CN207214198U - A kind of near-suction type oil smoke suction machine - Google Patents
A kind of near-suction type oil smoke suction machine Download PDFInfo
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- CN207214198U CN207214198U CN201721287120.XU CN201721287120U CN207214198U CN 207214198 U CN207214198 U CN 207214198U CN 201721287120 U CN201721287120 U CN 201721287120U CN 207214198 U CN207214198 U CN 207214198U
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- blower fan
- sound
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- chamber
- oil smoke
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- 239000000779 smoke Substances 0.000 title claims abstract description 78
- 230000009467 reduction Effects 0.000 claims description 44
- 238000010521 absorption reaction Methods 0.000 claims description 27
- 229920000742 Cotton Polymers 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 7
- 239000004519 grease Substances 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 5
- 238000000354 decomposition reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The utility model discloses a kind of near-suction type oil smoke suction machine, including housing, cabinet and blower fan system above housing, the housing includes the panel inclined with horizontal direction positioned at front end, it is characterised in that：The blower fan system is ternary blower fan, the ternary wind turbine layout is in the cavity that the housing and cabinet collectively form or is arranged in cabinet, at least two smoke deflectors are provided with front side of the panel, the smoke deflector in the lateral direction side by side, compartment of terrain arrangement, the gap between the gap, adjacent smoke deflector between the smoke deflector and panel forms air intake passage.By set on front side of panel at least two side by side, spaced apart smoke deflector, can reduce turbulent flow and sinuous flow in air-flow to carrying out effective Ground Split rectification and guiding by the air-flow of outer rectifier, form smooth-going air-flow.
Description
Technical field
Machine for kitchen use is the utility model is related to, especially a kind of near-suction type oil smoke suction machine.
Background technology
Range hood turns into one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top
Suction and near-absorption type, blast is remote using being vortexed for the range hood of near-absorption type, by the major part oil smoke nearer apart from the kitchen range top with arc
Line form absorbs, and can reduce the harmful effect to health, and power source is nearer from the kitchen range top, will not substantially reduce power
The suction effect in source.
A kind of side-suction type range hood of high-efficiency environment friendly as disclosed in the Chinese patent of Application No. 201320064301.1, bag
Include the deflector provided with air inlet and the blower fan system positioned at deflector rear, air inlet are connected with blower fan system, deflector
Top is provided with top plate, and the gap formation smoke collecting chamber of a smoke barrier, deflector and smoke barrier, the top are provided with front of air inlet
Plate is provided with collection cigarette groove, and collection cigarette groove includes the upper wall being connected with deflector and the smoke guide wall being connected with top plate, oil smoke pass through
The upper edge of smoke barrier enters smoke collecting chamber with collecting the gap of cigarette groove.
The scheme of prior art as described above, negative pressuren zone is smaller, the negative pressure skewness of air intake surface, and oil smoke enters collection
Turbulent flow and sinuous flow are easily caused after smoke chamber, influences fume-exhausting efficiency, and deflector is difficult to clean；Blower fan system generally use
For multi-wing centrifugal fan, and multi-wing centrifugal fan is placed in lower triangle, in order to ensure higher air intake efficiency, blower fan system body
Product is larger.And this arrangement of blower fan, due to impeller, to gas, the effect of prewhirling and gas enter in impeller is flowed into
Direction can be altered in steps in 90 ° of steering procedures of row, simple self-consistentency imports and exports actual acting ability of the angle for impeller
It is unfavorable；In addition, blower fan is remote apart from wind pipe distance, it is difficult to overcomes the resistance of ducting, blower fan faces user directly, lacks noise reduction and arranges
Apply, noise is higher.
Utility model content
Technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing a kind of oil smoke
Air-flow smooth-going, improve smoking efficiency and be easy to the near-suction type oil smoke suction machine of cleaning.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of near-suction type oil smoke suction machine, including
Housing, cabinet and blower fan system above housing, the housing are included positioned at the inclined with horizontal direction of front end
Panel, it is characterised in that：The blower fan system is ternary blower fan, and the ternary wind turbine layout is in the housing and the common structure of cabinet
Into cavity in or be arranged in cabinet, be provided with least two smoke deflectors on front side of the panel, the smoke deflector is in left and right
On direction side by side, compartment of terrain arrangement, the gap between the gap, adjacent smoke deflector between the smoke deflector and panel forms air intake
Passage.
