it is multiple for specific unifrequency noise or
The through-hole of multi-frequency noise.A kind of band of the invention presses the oil smoke function of the spiral camber noise filtering device of arrangement area distribution
Enough edge minimum ranges or spiral camber noise mistake by adjusting the aperture of different through-holes, the edge of through-hole and adjacent through-holes
It filters combination of the device at a distance from smoke machine main body and reaches specific unifrequency noise reduction or multi-frequency noise noise reduction.The band presses alignment area
The kitchen ventilator of the spiral camber noise filtering device of domain distribution can efficiently use the inner space of kitchen ventilator, reach minimum
Size design and overall weight is reduced, while can carry out noise reduction at or near blower in noise source.The kitchen ventilator has
The high advantage of low cost, reliability, and can be effectively reduced unifrequency noise and broadband noise.
Detailed description of the invention
Using attached drawing, the present invention is further illustrated, but the content in attached drawing is not constituted to any limit of the invention
System.
Fig. 1 is the spiral camber noise filtering apparatus structure schematic diagram of embodiment 1.
Fig. 2 is the minimum range relationship between the aperture of through-hole and the edge of through-hole and the edge of adjacent through-holes in Fig. 1
Schematic diagram.
Fig. 3 is various arrangement area schematic.
Fig. 4 is the spiral camber noise filtering apparatus structure schematic diagram of embodiment 2.
Fig. 5 is the minimum range relationship between the aperture of through-hole and the edge of through-hole and the edge of adjacent through-holes in Fig. 4
Schematic diagram.
Fig. 6 is the spiral camber noise filtering device and volute structure schematic diagram of embodiment 3.
Fig. 7 is the spiral camber noise filtering device and volute structure schematic diagram of embodiment 4.
Fig. 8 is the spiral camber noise filtering apparatus structure schematic diagram of embodiment 5.
Fig. 1 includes into Fig. 8:
Spiral camber noise filtering device 1, through-hole 11, reinforced structure 12, arrangement region 13,
Shell 2,
Sound-absorbing part 3.
Specific embodiment
Technical solution of the present invention is described further with the following Examples.
Embodiment 1.
A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator, as shown in Figures 1 to 3, setting
There is smoke machine main body and can reduce the spiral camber noise filtering device 1 of specific unifrequency noise or multi-frequency noise, spiral
Curved surface noise filtering device 1 is assigned in smoke machine body interior.Spiral camber noise filtering device 1 is distributed with multiple for specific single-frequency
The through-hole 11 of rate noise or multi-frequency noise.Through-hole 11 is distributed in spiral camber noise filtering device 1 by arrangement region 13.
Arrangement region 13 of the invention be rounded projections arranged, square arrangement, diamond array or in addition to above-mentioned three kinds arrange
Polygonal arrangement.The arrangement region 13 of specific the present embodiment is rounded projections arranged, and arrangement region 13 is set as 12.
The through-hole 11 of the present embodiment is to be conducive to be configured institute by arrangement region 13 by the effect in multiple arrangement regions 13
The frequency for the target noise for needing to eliminate.
The rounded projections arranged of the present embodiment, as shown in figure 1 shown.It should be noted that the rounded projections arranged in the present invention is not
It is confined in Fig. 1, Fig. 3 in C and Fig. 3 shown in D, the arrangement region 13 of any other rounded projections arranged also meets intermediate cam of the present invention
The requirement of shape arrangement, also within the scope of the present invention.
It should be noted that square arrangement of the invention is not limited in Fig. 3 in A and Fig. 3 shown in B, any other multi-party shape
The arrangement region 13 of arrangement also meets the requirement of rectangular shape arrangement in the present invention, also within the scope of the present invention.
It should be noted that diamond array of the invention is not limited in Fig. 3 in E and Fig. 3 shown in F, any other diamond shape row
The arrangement region 13 of column also meets the requirement of diamond array in the present invention, also within the scope of the present invention.
It should be noted that polygonal arrangement of the invention is not limited in Fig. 3 in G and Fig. 3 shown in H, it is any other polygon
The arrangement region 13 of shape arrangement also meets the requirement of polygonal arrangement in the present invention, also within the scope of the present invention.
It should be noted that arrangement region 13 of the invention can be rounded projections arranged, square arrangement, diamond array or remove
One of form of the polygonal arrangement of above-mentioned three kinds of arrangements, or the multiple groups of these four forms are closed, specifically
Embodiment according to the actual situation depending on.
The present invention is by adjusting the aperture of different through-holes 11, the edge of through-hole 11 and the edge minimum range of adjacent through-holes 11
Either spiral camber noise filtering device 1 combines at a distance from smoke machine main body reaches specific unifrequency noise reduction or multi-frequency noise
Noise reduction.
