CN208750799U - A kind of low-noise exhauster for removing cooking fumes - Google Patents
A kind of low-noise exhauster for removing cooking fumes Download PDFInfo
- Publication number
- CN208750799U CN208750799U CN201821228294.3U CN201821228294U CN208750799U CN 208750799 U CN208750799 U CN 208750799U CN 201821228294 U CN201821228294 U CN 201821228294U CN 208750799 U CN208750799 U CN 208750799U
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- China
- Prior art keywords
- shell
- noise
- acoustical panel
- turbine assembly
- exhauster
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- 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.)
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Links
- 238000010411 cooking Methods 0.000 title claims abstract description 24
- 239000003517 fume Substances 0.000 title claims abstract description 23
- 238000002955 isolation Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of low-noise exhauster for removing cooking fumes, can reduce the noise generated when range hood work.The low-noise exhauster for removing cooking fumes includes shell, and the blower turbine assembly and muffler containing shell in shell inner cavity, the shell of blower turbine assembly is connect with outer casing inner wall, muffler is connected with the shell of blower turbine assembly, and forms seal cavity between the shell and muffler of blower turbine assembly.
Description
Technical field
The utility model relates to a kind of range hoods, it particularly relates to a kind of low-noise exhauster for removing cooking fumes.
Background technique
In China, range hood is a kind of common household electrical appliance.Range hood is used to adsorb what cooking generated in the process
Oil smoke, and oil smoke is drained into outdoor.Existing range hood generally includes shell, turbine, motor, fan blade etc..Motor driven whirlpool
Wheel and fan blade rotation, so that interior of shell generates negative pressure, and then adsorb the oil smoke for being located at outer side of shell.It is set on the outside of turbine
There are shell, shell and cage connection.It is larger that the range hood of the structure generates noise at work, keeps human body uncomfortable.
Summary of the invention
The technical problem to be solved by the utility model is to provide a kind of low-noise exhauster for removing cooking fumes and noise-reduction methods, with drop
The noise that low range hood generates when working.
To solve above-mentioned technical problem: the utility model uses following technical scheme:
A kind of low-noise exhauster for removing cooking fumes, including shell, and the blower turbine group containing shell in shell inner cavity
The shell of part and muffler, blower turbine assembly is connect with outer casing inner wall, and muffler is connected with the shell of blower turbine assembly, and
Seal cavity is formed between the shell and muffler of blower turbine assembly.
As preference, the low-noise exhauster for removing cooking fumes further includes isolation board, the isolation board respectively with muffler and
The shell of blower turbine assembly connects, so that forming seal cavity between muffler and the shell of blower turbine assembly.
As preference, the low-noise exhauster for removing cooking fumes further includes preceding acoustical panel, and the preceding acoustical panel is located at shell
It is interior, preceding acoustical panel and cage connection, and it is opposite with the advance air port of blower turbine assembly.
As preference, the angle between the preceding acoustical panel and shell foreboard is 0-10 °, and preceding acoustical panel bottom end is extremely
The distance of shell foreboard is equal to or less than the distance on preceding acoustical panel top to shell foreboard.
As preference, the preceding acoustical panel is laid vertically.
As preference, the low-noise exhauster for removing cooking fumes further includes rear acoustical panel, and the rear acoustical panel is located at shell
It is interior, rear acoustical panel and cage connection, and it is opposite with the rear air inlet of blower turbine assembly.
As preference, the angle between the rear acoustical panel and shell back plate is 0-10 °, and rear acoustical panel bottom end is extremely
The distance of shell back plate is equal to or less than the distance on rear acoustical panel top to shell back plate.
As preference, the rear acoustical panel is laid vertically.
As preference, the preceding acoustical panel and rear acoustical panel absorb centrifugal fan noise, reduce in shell and blower whirlpool
Roundtrip noise between wheel assembly.
