CN208734606U - Denoising device, blower and kitchen ventilator - Google Patents
Denoising device, blower and kitchen ventilator Download PDFInfo
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- CN208734606U CN208734606U CN201820995267.2U CN201820995267U CN208734606U CN 208734606 U CN208734606 U CN 208734606U CN 201820995267 U CN201820995267 U CN 201820995267U CN 208734606 U CN208734606 U CN 208734606U
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Abstract
The utility model provides a kind of denoising device, blower and kitchen ventilator, is related to noise reducing apparatus technical field.The denoising device include tubular noise reduction components and cricoid air-ducting ring, noise reduction components by dowel and air-ducting ring it is affixed, formed between air-ducting ring and noise reduction components annular the first ventilation opening, noise reduction components air intake formation the second ventilation opening；The blower includes that spiral case, impeller and above-mentioned denoising device, impeller are installed on inside spiral case, and spiral case is equipped with the first air inlet, and the air-ducting ring of denoising device is connect with the edge of the first air inlet, and noise reduction components are inserted into the tubular inner cavity of impeller；The kitchen ventilator includes shell and above-mentioned blower, and shell is equipped with smoking port and smoke outlet, and blower is fixedly arranged on enclosure interior, and the first air inlet of blower is connected to smoking port, and the air outlet of blower is connected to smoke outlet.The excellent noise reduction effect of the denoising device, using the denoising device fan operation when the noise pollution that generates it is smaller.
Description
Technical field
The utility model relates to noise reducing apparatus technical field more particularly to a kind of denoising devices, blower and kitchen ventilator.
Background technique
The manufacturing process of Chinese tradition cooking culture includes decocting, frying, is fried, is roasting etc., is produced during making food big
The oil smoke of amount, and oil smoke is not only more serious to the environmental pollution in kitchen, but also kitchen operation personnel stay in oil smoke surroundings for a long time
It is larger to body harm, it is serious, or even cancer can be suffered from, therefore, kitchen ventilator is widely used among kitchen, kitchen ventilator system
Family kitchen is the electric appliance of generated oil smoke etc when exhaustion is cooked.
Kitchen ventilator operational process can generate noise pollution, and blower is the main source of noise, what blower generated when working
Noise mainly includes aerodynamic noise caused by gas flowing at mechanical noise and spiral case, impeller that motor operation generates, and user cooks
It is affected by noise when preparing food, it is possible to create the senses of discomfort such as headache, agitation or palpitation, therefore various noise reduction measures are applied to oil by people
In smoke machine, wherein noise reduction measure is concentrated mainly on the sides such as optimization and the passive sound-absorbing material of use to noise source of generation blower
Method is realized, and existing denoising device is poor to the noise reduction effect of blower, and noise pollution is still more serious when fan operation.
That is, existing denoising device noise reduction effect is poor, cause the noise pollution generated when fan operation still more serious.
Utility model content
The purpose of this utility model is to provide a kind of denoising device, blower and kitchen ventilators, to solve to deposit in the prior art
Denoising device noise reduction effect it is poor, the technical problem for causing the noise pollution generated when fan operation still more serious.
Denoising device provided by the utility model, noise reduction components and cricoid air-ducting ring including tubular, the noise reduction group
Part is affixed by dowel and the air-ducting ring, and the first ventilation of annular is formed between the air-ducting ring and the noise reduction components
Mouthful, the air intake of the noise reduction components forms the second ventilation opening.
Further, the noise reduction components include inner barrel and outer barrel interconnected, and the outer sleeve is set to the inner cylinder
Outside, formed between the inner cylinder and the outer cylinder annular accommodating chamber；It is all provided on the side wall of the inner cylinder and the outer cylinder
There is noise reduction hole, the outer cylinder is affixed by the dowel and the air-ducting ring.
Further, arc transition connects between the inner cylinder and the air intake of the outer cylinder.
Further, acoustical cotton is inlaid in the accommodating chamber.
Further, annular opening is formed between the inner cylinder and the outlet air end of the outer cylinder, is sealed on the annular opening
It is stifled to have capping.
Further, the air-ducting ring is set to the air intake end of the noise reduction components.
Further, the radial section of the air-ducting ring is the arcuation of evagination.
