CN109595639A - A kind of near-suction type oil smoke suction machine - Google Patents
A kind of near-suction type oil smoke suction machine Download PDFInfo
- Publication number
- CN109595639A CN109595639A CN201710923992.9A CN201710923992A CN109595639A CN 109595639 A CN109595639 A CN 109595639A CN 201710923992 A CN201710923992 A CN 201710923992A CN 109595639 A CN109595639 A CN 109595639A
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- oil smoke
- deflector
- impeller
- panel
- smoke
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- 239000000779 smoke Substances 0.000 title claims abstract description 131
- 238000009792 diffusion process Methods 0.000 claims description 31
- 230000009467 reduction Effects 0.000 claims description 24
- 238000010521 absorption reaction Methods 0.000 claims description 21
- 238000005192 partition Methods 0.000 claims description 20
- 235000019504 cigarettes Nutrition 0.000 claims description 11
- 229920000742 Cotton Polymers 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 241000237858 Gastropoda Species 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of near-suction type oil smoke suction machines, including shell, cabinet and blower fan system above shell, the shell includes the panel inclined with horizontal direction positioned at front end, it is characterized by: the blower fan system includes the first ternary blower and the second ternary blower being arranged in parallel, the blower fan system is arranged in cabinet, at least two smoke deflectors are provided on front side of the panel, the smoke deflector is in the lateral direction side by side, compartment of terrain arrangement, gap between the smoke deflector and panel, gap between adjacent smoke deflector constitutes air intake passage, the at least one of which of the smoke deflector can stretch panel relatively, to close air intake passage close to panel, or air intake passage is opened far from panel.By be arranged on front side of panel at least two side by side, spaced apart smoke deflector, effective Ground Split rectification and guidance can be carried out to the air-flow by outer rectifier, the turbulent flow and sinuous flow in air-flow is reduced, forms smooth air-flow.
Description
Technical field
The present invention relates to machine for kitchen use, especially a kind of near-suction type oil smoke suction machine.
Background technique
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top
The range hood of suction and near-absorption type, near-absorption type is separate using vortex wind pressure, will be largely apart from the closer oil smoke of hearth with arc
Line form absorbs, and can reduce the adverse effect to human health, and power source is closer from hearth, 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 application No. is 201320064301.1, packet
It includes the deflector equipped with air inlet and the blower fan system positioned at deflector rear, air inlet is connected with blower fan system, deflector
Top is provided with top plate, and a smoke barrier, the gap formation smoke collecting chamber of deflector and smoke barrier, the top are provided in front of air inlet
Plate is equipped with collection cigarette slot, collects the smoke guide wall that cigarette slot includes the upper wall being connected with deflector and is connected with top plate, and oil smoke passes through
The upper edge of smoke barrier and the gap of collection cigarette slot enter smoke collecting chamber.
The scheme of the prior art as described above, negative pressuren zone is smaller, and the negative pressure of air intake surface is unevenly distributed, and oil smoke enters collection
It is easy to cause turbulent flow and sinuous flow after smoke chamber, influences fume-exhausting efficiency, and deflector is difficult to clean；What blower fan system generallyd use
For multi-wing centrifugal fan, and multi-wing centrifugal fan is placed in lower triangle, in order to guarantee higher air intake efficiency, blower fan system body
Product is larger.And this arrangement of blower, due to impeller to gas prewhirl effect and gas in flowing into impeller into
Direction can be altered in steps in 90 ° of steering procedures of row, practical acting ability of the simple self-consistent inlet and outlet angle for impeller
It is unfavorable；In addition, blower is remote apart from wind pipe distance, it is difficult to overcome the resistance of ducting, blower faces user directly, lacks noise reduction and arranges
It applies, noise is higher.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above-mentioned problems of the prior art, providing a kind of oil smoke air-flow
Smoothly, it improves smoking efficiency and is convenient for clean near-suction type oil smoke suction machine.
The technical scheme of the invention to solve the technical problem is: a kind of near-suction type oil smoke suction machine, including shell,
Cabinet and blower fan system above shell, the shell include the panel inclined with horizontal direction positioned at front end,
It is characterized by: the blower fan system includes the first ternary blower and the second ternary blower being arranged in parallel, the blower fan system
Be arranged in cabinet, be provided at least two smoke deflectors on front side of the panel, the smoke deflector in the lateral direction side by side, interval
Ground arranges that the gap between the gap, adjacent smoke deflector between the smoke deflector and panel constitutes air intake passage, the smoke deflector
At least one of which can opposite panel it is flexible, to close air intake passage close to panel or open air inlet far from panel
Channel.
To ensure effective cleaning by edge suction steam and smog, so that the cleaning and its manufacture of range hood become
It is easy, the panel includes inner panel, and the outer panels for being centered around inner panel periphery, forming frame, is opened on the inner panel
Equipped with the opening that is connected in shell, the inner panel relative to outer panels towards shell sunken inside, when the smoke deflector is closed
It is in flat plane with outer panels.
