CN211084160U - Range hood and noise reduction structure thereof - Google Patents
Range hood and noise reduction structure thereof Download PDFInfo
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- CN211084160U CN211084160U CN201920636399.0U CN201920636399U CN211084160U CN 211084160 U CN211084160 U CN 211084160U CN 201920636399 U CN201920636399 U CN 201920636399U CN 211084160 U CN211084160 U CN 211084160U
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- range hood
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- 235000019504 cigarettes Nutrition 0.000 claims abstract description 32
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 238000005192 partition Methods 0.000 claims description 40
- 239000011358 absorbing material Substances 0.000 claims description 27
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000000779 smoke Substances 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010022998 Irritability Diseases 0.000 description 1
- 206010033557 Palpitations Diseases 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000009323 psychological health Effects 0.000 description 1
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Abstract
The utility model discloses a range hood falls structure and range hood of making an uproar, range hood is including the cigarette machine main part that has the air intake department of cigarette machine main part is provided with the oil net be provided with the fan in the cigarette machine main part the oil net with the interval is provided with the polylith baffle between the fan seted up the vent on the baffle or be in the baffle with form the vent between the lateral wall of cigarette machine main part, its simple structure of staggered arrangement about the vent can make range hood have sound insulation and sound absorption function, and then further improve range hood's noise reduction.
Description
Technical Field
The utility model relates to a kitchen electricity technical field especially relates to a range hood falls structure and range hood of making an uproar.
Background
In recent years, the cigarette making machine market mainly pushes the concepts of large air volume and large suction, and along with the improvement of the requirements of people on living quality, users pay more and more attention to the noise parameter of the cigarette making machine when purchasing the cigarette making machine, so that the quality of the noise performance of the cigarette making machine is a key factor of product competitiveness.
In the related art, the air volume of the range hood is gradually increased, but the noise generated by the range hood is also increased more and more. When cooking, the user can hardly hear speaking sound, telephone sound, doorbell sound and child sound after opening the range hood, even the strong noise can cause adverse reactions such as irritability, headache, palpitation and the like of kitchen operators, and people can cause serious influence on physical and psychological health if using the range hood with strong noise for a long time. Therefore, the noise becomes the technical problem to be solved urgently in the existing range hood.
Disclosure of Invention
The utility model discloses aim at solving one of the problems that exist among the prior art to a certain extent at least, for this reason, the utility model provides a range hood falls the structure of making an uproar, its simple structure can make range hood have syllable-dividing and sound absorption function, and then further improves range hood's the noise reduction effect.
Furthermore, the utility model also provides a range hood, its reasonable in design can effectively reduce the produced noise of range hood.
The first object is achieved by the following technical scheme:
the utility model provides a range hood falls structure of making an uproar, range hood is including the cigarette machine main part that has the air intake department of cigarette machine main part is provided with the oil net be provided with the fan in the cigarette machine main part the oil net with the interval is provided with the polylith baffle between the fan seted up the vent on the baffle or the baffle with form the vent between the lateral wall of cigarette machine main part, staggered arrangement about the vent.
In some embodiments, sound absorbing protrusions are provided on the partition plate.
In some embodiments, the sound-absorbing protrusion is a hollow thin-walled structure, and the wall thickness of the sound-absorbing protrusion is 0.2mm to 1 mm.
In some embodiments, sound absorbing material is filled in the sound absorbing protrusions.
In some embodiments, the density of the sound-absorbing material filled in the sound-absorbing protrusions of each layer of the partition is different, and the density of the sound-absorbing material on the partition is gradually increased from the oil net to the direction of the fan.
In some embodiments, four layers of the partition plates are sequentially arranged from the oil net to the direction of the fan, wherein the density of the sound-absorbing material on the first layer of the partition plates is 2 to 10kg/m3The density of the sound-absorbing material on the second layer of the partition board is 11 to 20kg/m3The density of the sound-absorbing material on the third layer of the partition board is 25 to 35kg/m3The density of the sound-absorbing material on the fourth layer of the partition board is 40 to 60kg/m3。
In some embodiments, the sound-absorbing protrusion has a semi-elliptical cross-section.
In some embodiments, the vent has a width of 35mm to 65 mm.