Another of the utility model is designed to provide a kind of blower, spiral case, impeller and above-mentioned denoising device, the leaf
Wheel is installed on inside the spiral case, and the spiral case is equipped with the first air inlet, tubular inner cavity one end of the impeller be second into
Air port, first air inlet are corresponding with second air inlet；The air-ducting ring of the denoising device and first air inlet
The edge connection of mouth, the noise reduction components are inserted into the tubular inner cavity of the impeller.
Further, the inner circle matching of the air-ducting ring is connected with cricoid insertion circle, and the free end of the insertion circle is inserted
Enter the tubular inner cavity of the impeller.
Another of the utility model is designed to provide a kind of kitchen ventilator, including shell and above-mentioned blower, the shell
It is equipped with smoking port and smoke outlet, the blower is fixedly arranged on the enclosure interior, the first air inlet of the blower and the suction
Mouth connection, the air outlet of the blower are connected to the smoke outlet.
The utility model denoising device, blower and kitchen ventilator have the beneficial effect that
Denoising device, blower and kitchen ventilator provided by the utility model, wherein denoising device includes for carrying out to air-flow
The noise reduction components of noise reduction process, for the air-ducting ring that is oriented to of air-flow entered in blower and for connect noise reduction components with
The dowel of air-ducting ring forms the first ventilation opening that blower interior is flowed directly into for air-flow, drop between noise reduction components and air-ducting ring
Make an uproar device air intake be equipped with for air-flow flow into noise reduction components inside the second ventilation opening；Wherein, blower includes being used to form gas
The spiral case, the impeller for certain driving air-flow flowing and above-mentioned convection current for flowing circulation passage enter the air-flow progress noise reduction process of blower interior
Denoising device, spiral case is equipped with the first air inlet for flowing into for air-flow；Wherein, kitchen ventilator includes for accommodating installation blower
The shell of oil smoke, the blower flowed for certain driving air-flow, what shell went out equipped with the smoking port entered for oil smoke flow and for oil smoke flow
Smoke outlet.
When generation oil smoke is needed using kitchen ventilator in kitchen, blower is opened, the wheel rotation in blower drives oil smoke casing
Oil smoke outside body flows into enclosure interior through smoking port, and flows into inside spiral case through the first air inlet, specifically, reach first into
After the guiding role of air-ducting ring, a part of oil smoke flows directly into the tubular of impeller oil smoke at air port through the first ventilation opening
Intracavitary portion, and followed by the discharge of the smoke outlet of the air outlet of blower and kitchen ventilator shell under the driving effect of impeller；It is another
Part oil smoke through the second ventilation opening flow into noise reduction components cylinder in, the part oil smoke after the noise reduction process of noise reduction components, from
The outlet air end of noise reduction components flows out, and the tubular inner cavity of impeller is entered, then also followed by the air outlet of blower and oil
Smoke machine can with smoke outlet discharge.
Firstly, the setting of air-ducting ring can be oriented to the cooking fume stream for flowing into blower interior through the first air inlet, with
The vortex etc. that oil smoke air-flow is generated in the first air inlet is reduced, to reduce the raw noise pollution of cooking fume miscarriage；Secondly, the
The cooking fume flow point for entering the first air inlet is divided into two parts, reduced through first by the setting of one ventilation opening and the second ventilation opening
Ventilation opening flows directly into the oil smoke throughput of the tubular inner cavity of impeller, that is, reduces ventilation quantity, the corresponding air-flow that reduces flows into leaf
Take turns noise pollution caused by inside；Again, the cooking fume stream flowed into inside noise reduction components through the second ventilation opening passes through noise reduction components
Noise reduction process after, flow into impeller internal, further decrease air-flow flowing caused by aerodynamic noise, triple noise reductions can be effective
The noise pollution that oil smoke air-flow flows through blower generation is reduced, the practicability of blower and the comfort of user are improved.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of internal structure of kitchen ventilator provided by the embodiment of the utility model；
Fig. 2 is the schematic cross-sectional view in the direction A-A in Fig. 1；
Fig. 3 is the three dimensional structure diagram of denoising device provided by the embodiment of the utility model；
Fig. 4 is the configuration schematic diagram of denoising device provided by the embodiment of the utility model.