The problem of to improve oil smoke diffusion, it is preferred that the smoke deflector includes that two energy are led with respect to panel stretches first
The second smoke deflector that cigarette plate and opposite panel are fixed, second smoke deflector are located between two the first smoke deflectors.
High-efficient due to ternary blower, noise is big, is provided in the shell and making an uproar for reducing what blower fan system generated
The noise reduction module of sound, the noise reduction module include the multiple baffles for constituting sound absorption back chamber and the suction for being provided with sound absorption back top of chamber
Acoustic aperture.
Preferably, in shell, to adapt to the cavity geometry of shell convenient for setting, the composition of the noise reduction module, which absorbs sound, is carried on the back
The baffle 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 greater than bottom baffle, the top baffle gradually inclination upwards from front to back offers sound-absorbing hole on the top baffle.
In order to play a role to the noise in wider frequency section, the sound absorption back is intracavitary to be provided with intermediate bulkhead and separates
Be provided with first chamber partition at the first chamber and second chamber for being located at arranged on left and right sides, in the first chamber and by first
Chamber is separated at least two first resonant cavities, is provided with second chamber partition in the second chamber and separates second chamber
At at least two second resonant cavities.
For the acoustic absorptivity for increasing high-frequency noise, the cavity volume of first resonant cavity is less than the second resonant cavity.
To make noise reduction module reach the sound absorption frequency range limit, the sound-absorbing hole is including at least two first sound-absorbing hole and at least
The aperture of two the second sound-absorbing hole, second sound-absorbing hole is greater than the first sound-absorbing hole.
For the acoustic absorptivity for increasing low-frequency noise, acoustical cotton, the suction have been attached on the baffle at the top of the noise reduction module
It is offered on sound cotton and the matched third sound-absorbing hole of the second sound-absorbing hole.
On the basis of not changing Cabinet Size, to increase air quantity, the first ternary blower includes the first 3 d impeller
With the first air inlet, the second ternary blower includes the second 3 d impeller and the second air inlet, on oil smoke flow path, institute
It states the second air inlet to be equal with the first air inlet position, first air inlet and the second air inlet are set side by side and distinguish
Towards the arranged on left and right sides of cabinet.
Preferably, to reduce windage under the premise of not increasing Cabinet Size, smoke absorption effect, first ternary are improved
First 3 d impeller of blower, the second ternary blower the second 3 d impeller respectively from the horizontal by 60 °~90 °, and
And two 3 d impellers tilt in the opposite direction.
According to an aspect of the present invention, the first ternary blower further includes the first spiral case, first 3 d impeller
It is arranged in the first spiral case, the second ternary blower further includes the second spiral case, and second 3 d impeller is arranged in the second snail
In shell, first spiral case and the second spiral case interval are arranged side by side, and first air inlet is formed on the first spiral case, institute
It states the second air inlet to be formed on the second spiral case, the first oil smoke channel is formed in first spiral case, first oil smoke is logical
The top in road forms the first air outlet, is formed with the second oil smoke channel, the top in second oil smoke channel in second spiral case
End forms the second air outlet.
According to another aspect of the present invention, the first 3 d impeller and the second 3 d impeller be spaced in the same spiral case,
It is arranged side by side, the first air inlet corresponding with the first 3 d impeller, the second air inlet corresponding with the second 3 d impeller
The opposite two sides of spiral case are respectively formed at, are provided with mounting plate between first 3 d impeller and the second 3 d impeller, it is described
Mounting plate extends to the top of spiral case, so that two independent first oil smoke channels will be separated into and the second oil smoke leads in spiral case
Road, the top in first oil smoke channel form the first air outlet, and the top in second oil smoke channel forms the second air outlet.
For convenient for simultaneously drive two impellers, further include the drive being arranged between the first 3 d impeller and the second 3 d impeller
Dynamic motor, the driving motor have the double output shaft for being respectively used to driving the first 3 d impeller and the second 3 d impeller.
Gas accordingly to export to two ternary blowers plays guide functions, is conducive to exit gas and forms laminar flow, from
And flow losses are greatly lowered, it improves efficiency, outlet housing, the outlet housing packet is provided at the air outlet of the blower fan system
The cover in hollow tube-shape is included, the cover has the first end and second end of opposite opening, and the bore of the first end is big
In the bore of second end, it is characterised in that: be provided with the first deflector and the second deflector in the cover, each deflector from
The first end of cover extends to second end, and the first diffusion runner, institute are formed between first deflector and the inner sidewall of cover
It states and forms the second diffusion runner between the second deflector and the inner sidewall of cover, the first diffusion runner and the second diffusion runner
Sectional area be gradually reduced respectively by the first end of cover to second end, the first diffusion runner at the first end of cover with
First air outlet of the first ternary blower is corresponding, the second diffusion runner at the first end of cover with the second ternary blower
Second air outlet is corresponding.
