CN209540965U - A kind of kitchen ventilator with noise filtering function bellows - Google Patents
A kind of kitchen ventilator with noise filtering function bellows Download PDFInfo
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- CN209540965U CN209540965U CN201821124360.2U CN201821124360U CN209540965U CN 209540965 U CN209540965 U CN 209540965U CN 201821124360 U CN201821124360 U CN 201821124360U CN 209540965 U CN209540965 U CN 209540965U
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- bellows
- noise
- kitchen ventilator
- panel
- filtering function
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Abstract
A kind of kitchen ventilator with noise filtering function bellows is provided with smoke machine main body and can eliminate the bellows of multi-frequency noise, and bellows are assemblied in smoke machine body interior.The bellows are set as being distributed with multiple for eliminating the panel of the through-hole of multi-frequency noise.The kitchen ventilator with noise filtering function bellows can efficiently use the inner space of kitchen ventilator, reach the size design of minimum and reduce overall weight, while noise reduction can be carried out at or near blower in noise source.Simultaneously a kind of kitchen ventilator with noise filtering function bellows of the utility model can be distributed by adjusting the apertures of different through-holes, the edge of through-hole and edge minimum range, the via regions of panel of adjacent through-holes or bellows and smoke machine main body at a distance from reach multi-frequency noise noise reduction.The kitchen ventilator has the advantages that low cost, reliability are high, and can be effectively reduced narrow frequency noise and broadband noise.
Description
Technical field
The utility model relates to kitchen ventilator field, in particular to a kind of kitchen ventilator with noise filtering function bellows.
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.In the prior art, additional passive denoising device is increased inside kitchen ventilator for passive noise reduction needs, from
And the size of kitchen ventilator is caused to increase, and increase the cost of production and the overall weight of kitchen ventilator.
Therefore, in view of the shortcomings of the prior art, providing a kind of kitchen ventilator with noise filtering function bellows to solve existing skill
Art deficiency is very necessary.
Utility model content
The purpose of this utility model is that providing a kind of band noise filtering function wind in place of avoiding the deficiencies in the prior art
The kitchen ventilator of case.The kitchen ventilator with noise filtering function bellows can efficiently use the inner space of kitchen ventilator, reach minimum
The size design of change and reduce overall weight.
The above-mentioned purpose of the utility model is realized by following technical measures:
A kind of kitchen ventilator with noise filtering function bellows is provided, smoke machine main body is provided with and the wind of noise can be eliminated
Case, bellows are assemblied in smoke machine body interior.
The bellows are formed by multiple panel splicings, and panel is distributed with multiple for eliminating the through-hole of noise.
Preferably, above-mentioned smoke machine main body is provided with outer cover, and bellows are assemblied in the inside of outer cover.
Preferably, above-mentioned multiple panel splicings form continuous limited encirclement bellows.
The utility model by adjusting the aperture of different through-holes, the edge of through-hole and adjacent through-holes edge minimum range,
The via regions of panel are distributed or bellows reach multi-frequency noise noise reduction at a distance from smoke machine main body.
Preferably, the aperture of above-mentioned through-hole is defined as d, and d≤30mm.
Preferably, the value of above-mentioned d is multiple.
Preferably, the minimum range between the edge of above-mentioned through-hole and the edge of adjacent through-holes is b, and b is appointing greater than 0
Meaning value.
Preferably, the value of above-mentioned b is multiple.
Preferably, there are gaps between above-mentioned panel and outer cover, are H by the distance definition in gap1。
Preferably, above-mentioned bellows are additionally provided with sound-absorbing part, and sound-absorbing part assembles smoke machine main body.
Preferably, the thickness of above-mentioned sound-absorbing part is defined as H2, and H2≤0.6H1。
Preferably, above-mentioned sound-absorbing part is fixed on gap.
Preferably, above-mentioned sound-absorbing part is fiber, PP cotton, polyester fiber, carbon fiber or porous foam；Or
The sound-absorbing part is porous plate.
Preferably, above-mentioned panel is metal decking, plastic front board or alloy panel.
Preferably, above-mentioned panel is connected with reinforced structure.
Preferably, above-mentioned reinforced structure is convex closure, recessed packet or reinforcing rib.
Preferably, the thickness of above-mentioned panel is less than 20mm.
Preferably, it is 100Hz~8000Hz that above-mentioned bellows, which eliminate noisy frequency range,.