The aperture of through-hole 11 of the invention is defined as d, and d≤30mm.The edge and adjacent through-holes of through-hole 11 of the invention
11 edge minimum range is b, and b is the arbitrary value greater than 0.The d in same arrangement region 13 of the invention is unique value, and b is only
One value.D in the same arrangement region 13 of the present embodiment is unique value, and b is unique value, while two neighboring arrangement region 13
B it is different.Therefore only there is the d of the present embodiment only one value and b to be set as multiple, this example is multi-frequency noise noise-reducing oil
Smoke machine.
In the constant situation of aperture d, the smaller elimination of value of the edge minimum range b at the edge and adjacent through-holes 11 of through-hole 11
Target noise frequency it is bigger.Under the edge of through-hole 11 and the constant situation of edge minimum range b of adjacent through-holes 11, aperture
The smaller target noise frequency to be eliminated of the value of d is with regard to smaller.It should be noted that when the value of value and d for b is unique, it can be with
To specific unifrequency noise noise reduction.But specific single-frequency can be combined into according to matching for the two value when b and d is multiple and different value
Rate noise or specific multi-frequency noise noise reduction.The number of the value of the value and d of b, size according to the actual situation depending on.
Denoising device principle of the invention is such that the limited closed sky in spiral camber noise filtering device 1
Between, when noise source travels to spiral camber noise filtering device 1, carry out noise reduction.Sound wave is usually made an uproar touching spiral camber
Sound filter device 1 is propagated with opposite direction, so most incidence wave can be interfered with back wave.
Spiral camber noise filtering device 1 be using resonance principle carry out noise reduction, in space specific noise frequency with
It is already provided with the spiral camber noise filtering device 1 of target frequency, forms covibration.
When resonate occur when, the sound wave of oscillation can intensely pierce into out through-hole 11 back and forth in air, and the sound of noise can be
It is converted to friction loss during this, achievees the effect that eliminate target frequency noise.
A kind of band of the present invention can be made by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution including spiral case
Portion carries out noise reduction, especially for the leaf frequency noise frequency (blade passing Frequency) of blower and wind-induced broadband
Noise (broadband noise) generates good noise reduction effect.
A kind of band of the invention is provided with smoke machine by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution
Main body and the spiral camber noise filtering device 1 that can reduce specific unifrequency noise or multi-frequency noise, spiral camber is made an uproar
Sound filter device 1 is assigned in smoke machine body interior.Spiral camber noise filtering device 1 is distributed with multiple for specific unifrequency noise
Or the through-hole 11 of multi-frequency noise.The shape of the through-hole 11 is circle, ellipse, triangle, square, rectangle, five
At least one of side shape, hexagon, diamond shape or irregular shape.A kind of band of the invention is by the spiral for arranging area distribution
The kitchen ventilator of curved surface noise filtering device can be by adjusting the aperture of different through-holes 11, the edge of through-hole 11 and adjacent through-holes 11
Edge minimum range or spiral camber noise filtering device 1 combined at a distance from smoke machine main body and reach specific unifrequency noise reduction
Purpose.The kitchen ventilator has the advantages that low cost, reliability are high, and can be effectively reduced specific unifrequency noise
Embodiment 2.
A kind of band is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, and as illustrated in figures 4-5, other are special
Property it is same as Example 1, the difference is that: the arrangement region 13 of the present embodiment be square arrangement, as shown in Fig. 5.
It should be noted that the square arrangement in the present invention is not limited in Fig. 5, in Fig. 3 in A and Fig. 3 shown in B, other
The arrangement region 13 of meaning square arrangement also meets the requirement of square arrangement in the present invention, also within the scope of the present invention.
The d and b of the present embodiment have multiple values.The present embodiment is multi-frequency noise noise reduction kitchen ventilator.
Experiments verify that the arrangement region 13 of the present embodiment is preferable for the noise reduction effect of square arrangement.
Embodiment 3.
A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator, as shown in fig. 6, other characteristics
It is same as Example 2, the difference is that: smoke machine main body is provided with spiral case, and spiral case is assemblied in smoke machine body interior.
Spiral case is provided with shell 2, and spiral camber noise filtering device 1 is assemblied in inside shell 2, and the blower of smoke machine main body
It is assemblied in inside spiral camber noise filtering device 1.
There are gaps between shell 2 and spiral camber noise filtering device 1, are H by the distance definition in gap1。
In specific distance, about a quarter of noise source wavelength away from degree at, the speed of particle reaches highest.Yin Benfa
It is bright by shell 2 at a distance from spiral camber noise filtering device 1 i.e. H1, noise source wavelength a quarter away from degree at,
The noise of the wavelength can be effectively eliminated.