Compared with the prior art, the advantages of the present invention are as follows: when range hood does not work, smoke deflector closing can hide
Compared with the strainer and blower fan system of greasy dirt, so that range hood keeps neat and tidy；When range hood work, smoke deflector opening can
Play the role of drainage to the air of casing peripheral, effective Ground Split rectification can be carried out to the air-flow by outer rectifier and is drawn
It leads, reduces the turbulent flow and sinuous flow in air-flow, form smooth air-flow, that is, the collection cigarette area of shell is increased, it can be preferably
Improve the smoke discharging effect of range hood；Smoke deflector can be in flat plane with panel when range hood is in running order,
It may insure effective cleaning by edge suction steam and smog, so that the cleaning and its manufacture of range hood become easy；
By using two ternary blowers, blower fan structure is compact, and size is relatively small, and fan efficiency and wind pressure are high, the negative pressure ladder of generation
Degree is big, and smoking efficiency can be made significantly to be promoted；The blower overall volume constituted after parallel connection is smaller, it is not necessary to it is original to change cabinet
Size can make air quantity double again in the case where keeping higher wind pressure, improve fume-exhausting efficiency；Two air inlets are respectively facing
Arranged on left and right sides is suitable for two kitchen ranges, achievees the effect that not run cigarette, noise so that the negative pressure region area of two side peripheries increases
Propagation path reduces noise not towards user.
Detailed description of the invention
Fig. 1 is the schematic diagram of one embodiment of range hood of the invention；
Fig. 2 is the cross-sectional view of the range hood of Fig. 1；
Fig. 3 is the decomposition texture schematic diagram of the range hood of Fig. 1；
Fig. 4 is the noise reduction module schematic diagram of range hood of the invention；
Fig. 5 is the decomposition texture schematic diagram of the noise reduction module of range hood of the invention；
Fig. 6 is the sectional view along A-A of the noise reduction module of Fig. 4；
Fig. 7 is the B-B direction cross-sectional view of the noise reduction module of Fig. 4；
Fig. 8 is the cross section view of the noise reduction module of Fig. 4；
Fig. 9 is the blower fan system of the range hood of Fig. 1 and the cross-sectional view of outlet housing；
Figure 10 is the schematic diagram of the outlet housing of the range hood of Fig. 1；
Figure 11 is the schematic diagram of second embodiment of blower fan system of range hood of the invention；
Figure 12 is the blower fan system of the range hood of Figure 11 and the cross-sectional view of outlet housing.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Embodiment one
Referring to FIG. 1 to FIG. 3, a kind of near-suction type oil smoke suction machine, the cabinet 2 including shell 1 and above shell 1, for just
In description, hereinafter, "front", "rear", "left", "right", "upper", "lower" each mean that user when using range hood, inhales
Orientation of the kitchen ventilator relative to user, and structure is not limited.
In the present embodiment, shell 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 tilted backwards under (with horizontal direction tilt), thus towards the front side of user be inclined surface.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.
It is provided with panel 14 between two 11 front ends of the first side plate, opening 141 is offered on panel 14, and is connected in shell 1
It is logical, at least two smoke deflectors 15 are provided on front side of panel 14.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
At air intake passage 151.Panel 14, smoke deflector 15 are inclined with horizontal direction, and inclined direction is consistent.It is arranged in this way
Smoke deflector 15 can carry out effective Ground Split rectification and guidance to by the air-flow of outer rectifier, reduce turbulent flow in air-flow and
Sinuous flow forms smooth air-flow；It is not interfere with each other between 151 different location of air intake passage, effectively prevents generating inside shell 1 disorderly
Stream and sinuous flow；Spaced apart smoke deflector 15 can effectively be divided, rectify and guide to oil smoke, and oil smoke enters air intake passage 151
It is preceding also to be contacted with smoke deflector 15, condensation can be played the role of, so that bulky grain grease is attached on smoke deflector 15, prevent big
Grain grease enters in range hood.Smoke deflector 15 can be put down with panel 14 in flat when range hood is in running order
Face, it can be ensured that by 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 inner panel 142, and is centered around the outer panels 143 of 142 periphery of inner panel, formation frame, above-mentioned
Opening 141 be provided on inner panel 142, it is preferred that opening 141 be located at 142 center of inner panel.Inner panel 142 is relative to outer
Panel 143 is closed towards 1 sunken inside of shell, and among the outer edge of inner panel 142 and the inward flange of outer panels 143, inner face
Plate 142 and outer panels 143 are in plane.Above-mentioned smoke deflector 15 and panel 14 are in flat plane, refer to smoke deflector 15 and outer
Panel 143 is in flat plane.When oil smoke rises, shell is entered from the opening 141 on inner panel 142 by air intake passage 151
In the cavity of body 1.