A kind of kitchen ventilator with noise filtering function bellows of the utility model is provided with smoke machine main body and can eliminate more
The bellows of frequency noise, bellows are assemblied in smoke machine body interior.The bellows are set as being distributed with multiple for eliminating multi-frequency
The panel of the through-hole of noise.The kitchen ventilator with noise filtering function bellows can efficiently use the inner space of kitchen ventilator, reach
To minimum size design and reduce overall weight, while noise reduction can be carried out at or near blower in noise source.Together
When the utility model a kind of kitchen ventilator with noise filtering function bellows can be by adjusting the apertures of different through-holes, through-hole
Reach more at a distance from the edge minimum range of edge and adjacent through-holes, the distribution of the via regions of panel or bellows and smoke machine main body
Frequency noise noise reduction.The kitchen ventilator has the advantages that low cost, reliability are high, and can be effectively reduced narrow frequency noise and broadband
Noise, noise reduction wide frequency range can reduce the noise of multiple frequencies.
Detailed description of the invention
The utility model is further described using attached drawing, but the content in attached drawing is not constituted to the utility model
Any restrictions.
Fig. 1 is the schematic perspective view of bellows.
Fig. 2 is right view in Fig. 1.
Fig. 3 is the through-hole diameter schematic diagram of panel.
Fig. 4 is the edge of the through-hole of panel and the edge minimum range schematic diagram of adjacent through-holes.
Fig. 5 is a kind of kitchen ventilator bottom view with noise filtering function bellows of embodiment 2.
Fig. 6 is the panel construction schematic diagram of embodiment 3.
Fig. 1 includes into Fig. 6:
Bellows 1,
Panel 11, through-hole 111, reinforced structure 112,
Sound-absorbing part 12,
Outer cover 2.
Specific embodiment
The technical solution of the utility model is described further with the following Examples.
Embodiment 1.
A kind of kitchen ventilator with noise filtering function bellows is provided with smoke machine main body and can eliminate more as shown in Figs 1-4
The bellows 1 of frequency noise, bellows 1 are assemblied in smoke machine body interior.Bellows 1 are spliced by multiple panels 11, and panel 11 is distributed
Have multiple for eliminating the through-hole 111 of noise.
Smoke machine main body is provided with outer cover 2, and bellows 1 are assemblied in the inside of outer cover 2.Panel 11 is set as multiple, multiple panels
11 are spliced continuous limited encirclement bellows 1.The panel 11 of the present embodiment specifically has 5, and 5 panels 11 are spliced under one
The polyhedron of bottom opening.
It should be noted that 11 number of panel of the utility model can be 5, or 2 or times above
Meaning number, continuous limited encirclement bellows 1 as long as panel 11 may only be spliced, specific performance is according to reality
Depending on the situation of border.
The utility model by adjusting the apertures of different through-holes 111, the side at the edge of through-hole 111 and adjacent through-holes 111
Edge minimum range, 111 area distribution of through-hole of panel 11 or bellows 1 reach multi-frequency noise drop at a distance from smoke machine main body
It makes an uproar.
The aperture of the through-hole 111 of the utility model is defined as d, and d≤30mm；Wherein the value of d is multiple.This is practical new
The edge of the through-hole 111 of type and the edge minimum range of adjacent through-holes 111 are b, and b is the arbitrary value greater than 0, and wherein the value of b is
It is multiple.
In the constant situation of aperture d, the value of the edge minimum range b at the edge and adjacent through-holes 111 of through-hole 111 is smaller to disappear
The target noise frequency removed is bigger.Under the edge of through-hole 111 and the constant situation of edge minimum range b of adjacent through-holes 111,
The smaller target noise frequency to be eliminated of the value of aperture d is with regard to smaller.
There are gaps between panel 11 and outer cover 2, are H by the distance definition in gap1。
The denoising device principle of the utility model is such that the limited closed space in bellows 1, passes in noise source
When being multicast to bellows 1, noise reduction is carried out.Sound wave is usually propagated with opposite direction touching bellows 1, thus most incidence wave can and
Back wave interferes.In specific distance, about a quarter of noise source wavelength away from i.e. H at degree1, the speed of particle reaches
Highest.Because the utility model passes through the i.e. H at a distance from outer cover 2 of bellows 11, noise source wavelength a quarter away from degree at, just
The noise of the wavelength can be effectively eliminated.
Bellows 1 are to carry out noise reduction using the principle of resonance, specific noise frequency and are already provided with target frequency in space
Bellows 1, formed covibration.