Icon: 1- noise reduction components；2- air-ducting ring；3- dowel；The first ventilation opening of 4-；The second ventilation opening of 5-；6-
Spiral case；7- impeller；8- insertion circle；9- shell；11- inner cylinder；12- outer cylinder；13- accommodating chamber；14- noise reduction hole；15- inhales
Sound cotton；16- capping；17- connection edge；91- smoking port；92- smoke outlet；93- Oil Guide disk.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The present embodiment provides a kind of denoising devices, as shown in Figure 3 and Figure 4, noise reduction components 1 including tubular and cricoid lead
Solar or lunar halo 2, noise reduction components 1 are affixed by dowel 3 and air-ducting ring 2, and the first of annular is formed between air-ducting ring 2 and noise reduction components 1
The air intake of ventilation opening 4, noise reduction components 1 forms the second ventilation opening 5.
The present embodiment also provides a kind of blower, spiral case 6, impeller 7 and above-mentioned denoising device, and impeller 7 is installed in spiral case 6
Portion, spiral case 6 are equipped with the first air inlet, and tubular inner cavity one end of impeller 7 is the second air inlet, the first air inlet and the second air inlet
Mouth is corresponding；The air-ducting ring 2 of denoising device is connect with the edge of the first air inlet, and noise reduction components 1 are inserted into the tubular inner cavity of impeller 7
It is internal.
The present embodiment also provides a kind of kitchen ventilator, as depicted in figs. 1 and 2, including shell 9 and above-mentioned blower, sets on shell 9
There are smoking port 91 and smoke outlet 92, blower is fixedly arranged on inside shell 9, and the first air inlet of blower is connected to smoking port 91, blower
Air outlet be connected to smoke outlet 92.
Denoising device, blower and kitchen ventilator provided in this embodiment, wherein denoising device includes for dropping to air-flow
Make an uproar processing noise reduction components 1, for the air-ducting ring 2 that is oriented to of air-flow entered in blower and for connecting noise reduction components 1
With the dowel 3 of air-ducting ring 2, the first ventilation that blower interior is flowed directly into for air-flow is formed between noise reduction components 1 and air-ducting ring 2
Mouth 4, the air intake of denoising device are equipped with the second ventilation opening 5 flowed into inside noise reduction components 1 for air-flow；Wherein, blower includes using
In the spiral case 6, the impeller 7 for certain driving air-flow flowing and above-mentioned convection current for forming air flow passage enter the air-flow of blower interior into
The denoising device of row noise reduction process, spiral case 6 are equipped with the first air inlet flowed into for air-flow；Wherein, kitchen ventilator includes for holding
Naan fills the shell 9 of the oil smoke of blower, for the blower of certain driving air-flow flowing, and shell 9 is equipped with the smoking port entered for oil smoke flow
91 and for oil smoke flow go out smoke outlet 92.
When generation oil smoke is needed using kitchen ventilator in kitchen, blower, the 7 rotate driving oil smoke casing of impeller in blower are opened
Oil smoke outside body 9 flows into inside shell 9 through smoking port 91, and flows into inside spiral case 6 through the first air inlet, specifically, reaching
For the oil smoke of first air inlet after the guiding role of air-ducting ring 2, a part of oil smoke flows directly into impeller through the first ventilation opening 4
7 tubular inner cavity, and followed by the smoke evacuation of the air outlet of blower and kitchen ventilator shell 9 under the driving effect of impeller 7
Mouth 92 is discharged；Another part oil smoke is flowed into through the second ventilation opening 5 in the cylinder of noise reduction components 1, which passes through noise reduction components 1
Noise reduction process after, from the outlet air end of noise reduction components 1 flow out, enter the tubular inner cavity of impeller 7, then also followed by
The air outlet and kitchen ventilator of blower can with smoke outlet 92 be discharged.
Firstly, the setting of air-ducting ring 2 can be oriented to the cooking fume stream for flowing into blower interior through the first air inlet, with
The vortex etc. that oil smoke air-flow is generated in the first air inlet is reduced, to reduce the raw noise pollution of cooking fume miscarriage；Secondly, the
The cooking fume flow point that enter the first air inlet will be divided into two parts by the setting of one ventilation opening 4 and the second ventilation opening 5, be reduced through the
One ventilation opening 4 flows directly into the oil smoke throughput of the tubular inner cavity of impeller 7, that is, ventilation quantity is reduced, it is corresponding to reduce air-flow stream
Enter noise pollution caused by 7 inside of impeller；Again, the cooking fume stream inside noise reduction components 1 is flowed by drop through the second ventilation opening 5
It after the noise reduction process of component 1 of making an uproar, flows into inside impeller 7, further decreases aerodynamic noise caused by air-flow flowing, triple noise reductions
It can be effectively reduced the noise pollution that oil smoke air-flow flows through blower generation, the use of the practicability and user that improve blower is comfortable
Property.