To ensure effective cleaning by edge suction steam and smog so that the cleaning and its manufacture of range hood become
Easily, the panel includes wainscot, and is centered around wainscot periphery, forms the outer panels of framework, is opened on the wainscot
Provided with the opening with being connected in housing, the wainscot is relative to outer panels towards housing sunken inside, the smoke deflector and outside
Plate is in flat plane.
Due to the efficiency high of ternary blower fan, noise is big, is provided with the housing and is made an uproar for reducing caused by ternary blower fan
The noise reduction module of sound, the noise reduction module include the multiple baffle plates for forming sound absorption back of the body chamber and the suction for being opened in sound absorption back of the body top of chamber
Acoustic aperture.
Preferably, for ease of being arranged in housing, the cavity geometry of housing, the composition sound absorption back of the body of the noise reduction module are adapted to
The baffle plate of chamber includes right baffle-plate, right shell body, front apron, rear baffle, bottom baffle and top baffle, and the top baffle is in front and rear direction
On width be more than bottom baffle, the top baffle is gradually inclined upwardly from front to back, and sound-absorbing hole is offered on the top baffle.
In order to be played a role to the noise in wider frequency section, the sound absorption back of the body intracavitary is provided with central dividing plate and separated
Into the first chamber and second chamber positioned at arranged on left and right sides, first chamber dividing plate is provided with the first chamber and by first
Chamber is separated at least two first resonant cavities, is provided with second chamber dividing plate in the second chamber and separates second chamber
Into at least two second resonant cavities.
To increase the acoustic absorptivity of high-frequency noise, the cavity volume of first resonant cavity is less than the second resonant cavity.
To cause noise reduction module to reach the sound absorption frequency range limit, the sound-absorbing hole is including at least two first sound-absorbing hole and at least
Two the second sound-absorbing hole, the aperture of second sound-absorbing hole are more than the first sound-absorbing hole.
To increase the acoustic absorptivity of low-frequency noise, the first acoustical cotton, institute have been attached on the baffle plate at the top of the noise reduction module
State the 3rd sound-absorbing hole for offering on the first acoustical cotton and being matched with the second sound-absorbing hole.
According to one side of the present utility model, the ternary blower fan is in that the housing is obliquely arranged in horizontal direction
In the cavity collectively formed with cabinet, the noise reduction module is arranged on the lower section of ternary blower fan and close or be close to ternary blower fan,
The aperture of first sound-absorbing hole is 0.5mm~1mm.
According to other side of the present utility model, the ternary blower fan is in obliquely to be arranged in cabinet with horizontal direction
Interior, the aperture of first sound-absorbing hole is 0.8mm~3mm；Or the ternary blower fan is vertically disposed in the cabinet, institute
The aperture for stating the first sound-absorbing hole is 1mm~5mm；The noise reduction module is arranged on the lower section of ternary blower fan, positioned at the bottom of housing.
In order to which oil smoke is preferably inducted into ternary blower fan, increase the centrifugation pressurized effect on front side of ternary wind blower fan, drop
Low pressure loss, wind deflector is provided with front side of the ternary blower fan, and the wind deflector includes what is be adapted to the cavity in housing
Main body, at least partly lateral bending is rolled over and is formed and hold together smoke chamber forward on the periphery of the main body, is offered and ternary blower fan in the main body
Air inlet adaptation air guide hole.
To increase the effect of water conservancy diversion noise reduction, the bottom angled of the main body extends forward formed with cover plate downwards, the lid
Plate is close or is close to the top of noise reduction module.
Further to reduce noise on the noise transmission path of ternary blower fan, the rear side of the main body of the wind deflector is located at
Position below ternary blower fan has attached the second acoustical cotton.
To reduce for the sensitive part of human ear in noise spectrum, the ternary blower fan be in horizontal direction obliquely
Arrangement, the air inlet of the ternary blower fan are provided with afflux circle, and the afflux circle includes outer ring and is arranged on outer ring towards three
The inner ring of inner side in first blower fan, the inner ring includes isolation face and the inner ring stationary plane positioned at isolation face outer circumferential, described
Sound-absorption hole is densely covered with isolation face.
Noise reduction is influenceed to avoid grease from entering noise reduction module after separating, the bottom part down of the housing is provided with lubricating cup, institute
State and at least one first oil dripping hole is offered on the bottom of noise reduction module, the bottom of the housing offers the second oil dripping hole, institute
State the first oil dripping hole and the second oil dripping hole is corresponding with lubricating cup.