When resonance occurs, the sound wave of oscillation can intensely pierce into out through-hole 111, the sound energy of noise back and forth in air
It is converted to friction loss in the process, achievees the effect that eliminate target frequency noise.
A kind of kitchen ventilator with noise filtering function bellows of the utility model can be by adjusting the hole of different through-holes 111
Edge minimum range, 111 area distribution of through-hole of panel 11 or the bellows 1 of diameter, the edge of through-hole 111 and adjacent through-holes 111
Reach multi-frequency noise noise reduction at a distance from smoke machine main body.Therefore the utility model can be simply by 11 through-hole 111 of panel
Division, arrangement and the arrangement in region can achieve wideband frequency noise reduction purpose.The oil smoke function with noise filtering function bellows
The inner space for enough efficiently using kitchen ventilator, reaches the size design of minimum and reduces overall weight, while can be in noise
Noise reduction is carried out at or near source, that is, blower.The kitchen ventilator has the advantages that low cost, reliability are high, and can be effectively reduced
Narrow frequency noise and broadband noise, noise reduction wide frequency range can reduce the noise of multiple frequencies.
Embodiment 2.
A kind of kitchen ventilator with noise filtering function bellows, as shown in figure 5, other characteristics are same as Example 1, difference
It is in and is additionally provided with sound-absorbing part 12 in: bellows 1, sound-absorbing part assembles smoke machine main body.The thickness of sound-absorbing part 12 is defined as H2, and H2≤
0.6H1。
The sound-absorbing part 12 of the present embodiment is fixed on gap.
The density and material of sound-absorbing part 12 also have an important influence, sound wave can directly through the sound-absorbing part of extremely-low density,
The frictional wear of sound energy can not be increased.Under high density, noise sound wave then can be reflected away directly, can not enter bellows 1
Hole.
Therefore the sound-absorbing part 12 of the utility model is preferably fiber, PP cotton, polyester fiber, carbon fiber or porous foam.
Or sound-absorbing part 12 is porous plate.
The present embodiment increases sound-absorbing part 12 compared with embodiment 1, and the setting of sound-absorbing part 12 can increase the consume of friction, enhancing drop
It makes an uproar effect.
Embodiment 3.
A kind of kitchen ventilator with noise filtering function bellows, as shown in fig. 6, other features are same as Example 1, difference
It is in the panel 11 of the present embodiment is specially metal decking 11.It is 100Hz~8000Hz that bellows 1, which eliminate noisy frequency range,.
It should be noted that the panel 11 of the utility model or plastic front board 11 or alloy panel 11, specific real
Depending on mode is applied with actual conditions.
The thickness of the panel 11 of the utility model is less than 20mm, because of the blocked up weight that will increase bellows 1.
The panel 11 of the present embodiment is connected with reinforced structure 112.Specific reinforced structure 112 is reinforcing rib.
It should be noted that wherein the one of the reinforced structure 112 of the utility model or reinforcing rib, convex closure or recessed packet
Kind, or a variety of any combination, depending on specific embodiment is with actual conditions.
Compared with Example 1, the more rigid of panel 11 is low resistance structure to the present embodiment.Low resistance structure can make into
Ejected wave and back wave have out of phase under the specific distance with reflecting surface, so that the sound wave of noise can cancel out each other, from
And reduce the intensity of noise.The panel 11 of the metal of the present embodiment has the advantages that high temperature resistant, durable.
Embodiment 4.
A kind of design of the kitchen ventilator with noise filtering function bellows:
Target frequency 1:7000Hz.
The aperture d=10mm of through-hole 111, the edge of through-hole 111 and the edge minimum range b=23mm of adjacent through-holes 111,
H1=2.6mm.
Target frequency 2:800Hz.
The aperture d=5mm of through-hole 111, the edge of through-hole 111 and the edge minimum range b=23mm of adjacent through-holes 111,
H1=20mm.
Therefore the bellows 1 of the kitchen ventilator can only have in the characteristic with the corresponding through-hole 111 of above-mentioned two target frequency
Effect eliminates the noise of corresponding frequency.
It should be noted that the present embodiment only lists the design parameter of two target frequencies, table is not for the utility model
It can only be directed to the noise of two kinds of frequencies, only corresponding different parameter, the utility model can eliminate the noise of multi-frequency, reach wide
Band frequency noise reduction purpose.
Embodiment 5.
A kind of design of the kitchen ventilator with noise filtering function bellows:
Target frequency 1:8000Hz.