Compared with prior art, when the low-noise exhauster for removing cooking fumes of the utility model embodiment can reduce range hood work
The noise of generation.The range hood of the utility model embodiment includes shell and blower turbine assembly.Blower turbine assembly contains
Shell.The shell of blower turbine assembly is connect with outer casing inner wall, and sealing is formed between the shell and shell of blower turbine assembly
Cavity.In the prior art, it is only to be located by connecting between the shell and shell of blower turbine assembly, does not have between shell and shell
Form confined space.Blower turbine assembly generates noise when working.By will seal between shell and shell, seal chamber is formed
Noise can be significantly reduced in body.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the assembling schematic diagram of muffler in the utility model embodiment, isolation board and blower turbine assembly；
Fig. 3 is the assembling schematic diagram of muffler and isolation board in the utility model embodiment.
Have in figure: shell 1, blower turbine assembly 2, shell 201, preceding acoustical panel 3, rear acoustical panel 4, muffler 5, isolation board
6。
Specific embodiment
With reference to the accompanying drawing, the technical solution of the utility model is described in detail.
As depicted in figs. 1 and 2, the range hood of the utility model embodiment, including shell 1, and it is located at 1 inner cavity of shell
In the blower turbine assembly 2 and muffler 5 containing shell 201.Blower turbine assembly 2 is connect with 1 inner wall of shell, muffler 5
It is connected with the shell 201 of blower turbine assembly.Seal cavity is formed between the shell 201 and muffler 5 of blower turbine assembly.
In above-described embodiment, seal cavity is formed between the shell 201 and muffler 5 of blower turbine assembly.The prior art
In, muffler 5 is connected on the shell 201 of blower turbine assembly, there is gap between the two, is connected to air intake passage and muffler 5
Inner cavity.Sealing space is not formed between shell 201 and muffler 5.Blower turbine assembly 2 generates noise when working.Passing through will
Shell 201 and muffler 5 connect, and form seal cavity, can reduce noise.It is formed after seal cavity, air intake passage is more
It is smooth, reduce the quadratic noise that air-flow generates.Meanwhile seal cavity can reduce inside cavity and make an uproar sonic propagation, and facilitate
Reduce the roundtrip noise between blower fan panel and centrifugal blower.
Shell 201 is connect with muffler 5, and to reach sealing effect, sealing element can be separately provided, respectively with shell 201
It connects, sealing element and muffler 5 can also be can be integrated with muffler 5, it is whole to be connect with shell 201.For convenient for assembling and
Disassembly, is preferably separately provided sealing element.For example, as shown in figure 3, sealing element is isolation board 6.Isolation board 6 respectively with muffler 5 and
The shell 201 of blower turbine assembly connects, so that forming seal cavity between muffler 5 and the shell 201 of blower turbine assembly.
In this way, due to the blocking of isolation board 6, so the air-flow in air intake passage between shell 1 and shell 201, will not be directly entered
In seal cavity, but the air inlet of shell 201 is passed through, into blower turbine assembly 2.
As preference, the range hood further includes preceding acoustical panel 3, and preceding acoustical panel 3 is located in shell 1, preceding acoustical panel 3
It is connect with shell 1, and opposite with the advance air port of blower turbine assembly 2.Blower turbine assembly 2 includes advance air port and rear air inlet
Mouthful.Preceding acoustical panel 3 is made of the material with erasure effect, such as polyester fiber, foamed plastics etc..When work, people is located at wind
The front in the advance air port of machine turbine assembly 2, so the acoustical panel 3 before the front of shell 1 is arranged, can be significantly reduced noise pair
The damage of people's hearing.Blower turbine assembly 2 generates noise when working, the main advance air port by blower turbine assembly 2, laggard
It propagates outward in air port.Therefore, preceding acoustical panel 3 is opposite with the advance air port of blower turbine assembly 2, noise can be significantly reduced.
