CN109340192A - Kitchen ventilator - Google Patents
Kitchen ventilator Download PDFInfo
- Publication number
- CN109340192A CN109340192A CN201811130390.9A CN201811130390A CN109340192A CN 109340192 A CN109340192 A CN 109340192A CN 201811130390 A CN201811130390 A CN 201811130390A CN 109340192 A CN109340192 A CN 109340192A
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- CN
- China
- Prior art keywords
- acoustical panel
- baffle
- kitchen ventilator
- guiding cover
- ventilator according
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ventilation (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a kind of kitchen ventilators, comprising: body and baffle, the body is interior to have air stream drives module and smoke guiding cover, and the smoke guiding cover is equipped with the smoke inlet for being connected to the air stream drives module；The baffle is opposite with the smoke inlet, and has between the baffle and the smoke guiding cover into the channel of cigarette, wherein denoising structure is equipped between the baffle and the smoke guiding cover.Kitchen ventilator according to an embodiment of the present invention, sound-deadening and noise-reducing effect are good.
Description
Technical field
The present invention relates to kitchen appliance field, in particular to a kind of kitchen ventilator.
Background technique
In the product development process of range hood, air quantity, wind pressure are become greatly, and noise then develops to mute direction.?
Mute aspect removes outside the measure of air duct optimization, and the modes such as active noise reduction, passive noise reduction are gradually applied in range hood.
And air duct optimization is in terms of noise reduction than preferably a kind of mode, mainly air duct optimization influences less the performance of blower, but
Generally there is ideal effect to noise reduction.
In near-absorption type fume-exhausting, most of spiral case can be directly connected to deflector or other fairings, can be with
The cyclone that flue gas generates is reduced, meanwhile, in the structure of prior art, there is cold plate structure, main rise expands negative pressure
The effect in area and separation oil smoke；But the space structure for underusing air inlet carries out noise reduction.
Cold plate mainly expands smoking effect in the prior art, but is an increase noise in terms of noise
A drawback, since cold plate affects the path of air-flow, cause air-flow fluency reduce, increase air inlet generate vortex
Possibility, cause induction noise to become larger, reduce user to the use feeling of kitchen ventilator.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of kitchen ventilator, and sound-deadening and noise-reducing effect is good.
Kitchen ventilator according to an embodiment of the present invention, comprising: body and baffle, have in the body air stream drives module and
Smoke guiding cover, the smoke guiding cover are equipped with the smoke inlet for being connected to the air stream drives module；The baffle and the smoke inlet phase
It is right, and have between the baffle and the smoke guiding cover into the channel of cigarette, wherein it is set between the baffle and the smoke guiding cover
There is denoising structure.
Kitchen ventilator according to an embodiment of the present invention, sound-deadening and noise-reducing effect are good.
In addition, kitchen ventilator according to the above embodiment of the present invention, can also have the following additional technical features:
In some embodiments, the denoising structure includes at least one layer being arranged between the baffle and the smoke guiding cover
Acoustical panel, and there is bloop on the acoustical panel.
In some embodiments, the denoising structure includes the first acoustical panel set on the baffle back side, and described first disappears
Cavity is formed between soundboard and the baffle.
In some embodiments, increase sound-absorbing material in the cavity that is formed between the first acoustical panel and the baffle.
In some embodiments, the week of first acoustical panel along being connected with the baffle, and first acoustical panel from
Week along to gradually raised relative to the baffle on the direction at center, to form the cavity.
In some embodiments, at least part on all edges of the baffle is equipped with flange, all edges of first acoustical panel
At least part be embedded in the flange.
In some embodiments, first acoustical panel is set to the middle position of the baffle.
In some embodiments, the denoising structure further includes the second acoustical panel, and the acoustical panel is set adjacent to the smoke guiding cover
It sets, and second acoustical panel is along the direction of the axis around smoke inlet arrangement.
In some embodiments, second acoustical panel is hollow and gradually tapers up along air inlet direction.
In some embodiments, preset distance is spaced apart between second acoustical panel and the smoke guiding cover.
In some embodiments, the spacing between second acoustical panel and the smoke guiding cover is at 20 millimeters or more.