1 inside of shell is provided with strainer 16 with 141 corresponding positions of opening.Above-mentioned smoke deflector 15 may include activity
The first smoke deflector 152 and the second fixed smoke deflector 153, can also be movable first smoke deflector 152.In the present embodiment
In, it is preferred that smoke deflector 15 is three, wherein the left and right sides is movable first smoke deflector 152, and two first are led cigarette
It is the second fixed smoke deflector 153 between plate 152, forms difference in height, shape between the first smoke deflector 152 and the second smoke deflector 153
At the effect of the diffusion drainage device as described in the Chinese patent application No. is 201310627395.3 of the applicant, greatly
Ground improves the problem of oil smoke diffusion.
First smoke deflector 152 is connect by telescopic rod 154 with inner panel 142, and the second smoke deflector 153 passes through mounting bracket
155 are connected and fixed with inner panel 142 or strainer 16.The prior art can be used in the telescopic moving mode of telescopic rod 154, can be in shell
The driving mechanisms such as electric pushrod are set in 1 to drive the movement of telescopic rod 154.
The state shown in FIG. 1 opened for smoke deflector 15, when range hood does not work, smoke deflector 15 can be into shell 1
Direction is mobile to be closed, and air intake passage 151 is closed, and cover the lower space of shell 1, is hidden the strainer 16 and wind compared with greasy dirt
Machine system, so that range hood keeps neat and tidy；When range hood work, smoke deflector 15 is beaten to the movement of 1 outside direction of shell
It opens, opens air intake passage 151, drainage can be played the role of to the air on 1 periphery of shell, that is, increasing the collection of shell 1
Cigarette area can preferably improve the smoke discharging effect of range hood.
The bottom of shell 1,13 bottom of back side panel and panel are connected with bottom plate 17 between 14 bottom.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 shell 1.
Cabinet 2 includes four the second side plates 21, is square or rectangular body structure to surround cross section, cabinet
2 bottom opening, to can be entered in cabinet 2 after oil smoke enters in the cavity in shell 1.It is enclosed between each second side plate 21
At cavity constitute the air duct 25 passed through for oil smoke.
Lubricating cup 3 is provided with below the bottom plate 17 of shell 1.
In the present embodiment, blower fan system 4 is provided in cabinet 2, it is preferred that blower fan system 4 is ternary blower, ternary wind
The prior art can be used in machine, as disclosed in the Chinese patent application No. is 201310418009.X.Blower fan system 4 can be single
A ternary blower, two ternary blowers in parallel or two concatenated ternary blowers, due to ternary blower have it is compact-sized,
The feature that size is relatively small, fan efficiency and wind pressure are high, the suction gradient that can be generated is big, can to smoke efficiency significantly
It is promoted.The specific structure of blower fan system 4 will be described in detail later.It is provided with above cabinet 2 and connects with the air outlet of blower fan system 4
The outlet housing 5 connect, so that oil smoke can be drained into common flue by outlet housing 5.
Since the noise of ternary blower is larger, and noise frequency range is wide, in the cavity of shell 1, is preferably located at blower fan system 4
Lower section be 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 greater 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 rough triangle, and thus above-mentioned each plate is common
The sound absorption back chamber of composition is in rough triangulo column (up big and down small).
Noise reduction module 7 further includes intermediate bulkhead 72, first chamber partition 73 and second chamber partition 74.Intermediate bulkhead 72 is set
Set sound absorption back it is intracavitary, and will sound absorption back chamber be divided into positioned at the first chamber 751 in left side and positioned at the second chamber on right side
752.Preferably, intermediate bulkhead 72 can be parallel with right baffle-plate 711 or right shell body 712, the first chamber that intermediate bulkhead 72 is separated into
Room 751 and second chamber 752 are equal.
First chamber partition 73 is arranged in first chamber 751, including at least two, each first chamber partition 73 is on a left side
Extend between baffle 711 and intermediate bulkhead 72, and each first chamber partition 73 from top baffle 716 from front to back diagonally downward
It bends after extending certain distance towards rear baffle 714.One of first chamber partition 73 is located at another first chamber partition
73 lower section, each baffle and first chamber partition 73 will from top to bottom be separated at least three first in first chamber 751 as a result,
Resonant cavity 761.
Second chamber partition 74 is arranged in second chamber 752, including at least one, second chamber partition 74 is at middle interval
Extend between plate 72 and right shell body 712.One of second chamber partition 74 can be bent downward from top baffle 716 extend into it is several
Section is parallel with front apron 713, rear baffle 714 and bottom baffle 715 respectively, and second chamber 752 is thus separated into two second and is total to
Shake chamber 762, i.e. the second chamber partition 74, top baffle 716, intermediate bulkhead 72, second resonant cavity between right shell body 712
762, rest part then constitutes another the second resonant cavity 762.Can also be arranged in another resonant cavity 762 another
Two compartment spacers 74 are in tabular, extend between intermediate bulkhead 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
Acoustic aperture 771 and the second sound-absorbing hole 772 are 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 the surface straggly for being arranged in top baffle 716 of the second sound-absorbing hole 772.