The spiral camber noise filtering device 1 of the present embodiment is assemblied in inside spiral case, and noise source blower is enclosed in spiral
Curved surface noise filtering device 1, is conducive to from source with regard to noise reduction.The band is filled by the spiral camber noise filtering of arrangement area distribution
The inner space that the kitchen ventilator set can efficiently use kitchen ventilator reaches the size design of minimum, at the same can in noise source,
Noise reduction is carried out at or near blower.
Embodiment 4.
A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator, as shown in fig. 7, other characteristics
It is same as Example 2, the difference is that: spiral case is additionally provided with sound-absorbing part 3, and the sound-absorbing part 3 is fixed on gap sound-absorbing part 3
Thickness is defined as H2, and H2≤0.6H1。
The density and material of sound-absorbing part 3 also have important influence, and sound wave can not have directly through the sound-absorbing part of extremely-low density
The frictional wear of method increase sound energy.Under high density, noise sound wave then can be reflected away directly, can not enter spiral camber
The hole of noise filtering device 1.
Therefore sound-absorbing part 3 of the invention is preferably fiber, PP cotton, polyester fiber, Carbon fibe perhaps porous foam or suction
Line 3 is porous plate.
The present embodiment increases sound-absorbing part 3 compared with embodiment 2, and the setting of sound-absorbing part 3 can increase the consume of friction, enhances noise reduction
Effect.
Embodiment 5.
A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator, as shown in figure 8, other features
It is same as Example 2, the difference is that, the spiral camber noise filtering device 1 of the present embodiment is specially metal spiral curved surface
Noise filtering device 1.It is 100Hz~8000Hz that spiral camber noise filtering device 1, which eliminates noisy frequency range,.
It should be noted that spiral camber noise filtering device 1 of the invention or plastic spiral curved surface noise filtering dress
1 or alloy spiral camber noise filtering device 1 are set, depending on specific embodiment is with actual conditions.
The thickness of spiral camber noise filtering device 1 of the invention is less than 20mm, because blocked up will increase the total of kitchen ventilator
Body weight.
The spiral camber noise filtering device 1 of the present embodiment is connected with reinforced structure 12.Specific reinforced structure 12
For reinforcing rib.
It should be noted that the one of which of reinforced structure 12 of the invention or reinforcing rib, convex closure or recessed packet,
It can be a variety of any combination, depending on specific embodiment is with actual conditions.
Compared with Example 2, the more rigid of spiral camber noise filtering device 1 is low resistance structure to the present embodiment.It is low
Damping structure can make incidence wave and back wave have out of phase under the specific distance with reflecting surface, thus the sound wave of noise
It can cancel out each other, to reduce the intensity of noise.The spiral camber noise filtering device 1 of the metal of the present embodiment has resistance to height
Warm, durable advantage.
Embodiment 6.
A kind of band by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution design:
Target frequency: 7000Hz.
The aperture d=10mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=23mm, H of adjacent through-holes 111
=2.6mm.
It should be noted that the present embodiment only lists the design parameter for the single goal frequency that frequency is 7000Hz, not table
The generation present invention can only be directed to the noise of this frequency, only corresponding different parameter, and the present invention can eliminate specific unifrequent
Noise.
Embodiment 7.
A kind of band by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution design:
Target frequency 1:800Hz.
The aperture d=4mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=18mm, H of adjacent through-holes 111=
20mm。
Target frequency 2:800Hz.
The aperture d=5mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=23mm, H of adjacent through-holes 111=
20mm。
The present embodiment lists two different d and b combination, can produce identical target frequency.
It should be noted that the present embodiment only lists the design parameter of 800Hz target frequency, the present invention can also be for not
With unifrequent noise, target frequency is obtained by different parameter regulations, identical target frequency also can be by other parameter tune
Section combination obtains identical effect.
Embodiment 8.
A kind of band by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution design:
Target frequency: 8000Hz.
The aperture d=10mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=23mm, H of adjacent through-holes 111
=2.5mm.
It should be noted that the present embodiment only lists the design parameter for the single goal frequency that frequency is 8000Hz, not table
The generation present invention can only be directed to the noise of this frequency, only corresponding different parameter, and the present invention can eliminate specific unifrequent
Noise.
Embodiment 9.
A kind of band by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution design:
Target frequency: 5000Hz.
The aperture d=10mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=25mm, H of adjacent through-holes 111
=2.5mm.
It should be noted that the present embodiment only lists the design parameter for the single goal frequency that frequency is 5000Hz, not table
The generation present invention can only be directed to the noise of this frequency, only corresponding different parameter, and the present invention can eliminate specific unifrequent
Noise.
Embodiment 10.
A kind of band by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution design:
Target frequency: 100Hz.
The aperture d=2mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=23mm, H of adjacent through-holes 111=
50mm。
It should be noted that the present embodiment only lists the design parameter for the single goal frequency that frequency is 100Hz, not table generation
The present invention can only be directed to the noise of this frequency, only corresponding different parameter, and the present invention can eliminate specifically unifrequent make an uproar
Sound
Embodiment 11.