In some embodiments, the denoising structure include the first acoustical panel and the second acoustical panel, first acoustical panel and
Second acoustical panel is arranged along from the baffle to the direction interval of the smoke guiding cover, and first acoustical panel is set to described
The baffle back side, cavity is formed between first acoustical panel and the baffle, second acoustical panel leads cigarette adjacent to described
It is provide with and sets, and second acoustical panel is along the direction of the axis around smoke inlet arrangement.
In some embodiments, the spacing between first acoustical panel and second acoustical panel is at 40 millimeters to 60 millimeters
In the range of.
In some embodiments, the punching rate of the acoustical panel is in the range of 1% to 5%；And/or the acoustical panel is worn
Hole aperture is within 2 millimeters；And/or the thickness of the acoustical panel is within 2 millimeters.
In some embodiments, the body is equipped with support rod, at least part and the gear in the acoustical panel
Plate is all connected to the support rod.
Detailed description of the invention
Fig. 1 is the schematic diagram of kitchen ventilator described in the present invention one.
Fig. 2 is the cross-sectional view of kitchen ventilator shown in Fig. 1.
Fig. 3 is the local perspective view after kitchen ventilator shown in Fig. 1 is splitted.
Fig. 4 is the bottom view of the kitchen ventilator of one embodiment of the invention.
Fig. 5 is the baffle of one embodiment of the invention and the cooperation schematic diagram of denoising structure.
Fig. 6 is cross-sectional view of the Fig. 5 in section A-A direction.
Fig. 7 is cross-sectional view of the Fig. 5 in section B-B direction
Appended drawing reference: kitchen ventilator 100, body 1, rack coaming plate 11, rack foreboard 12, operation panel 13, air stream drives mould
Block 14, spiral case 141, impeller 142, motor 143, check-valves 15, connection structure, support rod 16, smoke guiding cover 17, smoke inlet 101,
Baffle 2, flange 21, denoising structure 3, the first acoustical panel 31, the second acoustical panel 32.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In conjunction with Fig. 1 to Fig. 3, kitchen ventilator 100 according to an embodiment of the present invention, comprising: body 1 and baffle 2.
Wherein, there is air stream drives module 14 and smoke guiding cover 17, smoke guiding cover 17 is equipped with connection air stream drives mould in body 1
The smoke inlet 101 of block 14 generates negative under the driving effect of air stream drives module 14 at the smoke inlet 101 of smoke guiding cover 17
Pressure, under the action of negative pressure, flue gas will be transported to smoke inlet 101 along smoke guiding cover 17 to flue gas, then processing in body 1 again
After send out.Baffle 2 and smoke inlet 101 are opposite, and have between baffle 2 and smoke guiding cover 17 into the channel of cigarette, and flue gas is by baffle 2
Stop, it will enter the channel into cigarette around baffle 2, be then transported to smoke inlet 101.
Wherein, denoising structure 3 is equipped between baffle 2 and smoke guiding cover 17, flue gas will do it and disappear when passing through denoising structure 3
Sound, thus realize the purpose of sound-deadening and noise-reducing, the noise being effectively reduced in 100 course of work of kitchen ventilator.
Kitchen ventilator 100 according to an embodiment of the present invention, due to the denoising structure 3 of setting, flue gas is by noise reduction process
In the process, the noise generated in the flue gas process of circulation can be eliminated, to play the purpose of sound-deadening and noise-reducing, smoke machine is more
It is run under mute environment, is supplied to the good running environment of smoke machine.
It should be noted that when due to smoke inlet smoke guiding cover a part, should also be as between baffle 2 and smoke inlet
It is interpreted as between baffle 2 and smoke guiding cover.
Denoising structure 3 of the invention can have different forms, for example, by denoising structures 3 such as sponges, it can be effective
The noise of ground reduction kitchen ventilator 100.Furthermore it is also possible to using other denoising structures 3, such as orifice plate, muffler etc..This
Invention is mainly illustrated for using orifice plate noise reduction.
In conjunction with Fig. 2-Fig. 7, denoising structure 3 includes at least one layer of acoustical panel being arranged between baffle 2 and smoke guiding cover 17, and
There is bloop on acoustical panel.Portion of the air-flow when passing through the space between baffle 2 and smoke guiding cover 17, during airflow
Noise reduction is divided to be eliminated, so as to effectively sound-deadening and noise-reducing.