First sound-absorbing hole 771 can be round hole, square hole, hex hole etc., and aperture is 1mm~5mm, this is because noise reduction module
7 and first have certain spacing between ternary blower 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 make noise reduction module 7 reach sound absorption the frequency range limit.The aperture of second sound-absorbing hole 772 is greater than first
Sound-absorbing hole 771.
Top baffle 716 has attached acoustical cotton 781 above, offers on acoustical cotton 781 and the second sound-absorbing hole 772 matched the
Three sound-absorbing hole 773, to increase the acoustic absorptivity of low-frequency noise with sound absorption back chamber cooperation.
Due to below ternary blower on noise transmission path, leftward position is mainly high-frequency noise, therefore above-mentioned first
The cavity volume of resonant cavity 761 can increase the sound absorption system to high-frequency noise less than the second resonant cavity 762, i.e. the first resonant cavity 761
Number, the second resonant cavity 762 are then semi-open space, increase the acoustic absorptivity to mid-frequency noise.This mazy resonant cavity
Increase the wide band sound absorption of acoustical cotton 78.
Alternatively, first chamber partition 73 and second chamber partition 74 or other shapes, as long as the can be separated
Space in one chamber 751 and second chamber 752, each resonant cavity after segmentation can for cuboid, cylindrical body, cone,
Irregular body etc..In addition, the surface that intracavitary, each resonant cavity is carried on the back in sound absorption can also attach acoustical cotton.
In order to reduce absorbed noise frequency, micro-pore diameter is reduced, the spacing between adjacent cells is increased, increases 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 one third that should be corresponding wave length of sound of each resonant cavity.
By above-mentioned arrangement, there is good inhibiting effect for ternary blower radiated noise, and 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, offers the second oil dripping on the bottom plate 17 of shell 1
Hole 171 (can be corresponding with the first oil dripping hole 7151, can not also correspond to), and the position of the position of above-mentioned oil dripping hole and lubricating cup 3
Set correspondence.Even if thus there is the grease after separation to enter noise reduction module 7, the first oil dripping hole 7151 and the second oil dripping hole can also be passed through
171 are discharged to lubricating cup 3, in order to avoid influence the noise reduction effect of noise reduction module 7.
Referring to Fig. 9 and Figure 10, in the present embodiment, blower fan system 4 include two can independent operation the first ternary blower
System 41 and the second ternary blower fan system 42, two ternary fan parallel-connection settings.By using 3 d impeller, compared to centrifugation wind
Flow efficiency can be significantly increased in machine, improve air quantity.
The first 3 d impeller that first ternary blower fan system 41 spiral case 411 and be arranged in the first spiral case 411 including first
412, the second 3 d impeller 422 that the second ternary blower fan system 42 spiral case 421 and be arranged in the second spiral case 421 including second.
First spiral case 411 and the second spiral case 421 side by side, compartment of terrain arrangement, be formed with the first air inlet 413 on the first spiral case 411, second
Be formed with the second air inlet 423 on spiral case 421, the air inlet of two spiral cases away from each other, i.e. the air inlet of the first spiral case 411
313 are formed in the side far from the second spiral case 421, two back-to-back settings of spiral case so that two ternary blowers in it is left and right side by side
Arrangement, and the first air inlet 413 is towards the left side of cabinet 2, the second air inlet 423 towards the right side of cabinet 2.Oil smoke from collection cigarette
When cover 1 enters, entered in blower fan system 4 from arranged on left and right sides respectively.The first oil smoke channel 441 is formed in first spiral case 411,
The top in the first oil smoke channel 441 forms the first air outlet 414, the second oil smoke channel 442 of formation in the second spiral case 421, and second
442 top of oil smoke channel forms the second air outlet 424, the first air outlet 414 and the second air outlet 424 side by side, compartment of terrain arrangement.
The prior art can be used in first 3 d impeller 412 and the second 3 d impeller 422, as the applicant application No. is
201620102790.9 patent disclosed in structure.First 3 d impeller 412 and the second 3 d impeller 422 share same
Driving motor 43, driving motor 43 are arranged between the first spiral case 411 and the second spiral case 421, and driving motor 43 has dual output
Axis, the output shaft 431 thus extended to the left can connect with the first 3 d impeller 412 and the first 3 d impeller 412 driven to operate, to
The output shaft 431 of right extension can connect with the second 3 d impeller 422 and the second 3 d impeller 422 is driven to operate.Thus it may make
Two ternary blowers have preferable synchronism, while again can be energy saving.