In some embodiments, the thickness of the separator is 0.2mm to 2 mm.
The second objective is achieved by the following technical scheme:
a range hood comprises the range hood noise reduction structure in any one of the above embodiments.
Compared with the prior art, the utility model discloses an at least including following beneficial effect:
1. the utility model discloses range hood falls the structure of making an uproar, its simple structure can make range hood have sound insulation and sound absorption function, and then further improves range hood's noise reduction effect.
2. Its reasonable in design can absorb the produced high, medium and low full frequency channel's of range hood noise, and then has improved user's use and has experienced.
3. The utility model discloses a range hood, its reasonable in design can effectively reduce the produced noise of range hood.
Drawings
Fig. 1 is a schematic structural diagram of a noise reduction structure of a range hood according to an embodiment of the present invention;
fig. 2 is a sectional view of a noise reduction structure of a range hood according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a sound-absorbing protrusion in an embodiment of the present invention.
Detailed Description
The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 3, the present embodiment provides a noise reduction structure of a range hood, the range hood includes a range hood main body 1 having an air inlet, an oil screen 2 is provided at the air inlet of the range hood main body 1, a fan 3 is provided in the range hood main body 1, a plurality of partition plates 4 are provided at intervals between the oil screen 2 and the fan 3, a vent 5 is provided on the partition plate 4 or the vent 5 is formed between the partition plate 4 and the side wall of the range hood main body 1, and the vent 5 is arranged in a vertically staggered manner.
In this embodiment, range hood is including the cigarette machine main part 1 that has the air intake, air intake department at cigarette machine main part 1 is provided with oil net 2, install fan 3 in the cigarette machine main part, work is leading-in to cigarette machine main part 1 the inside by the air intake of cigarette machine main part 1 with the oil smoke of outside through fan 3, be provided with polylith baffle 4 in the cigarette machine main part 1 the inside and between oil net 2 and fan 3 at the interval in order to prevent that the produced noise of 3 work of fan from directly propagating to the outside of cigarette machine main part 1 through oil net 2, and then lead to the user to produce a great deal of discomfort. The stiff end of baffle 4 of this embodiment sets up on the inside wall of cigarette machine main part 1, the opposite direction of free end toward 4 stiff ends of baffle extends in order to form vent 5 between the inside wall of 4 free ends of baffle and cigarette machine main part 1, certainly can also directly set up the through-hole on baffle 4 in order to form vent 5, staggered arrangement about the direction about 5 upper and lower directions of two adjacent vents, and then make the range hood can also make the range hood pass through baffle 4 and separate the produced noise of fan 3 when guaranteeing that wind-force is strong, make the noise produce the reflection, and then reduced the outside that sound directly propagated to cigarette machine main part 1 through oil net 2, and then further improved range hood's noise reduction. The number of piles of baffle 4 sets up to four more preferably, but is not limited to four layers, still can select other more suitable numbers of piles baffle 4 for use according to actual need, as long as make the interval of realization sound that range hood can be better, if 4 numbers of piles of baffle set up less then noise reduction effect is not obvious, if 4 numbers of piles of baffle set up more then increased the resistance that air flows in the cigarette machine main part 1, and then the amount of wind influence to range hood is great.
Further, be provided with on baffle 4 and inhale sound arch 41, its simple structure, reasonable in design can carry out the effective absorption to the produced noise of range hood.
Preferably, the sound-absorbing protrusion 41 is a hollow thin-wall structure, the wall thickness of the sound-absorbing protrusion 41 is 0.2mm to 1mm, the design is reasonable, and the production cost of the product can be effectively reduced.
Specifically, sound absorbing material is filled in the sound absorbing protrusion 41, so that the structure is simple, and noise generated by the range hood can be further absorbed.
In this embodiment, be provided with a plurality of sound of inhaling protruding 41 in order to absorb the produced noise of range hood at the upper surface interval of baffle 4, it is hollow broken wall structure to inhale protruding 41 of sound, it is filled with sound absorbing material to inhale protruding 41 intussuseption of sound, the produced noise accessible of range hood inhales the inside that sound protruding 41's thin wall spreads into sound absorption protruding 41, and through inhaling protruding 41 inside packing of sound absorbing material in order to absorb the noise on propagation path, and then make range hood realize inhaling the effect of making an uproar and falling, the wall thickness of inhaling protruding 41 of sound is 0.2mm to 1mm, preferably 0.5mm especially, still can select other more suitable wall thicknesses according to actual need.