Compared with prior art, the utility model has the advantage of：By set on front side of panel at least two side by side,
Every the smoke deflector of arrangement, can be reduced to carrying out effective Ground Split rectification and guiding by the air-flow of outer rectifier in air-flow
Turbulent flow and sinuous flow, form smooth-going air-flow；It is not interfere with each other between air intake passage diverse location, effectively prevent and produced in enclosure interior
Turbulent flow and sinuous flow；Oil smoke also contacts before entering air intake passage with smoke deflector, can play a part of condensation so that bulky grain grease
It is attached on smoke deflector, prevents bulky grain grease from entering in range hood；Smoke deflector can be in running order in range hood
When, it is in flat plane with panel, it can be ensured that pass through effective cleaning of edge suction steam and smog so that range hood
Cleaning and its manufacture become easy；By using ternary blower fan, blower fan structure is compact, and size is relatively small, fan efficiency and wind
Pressure is high, and caused suction gradient is big, smoking efficiency can significantly be lifted；And the arrangement of ternary blower fan can reduce pipeline
Resistance, smoke evacuation are more smooth；By setting noise reduction module, the full frequency band noise of high frequency, intermediate frequency and low frequency can be absorbed, avoids influenceing
The normal use of range hood.
Brief description of the drawings
Fig. 1 is the schematic diagram of one embodiment of range hood of the present utility model；
Fig. 2 is the sectional view of Fig. 1 range hood；
Fig. 3 is the decomposition texture schematic diagram of Fig. 1 range hood；
Fig. 4 is the noise reduction module schematic diagram of range hood of the present utility model；
Fig. 5 is the decomposition texture schematic diagram of the noise reduction module of range hood of the present utility model；
Fig. 6 is the A-A of Fig. 4 noise reduction module to sectional view；
Fig. 7 is the B-B direction sectional view of Fig. 4 noise reduction module；
Fig. 8 is the cross section view of Fig. 4 noise reduction module.
Fig. 9 is the schematic diagram of second embodiment of range hood of the present utility model；
Figure 10 is the sectional view of Fig. 9 range hood；
Figure 11 is the decomposition texture schematic diagram of Fig. 9 range hood；
Figure 12 is the schematic diagram of the afflux circle of the ternary blower fan of the range hood of embodiment two；
Figure 13 is the decomposition texture schematic diagram of Figure 12 afflux circle.
Figure 14 is the schematic diagram of the 3rd embodiment of range hood of the present utility model；
Figure 15 is the sectional view of Figure 14 range hood；
Figure 16 is the decomposition texture schematic diagram of Figure 14 range hood.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one
Referring to Fig. 1~Fig. 3, a kind of near-suction type oil smoke suction machine, including housing 1 and the cabinet 2 above housing 1, for just
In description, hereinafter, "front", "rear", "left", "right", " on ", " under " each mean that user when using range hood, inhales
Lampblack absorber and is not limited structure relative to the orientation of user.
In the present embodiment, housing 1 includes the first side plate 11 positioned at arranged on left and right sides, the front end face of the first side plate 11 by
Gradually tilt backwards and (tilted with horizontal direction) under up to, so as to be inclined plane towards the front side of user.Two the first side plates
Top between 11 is provided with top plate 12, and the rear end between two the first side plates 11 is provided with back side panel 13.
Panel 14 is provided between two front ends of the first side plate 11, opening 141 is offered on panel 14, with connecting in housing 1
Logical, the front side of panel 14 is provided with least two smoke deflectors 15.In the present embodiment, smoke deflector 15 is three, and laterally (left
Right direction) on side by side, compartment of terrain arrangement.The gap structure between gap, adjacent smoke deflector 15 between smoke deflector 15 and panel 14
Into air intake passage 151.Panel 14, smoke deflector 15 are inclined with horizontal direction, and incline direction is consistent.By so setting
Smoke deflector 15, can to carrying out effective Ground Split rectification and guiding by the air-flow of outer rectifier, reduce turbulent flow in air-flow and
Sinuous flow, form smooth-going air-flow；Do not interfere with each other between the diverse location of air intake passage 151, effectively prevent produced inside housing 1 it is disorderly
Stream and sinuous flow；Spaced apart smoke deflector 15 effective to oil smoke can be split, rectification and guiding, oil smoke enter air intake passage 151
It is preceding also to be contacted with smoke deflector 15, condensation can be played a part of so that bulky grain grease is attached on smoke deflector 15, prevents big
Grain grease enters in range hood.Smoke deflector 15 can be put down when range hood is in running order with panel 14 in flat
Face, it can be ensured that pass through effective cleaning of edge suction steam and smog so that the cleaning and its manufacture of range hood become to hold
Easily.