First 3 d impeller 412 and the second 3 d impeller 422 can be respectively from the horizontal by 60 °~90 °, two impellers
(the first 3 d impeller 412 is tilted to the left, and the second 3 d impeller 422 is tilted to the right) is tilted in the opposite direction, it is possible thereby to
Reduce windage, improves smoke absorption effect.The center of first 3 d impeller 412 and 25 entrance of air duct of range hood keep certain
Distance, the distance are 1~2 times of diameter of the first 3 d impeller 412, the center of the second 3 d impeller 422 and range hood
25 entrance of air duct maintains a certain distance, which is 1~2 times of the diameter of the second 3 d impeller 422, impeller center and air duct
The distance of 25 entrances has to be larger than impeller diameter, and the rotary sieve 6 of such 25 inlet of air duct can just play a role, but can not
Greater than 2 times diameters, otherwise apart from negative pressure region apart from too far.
Above-mentioned two ternary blower can use same structure, and this arrangement, blower fan system overall volume
It is smaller, the original size of cabinet 2 can not changed, air quantity can made double again in the case where keeping higher wind pressure, improved and inhale
Oil smoke efficiency.Two air inlets are respectively facing arranged on left and right sides, so that the negative pressure region area of two side peripheries increases, are suitable for two
A kitchen range achievees the effect that not run cigarette；Noise transmission path makes towards arranged on left and right sides rather than direction in the prior art
User thus reduces noise.
The top of blower fan system 4 is provided with outlet housing 5, and the cover 51 of outlet housing 5 covers the first ternary blower fan system 41
First air outlet 414 of the first spiral case 411, the second air outlet 424 of the second spiral case 421 of the second ternary blower fan system 42, simultaneously
And it is connected to.In the present embodiment, outlet housing 5 includes cover 51, the deflector being arranged in cover 51.Cover 51 is in hollow
Tubular, and opposite first end 511 (lower end) and second end 512 (upper end) opening, the bore of first end 511 are greater than second end
512 bore is open and is gradually reduced from the position close to blower fan system 4 to far from the position of blower fan system 4, oil smoke air-flow from
First end 511 enters in cover 51, and leaves cover 51 from second end 512 and enter the external pipe connecting with outlet housing 5.
Deflector includes the first deflector 521 and the second deflector 522, first end of first deflector 521 from cover 51
511 to second end 512 extend, and the first deflector 521 at the first end 511 of cover 51, with the first ternary blower fan system
First edge 415 (first of the second air outlet 424 close to the second ternary blower fan system 42 at 41 the first air outlet 414
The right edge of air outlet) it is corresponding, the second deflector 522 at the first end 511 of cover 51, with the second ternary blower fan system 42
The second air outlet 424 at (second goes out at the second edge 425 of the first air outlet 414 close to the first ternary blower fan system 41
The left side edge in air port) it is corresponding.Each deflector has the width extended in front and rear direction.First deflector 521 is by first
End 511 to second end 512, be increasingly towards the second deflector 522 (to the right) inclination, the second deflector 522 is by first end 511 to the
Two ends 512 are increasingly towards the first deflector 521 inclination (to the left), i.e., each deflector deviates intermediate position from 51 bottom of cover
It sets to the position of 51 top center of cover and extends.The top of first deflector 521 and the second deflector 522 is (close to cover 51
Second end 512) it interconnects, it is preferred that the junction of two deflectors is in rounding off, to guide air-flow smooth transition.
The front and rear sides side 5211,5212 of first deflector 521 is connect with the inner sidewall of cover 51 always, the second water conservancy diversion
The front and rear sides side 5221,5222 of plate 522 is connect with the inner sidewall of cover 51 always.Thus cover 51 is divided into cover 51
The first diffusion runner 531,51 inner sidewall of cover between inner sidewall and the first deflector 521 and between the second deflector 522
Second diffusion runner 532, the first diffusion runner 531 and the second diffusion runner 532 are independent mutually.First diffusion runner 531 is in cover
It is corresponding with the first air outlet 414 of the first ternary blower fan system 41 at the first end 511 of body 51, that is, the first air outlet is completely covered
414, the second diffusion runner 532 is right with the second air outlet 424 of the second ternary blower fan system 42 at the first end 511 of cover 51
It answers, that is, the second air outlet 424 is completely covered.The sectional area of first diffusion runner 531 by first end 511 to second end 512 gradually
It reduces, sectional area first end 511 to the second end 512 of the second diffusion runner 532 is gradually reduced, as a result, the first diffusion runner 531
The muzzle velocity at top is greater than the muzzle velocity of 531 bottom of the first diffusion runner, the muzzle velocity at 532 top of the second diffusion runner
Greater than the muzzle velocity of 532 bottom of the second diffusion runner.
By the way that above-mentioned deflector is arranged, so that be connected to the first air outlet 414 of the first ternary blower fan system 41 the
The gas velocity of one diffusion runner 531, the second diffusion runner 42 being connected to the second air outlet 424 of the second ternary blower fan system 42
It spends closer to each other.This guide functions of outlet housing 5 are conducive to exit gas and form laminar flow, enter extension tube attached after forming laminar flow
Road is avoided the defect for being directly entered with turbulent condition external pipe after air-flow comes out from spiral case, also avoids two ternary wind
Strong friction and shock when the air outlet air-flow mixing of machine improves efficiency so that flow losses be greatly lowered.
