CN207214199U - 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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- CN207214199U CN207214199U CN201721288277.4U CN201721288277U CN207214199U CN 207214199 U CN207214199 U CN 207214199U CN 201721288277 U CN201721288277 U CN 201721288277U CN 207214199 U CN207214199 U CN 207214199U
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- blower fan
- air inlet
- oil smoke
- chamber
- sound
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- 239000000779 smoke Substances 0.000 title claims abstract description 86
- 230000009467 reduction Effects 0.000 claims description 27
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 229920000742 Cotton Polymers 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 7
- 239000004519 grease Substances 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
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- 239000007789 gas Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003517 fume Substances 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
- 238000009434 installation Methods 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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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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 includes the first ternary blower fan and the second ternary blower fan being arranged in series, 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 includes the first ternary blower fan and the second ternary blower fan being arranged in series, the panel
Front side is provided with least two smoke deflectors, the smoke deflector in the lateral direction side by side, compartment of terrain arrangement, the smoke deflector and face
Gap between gap, adjacent smoke deflector between plate 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 blower fan system
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, acoustical cotton, the suction have been attached on the baffle plate at the top of the noise reduction module
The 3rd sound-absorbing hole matched with the second sound-absorbing hole is offered on sound cotton.
On the basis of Cabinet Size is not changed, to increase air quantity, the first ternary blower fan includes the first 3 d impeller
With the first air inlet, the second ternary blower fan includes the second 3 d impeller and the second air inlet, on oil smoke flow path, institute
State the downstream that the second air inlet is located at the first air inlet, first air inlet and the second air inlet are towards identical direction.
To enable the abundant diffusion of exit flow of first order blower fan so that dynamic pressure switchs to static pressure, into second level wind
The diameter of machine, the first 3 d impeller and the second 3 d impeller is identical, the distance between described first air inlet and the second air inlet
With the ratio 0.2~1 of the diameter of the first 3 d impeller.
According to one side of the present utility model, first air inlet and the second air inlet are to cause the one or three down
First blower fan and the second ternary blower fan are arranged in cabinet in horizontal, formed with air channel, the first ternary blower fan in the cabinet
The first air inlet and the distance between tunnel inlet is the first 3 d impeller diameter 1~2 times, first 3 d impeller
The distance of center and tunnel inlet is more than the diameter of the first 3 d impeller.
According to other side of the present utility model, first air inlet is obliquely down so that the first ternary blower fan
In the tilting cavity formed in housing and cabinet, second air inlet is down so that the second ternary blower fan horizontal arrangement or oblique
Put in cabinet.
To cause oil smoke to be preferably inducted into the first ternary blower fan, wind-guiding is provided with front side of the first ternary blower fan
Plate, the wind deflector include the main body being adapted to the cavity in housing, and the periphery of the main body is bent and shape to the front side of housing
Into smoke chamber is held together, the air guide hole being adapted to the first air inlet of the first ternary blower fan is offered in the main body.
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 two ternary blower fans, blower fan structure is compact, and size is relatively small, fan efficiency
High with blast, caused suction gradient is big, smoking efficiency can significantly be lifted, and passes through the ternary blower fan of small size, energy
So that two ternary blower fans still have less size under the combination of series connection so that range hood need not change existing
Size, installation will not also be limited by floor floor height.
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 side sectional view of Fig. 1 range hood；
Fig. 3 is the front section view (hiding outlet housing) of Fig. 1 range hood；
Fig. 4 is the decomposition texture schematic diagram of Fig. 1 range hood；
Fig. 5 is the noise reduction module schematic diagram of range hood of the present utility model；
Fig. 6 is the decomposition texture schematic diagram of the noise reduction module of range hood of the present utility model；
Fig. 7 is the A-A of Fig. 5 noise reduction module to sectional view；
Fig. 8 is the B-B direction sectional view of Fig. 4 noise reduction module；
Fig. 9 is the cross section view of Fig. 4 noise reduction module；
Figure 10 is the schematic diagram of second embodiment of range hood of the present utility model；
Figure 11 is the decomposition texture schematic diagram of Figure 10 range hood；
Figure 12 is the schematic diagram of 3rd embodiment of range hood of the present utility model；
Figure 13 is the decomposition texture schematic diagram of Figure 12 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. 4, 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.Structure between each second sidewall 21
The air channel 25 passed through into oil smoke.
The lower section of bottom plate 17 of housing 1 is provided with lubricating cup 3.