In addition, the acoustical panel for including in denoising structure 3 can be one layer, or multilayer, the acoustical panel of multilayer can be with
Combination forms hollow chamber, cavity can also be cooperatively formed with other structures, for example, acoustical panel combining formation with baffle 2
Cavity, or acoustical panel is combined to form cavity with smoke guiding cover 17.
For example, in some embodiments of the invention, denoising structure 3 includes setting in conjunction with Fig. 2, Fig. 3 and Fig. 6 and Fig. 7
The first acoustical panel 31 in 2 back side of baffle, is formed with cavity between the first acoustical panel 31 and baffle 2.Wherein, the back side of baffle 2
Refer to, towards the surface of 101 side of smoke inlet on baffle 2.
For air-flow when entering smoke inlet 101 via the space between baffle 2 and smoke guiding cover 17, air-flow will pass through first
Acoustical panel 31 can enter the cavity between the first acoustical panel 31 and baffle 2 by a part of air-flow of the first acoustical panel 31
Interior, since air-flow after bloop by having entered in a biggish space, the volume of flue gas increases, gas expansion meeting
The energy for weakening air-flow, to reduce noise.
Preferably, increase sound-absorbing material in the cavity that can be formed between the first acoustical panel and baffle, for example, sponge
Deng.Wherein, the sound-absorbing material between the first acoustical panel and baffle, which is arranged in, can fill entire cavity, be also possible to utilize suction
Sound material fills a part in the space between the first acoustical panel and baffle.Wherein, sound-absorbing material also belongs to the one of denoising structure
Part is not provided with sound-absorbing material certainly in cavity, it is possible to have good erasure effect.
Further, in conjunction with Fig. 1, Fig. 2 and Fig. 6 and Fig. 7, the week edge of the first acoustical panel 31 is connected with baffle 2, and the
One acoustical panel 31 is gradually raised relative to baffle 2 along the direction from week edge to center, to form cavity.Air-flow is along
When one acoustical panel 31 circulates, since the first acoustical panel 31 is from week edge to center element protrusion, air-flow also will be along the first acoustical panel
31 flowings, to improve the diversion effect to flue gas, effectively improve the circulation of gas air-flow towards 101 water conservancy diversion of smoke inlet
Efficiency, moreover, making air-flow steady, the noise of generation is small.
Preferably, referring to Fig. 5, at least part on all edges of baffle 2 is equipped with flange 21, all edges of the first acoustical panel 31
In at least part insertion flange 21.So that baffle 2 steadily links together with the first acoustical panel 31.
In addition, the flange 21 on 2 weeks edges of baffle can be formed for the edge bending of baffle 2, it is also possible to pass through on baffle 2
It is fixedly connected with 21 structure of flange, forms 21 structure of flange, it is of course also possible to use other modes form, for example, by baffle 2
A part be stamped and formed out flange 21.
In addition, baffle 2 is all along 21 structure of flange that can form annular, it can also be by a part on all edges of baffle 2
Be formed as 21 structure of flange, for example, baffle 2 is horizontally disposed quadrangle plate, can be formed in the left and right sides of baffle 2
First acoustical panel 31 is installed on baffle 2 by the flange 21 so as to facilitate.
Preferably, the week of the first acoustical panel 31, can be by 31 weeks edges of the first acoustical panel along corresponding folded edges are formed with
This side structure cooperate on the inside of 21 structure of flange.
In addition, the first acoustical panel 31 in the present invention and the relative position between baffle 2 can use feelings according to actual
Condition is rotated, for example, referring to Fig. 7, by all edges of the first acoustical panel 31 connection baffle 2；It, can also be by first referring to Fig. 6
The middle position of acoustical panel 31 connection and baffle 2.It is of course also possible to by the first acoustical panel 31 package baffle 2, and first gear
A part of plate 2 is between baffle 2 and smoke guiding cover 17.