It is densely covered with sound-absorbing hole 54 on first deflector 521 and/or the second deflector 522, advantageously reduces outlet noise.For
Further decrease noise, can also space between the first deflector 521 and the second deflector 522 partition 55 is set so that
Space between first deflector 521 and the second deflector 522 is divided at least two resonant cavities 551.Alternatively, can also be
Acoustical cotton is arranged in space between first deflector 521 and the second deflector 522.Alternatively, partition can also be replaced with reinforcing rib
55, to enhance the intensity of deflector.
Embodiment two
Referring to Figure 11 and Figure 12, in the present embodiment, with above-described embodiment one the difference is that, the first ternary blower
System 41 and the second ternary blower fan system 42 share the same spiral case 44, i.e. the first 3 d impeller of the first ternary blower fan system 41
412 and second second 3 d impeller 422 of ternary blower fan system 42 be co-located in the same spiral case 44.
It is provided with mounting plate 45 between two 3 d impellers, to separating two 3 d impellers the two of mounting plate 45
Side, mounting plate 45 extend to the top of spiral case 44, so that two 441 Hes of independent first oil smoke channel will be separated into spiral case 44
Second oil smoke channel 442.Driving motor 43 is passed through from mounting plate 45 and is connected and fixed with mounting plate 45.
In the present embodiment, outlet housing 5 is only including cover 51 and the deflector 56 being arranged in cover 51, deflector 56
Extend on the flow direction of oil smoke, in the present embodiment, to extend in the longitudinal direction, position and 45 phase of mounting plate of deflector 56
It is corresponding, so that cover 51 is divided into independent first diffusion runner 531 corresponding with the oil smoke channel in spiral case 44 and the
Two diffusion runners 532.
Alternatively, outlet housing 5 can also use the structure of embodiment one.
Claims (15)
1. a kind of near-suction type oil smoke suction machine, including shell (1), the cabinet (2) and blower fan system (4) that are located above shell (1),
The shell (1) includes the panel (14) inclined with horizontal direction positioned at front end, it is characterised in that: the blower fan system packet
The the first ternary blower (41) and the second ternary blower (42) being arranged in parallel are included, the blower fan system (4) is arranged in cabinet (2)
It is interior, be provided at least two smoke deflectors (15) on front side of the panel (14), the smoke deflector (15) in the lateral direction side by side,
It is arranged every ground, the gap between the gap, adjacent smoke deflector (15) between the smoke deflector (15) and panel (14) constitutes air inlet
At least one of which in channel (151), the smoke deflector (15) panel (14) can stretch relatively, to close close to panel (14)
It closes air intake passage (151) or opens air intake passage (151) far from panel (14).
2. near-suction type oil smoke suction machine according to claim 1, it is characterised in that: the panel (14) includes inner panel
(142), it and the outer panels (143) that are centered around inner panel (142) periphery, form frame, offers on the inner panel (142)
With the opening (141) that is connected in shell (1), the inner panel (142) relative to outer panels (143) towards shell (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: the smoke deflector (15) includes two energy phases
Fixed the second smoke deflector (153) of the first smoke deflector (152) and opposite panel (14) stretch to panel (14), described second leads
Cigarette plate (153) is located between two the first smoke deflectors (152).
4. near-suction type oil smoke suction machine described in any one of claim 1 to 3, it is characterised in that: set in the shell (1)
It is equipped with the noise reduction module (7) of the noise generated for reducing blower fan system (4), the noise reduction module (7) includes constituting sound absorption back
Multiple baffles of chamber and the sound-absorbing hole for being provided with sound absorption back top of chamber.
5. near-suction type oil smoke suction machine according to claim 4, it is characterised in that: the composition of the noise reduction module (7) absorbs sound
The baffle of back chamber includes 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 be greater than bottom baffle (715), the top baffle (716) by
It gradually tilts upwards front to back, offers sound-absorbing hole on the top baffle (716).
6. near-suction type oil smoke suction machine according to claim 5, it is characterised in that: the sound absorption back is intracavitary to be 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 partition (73) and first chamber (751) is separated at least two first resonant cavities (761), described second
It is provided with second chamber partition (74) in chamber (752) and second chamber (752) is separated at least two second resonant cavities
(762)。
7. near-suction type oil smoke suction machine according to claim 6, it is characterised in that: the cavity of first resonant cavity (761)
Volume is less than the second resonant cavity (762).