Preferably, the density of the sound-absorbing material filled in the sound-absorbing protrusion 41 on each layer of partition plate 4 is different, the density of the sound-absorbing material on the partition plate 4 is gradually increased from the oil net 2 to the fan 3, the design is reasonable and ingenious, and the noise of the full frequency band of high, medium and low, generated by the range hood can be absorbed.
Further, four layers of partition plates 4 are sequentially arranged from the oil net 2 to the direction of the fan 3, wherein the density of the sound-absorbing material on the first layer of partition plate is 2-10 kg/m3The density of the sound absorbing material on the second layer of the partition board is 11 to 20kg/m3Density of sound-absorbing material on third layer of partitionIs 25 to 35kg/m3The density of the sound-absorbing material on the fourth layer of the partition board is 40 to 60kg/m3The range hood has simple structure and reasonable design, and can effectively reduce the noise generated by the range hood.
In this embodiment, the density of the sound-absorbing material filled in the sound-absorbing protrusion 41 on each layer of partition plate 4 is different, in order to make the range hood better absorb the noise of the full frequency band generated by the range hood, the density of the sound-absorbing material on the partition plate 4 is preferably gradually increased from the oil screen 2 to the fan 3, but not limited to the above manner, the density of the sound-absorbing material on the partition plate 4 can be also gradually decreased from the oil screen 2 to the fan 3, and of course, other more suitable setting manners can be selected according to actual needs. In the present embodiment, when the number of the partition plates is four, that is, a first partition plate, a second partition plate, a third partition plate and a fourth partition plate are respectively disposed in the direction from the oil net 2 to the fan 3, the density of the sound-absorbing material on the first partition plate is preferably 10kg/m3 to absorb the noise of 1200Hz to 1500Hz, the density of the sound-absorbing material on the second partition plate is preferably 15kg/m3 to absorb the noise of 900Hz to 1200Hz, and the density of the sound-absorbing material on the third partition plate is preferably 30kg/m3The density of the sound absorbing material on the fourth layer of partition board is preferably 50kg/m so as to be suitable for absorbing the noise of 700Hz-900Hz3The noise absorber is suitable for absorbing the noise of 400Hz-700Hz, is reasonable in design, can absorb the noise of high, medium and low full frequency bands generated by the range hood, and further improves the use experience of a user.
Furthermore, the cross section of the sound-absorbing protrusion 41 is semi-elliptical, the structure is simple, and the sound-absorbing protrusion can better absorb noise.
Specifically, the width of the ventilation opening 5 is 35mm to 65mm, the structure is simple and compact, the design is reasonable, the flowing resistance of oil smoke can be better reduced, and the air quantity required by the work of the range hood can be further ensured.
Particularly, the thickness of the partition plate 4 is 0.2mm to 2mm, the design is reasonable and ingenious, and the partition plate can better separate the noise generated by the fan.
In this embodiment, in order to better absorb noise, the cross section of the sound-absorbing protrusion 41 is preferably configured to be semi-elliptical, but not limited to be elliptical, and may also be rectangular, square or semicircular, and of course, other more suitable shapes may also be selected according to actual needs, the cross section of the sound-absorbing protrusion 41 of this embodiment is semi-elliptical, when the sound-absorbing protrusion 41 absorbs noise generated by the fan 3, the contact area between the sound-absorbing protrusion 41 and the noise can be gradually increased from the fan 3 to the oil screen 2, thereby further enhancing the noise reduction effect of the range hood. The width of the vent 5 of the embodiment is 35mm to 65mm, and the vent 5 is preferably set to 50mm to reduce the flowing resistance of the oil smoke as much as possible, so that the function of the interval sound is ensured, and the air volume required by the operation of the range hood can be ensured. The thickness of the baffle 4 of this embodiment is 0.2mm to 2mm, sets up the thickness of baffle 4 more preferably to 1mm and carries out the separation through baffle 4 with the produced noise of fan 3 for the noise produces the reflection, and then reduces the outside that sound downward propagation was propagated to cigarette machine main part 1 in order to avoid the noise directly to pass through oil net 2, reduces the noise that people's ear department experienced, and then improves user's use and experiences.
Example two:
as shown in fig. 1 to 3, the present embodiment provides a range hood, which includes a noise reduction structure of the range hood according to the first embodiment.
In this embodiment, including the cigarette machine main part 1 that has the air intake, be provided with oil screen 2 in the air intake department of cigarette machine main part 1, be provided with fan 3 in cigarette machine main part 1, be provided with between oil screen 2 and fan 3 and fall the structure of making an uproar as embodiment one the range hood, range hood falls the structure of making an uproar through being provided with as embodiment one between oil screen 2 and fan 3, it can make range hood guarantee wind-force strong, can also make range hood in addition to carry out the separation to the noise that fan 3 produced, make the noise produce the reflection, and then reduce the downward sound of sound and propagate the outside of noise direct transmission to cigarette machine main part 1 through oil screen 2, still can absorb the noise that range hood produced simultaneously, further effectively reduced the produced noise of range hood.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (10)
1. The utility model provides a structure of making an uproar falls of range hood, range hood is including the cigarette machine main part (1) that has the air intake department of cigarette machine main part (1) is provided with oil net (2) be provided with fan (3) in the cigarette machine main part (1), its characterized in that oil net (2) with interval is provided with polylith baffle (4) between fan (3) seted up vent (5) on baffle (4) or be in baffle (4) with form vent (5) between the lateral wall of cigarette machine main part (1), staggered arrangement about vent (5).
2. The noise reduction structure of a range hood according to claim 1, wherein the partition plate (4) is provided with a sound absorption protrusion (41).
3. The noise reduction structure of a range hood according to claim 2, wherein the sound absorption protrusion (41) is a hollow thin-walled structure, and the wall thickness of the sound absorption protrusion (41) is 0.2mm to 1 mm.
4. The noise reduction structure of a range hood according to claim 3, wherein the sound absorption protrusion (41) is filled with a sound absorption material.
5. The noise reduction structure of a range hood according to claim 4, wherein the sound absorption protrusions (41) on each layer of the partition plate (4) are filled with different sound absorption material density, and the sound absorption material density on the partition plate (4) is gradually increased from the oil screen (2) to the fan (3).
6. A noise reducing structure of a range hood according to claim 5, characterized in that, it goes from the oil net (2)Four layers of partition boards (4) are sequentially arranged in the direction of the fan (3), wherein the density of the sound-absorbing material on the first layer of partition board is 2-10 kg/m3The density of the sound-absorbing material on the second layer of the partition board is 11 to 20kg/m3The density of the sound-absorbing material on the third layer of the partition board is 25 to 35kg/m3The density of the sound-absorbing material on the fourth layer of the partition board is 40 to 60kg/m3。
7. The structure of reducing noise of a range hood according to any one of claims 2 to 6, wherein the sound-absorbing protrusion (41) has a semi-elliptical cross-section.
8. The noise reduction structure of a range hood according to any one of claims 1 to 6, wherein the width of the ventilation opening (5) is 35mm to 65 mm.
9. The noise reduction structure of a range hood according to any one of claims 1 to 6, wherein the thickness of the partition plate (4) is 0.2mm to 2 mm.
10. A range hood, characterized by comprising a range hood noise reduction structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920636399.0U CN211084160U (en) | 2019-05-06 | 2019-05-06 | Range hood and noise reduction structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920636399.0U CN211084160U (en) | 2019-05-06 | 2019-05-06 | Range hood and noise reduction structure thereof |
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| CN211084160U true CN211084160U (en) | 2020-07-24 |
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| CN201920636399.0U Active CN211084160U (en) | 2019-05-06 | 2019-05-06 | Range hood and noise reduction structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131764A (en) * | 2019-05-06 | 2019-08-16 | 华帝股份有限公司 | Range hood and noise reduction structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131764A (en) * | 2019-05-06 | 2019-08-16 | 华帝股份有限公司 | Range hood and noise reduction structure thereof |
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