The aperture d=10mm of through-hole 111, the edge of through-hole 111 and the edge minimum range b=23mm of adjacent through-holes 111,
H1=2.5mm.
Target frequency 2:100Hz.
The aperture d=2mm of through-hole 111, the edge of through-hole 111 and the edge minimum range b=23mm of adjacent through-holes 111,
H1=50mm.
Therefore the bellows 1 of the kitchen ventilator can only have in the characteristic with the corresponding through-hole 111 of above-mentioned two target frequency
Effect eliminates the noise of corresponding frequency.
It should be noted that the present embodiment only lists the design parameter of two target frequencies, table is not for the utility model
It can only be directed to the noise of two kinds of frequencies, only corresponding different parameter, the utility model can eliminate the noise of multi-frequency, reach wide
Band frequency noise reduction purpose.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the utility model rather than to this is practical
The limitation of novel protected range, although being explained in detail referring to preferred embodiment to the utility model, the common skill of this field
Art personnel, which should be appreciated that, can be modified or replaced equivalently technical solutions of the utility model, practical new without departing from this
The spirit and scope of type technical solution.
Claims (10)
1. a kind of kitchen ventilator with noise filtering function bellows, it is characterised in that: it is provided with smoke machine main body and noise can be eliminated
Bellows, bellows are assemblied in smoke machine body interior；
The bellows are formed by multiple panel splicings, and panel is distributed with multiple for eliminating the through-hole of noise.
2. the kitchen ventilator according to claim 1 with noise filtering function bellows, it is characterised in that: the smoke machine main body is set
It is equipped with outer cover, bellows are assemblied in the inside of outer cover；
The multiple panel splicing forms continuous limited encirclement bellows.
3. the kitchen ventilator according to claim 2 with noise filtering function bellows, it is characterised in that: it is logical by adjusting difference
Edge minimum range, the distribution of the via regions of panel or the bellows and smoke machine in the aperture in hole, the edge of through-hole and adjacent through-holes
The distance of main body reaches multi-frequency noise noise reduction.
4. the kitchen ventilator according to claim 3 with noise filtering function bellows, it is characterised in that: the aperture of the through-hole
It is defined as d, and d≤30mm；
The value of the d is multiple.
5. the kitchen ventilator according to claim 4 with noise filtering function bellows, it is characterised in that: the edge of the through-hole
Minimum range between the edge of adjacent through-holes is b, and b is the arbitrary value greater than 0；
The value of the b is multiple.
6. the kitchen ventilator according to claim 5 with noise filtering function bellows, it is characterised in that: the panel and outer cover
Between there are gap, be H by the distance definition in gap1。
7. the kitchen ventilator according to claim 6 with noise filtering function bellows, it is characterised in that: the bellows are also set up
There is sound-absorbing part, sound-absorbing part assembles smoke machine main body；
The thickness of the sound-absorbing part is defined as H2, and H2≤0.6H1。
8. the kitchen ventilator according to claim 7 with noise filtering function bellows, it is characterised in that: the sound-absorbing part is fixed
In gap；
The sound-absorbing part is fiber, PP cotton, polyester fiber, carbon fiber or porous foam；Or
The sound-absorbing part is porous plate.
9. the kitchen ventilator according to claim 8 with noise filtering function bellows, it is characterised in that: the panel is metal
Panel, plastic front board or alloy panel；
The panel is connected with reinforced structure；
The reinforced structure is convex closure, recessed packet or reinforcing rib.
10. the kitchen ventilator according to claim 9 with noise filtering function bellows, it is characterised in that: the thickness of the panel
Degree is less than 20mm；
It is 100Hz~8000Hz that the bellows, which eliminate noisy frequency range,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124360.2U CN209540965U (en) | 2018-07-14 | 2018-07-14 | A kind of kitchen ventilator with noise filtering function bellows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124360.2U CN209540965U (en) | 2018-07-14 | 2018-07-14 | A kind of kitchen ventilator with noise filtering function bellows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209540965U true CN209540965U (en) | 2019-10-25 |
Family
ID=68244500
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821124360.2U Withdrawn - After Issue CN209540965U (en) | 2018-07-14 | 2018-07-14 | A kind of kitchen ventilator with noise filtering function bellows |
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| Country | Link |
|---|---|
| CN (1) | CN209540965U (en) |
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2018
- 2018-07-14 CN CN201821124360.2U patent/CN209540965U/en not_active Withdrawn - After Issue
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191025 Effective date of abandoning: 20200609 |
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| AV01 | Patent right actively abandoned |