In the present embodiment, blower fan system 4 is provided with cabinet 2, it is preferred that blower fan system 4 is ternary blower fan, ternary wind
Machine can use prior art, as disclosed in Application No. 201310418009.X Chinese patent.Blower fan system 4 can be single
Individual ternary blower fan, two ternary blower fans in parallel or two series connection ternary blower fans, due to ternary blower fan have it is compact-sized,
The characteristics of size is relatively small, fan efficiency and blast are high, can caused by suction gradient it is big, can so that smoking efficiency significantly
Lifting.The concrete structure of blower fan system 4 will be described in detail later.The top of cabinet 2 is provided with to be connected with the air outlet of blower fan system 4
The outlet housing 5 connect, so that by outlet housing 5, oil smoke are drained into common flue.
Because the noise of ternary blower fan is larger, and noise frequency range is wide, in the cavity of housing 1, is preferably located at blower fan system 4
Lower section be provided with noise reduction module 7, referring to Fig. 5~9, 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.
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 1mm~5mm, and this is due to noise reduction module
7 and first have certain spacing between ternary blower fan 41, and noise frequency range is extremely wide, and only the diameter of the first sound-absorbing hole 771 contracts
It is small within the above range, could cause noise reduction module 7 reach sound absorption the frequency range limit.The aperture of second sound-absorbing hole 772 is more than first
Sound-absorbing hole 771.
Top baffle 716 has attached acoustical cotton 781 above, and the matched with the second sound-absorbing hole 772 is offered on acoustical cotton 781
Three sound-absorbing hole 773, so as to coordinate the acoustic absorptivity of increase low-frequency noise with sound absorption back of the body chamber.
Due to below ternary blower fan on noise transmission path, 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, there is good inhibiting effect for ternary blower fan radiated noise, and it is compact-sized.
And the structure of noise reduction module 7, sound absorption frequency range greatly improved, can effectively absorb the noise of each frequency range.
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.
Referring to Fig. 2~Fig. 4, blower fan system 4 include two can independent operation the first ternary blower fan 41 and the second ternary wind
Machine 42, two ternary fans in series are set.By using 3 d impeller, compared to centrifugal blower, flowing effect can be significantly increased
Rate, improve air quantity.
First ternary blower fan 41 includes the first spiral case 411 and the first 3 d impeller 412 being arranged in the first spiral case 411,
Second ternary blower fan 42 includes the second spiral case 421 and the second 3 d impeller 422 being arranged in the second spiral case 421.First spiral case
Formed with the first air inlet 413 on 411, formed with the second air inlet 423, the top shape of the first spiral case 411 on the second spiral case 421
Into the first air outlet 414, the top of the second spiral case 421 forms the second air outlet 424.
First 3 d impeller 412 and the second 3 d impeller 422 can use prior art, such as the Application No. of the applicant
Structure disclosed in 201620102790.9 patent, two 3 d impellers are each independent, driven respectively with independent first
The dynamic motor 432 of motor 431 and second.
First ternary blower fan 41 (as first order blower fan) and the second ternary blower fan 42 (as second level blower fan) are mutual respectively
It is mutually independent, and be in horizontal arrangement, i.e., the air inlet of two ternary blower fans is down.Second ternary blower fan 42 is located at first
The top of ternary blower fan 41, two ternary blower fan arranged for interval.Oil smoke enters fashionable from exhaust fume collecting hood 1, passes sequentially through the first ternary wind
Machine 41 (upstream of oil smoke flow path) and the second ternary blower fan 42 (downstream of oil smoke flow path).First ternary blower fan 41
It is in the first open, i.e., above-mentioned air outlet between first air outlet 414 and the second air inlet 423 of the second ternary blower fan 42
414 and second are not connected by guide duct between air inlet 423, and oil smoke is directly discharged in cabinet 2 by the first air outlet 414
In air channel 25, oil smoke is sucked in air channel 25 of second air inlet 423 out of cabinet 2.
First ternary blower fan 41 and the second ternary blower fan 42 arrange in correspondence with each other, the first air inlet of the first ternary blower fan 41
413 and second second air inlet 423 of ternary blower fan 42 can correspond to (coaxial or in same vertical direction), first
Second air outlet 414 of ternary blower fan 41 and the second air outlet 424 of the second ternary blower fan 42 can also correspond to (it is coaxial or
In same vertical direction).Maintained a certain distance between first air inlet 413 and the second air inlet 423, between the two
Distance and the first 3 d impeller 412 or the ratio 0.2~1 of the diameter of the second 3 d impeller 422 (two 3 d impellers are identical).Two
Suitable spacing is kept between level blower fan so that the exit flow of first order blower fan being capable of abundant diffusion so that dynamic pressure switchs to quiet
Pressure, into second level blower fan；But can not from it is too remote, otherwise lose the meaning of two fans series connection.
Alternatively, the first ternary blower fan 41 (as first order blower fan) and the second ternary blower fan 42 are (as second level wind
Machine) in reversely, the first air inlet 413 of the first ternary blower fan 41 leans on for dislocation arrangement, i.e. the first spiral case 411 and the second spiral case 412
Nearly right side, the second air inlet 423 of the second ternary blower fan 42 lean on close to left side, the second air outlet 414 of the first ternary blower fan 41
Nearly left side, the first air outlet of the second air outlet 424 of the second ternary blower fan 42 close to right side, now the first ternary blower fan 41
414 is corresponding in vertical direction or close corresponding with the second air inlet 423 of the second ternary blower fan 42.The He of first air inlet 413
The distance between second air inlet 423 is the distance in vertical direction.
First air inlet 413 of the first ternary blower fan 41 maintains a certain distance with the entrance of air channel 25, between the two away from
From 1~2 times for the diameter of the first 3 d impeller 412, the center of the first 3 d impeller 412 and the distance of the entrance of air channel 25 must be big
In the diameter of the first 3 d impeller 412, oil smoke is avoided not enter blower fan system by enough runners after the rectification of filter screen 16
In system 4, it is ensured that certain rectified action, but 2 times of diameters can not be more than, otherwise apart from negative pressure region away from too far away.
The mode of this arranged in series, realize oil smoke and directly inhale in line, improve static pressure, lift range hood effect；Two
Level blower fan filtering, adds filter effect, improves grease separating degree；Two-stage fans in series, just it is not required to per one-level rotation speed of fan
It is so high, it can effectively reduce noise.The complete machine height of two fans can be near or below the tilting height of single blower fan, and
Range hood effect is lifted at double.
Embodiment two
Referring to Figure 10 and Figure 11, in the present embodiment, it is with the difference of above-described embodiment one, the first ternary blower fan
41 are arranged in the cavity that housing 1 and cabinet 2 collectively form, the first air inlet 413 of the first ternary blower fan 41 before, and
In being obliquely placed in horizontal direction in the cavity of housing 1 and the composition of cabinet 2, i.e., the part of the first ternary blower fan 41 is located at housing 1
It is interior and remainder is located in cabinet 2.First ternary blower fan 41 is arranged so as to, and not only has shorter runner (from range hood
Air inlet it is near), it is and also near apart from wind pipe, therefore, greatly reducing the first ternary leaf of the first ternary blower fan 41
The caused eddy current loss because of air-flow separation, improves impeller adiabatic efficiency in wheel 412.
Because the spacing between the first ternary blower fan 41 and noise reduction module 7 is compared with smaller in embodiment one, therefore, in this reality
Apply in example, the aperture of the first sound-absorbing hole 771 is 0.8~3mm.
The blower fan whole height that this series system is formed is relatively low, and fan outlet static pressure is larger, is advantageous to overcome high-rise pipe
Road resistance, further, since the small size of ternary blower fan, Wind Volume, solve the problems, such as that floor floor height is limited.
In order that ternary blower fan can be preferably directed into by obtaining oil smoke, it is provided between the first ternary blower fan 41 and panel 14
Wind deflector 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, tilts
Direction is consistent with the first ternary blower fan 41, and main body 61 is placed in housing 1 and cabinet 2, and air guide hole 611 is offered in main body 61, is led
Shape, the size in air port 611 are adapted to the first air inlet 413 of the first ternary blower fan 41；Wind deflector 62 is pushed up by the top of main body 61
Formed towards the direction of the second side plate 21 bending of the front side of cabinet 2, and be connected with the second side plate 21.The master of wind deflector 6
Body 61 bends certain distance rear-inclined in the inside points of housing 1 and is bent to form kink 612, the bending of aforementioned body 61 downwards backward
Portion 612 is located at the lower section of the first ternary blower fan 41；Wind deflector 6 also includes downward by the bottom angled of the kink 612 of main body 61
The cover plate 64 extended forward, cover plate 64 extend close to panel 14.Thus, structure as wind deflector 6, forms smoke chamber,
The oil smoke for entering diffusion in housing 1 from panel 14 can be guided to the first ternary blower fan 41, improve smoking efficiency.Wind deflector 6 increases
The big centrifugation pressurized effect of the front side of first ternary blower fan 41, reduces the pressure loss.
The top baffle 716 of noise reduction module 7 is gradually inclined upwardly from front to back, with the bottom of the first ternary blower fan 41, cover plate 64
Incline direction it is consistent, and preferably, top baffle 716 is close or is close to the cover plate 64 of wind deflector 6, thus increases water conservancy diversion noise reduction
Effect.
Top baffle 716, 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 ternary wind
The position of the lower section of machine 4 can attach acoustical cotton, further reduce noise on the noise transmission path of the first ternary blower fan 41.
The mode of this two fans series connection, while air inlet of kitchen ventilator negative pressure is ensured, the horizontal layout drop of upper end
The low height of complete machine, makes it may apply to more kitchen scenes.
Embodiment three
Referring to Figure 12 and Figure 13, in the present embodiment, it is with the difference of above-described embodiment two, the second ternary blower fan
42 are similarly angularly arranged in cabinet 2, i.e. the first air inlet 413 of the first ternary blower fan 41 and horizontal direction inclined ground court
Under, the second air inlet 423 of the second ternary blower fan 42 and horizontal direction are inclinedly down.
Pass through between first air outlet 414 of the first ternary blower fan 41 and the second air inlet 423 of the second ternary blower fan 42
Guide duct 46 connects.
The blower fan that this tilting series system is formed, overall volume is further reduced, and under causing negative pressuren zone more
Move, improve range hood effect.
Claims (13)
1. a kind of near-suction type oil smoke suction machine, including housing (1), cabinet (2) and blower fan system (4) above housing (1),
The housing (1) includes the panel (14) inclined with horizontal direction positioned at front end, it is characterised in that：The blower fan system bag
The the first ternary blower fan (41) and the second ternary blower fan (42) being arranged in series are included, at least two are provided with front side of the panel (14)
Smoke deflector (15), the smoke deflector (15) in the lateral direction side by side, compartment of terrain arrangement, the smoke deflector (15) and panel (14)
Between gap, the gap between adjacent smoke deflector (15) 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 blower fan system (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 acoustical cotton (781), offer the 3rd sound-absorbing hole matched with the second sound-absorbing hole (772) on the acoustical cotton (781)
(773)。
9. near-suction type oil smoke suction machine according to claim 1, it is characterised in that：The first ternary blower fan (41) includes the
One 3 d impeller (412) and the first air inlet (413), the second ternary blower fan (42) include the second 3 d impeller (422) and
Second air inlet (423), on oil smoke flow path, second air inlet (423) is located under the first air inlet (413)
Trip, first air inlet (413) and the second air inlet (423) are towards identical direction.
10. near-suction type oil smoke suction machine according to claim 9, it is characterised in that：First 3 d impeller (412) and the two or three
The diameter of first impeller (422) is identical, the distance between first air inlet (413) and the second air inlet (423) and the one or three
The ratio 0.2~1 of the diameter of first impeller (412).
11. near-suction type oil smoke suction machine according to claim 9, it is characterised in that：First air inlet (413) and second
Air inlet (423) is down so that the first ternary blower fan (41) and the second ternary blower fan (42) are arranged in cabinet (2) in horizontal
It is interior, formed with air channel (25), the first air inlet (413) of the first ternary blower fan (41) and air channel in the cabinet (2)
(25) the distance between entrance is 1~2 times of the first 3 d impeller (412) diameter, the center of first 3 d impeller (412)
It is more than the diameter of the first 3 d impeller (412) with the distance of air channel (25) entrance.
12. near-suction type oil smoke suction machine according to claim 9, it is characterised in that：First air inlet (413) is inclination
Ground causes the first ternary blower fan (41) tilting in the cavity that housing (1) and cabinet (2) are formed down, second air inlet
(423) for down so that the horizontal arrangement of the second ternary blower fan (42) or tilting in cabinet (2).
13. near-suction type oil smoke suction machine according to claim 12, it is characterised in that：Before the first ternary blower fan (41)
Side is provided with wind deflector (6), and the wind deflector (6) includes the main body (61) being adapted to the cavity in housing (1), the main body
(61) periphery bends to the front side of housing (1) and is formed and hold together smoke chamber, is offered and the first ternary blower fan on the main body (61)
(41) air guide hole (611) of the first air inlet (413) adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288277.4U CN207214199U (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 |
|---|---|---|---|
| CN201721288277.4U CN207214199U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207214199U true CN207214199U (en) | 2018-04-10 |
Family
ID=61820583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721288277.4U Withdrawn - After Issue CN207214199U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207214199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595649A (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 |
-
2017
- 2017-09-30 CN CN201721288277.4U patent/CN207214199U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595649A (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 |
| CN109595649B (en) * | 2017-09-30 | 2024-01-16 | 宁波方太厨具有限公司 | Near-suction type range hood |
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