Specifically, as shown in Figure 3 and Figure 4, noise reduction components 1 may include 11 He of inner cylinder interconnected in the present embodiment
Outer cylinder 12, outer cylinder 12 are sheathed on the outside of inner cylinder 11, and the accommodating chamber 13 of annular is formed between inner cylinder 11 and outer cylinder 12；11 He of inner cylinder
Noise reduction hole 14 is equipped on the side wall of outer cylinder 12, outer cylinder 12 is affixed by dowel 3 and air-ducting ring 2.It here is noise reduction components 1
A kind of concrete form, the oil smoke air-flow flowed into inside impeller 7 through the first ventilation opening 4 are contacted with the side wall of outer cylinder 12,12 side of outer cylinder
Noise reduction hole 14 on wall carries out noise reduction process to the high-frequency noises in oil smoke air-flow, flows into 7 inside oil smoke of impeller to reduce
The noise pollution of air-flow；The oil smoke air-flow flowed into inside noise reduction components 1 through the second ventilation opening 5 is contacted with the side wall of inner cylinder 11, interior
Noise reduction hole 14 on barrel side wall carries out noise reduction process to the high-frequency noises in the part oil smoke air-flow, to be further reduced stream
Enter the noise pollution in 7 inside cooking fume stream of impeller；In addition, accommodating chamber 13 is formed between inner cylinder 11 and outer cylinder 12, into receiving
Cooking fume stream in chamber 13 forms turbulent layer, reduces oil smoke air-flow between inner cylinder 11 and outer cylinder 12 and mutually circulates and bumps against generation noise
Degree, accordingly reduce aerodynamic noise.The diameter range in noise reduction hole 14 can be 1mm~2mm, specifically can be 2mm；Noise reduction
Pitch of holes between hole 14 may range between 6mm~10mm, specifically can be 8mm.
As shown in Figure 3 and Figure 4, dowel 3 can be four pieces, and four pieces of dowels 3 are uniformly arranged along the circumferential of outer cylinder 12, from
And improve the firmness of the connection between air-ducting ring 2 and outer cylinder 12；Specifically, dowel 3 can be triangle muscle.
In the present embodiment, as shown in Fig. 2, arc transition connects between inner cylinder 11 and the air intake of outer cylinder 12.Through on spiral case 6
The cooking fume that flows into of the first air inlet flow through the ffp filter position between inner cylinder 11 and outer cylinder 12 and be divided into two parts, respectively
It flows into the first ventilation opening 4 and the second ventilation opening 5, arc transition connection is oriented to cooking fume stream, effectively reduces cooking fume
The occurrence of flowing and collide caused stream swirl at the position and noise reduction components 1, and generating aerodynamic noise.
In the present embodiment, as shown in Figure 2 and Figure 4, acoustical cotton 15 can be inlaid in accommodating chamber 13.Through the first ventilation opening
4 flow into the oil smoke air-flow in 12 outside of outer cylinder, the cooking fume stream flowed on the inside of inner cylinder 11 through the second ventilation opening 5 passes through noise reduction hole 14
It after noise reduction process, can be acted on acoustical cotton 15, the high-frequency noise in oil smoke air-flow is carried out noise reduction process by acoustical cotton 15, into one
Step reduces the aerodynamic noise in oil smoke air-flow.Specifically, acoustical cotton 15 can use resin expanded, melamine foamed plastic or poly- ammonia
The materials such as ester are made, and the sound-absorption coefficient NRC of acoustical cotton 15 can be not less than 0.6.
In the present embodiment, as shown in figure 4, forming annular opening, annular opening between inner cylinder 11 and the outlet air end of outer cylinder 12
Upper closure has capping 16.Closed accommodating chamber 13 is collectively formed with inner cylinder 11 and outer cylinder 12 in capping 16, and acoustical cotton 15 is embedded in this
It inside accommodating chamber 13, falls off out of accommodating chamber 13 to reduce fan operation process acoustical cotton 15, reduces noise reduction effect and possibility
The occurrence of resulting in blockage to component other in blower.Specifically, can pass through between capping 16 and inner cylinder 11 or outer cylinder 12
Threaded fastener is detachable to be fixedly connected.
In the present embodiment, air-ducting ring 2 can be set to the air intake end of noise reduction components 1.The on air-ducting ring 2 and spiral case 6
The edge of one air inlet is correspondingly connected with, plane where the air intake of noise reduction components 1 and the first air inlet is consistent or retraction first into
Inside air port, the oil smoke air-flow for flowing to the first air inlet of spiral case 6 can smoothly flow into the first ventilation opening 4 or the second ventilation
In mouth 5, reduces noise reduction components 1 and protrude the first air inlet and cause oil smoke air-flow to flow into 5 difficulty of the second ventilation opening and increase, reduction drop
Make an uproar device noise reduction effect the occurrence of.
Specifically, the radial section of air-ducting ring 2 can be the arcuation of evagination.It here is a kind of concrete form of air-ducting ring 2,
Air-ducting ring 2 and the edge of the first air inlet are connected and fixed, and are existed with the oil smoke air-flow of plane angle at an acute angle where the first air inlet
First air inlet along air-ducting ring 2 arcuation wind-guiding face flow into the first air inlet along, thus reduce oil smoke air-flow flow into first into
Air port and its edge bending larger the occurrence of causing to be vortexed, generating aerodynamic noise.Specifically, 2 radial section of air-ducting ring
Arc radius range can be between 10mm~20mm, specifically, can be 14mm.
In the present embodiment, as shown in Figure 3 and Figure 4, the outer circle of air-ducting ring 2 can be circumferentially with connection along 17 along it, wind-guiding
Circle 2 is connect along 17 with spiral case 6 by connection, so that it is guaranteed that the round and smooth degree of 2 wind-guiding face of air-ducting ring, mutually it is ensured that air-ducting ring 2 is led
Wind effect.
In the present embodiment, as shown in figure 4, the inner circle of air-ducting ring 2, which can match, is connected with cricoid insertion circle 8, insertion circle 8
Free end insertion impeller 7 tubular inner cavity.Impeller 7 is mounted on the inside of spiral case 6, the second air inlet of impeller 7 and snail
There are gap between first air inlet of shell 6, noise reduction components 1 are mounted on spiral case 6, the edge of air-ducting ring 2 and the first air inlet
Matching connection, the insertion circle 8 of 2 inner circle of air-ducting ring is inwardly inserted into the first air inlet, and is inserted into the second air inlet of impeller 7,
The oil smoke air-flow flowed into through the first ventilation opening 4 can be directly entered impeller 7 through the second air inlet under the guiding role of insertion circle 8
Tubular inner cavity, thus reduce the oil smoke air-flow that is flowed into through the first ventilation opening 4 from the first air inlet and the second air inlet it
Between gap flow into, reach outside impeller 7, to the water conservancy diversion of impeller 7 cause to upset and the occurrence of generate aerodynamic noise；This
Outside, the setting of insertion circle 8 can effectively reduce the hydrostatic pressures losses of blower, correspondingly increase the total pressure efficiency of blower.The depth of insertion circle 8
Degree may range from 6mm~8mm, specifically, can be 6mm.
In the present embodiment, as shown in Figure 1, can be equipped with Oil Guide disk 93 in shell 9, Oil Guide disk 93 is located at the bottom of blower
6 bottom of spiral case in portion, blower is equipped with oil leaking hole, and Oil Guide disk 93 is corresponding with the position of oil leaking hole；Oil Guide disk 93 is obliquely installed, and is led
The lower one end of food tray 93 also is provided with oil leaking hole, and shell 9 is equipped with oil collection box, and oil collection box is located at the bottom of Oil Guide disk 93, and with
Oil leak hole site on Oil Guide disk 93 is corresponding.The greasy dirt that oil smoke air-flow adheres to generation in blower flows to snail under the effect of gravity
The bottom of shell 6, the oil leaking hole through 6 bottom of spiral case, which leaks out, to be instilled in Oil Guide disk 93, and greasy dirt is under the effect of gravity in Oil Guide disk 93
Flowing enters in oil collection box through the oil leaking hole outflow on Oil Guide disk 93, and is temporarily stored in oil collection box, uses a period of time
Afterwards, the cleaning oil pollution in oil collection box can be fallen continue to use by user, so that the greasy dirt reduced inside spiral case 6 blocks up in spiral case 6
The occurrence of filling in, influencing blower normal use；Further, it is also possible to which the greasy dirt reduced in shell 9 drips directly down, to oil smoke
It is polluted caused by hearth and cookware below machine.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution.
Claims (9)
1. a kind of denoising device, which is characterized in that noise reduction components (1) and cricoid air-ducting ring (2) including tubular, the noise reduction
Component (1) includes inner cylinder interconnected (11) and outer cylinder (12), and the outer cylinder (12) is sheathed on the outside of the inner cylinder (11),
The accommodating chamber (13) of annular is formed between the inner cylinder (11) and the outer cylinder (12)；The inner cylinder (11) and the outer cylinder (12)
Side wall on be equipped with noise reduction hole (14), the outer cylinder (12) by dowel (3) and the air-ducting ring (2) it is affixed, it is described to lead
The first ventilation opening (4) of annular, the air intake shape of the noise reduction components (1) are formed between solar or lunar halo (2) and the noise reduction components (1)
At the second ventilation opening (5).
2. denoising device according to claim 1, which is characterized in that the air inlet of the inner cylinder (11) and the outer cylinder (12)
Arc transition connects between end.
3. denoising device according to claim 1, which is characterized in that be inlaid with acoustical cotton in the accommodating chamber (13)
(15)。
4. denoising device according to claim 3, which is characterized in that the outlet air of the inner cylinder (11) and the outer cylinder (12)
Annular opening is formed between end, blocking on the annular opening there are capping (16).
5. denoising device described in any one of -4 according to claim 1, which is characterized in that the air-ducting ring (2) is set to described
The air intake end of noise reduction components (1).
6. denoising device described in any one of -4 according to claim 1, which is characterized in that the radial direction of the air-ducting ring (2) is cut
Face is the arcuation of evagination.
7. a kind of blower, which is characterized in that spiral case (6), impeller (7) and noise reduction of any of claims 1-6 dress
It sets, the impeller (7) is installed on the spiral case (6) inside, and the spiral case (6) is equipped with the first air inlet, the impeller (7)
Tubular inner cavity one end is the second air inlet, and first air inlet is corresponding with second air inlet；The denoising device
Air-ducting ring (2) is connect with the edge of first air inlet, and the noise reduction components (1) are inserted into the tubular inner cavity of the impeller (7)
It is internal.
8. blower according to claim 7, which is characterized in that the inner circle matching of the air-ducting ring (2) is connected with cricoid
The tubular inner cavity of the impeller (7) is inserted into the free end of insertion circle (8), the insertion circle (8).
9. a kind of kitchen ventilator, which is characterized in that including blower described in shell (9) and claim 7 or 8, on the shell (9)
Equipped with smoking port (91) and smoke outlet (92), the blower is fixedly arranged on the shell (9) inside, the first air inlet of the blower
It is connected to the smoking port (91), the air outlet of the blower is connected to the smoke outlet (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820995267.2U CN208734606U (en) | 2018-06-26 | 2018-06-26 | Denoising device, blower and kitchen ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820995267.2U CN208734606U (en) | 2018-06-26 | 2018-06-26 | Denoising device, blower and kitchen ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208734606U true CN208734606U (en) | 2019-04-12 |
Family
ID=66026133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820995267.2U Active CN208734606U (en) | 2018-06-26 | 2018-06-26 | Denoising device, blower and kitchen ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208734606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488103A (en) * | 2018-06-26 | 2018-09-04 | 杭州老板电器股份有限公司 | Denoising device, wind turbine and kitchen ventilator |
| CN114688638A (en) * | 2020-12-25 | 2022-07-01 | 广东美的白色家电技术创新中心有限公司 | Fan structure and air conditioner |
-
2018
- 2018-06-26 CN CN201820995267.2U patent/CN208734606U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488103A (en) * | 2018-06-26 | 2018-09-04 | 杭州老板电器股份有限公司 | Denoising device, wind turbine and kitchen ventilator |
| CN114688638A (en) * | 2020-12-25 | 2022-07-01 | 广东美的白色家电技术创新中心有限公司 | Fan structure and air conditioner |
| CN114688638B (en) * | 2020-12-25 | 2023-09-01 | 广东美的白色家电技术创新中心有限公司 | Fan structure and air conditioner |
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