8. near-suction type oil smoke suction machine according to claim 4, it is characterised in that: the sound-absorbing hole includes at least two first
The aperture of sound-absorbing hole (771) and at least two second sound-absorbing hole (772), second sound-absorbing hole (772) is greater than the first sound-absorbing hole
(771)。
9. near-suction type oil smoke suction machine according to claim 8, it is characterised in that: the baffle at the top of the noise reduction module (7)
On attached acoustical cotton (781), offered on the acoustical cotton (781) and the matched third sound-absorbing hole of the second sound-absorbing hole (772)
(773)。
10. near-suction type oil smoke suction machine according to claim 1, it is characterised in that: the first ternary blower (41) includes
First 3 d impeller (412) and the first air inlet (413), the second ternary blower (42) include the second 3 d impeller (422)
With the second air inlet (423), on oil smoke flow path, second air inlet (413) and the first air inlet (413) position etc.
Together, first air inlet (413) and the second air inlet (413) are set side by side and are respectively facing left and right the two of cabinet (2)
Side.
11. near-suction type oil smoke suction machine according to claim 10, it is characterised in that: the of the first ternary blower (41)
One 3 d impeller (412), the second ternary blower (42) the second 3 d impeller (422) respectively from the horizontal by 60 °~
90 °, and two 3 d impellers tilt in the opposite direction.
12. near-suction type oil smoke suction machine according to claim 10, it is characterised in that: the first ternary blower (41) is also wrapped
It includes the first spiral case (411), the first 3 d impeller (412) setting is in the first spiral case (411), the second ternary blower
It (42) further include the second spiral case (421), the second 3 d impeller (422) setting is in the second spiral case (421), first snail
Shell (411) and the second spiral case (421) interval are arranged side by side, and first air inlet (413) is formed in the first spiral case (411)
On, second air inlet (423) is formed on the second spiral case (421), is formed with the first oil smoke in first spiral case (411)
The top in channel (441), first oil smoke channel (441) forms the first air outlet (414), in second spiral case (421)
It is formed with the second oil smoke channel (442), the top in second oil smoke channel (442) forms the second air outlet (424).
13. near-suction type oil smoke suction machine according to claim 10, it is characterised in that: the first 3 d impeller (412) and second
3 d impeller (422) in the same spiral case (44) interval, be arranged side by side, corresponding with the first 3 d impeller (412) the
One air inlet (413), the second air inlet corresponding with the second 3 d impeller (422) (423) are respectively formed at spiral case (44) phase
Pair two sides, be provided with mounting plate (45), the peace between first 3 d impeller (412) and the second 3 d impeller (422)
Loading board (45) extends to the top of spiral case (44), thus by two independent first oil smoke channels are separated into spiral case (44)
(441) and the second oil smoke channel (442), the top formation the first air outlet (414) in first oil smoke channel (441) are described
The top in the second oil smoke channel (442) forms the second air outlet (424).
14. near-suction type oil smoke suction machine according to claim 12 or 13, it is characterised in that: further include being arranged in the first ternary
Driving motor (43) between impeller (412) and the second 3 d impeller (422), the driving motor (43), which has, to be respectively used to drive
The double output shaft of dynamic first 3 d impeller (412) and the second 3 d impeller (422).
15. near-suction type oil smoke suction machine according to claim 12 or 13, it is characterised in that: the blower fan system (4) goes out
It is provided at air port outlet housing (5), the outlet housing (5) includes the cover (51) in hollow tube-shape, and the cover (51) has
Opposite, opening first end (511) and second end (512), the bore of the first end (511) are greater than second end (512)
Bore, is provided with the first deflector (521) and the second deflector (522) in the cover (51), and each deflector is from cover
(51) first end (511) extends to second end (512), between first deflector (521) and the inner sidewall of cover (51)
The first diffusion runner (531) is formed, forms the second diffusion stream between second deflector (522) and the inner sidewall of cover (51)
The sectional area of road (532), the first diffusion runner (531) and the second diffusion runner (532) is respectively by the first of cover (51)
End (511) to second end (512) be gradually reduced, the first diffusion runner (531) at the first end (511) of cover (51) with
The first air outlet (414) of first ternary blower (41) is corresponding, first end of the second diffusion runner (532) in cover (51)
(511) corresponding with the second air outlet (424) of the second ternary blower (42) at.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923992.9A CN109595639B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923992.9A CN109595639B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
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| CN109595639A true CN109595639A (en) | 2019-04-09 |
| CN109595639B CN109595639B (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923992.9A Active CN109595639B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
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Cited By (3)
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| CN110207228A (en) * | 2019-04-19 | 2019-09-06 | 华帝股份有限公司 | Range hood capable of independently adjusting left and right air inlet amount |
| CN111197780A (en) * | 2020-01-13 | 2020-05-26 | 宁波方太厨具有限公司 | Range hood and control method thereof |
| WO2022217867A1 (en) * | 2021-04-13 | 2022-10-20 | 无锡小天鹅电器有限公司 | Rear cover apparatus and clothing treatment device |
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|---|---|
| CN109595639B (en) | 2024-01-16 |
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