In addition, it is necessary to explanation, the middle position of baffle refers in the present invention, along the middle part of predetermined direction on baffle,
For example, the middle position of baffle may include: the middle position on baffle in left-right direction by taking horizontally disposed baffle as an example；
Or the middle position on baffle along the longitudinal direction；Or on baffle along the longitudinal direction with the middle position of left and right directions；Or gear
Along the middle position in other directions on plate.
In conjunction with Fig. 1 to Fig. 7, in some embodiments of the invention, denoising structure 3 further includes the second acoustical panel 32, noise reduction
Plate is arranged adjacent to smoke guiding cover 17, and the second acoustical panel 32 is arranged along the direction of the axis around smoke inlet 101.It can be neighbouring
The position of smoke guiding cover 17 forms denoising structure 3, to play the role of noise reduction.
In addition, the edge airflow of fluid is easy to produce turbulent flow in the gas process of circulation, so that noise is generated, therefore, this
First acoustical panel 31 and the second acoustical panel 32 can be set simultaneously in invention, flue gas at least partly from 31 He of the first acoustical panel
Pass through between second acoustical panel 32, the noise generated in the flue gas process of circulation can be effectively reduced, effectively realizes noise reduction drop
It makes an uproar, and improves the effect of sound-deadening and noise-reducing.
Further, the second acoustical panel 32 is hollow and gradually tapers up along air inlet direction.Convenient for carrying out water conservancy diversion to flue gas.
Advantageously, be spaced apart preset distance between the second acoustical panel 32 and smoke guiding cover 17, it is preferable that the second acoustical panel 32 with
Spacing between smoke guiding cover 17 is at 20 millimeters or more.That is, the distance between the first acoustical panel 31 and smoke guiding cover 17 can be with
It is 20 millimeters, 25 millimeters, 30 millimeters, 50 millimeters, 150 millimeters etc..
Certainly, the gap in the present invention between the second acoustical panel 32 and smoke guiding cover 17 is also not limited only to this, can also incite somebody to action
Gap setting between second acoustical panel 32 and smoke guiding cover 17 at less than 20 millimeters, for example, by the second acoustical panel 32 with lead cigarette
Gap setting between cover 17 is at 0 millimeter, 5 millimeters, 15 millimeters etc..
In addition, can also form cavity between the second acoustical panel 32 and smoke guiding cover 17, this cavity may be internal empty
Between the big small shape in two sides (along the two sides of airintake direction) space, or space is consistent or different otherwise everywhere
The shape of cause, if not considering bloop, the cavity between the second acoustical panel 32 and smoke guiding cover 17 can be closed cavity,
It can be open cavity.
Such as Fig. 1 to Fig. 7, in some embodiments of the invention, denoising structure 3 includes the first acoustical panel 31 and the second noise reduction
Plate 32, the first acoustical panel 31 and the second acoustical panel 32 are arranged along the direction interval from baffle 2 to smoke guiding cover 17, the first acoustical panel
31 are set to 2 back side of baffle, cavity are formed between the first acoustical panel 31 and baffle 2, the second acoustical panel 32 is adjacent to smoke guiding cover 17
Setting, and the second acoustical panel 32 is arranged along the direction of the axis around smoke inlet 101.It leads cigarette to further improve and disappears
The effect of sound.
In addition, other acoustical panels can also be arranged between the first acoustical panel 31 and the second acoustical panel 32, for example, first
One layer of acoustical panel is set between acoustical panel 31 and the second acoustical panel 32；Or the first acoustical panel 31 and the second acoustical panel 32 it
Between be arranged multilayer acoustical panel.Wherein, all acoustical panels can be set into extends along from baffle 2 to the direction of smoke guiding cover 17,
Or acoustical panel is arranged to normal and extends along from baffle 2 to the direction of smoke guiding cover 17.
Preferably, the spacing between the first acoustical panel 31 and the second acoustical panel 32 is in the range of 40 millimeters to 60 millimeters.
For example, the spacing between the first acoustical panel 31 and the second acoustical panel 32 can be 40 millimeters, 43 millimeters, 56 millimeters or 60 millimeters
Deng.Certainly, the spacing in the present invention between the first acoustical panel 31 and the second acoustical panel 32 can also be greater than 60 millimeters or less than 40
Millimeter, for example, the spacing between the first acoustical panel 31 and the second acoustical panel 32 is arranged to 0 millimeter, 30 millimeters, 70 millimeters etc.