As preference, the angle between the preceding acoustical panel 3 and 1 foreboard of shell is 0-10 °, and 3 bottom end of preceding acoustical panel
It is equal to or less than the distance on preceding 3 top of acoustical panel to 1 foreboard of shell to the distance of 1 foreboard of shell.Preceding acoustical panel 3 and shell 1
Angle between foreboard is set as in 0-10 °.In this way, the shell 201 of 1 foreboard of shell and blower turbine assembly 2 is formed
For advancing air channel, the setting of preceding acoustical panel 3 does not influence air-flow and flows in advancing air channel.If preceding acoustical panel 3 with it is outer
Angle between 1 foreboard of shell is excessive, then can cause to hinder to the flowing of air-flow, reduces air velocity.
In the prior art, the channel formed between acoustical panel 3 and 201 surface of shell of blower turbine assembly 2 is gradual change,
In order to eliminate the noise before oil smoke enters shell 201.And this preference, it makes an uproar using to the work generation of blower turbine assembly 2
Sound is eliminated the noise.The partial noise that the work of blower turbine assembly 2 generates enters preceding acoustical panel 3 and blower turbine by advance air port
Channel between 201 surface of shell of component 2 absorbs noise by preceding acoustical panel 3.
Preferably, the preceding acoustical panel 3 is laid vertically.The entire advance air port phase of preceding acoustical panel 3 and blower turbine assembly 2
It is right.Air-flow containing oil smoke enters from the extraneous air intake passage by between preceding acoustical panel 3 and the shell 201 of blower turbine assembly
In advance air port.Preceding acoustical panel 3 is laid vertically, so that intake velocity is unaffected.
To further decrease noise, the low-noise exhauster for removing cooking fumes further includes rear acoustical panel 4, and the rear acoustical panel 4 is located at
In shell 1, rear acoustical panel 4 is connect with shell 1, and opposite with the rear air inlet of blower turbine assembly 2.The material of acoustical panel 4 afterwards
Can be identical as preceding acoustical panel 3, it can also be different, if it is made of the material with erasure effect, such as polyester fiber,
Foamed plastics etc..
Blower turbine assembly 2 generates noise when working, the main advance air port by blower turbine assembly 2, rear air inlet
It propagates outward.Therefore, rear acoustical panel 4 is opposite with the rear air inlet of blower turbine assembly 2, noise can be reduced.
As preference, the angle between 1 back plate of the rear acoustical panel 4 and shell is 0-10 °, and rear 4 bottom end of acoustical panel
It is equal to or less than the distance on rear 4 top of acoustical panel to 1 back plate of shell to the distance of 1 back plate of shell.Acoustical panel 4 and shell 1 afterwards
Angle between back plate is in 0-10 °.In this way, being formed for the shell 201 of 1 back plate of shell and blower turbine assembly 2 laggard
For wind channel, the setting of rear acoustical panel 4 does not influence air-flow and flows in rear air intake passage.If rear acoustical panel 4 and shell 1
Angle between back plate is excessive, then can cause to hinder to the flowing of air-flow, reduces air velocity.
Preferably, the rear acoustical panel 4 is laid vertically.The entire rear air inlet phase of acoustical panel 4 and blower turbine assembly 2 afterwards
It is right.Acoustical panel 4 is laid vertically afterwards, so that intake velocity is unaffected.
This preference is eliminated the noise using the noise generated to the work of blower turbine assembly 2.Blower turbine assembly 2 works
The partial noise of generation is entered logical between rear acoustical panel 4 and 201 surface of shell of blower turbine assembly 2 by rear air inlet
Road absorbs noise by rear acoustical panel 4.
In above-described embodiment or preference, centrifugal fan noise can be approximately considered and be impinged perpendicularly on by air inlet
On the panel of shell.Therefore, preceding acoustical panel 3 and rear acoustical panel 4 are laid on casing of kitchen ventilator, it can maximal efficiency absorption centrifugal blower
Noise, meanwhile, reduce the roundtrip noise between shell and blower.
The range hood noise-reduction method of above-described embodiment, comprising:
Isolation board 6 is connected on the shell 201 of muffler 5 and blower turbine assembly, so that the shell of blower turbine assembly
Seal cavity is formed between body 201 and muffler 5；
Start blower turbine assembly 2, generate negative pressure, extraneous oil smoke is entered into wind with the air inlet that air-flow passes through shell 201
In machine turbine assembly 2；Reduce air-flow using seal cavity and generate quadratic noise, and reduce shell 1 and blower turbine assembly 2 it
Between roundtrip noise.