A kind of band by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution design:
Target frequency 1:7000Hz.
The aperture d=10mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=23mm, H of adjacent through-holes 111
=2.6mm.
Target frequency 2:800Hz.
The aperture d=5mm of through-hole 11, the edge of through-hole 11 and the edge minimum range b=23mm, H of adjacent through-holes 111=
20mm。
Therefore the spiral camber noise filtering device 1 of the kitchen ventilator is only with the corresponding through-hole of above-mentioned two target frequency
11 characteristic can effectively eliminate the noise of corresponding frequency.
It should be noted that the present embodiment only lists the design parameter of two target frequencies, table can not only for the present invention
For the noise of two kinds of frequencies, only corresponding different parameter, the present invention can eliminate the noise of multi-frequency, reach wideband frequency drop
It makes an uproar purpose.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should be managed
Solution, can be with modifying or equivalently replacing the technical solution of the present invention, without departing from the essence and model of technical solution of the present invention
It encloses.
Claims (10)
1. a kind of band is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, it is characterised in that: it is provided with cigarette
Owner's body and the spiral camber noise filtering device that can reduce specific unifrequency noise or multi-frequency noise, spiral camber are made an uproar
Sound filter device is assigned in smoke machine body interior；
Multiple through-holes for being used for specific unifrequency noise or multi-frequency noise are distributed in the spiral camber noise filtering device；
The through-hole is distributed in spiral camber noise filtering device by arrangement region.
2. the kitchen ventilator of noise filtering function spiral case according to claim 1, it is characterised in that: the arrangement region is three
At least one of triangular arrangement, square arrangement, diamond array or the polygonal arrangement arranged in addition to above-mentioned three kinds.
3. the kitchen ventilator of noise filtering function spiral case according to claim 2, it is characterised in that: the aperture of the through-hole is fixed
Justice is d, and d≤30mm.
4. band according to claim 3 is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, special
Sign is: the minimum range between the edge of the through-hole and the edge of adjacent through-holes is b, and b is the arbitrary value greater than 0；
The d in the same arrangement region is unique value, and b is unique value.
5. band according to claim 4 is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, special
Sign is: the d is single numerical value or multiple numerical value；
The b is single numerical value or multiple numerical value.
6. band according to claim 5 is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, special
Sign is: by adjusting the edge minimum range or spiral camber in the aperture of different through-holes, the edge of through-hole and adjacent through-holes
Combination of the noise filtering device at a distance from smoke machine main body reaches specific unifrequency noise reduction or multi-frequency noise noise reduction.
7. band is by the spiral camber noise filtering device for arranging area distribution according to claim 4 to 6 any one
Kitchen ventilator, it is characterised in that: the smoke machine main body is provided with spiral case, and spiral case is assemblied in smoke machine body interior；
The spiral case is provided with shell, and spiral camber noise filtering device is assemblied in interior of shell, and the blower dress of smoke machine main body
Inside spiral camber noise filtering device.
8. band according to claim 7 is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, special
Sign is: there are gaps between the shell and spiral camber noise filtering device, are H by the distance definition in gap1。
9. band according to claim 8 is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, special
Sign is: the spiral case is additionally provided with sound-absorbing part, and the sound-absorbing part is fixed on gap；
The thickness of the sound-absorbing part is defined as H2, and H2≤0.6H1；
The sound-absorbing part is fiber, PP cotton, polyester fiber, Carbon fibe or porous foam；Or
The sound-absorbing part is porous plate.
10. band according to claim 9 is by the kitchen ventilator of the spiral camber noise filtering device of arrangement area distribution, special
Sign is: the spiral camber noise filtering device is metal spiral curved surface noise filtering device, plastic spiral curved surface noise mistake
Filter device or alloy spiral camber noise filtering device；
The spiral camber noise filtering device is connected with reinforced structure；
The reinforced structure is convex closure, recessed packet or reinforcing rib；
The thickness of the spiral camber noise filtering device is less than 20mm；
It is 100Hz~8000Hz that the spiral camber noise filtering device, which eliminates noisy frequency range,.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810772843.1A CN108954435A (en) | 2018-07-14 | 2018-07-14 | A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator |
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| CN201810772843.1A CN108954435A (en) | 2018-07-14 | 2018-07-14 | A kind of band by the spiral camber noise filtering device of arrangement area distribution kitchen ventilator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113864838A (en) * | 2021-09-15 | 2021-12-31 | 杭州帅丰科技有限公司 | Three-dimensional integrated kitchen of making an uproar that falls |
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| CN113864838B (en) * | 2021-09-15 | 2024-07-19 | 杭州帅丰科技有限公司 | Integrated kitchen of making an uproar falls in solid |
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Application publication date: 20181207 |