Panel 14 includes wainscot 142, and is centered around the periphery of wainscot 142, forms the outer panels 143 of framework, above-mentioned
Opening 141 be opened on wainscot 142, it is preferred that opening 141 is located at the center of wainscot 142.Wainscot 142 is relative to outer
Panel 143 is closed, inner face towards the sunken inside of housing 1 among the inward flange of the outward flange of wainscot 142 and outer panels 143
Plate 142 and outer panels 143 are in plane.Above-mentioned smoke deflector 15 and panel 14 be in flat plane, refer to smoke deflector 15 with outside
Panel 143 is in flat plane.When oil smoke rises, shell is entered from the opening 141 on wainscot 142 by air intake passage 151
In the cavity of body 1.
Filter screen 16 is provided with the inside of housing 1, with 141 corresponding position of opening.Above-mentioned smoke deflector 15 passes through mounting bracket
152 are connected with wainscot 142 or filter screen 16.
The bottom of housing 1, bottom plate 17 is connected between the bottom of back side panel 13 and the bottom of panel 14.Above-mentioned first side plate 11,
Top plate 12, back side panel 13, panel 14, smoke deflector 15 and bottom plate 17 collectively define the cavity in housing 1.
Cabinet 2 includes four the second side plates 21, so as to surround the body structure that cross section is square or rectangular, cabinet
2 bottom opening, after entering so as to oil smoke in the cavity in housing 1, it can enter in cabinet 2.
The lower section of bottom plate 17 of housing 1 is provided with lubricating cup 3.
Blower fan system is arranged in the cavity that housing 1 and cabinet 2 collectively form, in the present embodiment, blower fan system three
First blower fan 4, ternary blower fan 4 can use prior art, as the Application No. 201620102790.9 of the applicant patent in institute
Disclosed blower fan structure, the air outlet of ternary blower fan 4 are provided with outlet housing 5, and the oil smoke discharge for ternary blower fan 4 to be discharged arrives
Wind pipe.The air inlet 41 of ternary blower fan 4 is corresponding with the opening 141 on wainscot 142 before, and is in and level side
To being obliquely placed in the cavity of housing 1 and the composition of cabinet 2, i.e., the part of ternary blower fan 4 is located in housing 1 and remainder position
In in cabinet 2.Ternary blower fan 4 is arranged so as to, and not only has shorter runner (near from the air inlet of range hood), and distance
Wind pipe is also near, therefore, greatly reducing the caused eddy current loss because of air-flow separation in the impeller of ternary blower fan 4,
Improve impeller adiabatic efficiency.
Because the noise of ternary blower fan 4 is larger, and noise frequency range is wide, in the cavity of housing 1, is preferably located at ternary blower fan
4 lower section is provided with noise reduction module 7, referring to Fig. 4~8, noise reduction module 7 include right baffle-plate 711, right shell body 712, front apron 713,
Rear baffle 714, bottom baffle 715 and top baffle 716, width of the top baffle 716 in front and rear direction are more than bottom baffle 715, front
Plate 713 from top to bottom gradually tilts backwards, and right baffle-plate 711 and right shell body 712 are in triangle substantially, and thus above-mentioned each plate is common
The sound absorption back of the body chamber of composition is in triangulo column (up big and down small) substantially.Top baffle 716 is gradually inclined upwardly from front to back, with ternary
The incline direction of the bottom of blower fan 4 is consistent, and preferably, top baffle 716 is close or is close to the bottom of ternary blower fan 4.
Noise reduction module 7 also includes central dividing plate 72, first chamber dividing plate 73 and second chamber dividing plate 74.Central dividing plate 72 is set
Put and carry on the back intracavitary in sound absorption, and sound absorption back of the body chamber is divided into the first chamber 751 positioned at left side and the second chamber positioned at right side
752.Preferably, central dividing plate 72 can be parallel with right baffle-plate 711 or right shell body 712, the first chamber that central dividing plate 72 is separated into
Room 751 and second chamber 752 are equal.