Isolation board 6 is arranged in above-mentioned noise-reduction method on shell 201 and muffler 5, be isolated between shell 201 and shell 1 into
Wind channel and 5 inner cavity of muffler.In this way, entering blower turbine group from the air inlet on shell 201 after air-flow enters air intake passage
In part 2, without being directly entered in 5 inner cavity of muffler.If air-flow directly enters 5 inner cavity of muffler from air intake passage,
Vortex can be generated, noise reduction is unfavorable for.It being formed after seal cavity between shell 201 and silencer 5, air intake passage is more smoothly,
Reduce the quadratic noise that air-flow generates.
As preference, above-mentioned noise-reduction method further include: preceding acoustical panel 3 is placed in shell 1, and preceding acoustical panel 3 and wind
Advance air port on the shell 201 of machine turbine assembly is opposite.
The noise that above-mentioned preference generates the work of blower turbine assembly 2 is eliminated the noise.The work of blower turbine assembly 2 generates
Partial noise by the advance air port on the shell 201 of blower turbine assembly 2 enter preceding acoustical panel 3 and 201 surface of shell it
Between advancing air channel in, pass through preceding acoustical panel 3 and absorb noise, reduce roundtrip of the noise between shell 1 and shell 201
Noise.
As preference, above-mentioned noise-reduction method further include: rear acoustical panel 4 is placed in shell (1), and rear acoustical panel 4 with
Rear air inlet on the shell 201 of blower turbine assembly is opposite.
The noise that above-mentioned preference generates the work of blower turbine assembly 2 is eliminated the noise.The work of blower turbine assembly 2 generates
Partial noise by the rear air inlet on the shell 201 of blower turbine assembly 2 enter rear acoustical panel 4 and 201 surface of shell it
Between rear air intake passage in, pass through rear acoustical panel 4 and absorb noise, reduce roundtrip of the noise between shell 1 and shell 201
Noise.
There is good noise reduction effect using the range hood of technical solutions of the utility model below by experimental verification.
Sample 1
A kind of low-noise exhauster for removing cooking fumes, using the technical solution of the utility model, by the shell of blower turbine assembly and outside
Airtight connection between shell forms seal cavity.But it is not provided with preceding acoustical panel and rear acoustical panel.The power of blower is 261w.Shell
The diameter in advance air port and rear air inlet on body is 205mm.Blower frame (i.e. shell) is having a size of high 435 mm, length 380
Mm, wide 320 mm.
Sample 2
It is identical as 1 structure of sample, but also increase and preceding acoustical panel and rear acoustical panel are set.Preceding acoustical panel and blower turbine group
The advance air port of part is opposite.Acoustical panel is opposite with the rear air inlet of blower turbine assembly afterwards.The size of preceding acoustical panel is length
406mm, wide 302 mm.The size of acoustical panel is long 400mm, wide 345 mm afterwards.
Sample 3
A kind of low-noise exhauster for removing cooking fumes will not have airtight connection between the shell and shell of blower turbine assembly, not set yet
Set preceding acoustical panel and rear acoustical panel.
According to national standard GB/T 17713-2011, noise reduction test is carried out to the range hood of above-mentioned sample.Test result is such as
Under:
As can be seen from the above test results that: sample 3 is not provided with the seal cavity and acoustical panel of the utility model, noise data
For 71.4db.Sample 1 is provided with the seal cavity of the utility model, but is not provided with acoustical panel, noise data 70.3db.
Compared to sample 3,1 noise of sample reduces 1.1 db.Sample 2 is provided with the seal cavity and front and back noise reduction of the utility model
Plate, noise data 67.4db.Compared to sample 3,2 noise of sample reduces 4db.