Deng the first acoustical panel 31 and the second acoustical panel 32 can also be combined, make the first acoustical panel 31 and the second acoustical panel 32
Between formed along air inlet direction the closed cavity in two sides.
It should be noted that the spacing in the present invention, refers to minimum spacing between the two, for example, above-mentioned first disappears
Spacing between soundboard 31 and the second acoustical panel 32 refers to the minimum spacing between the first acoustical panel 31 and the second acoustical panel 32.
Preferably, the spacing in the present invention is also understood that as the spacing of corresponding position between the two, with the first acoustical panel
31 and the second spacing between acoustical panel 32 between 40 millimeters to 60 millimeters for, it can be understood as, the first acoustical panel 31
The spacing between corresponding position in any place and the second acoustical panel 32 is between 40 millimeters to 60 millimeters.
Wherein, corresponding position can be along the opposite position of 101 axis direction of smoke inlet is parallel to, and be also possible to hanging down
, can also be with other corresponding relationships directly in position opposite on acoustical panel direction, the present invention all corresponding passes impossible to exhaust
System, those skilled in the art can correspond to according to corresponding relationship existing in the prior art, it should also in guarantor of the invention
It protects in range.
It can be advantageous to be arranged to the mode being parallel to each other in the first acoustical panel 31 and the second acoustical panel 32, can also incite somebody to action
First acoustical panel 31 and the second acoustical panel 32 are arranged to the form with angle.
In addition, the above-mentioned explanation to spacing between the first acoustical panel 31 and the second acoustical panel 32, is equally applicable to second and disappears
The explanation of spacing between soundboard 32 and smoke guiding cover 17.
Certainly, the above-mentioned explanation to spacing, only some specific embodiments of the invention, are protected to the present invention
Protect the limitation of range.
In some embodiments of the invention, the punching rate of acoustical panel is in the range of 1% to 5%.In other words, acoustical panel
The ratio of the area of the gross area and acoustical panel of upper all bloops is in the range of 1% to 5%.
The piercing aperture of acoustical panel is within 2 millimeters, in addition, the perforation (bloop) on acoustical panel in the present invention can also
Think non-circular other shapes, the wide place's size of maximum of bloop can be arranged within 2 millimeters.
In addition, the thickness of acoustical panel is within 2 millimeters in the present invention.The thickness of acoustical panel, the punching rate of acoustical panel and
The reasonable setting of piercing aperture on acoustical panel has more apparent facilitation effect to sound-deadening and noise-reducing of the present invention, above-mentioned to size
The description of relationship is only a specific embodiment of the invention, is not construed as limiting the scope of the present invention, for example,
The punching rate of acoustical panel can be arranged in the range of less than 1% or greater than 5% completely in this；It can also wearing acoustical panel
Hole aperture is disposed greater than 2 millimeters；The thickness of acoustical panel can also be disposed greater than 2 millimeters.
In some embodiments of the invention, body 1 is equipped with support rod 16, at least part and gear in acoustical panel
Plate 2 is all connected to support rod 16.By setting support rod 16, the fixation of baffle 2 and acoustical panel can be convenient, it certainly, can
To there is support rod 16 to fix whole acoustical panels, at least part of acoustical panel can also be fixed using other modes,
For example, by welding, screwing, the modes such as being bolted, snapping connection, acoustical panel can also be fixed on baffle 2,
On smoke guiding cover 17 etc..
In conjunction with Fig. 1 to Fig. 3, in some embodiments of the invention, smoke inlet 101 is opened wide downwards, and baffle 2 is located at smoke inlet
101 underface.
Kitchen ventilator 100 of the invention can reduce the big problem of 100 noise of kitchen ventilator, improve the fluency of air-flow, reduce
Vortex.
It is the sectional view of 100 mechanism of range hood, including rack foreboard 12, operation panel in conjunction with Fig. 1 to Fig. 3
13, the connection structure of smoke guiding cover 17, denoising structure 3, denoising structure 3 and kitchen ventilator 100, rack coaming plate 11, spiral case 141, impeller
142, motor 143 and check-valves 15.
In Fig. 2, spiral case 141 and impeller 142 and motor 143 constitute the centrifugal blower knot of the main core of kitchen ventilator 100
The rack framework of the composition kitchen ventilator 100 such as structure, rack foreboard 12 and rack coaming plate 11, control panel, smoke guiding cover 17.
When range hood 100 is powered, motor 143 rotates the rotation of impeller 142 and generates suction, so that outside air inlet
Flue gas can be entered in spiral case 141 by denoising structure 3, and acted on by the centrifugal rotation of impeller 142, separation oil smoke is simultaneously
It is discharged from check-valves 15.
This technology invents the denoising structure 3 for being mainly concerned with the air inlet for being placed on smoke machine lower part, can to enter the wind
Air flow path perforated plate is set, acted on by the noise elimination noise reduction of perforated plate so that be able to carry out noise reduction during air inlet,
Increased perforation board channel extends air intake passage simultaneously, and the channel by extending air inlet carries out water conservancy diversion to air-flow, to enhance
The effect of noise reduction.
Fig. 5 and Fig. 6 is the front view and cross-sectional view of denoising structure 3 respectively, and denoising structure 3 mainly has cold plate (i.e. baffle
2), lower perforated plate (i.e. the first acoustical panel 31) and upper perforated plate (i.e. the second acoustical panel 32) composition, wherein upper perforated plate is worn under
Channel between orifice plate is air intake passage, and lower perforated plate is stuck on cold plate by card slot, and upper perforated plate is connected by stay bolt and tied
Structure is connect with cold plate, and is fixed on kitchen ventilator 100, and upper perforated plate is basic to keep the two center phase above lower perforated plate
On the same axis to position.
For perforated plate structure, the punching rate of perforated plate will between 1% to 5%, perforated plate pore size 2mm with
It is interior, plate thickness is perforated within 2mm, perforates plate spacing up and down between 40mm~60mm, noise reduction effect is optimal.
Due to needing to expand negative pressuren zone, enhances smoking effect, needed between upper perforated plate and smoke guiding cover 17 certain
Airflow channel, interchannel is away from 20mm or more；
The guide functions of the present invention with this configuration can make air inlet more smooth, reduce eddy current crack.Pass through structure
Perforated plate is evenly dispersed to air-flow progress, while reducing noise using the noise elimination effect of perforated plate in cold plate；
The perforated plate of denoising structure 3 can be curved-surface structure, be the smooth curved surface for optimizing water conservancy diversion as far as possible, fairshaped to wear
Orifice plate can play more effective guide functions, to reduce noise；
The denoising structure 3 mentioned in the technical scheme, connection type are bolted to connection in kitchen ventilator 100
Bottom, other connection types also can achieve identical effect, and especially by liftable connection type, it is connected,
The connection structure of cold plate and perforated plate is raised and lowered in different gears, can reach better effect；
Equally in the technical scheme, lower perforated plate and condensation side are able to ascend noise reduction effect for acoustical cotton is increased；
The denoising structure 3 in air inlet is provided in the present invention, denoising structure 3 can be that perforated plate and cold plate form
Noise elimination noise reduction structure 3, denoising structure 3 can extend air intake passage, and there is perforated plate noise elimination structure and water conservancy diversion on a passage
Interactive construction.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Person implicitly includes at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two,
Three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation "
Equal terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside part, unless otherwise restricted clearly.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature
But fisrt feature is directly above or diagonally above the second feature above the second feature " above ", " above " and " above ", or only table
Show that first feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
Fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
Combination and combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (15)
1. a kind of kitchen ventilator characterized by comprising
Body, the body is interior to have air stream drives module and smoke guiding cover, and the smoke guiding cover, which is equipped with, is connected to the air stream drives
The smoke inlet of module；
Baffle, the baffle is opposite with the smoke inlet, and has between the baffle and the smoke guiding cover into the channel of cigarette,
Wherein, denoising structure is equipped between the baffle and the smoke guiding cover.
2. kitchen ventilator according to claim 1, which is characterized in that the denoising structure includes being arranged in the baffle and institute
At least one layer of acoustical panel between smoke guiding cover is stated, and there is bloop on the acoustical panel.
3. kitchen ventilator according to claim 2, which is characterized in that the denoising structure includes being set to the baffle back side
First acoustical panel is formed with cavity between first acoustical panel and the baffle.
4. kitchen ventilator according to claim 3, which is characterized in that all edges and the baffle phase of first acoustical panel
Even, and first acoustical panel is gradually raised relative to the baffle along the direction from week edge to center, to form the sky
Chamber.
5. kitchen ventilator according to claim 4, which is characterized in that at least part on all edges of the baffle is equipped with and turns over
At least part on side, all edges of first acoustical panel is embedded in the flange.
6. kitchen ventilator according to claim 3, which is characterized in that first acoustical panel is set to the interposition of the baffle
It sets.
7. kitchen ventilator according to claim 3, which is characterized in that in the cavity formed between the first acoustical panel and baffle
Increase has sound-absorbing material.
8. kitchen ventilator according to claim 2, which is characterized in that the denoising structure further includes the second acoustical panel, described
Acoustical panel is arranged adjacent to the smoke guiding cover, and second acoustical panel is along the direction of the axis around smoke inlet arrangement.
9. kitchen ventilator according to claim 8, which is characterized in that second acoustical panel it is hollow and along air inlet direction gradually
It shrinks.
10. kitchen ventilator according to claim 8, which is characterized in that between second acoustical panel and the smoke guiding cover
It is spaced a predetermined distance from.
11. kitchen ventilator according to claim 10, which is characterized in that between second acoustical panel and the smoke guiding cover
Spacing is at 20 millimeters or more.
12. the kitchen ventilator according to any one of claim 2-11, which is characterized in that the denoising structure disappears including first
Soundboard and the second acoustical panel, first acoustical panel and second acoustical panel are along from the baffle to the direction of the smoke guiding cover
Interval setting, first acoustical panel are set to the baffle back side, are formed between first acoustical panel and the baffle
Cavity, second acoustical panel are arranged adjacent to the smoke guiding cover, and second acoustical panel is along the axis around the smoke inlet
Direction arrangement.
13. kitchen ventilator according to claim 12, which is characterized in that first acoustical panel and second acoustical panel it
Between spacing in the range of 40 millimeters to 60 millimeters.
14. the kitchen ventilator according to any one of claim 2-11, which is characterized in that
The punching rate of the acoustical panel is in the range of 1% to 5%；And/or
The piercing aperture of the acoustical panel is within 2 millimeters；And/or
The thickness of the acoustical panel is within 2 millimeters.
15. kitchen ventilator according to claim 2, which is characterized in that the body is equipped with support rod, in the acoustical panel
At least part and the baffle be all connected to the support rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130390.9A CN109340192B (en) | 2018-09-27 | 2018-09-27 | Fume exhaust fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130390.9A CN109340192B (en) | 2018-09-27 | 2018-09-27 | Fume exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109340192A true CN109340192A (en) | 2019-02-15 |
| CN109340192B CN109340192B (en) | 2021-05-25 |
Family
ID=65306862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811130390.9A Active CN109340192B (en) | 2018-09-27 | 2018-09-27 | Fume exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340192B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160111A (en) * | 2019-07-11 | 2019-08-23 | 佛山市顺德区美的洗涤电器制造有限公司 | Kitchen ventilator |
| WO2022111281A1 (en) * | 2020-11-27 | 2022-06-02 | 广东美的白色家电技术创新中心有限公司 | Noise reduction element and range hood |
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| EP0596846A1 (en) * | 1992-11-03 | 1994-05-11 | Aktiebolaget Electrolux | Kitchen ventilator |
| US5983888A (en) * | 1999-04-07 | 1999-11-16 | Whirlpool Corporation | Low noise cooker hood |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160111A (en) * | 2019-07-11 | 2019-08-23 | 佛山市顺德区美的洗涤电器制造有限公司 | Kitchen ventilator |
| WO2022111281A1 (en) * | 2020-11-27 | 2022-06-02 | 广东美的白色家电技术创新中心有限公司 | Noise reduction element and range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109340192B (en) | 2021-05-25 |
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