First chamber dividing plate 73 is arranged in first chamber 751, including at least two, each first chamber dividing plate 73 is on a left side
Extend between baffle plate 711 and central dividing plate 72, and each first chamber dividing plate 73 from top baffle 716 from front to back diagonally downward
Bent after extending certain distance towards rear baffle 714.One of first chamber dividing plate 73 is located at another first chamber dividing plate
73 lower section, thus, each baffle plate and first chamber dividing plate 73 will from top to bottom be separated at least three first in first chamber 751
Resonant cavity 761.
Second chamber dividing plate 74 is arranged in second chamber 752, including at least one, and second chamber dividing plate 74 is at middle interval
Extend between plate 72 and right shell body 712.One of second chamber dividing plate 74 can bend and extend into downwards several from top baffle 716
Section is parallel with front apron 713, rear baffle 714 and bottom baffle 715 respectively, and second chamber 752 thus is separated into two second and is total to
Shake chamber 762, i.e., second resonant cavity between the second chamber dividing plate 74, top baffle 716, central dividing plate 72, right shell body 712
762, remainder then forms another the second resonant cavity 762.Can also set in another resonant cavity 762 another the
Two compartment spacers 74, in tabular, extend between central dividing plate 72 and right shell body 712, thus by another second resonance
Chamber 762 is divided into two.
At least two first sound-absorbing hole 771 and at least two second sound-absorbing hole 772 are offered on top baffle 716, first inhales
The sound-absorbing hole 772 of acoustic aperture 771 and second is distributed in the top of first chamber 751 and second chamber 752, it is preferred that the first sound absorption
Hole 771 can be in array-like, be covered with the surface of top baffle 716, and 772 surface straggly for being arranged in top baffle 716 of the second sound-absorbing hole.
First sound-absorbing hole 771 can be circular port, square opening, hex hole etc., and its aperture is 0.5mm~1mm, and this is due to noise reduction mould
Block 7 is close or is close to ternary blower fan 4, causes the spacing between noise reduction module 7 and ternary blower fan 4 minimum, and noise frequency range is extremely wide, only
Have and reduce the diameter of the first sound-absorbing hole 771 within the above range, noise reduction module 7 could be caused to reach the sound absorption frequency range limit.The
The aperture of two sound-absorbing hole 772 is more than the first sound-absorbing hole 771.
Top baffle 716 has attached the first acoustical cotton 781 above, is offered on the first acoustical cotton 781 and the second sound-absorbing hole 772
3rd sound-absorbing hole 773 of matching, so as to coordinate the acoustic absorptivity of increase low-frequency noise with sound absorption back of the body chamber.
Due on the lower section noise transmission path of ternary blower fan 4, leftward position is mainly high-frequency noise, therefore above-mentioned first
The cavity volume of resonant cavity 761 is less than the second resonant cavity 762, i.e. the first resonant cavity 761 can increase the sound absorption system to high-frequency noise
Number, the second resonant cavity 762 is then semi-open space, increases the acoustic absorptivity to mid-frequency noise.This mazy resonant cavity
Add the wide band sound absorption of acoustical cotton 78.
Alternatively, first chamber dividing plate 73 and second chamber dividing plate 74 can also be other shapes, as long as can separate
Space in one chamber 751 and second chamber 752, each resonant cavity after segmentation can be cuboid, cylinder, cone,
Irregular body etc..In addition, sound absorption back of the body intracavitary, the surface of each resonant cavity can also attach acoustical cotton.
In order to reduce absorbed noise frequency, micro-pore diameter is reduced, increases the spacing between adjacent cells, increase resonance
The height of chamber, the largest interval between each sound-absorbing hole preferably should be 1/5th of corresponding wave length of sound, preferably 8~
50mm, largest interval 70mm, the highly preferred of each resonant cavity should be 1/3rd of corresponding wave length of sound.
By above-mentioned arrangement, ternary blower fan 4 has very well close to noise reduction module 7 for the radiated noise of ternary blower fan 4
Inhibitory action, it is and compact-sized.And the structure of noise reduction module 7, sound absorption frequency range greatly improved, can effectively absorb each frequency range
Noise.
At least one first oil dripping hole 7151 is offered on bottom baffle 715, the second oil dripping is offered on the bottom plate 17 of housing 1
Hole 171 (can be corresponding with the first oil dripping hole 7151, can not also correspond to), and the position of above-mentioned oil dripping hole and the position of lubricating cup 3
Put correspondingly.Even if thus there is the grease after separation to enter noise reduction module 7, it can also pass through the first oil dripping hole 7151 and the second oil dripping hole
171 are discharged to lubricating cup 3, in order to avoid influence the noise reduction of noise reduction module 7.
Embodiment two
Referring to Fig. 9~Figure 13, in the present embodiment, it is with the difference of above-described embodiment one, ternary blower fan 4 enters
Air port 41 is in obliquely to be placed in cabinet 2 with horizontal direction before.Collection is provided with the air inlet 41 of ternary blower fan 4
Stream circle 42.Ternary blower fan 4 so above puies forward arrangement, realizes and directly inhales in line, negative pressuren zone concentration, helps to reduce the resistance of ducting, row
Cigarette is more smooth.
Because ternary blower fan 4 is obliquely arranged in cabinet 2, do not block, therefore, low frequency caused by ternary blower fan 4 is made an uproar
Sound is easier outwards to propagate.Therefore, afflux circle 42 is preferable, using such as the application Application No. 201210230512.8 it is special
Form disclosed in profit, including outer ring 421 and inner ring 422, inner ring 422 are located at outer ring 421 towards in ternary blower fan 4
Side, outer ring 421 include the wind-guiding face 4211 to be extended internally by air inlet 41 and are used for positioned at the outer circumferential of wind-guiding face 4211
Fixed outer ring stationary plane 4212, inner ring 422 include with being used for of coordinating of wind-guiding face 4211 block turbulent area isolate face 4221
It is used for fixed inner ring stationary plane 4222 with positioned at the isolation outer circumferential of face 4221.Gather and inhale on the isolation face 4221 of inner ring 422
Sound hole 4223.When noise air-flow passes through sound-absorption hole 4223 caused by ternary blower fan 4, pneumatic noise can be to high-frequency mobile so that
Reduced in noise spectrum for the sensitive part of human ear.Acoustical cotton can also be set between outer ring 421 and inner ring 422.
In order that ternary blower fan can be preferably directed into by obtaining oil smoke, wind-guiding is provided between ternary blower fan 4 and panel 14
Plate 6, wind deflector 6 include main body 61 and the top wind deflector 63 positioned at the top of main body 61.Wherein, main body 61 is plate-like, incline direction
Consistent with ternary blower fan 4, main body 61 is placed in housing 1 and cabinet 2, and air guide hole 611 is offered in main body 61, air guide hole 611
Shape, size are adapted to the air inlet of ternary blower fan 4；Push up second side of the wind deflector 62 by the top of main body 61 towards the front side of cabinet 2
The direction of plate 21 bends and formed, and is connected with the second side plate 21.Wind deflector 6 also include from main body 61 bottom angled to
Under the cover plate 64 that extends forward, cover plate 64 extends close to panel 14.Thus, structure as wind deflector 6, forms cigarette
Chamber, the oil smoke that diffusion in housing 1 is entered from panel 14 can be guided to ternary blower fan 4, improve smoking efficiency.Wind deflector 6 increases
The centrifugation pressurized effect of the front side of ternary blower fan 4, reduces the pressure loss.
The top baffle 716 of noise reduction module 7 is gradually inclined upwardly from front to back, the inclination with ternary blower fan 4 bottom, cover plate 64
Direction is consistent, and preferably, top baffle 716 is close or is close to the cover plate 64 of wind deflector 6, thus increases the work of water conservancy diversion noise reduction
With.
In addition, this arrangement of ternary blower fan 4, rotating speed is small, and negative pressuren zone is concentrated, and low-frequency noise is big, it is desirable to the sound absorption back of the body
Chamber it is highly preferred, be 8mm~20mm.
A diameter of 0.8mm~3mm of the first sound-absorbing hole 771 offered on top baffle 716, this is due to noise reduction module 7
Close or be close to have certain spacing between cover plate 64, with ternary blower fan 4, noise frequency range is wider, only by the first sound-absorbing hole
771 diameter is reduced within the above range, and noise reduction module 7 could be caused to reach band limit.
Top baffle 716, the first acoustical cotton 781 and cover plate 64 can be close to mutually.The rear side of the main body 61 of wind deflector 6 is located at three
The position of first lower section of blower fan 4 can attach the second acoustical cotton 782, further be reduced on the noise transmission path of ternary blower fan 4
Noise.
Embodiment three
Referring to Figure 14~Figure 16, in the present embodiment, it is with the difference of above-described embodiment two, ternary blower fan 4
Air inlet 41 is vertically placed in cabinet 2 before.The arrangement of this blower fan, low-frequency noise are blocked, therefore nothing
Sound-absorption hole 4223 need to be opened up on afflux circle 42 and carrys out conversion noise frequency.In addition, the ternary blower fan 4 arranged vertically, its diameter are big
Tilting ternary blower fan 4 in embodiment two, to make up the flow losses of air-flow steering, it is preferred that ternary blower fan 4 now
A diameter of 220mm~300mm.
Main body 61 bends certain distance rear-inclined in the inside points of housing 1 and is bent to form kink 612, above-mentioned master downwards backward
The kink 612 of body 61 is located at the lower section of ternary blower fan 4；Wind deflector 6 is also included by the bottom angled of the kink 612 of main body 61
The cover plate 64 extended forward downwards, cover plate 64 extend close to panel 14.
In addition, this arrangement of ternary blower fan 4, rotating speed is high, and high-frequency noise is big, it is desirable to which the height of sound absorption back of the body chamber is more
Greatly, it is preferred that be 15mm~28mm.
Because noise reduction module 7 is more away from ternary blower fan, therefore, the first sound-absorbing hole 771 offered on top baffle 716
A diameter of 1mm~5mm, only the diameter of the first sound-absorbing hole 771 is reduced within the above range, noise reduction module 7 could be caused to reach
To band limit.
The position that the rear side of the kink 612 of the main body 61 of wind deflector 6 is located at the lower section of ternary blower fan 4 can attach the second suction
Sound cotton 782, further reduce noise on the noise transmission path of ternary blower fan 4.
Above-mentioned wind deflector 6 can be used in embodiment one.
Claims (15)
1. a kind of near-suction type oil smoke suction machine, including housing (1), cabinet (2) and blower fan system above housing (1), institute
State the panel (14) inclined with horizontal direction that housing (1) includes being located at front end, it is characterised in that：The blower fan system is three
First blower fan (4), the ternary blower fan (4) is arranged in the cavity that the housing (1) and cabinet (2) collectively form or arrangement
In cabinet (2), at least two smoke deflectors (15) are provided with front side of the panel (14), the smoke deflector (15) is in left and right directions
On side by side, compartment of terrain arrangement, the gap between gap, adjacent smoke deflector (15) between the smoke deflector (15) and panel (14)
Form air intake passage (151).
2. near-suction type oil smoke suction machine according to claim 1, it is characterised in that：The panel (14) includes wainscot
(142), and it is centered around wainscot (142) periphery, forms the outer panels (143) of framework, is offered on the wainscot (142)
With the opening (141) that connects in housing (1), the wainscot (142) relative to outer panels (143) towards housing (1) sunken inside,
The smoke deflector (15) and outer panels (143) are in flat plane.
3. near-suction type oil smoke suction machine according to claim 1, it is characterised in that：It is provided with the housing (1) for dropping
The noise reduction module (7) of noise caused by low ternary blower fan (4), the noise reduction module (7) include forming multiple gears of sound absorption back of the body chamber
Plate and the sound-absorbing hole for being opened in sound absorption back of the body top of chamber.
4. near-suction type oil smoke suction machine according to claim 3, it is characterised in that：The composition sound absorption of the noise reduction module (7)
Carrying on the back the baffle plate of chamber includes right baffle-plate (711), right shell body (712), front apron (713), rear baffle (714), bottom baffle (715) and top
Baffle plate (716), width of the top baffle (716) in front and rear direction are more than bottom baffle (715), the top baffle (716) by
A-P is gradually inclined upwardly, and sound-absorbing hole is offered on the top baffle (716).
5. near-suction type oil smoke suction machine according to claim 4, it is characterised in that：The sound absorption back of the body intracavitary is provided with middle interval
Plate (72) and be separated into the first chamber (751) and second chamber (752) positioned at arranged on left and right sides, in the first chamber (751)
It is provided with first chamber dividing plate (73) and first chamber (751) is separated at least two first resonant cavities (761), described second
It is provided with second chamber dividing plate (74) in chamber (752) and second chamber (752) is separated at least two second resonant cavities
(762)。
6. near-suction type oil smoke suction machine according to claim 5, it is characterised in that：The cavity of first resonant cavity (761)
Volume is less than the second resonant cavity (762).
7. near-suction type oil smoke suction machine according to claim 3, it is characterised in that：The sound-absorbing hole includes at least two first
Sound-absorbing hole (771) and at least two second sound-absorbing hole (772), the aperture of second sound-absorbing hole (772) are more than the first sound-absorbing hole
(771)。
8. near-suction type oil smoke suction machine according to claim 7, it is characterised in that：Baffle plate at the top of the noise reduction module (7)
On attached the first acoustical cotton (781), matched with the second sound-absorbing hole (772) is offered on first acoustical cotton (781)
Three sound-absorbing hole (773).
9. near-suction type oil smoke suction machine according to claim 7, it is characterised in that：The ternary blower fan (4) be in and level side
To being obliquely arranged in the cavity that the housing (1) and cabinet (2) collectively form, the noise reduction module (7) is arranged on ternary
The lower section of blower fan (4) is simultaneously close or be close to ternary blower fan (4), and the aperture of first sound-absorbing hole (771) is 0.5mm~1mm.
10. near-suction type oil smoke suction machine according to claim 7, it is characterised in that：The ternary blower fan (4) be in and level side
To being obliquely arranged in cabinet (2), the aperture of first sound-absorbing hole (771) is 0.8mm~3mm；Or the ternary wind
Machine (4) is vertically disposed in the cabinet (2), and the aperture of first sound-absorbing hole (771) is 1mm~5mm；The noise reduction mould
Block (7) is arranged on the lower section of ternary blower fan (4), positioned at the bottom of housing (1).
11. near-suction type oil smoke suction machine according to claim 10, it is characterised in that：Set on front side of the ternary blower fan (4)
Wind deflector (6) is equipped with, the wind deflector (6) includes the main body (61) being adapted to the cavity in housing (1), the main body (61)
At least partly lateral bending is rolled over and is formed and hold together smoke chamber forward on periphery, and the air inlet with ternary blower fan (4) is offered on the main body (61)
(41) air guide hole (611) of adaptation.
12. near-suction type oil smoke suction machine according to claim 11, it is characterised in that：The bottom angled of the main body (61) to
Under extend forward formed with cover plate (64), the cover plate (64) is close or is close to the top of noise reduction module (7).
13. near-suction type oil smoke suction machine according to claim 11, it is characterised in that：The main body (61) of the wind deflector (6)
The position that is located at below ternary blower fan (4) of rear side attached the second acoustical cotton (782).
14. near-suction type oil smoke suction machine according to claim 10, it is characterised in that：The ternary blower fan (4) be in and level
Direction obliquely arranges that air inlet (41) place of the ternary blower fan (4) is provided with afflux circle (42), afflux circle (42) bag
Include outer ring (421) and be arranged on inner ring (422) of the outer ring (421) towards the inner side in ternary blower fan (4), the inner ring (422)
Including isolation face (4221) and the inner ring stationary plane (4222) positioned at isolation face (4221) outer circumferential, the isolation face (4221)
On be densely covered with sound-absorption hole (4223).
15. near-suction type oil smoke suction machine according to claim 3, it is characterised in that：The bottom part down of the housing (1) is set
There is lubricating cup (3), at least one first oil dripping hole (7151) is offered on the bottom of the noise reduction module (7), the housing (1)
Bottom offers the second oil dripping hole (171), and first oil dripping hole (7151) and the second oil dripping hole (171) are corresponding with lubricating cup (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287120.XU CN207214198U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287120.XU CN207214198U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207214198U true CN207214198U (en) | 2018-04-10 |
Family
ID=61820468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721287120.XU Withdrawn - After Issue CN207214198U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207214198U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595637A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of near-suction type oil smoke suction machine |
| CN110905858A (en) * | 2019-11-07 | 2020-03-24 | 宁波方太厨具有限公司 | Fume exhaust fan |
-
2017
- 2017-09-30 CN CN201721287120.XU patent/CN207214198U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595637A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of near-suction type oil smoke suction machine |
| CN109595637B (en) * | 2017-09-30 | 2024-01-16 | 宁波方太厨具有限公司 | Near-suction type range hood |
| CN110905858A (en) * | 2019-11-07 | 2020-03-24 | 宁波方太厨具有限公司 | Fume exhaust fan |
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