The basic principles and main features and advantage of the utility model have been shown and described above.Those skilled in the art
It should be appreciated that the utility model is not limited by above-mentioned specific embodiment, the description in above-mentioned specific embodiment and specification is only
It is in order to further illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, this is practical
Novel to will also have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.This reality
With novel claimed range by claims and its equivalent thereof.
Claims (9)
1. a kind of low-noise exhauster for removing cooking fumes, which is characterized in that including shell (1), and be located in shell (1) inner cavity and contain shell
The shell (201) of the blower turbine assembly (2) and muffler (5) of body (201), blower turbine assembly is connect with shell (1) inner wall,
The connection of the shell (201) of muffler (5) and blower turbine assembly, and the shell (201) of blower turbine assembly and muffler (5) it
Between form seal cavity.
2. low-noise exhauster for removing cooking fumes described in accordance with the claim 1, which is characterized in that further include isolation board (6), the isolation board
(6) it is connect respectively with the shell (201) of muffler (5) and blower turbine assembly, so that muffler (5) and blower turbine assembly
Shell forms seal cavity between (201).
3. low-noise exhauster for removing cooking fumes described in accordance with the claim 1, which is characterized in that further include preceding acoustical panel (3), disappear before described
Soundboard (3) is located in shell (1), and preceding acoustical panel (3) connect with shell (1), and the advance air port phase with blower turbine assembly (2)
It is right.
4. low-noise exhauster for removing cooking fumes described in accordance with the claim 3, which is characterized in that before the preceding acoustical panel (3) and shell (1)
Angle between plate is 0-10 °, and the distance of preceding acoustical panel (3) bottom end to shell (1) foreboard is equal to or less than preceding acoustical panel
(3) top to shell (1) foreboard distance.
5. low-noise exhauster for removing cooking fumes described in accordance with the claim 3, which is characterized in that the preceding acoustical panel (3) is laid vertically.
6. low-noise exhauster for removing cooking fumes described in accordance with the claim 3, which is characterized in that further include rear acoustical panel (4), disappear after described
Soundboard (4) is located in shell (1), and rear acoustical panel (4) connect with shell (1), and the rear air inlet phase with blower turbine assembly (2)
It is right.
7. low-noise exhauster for removing cooking fumes according to claim 6, which is characterized in that after the rear acoustical panel (4) and shell (1)
Angle between plate is 0-10 °, and the distance of rear acoustical panel (4) bottom end to shell (1) back plate is equal to or less than rear acoustical panel
(4) top to shell (1) back plate distance.
8. low-noise exhauster for removing cooking fumes according to claim 7, which is characterized in that acoustical panel (4) is laid vertically after described.
9. low-noise exhauster for removing cooking fumes according to claim 6, which is characterized in that the preceding acoustical panel (3) and rear acoustical panel
(4) centrifugal fan noise is absorbed, the roundtrip noise between shell (1) and blower turbine assembly (2) is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228294.3U CN208750799U (en) | 2018-08-01 | 2018-08-01 | A kind of low-noise exhauster for removing cooking fumes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228294.3U CN208750799U (en) | 2018-08-01 | 2018-08-01 | A kind of low-noise exhauster for removing cooking fumes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208750799U true CN208750799U (en) | 2019-04-16 |
Family
ID=66059739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821228294.3U Withdrawn - After Issue CN208750799U (en) | 2018-08-01 | 2018-08-01 | A kind of low-noise exhauster for removing cooking fumes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208750799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758748A (en) * | 2018-08-01 | 2018-11-06 | 浙江帅康电气股份有限公司 | A kind of low-noise exhauster for removing cooking fumes and noise-reduction method |
-
2018
- 2018-08-01 CN CN201821228294.3U patent/CN208750799U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108758748A (en) * | 2018-08-01 | 2018-11-06 | 浙江帅康电气股份有限公司 | A kind of low-noise exhauster for removing cooking fumes and noise-reduction method |
| CN108758748B (en) * | 2018-08-01 | 2024-04-12 | 浙江帅康电气股份有限公司 | Low-noise range hood and noise reduction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190416 Effective date of abandoning: 20240412 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190416 Effective date of abandoning: 20240412 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |