CN109595641A - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
- Publication number
- CN109595641A CN109595641A CN201710924362.3A CN201710924362A CN109595641A CN 109595641 A CN109595641 A CN 109595641A CN 201710924362 A CN201710924362 A CN 201710924362A CN 109595641 A CN109595641 A CN 109595641A
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- China
- Prior art keywords
- impeller
- deflector
- spiral case
- range hood
- air inlet
- Prior art date
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- 239000000779 smoke Substances 0.000 claims abstract description 120
- 239000003517 fume Substances 0.000 claims abstract description 38
- 230000001133 acceleration Effects 0.000 claims abstract description 23
- 230000007423 decrease Effects 0.000 claims abstract description 5
- 238000009792 diffusion process Methods 0.000 claims description 27
- 235000019504 cigarettes Nutrition 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000000391 smoking effect Effects 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002893 slag Substances 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
- F24C15/2035—Arrangement or mounting of filters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a kind of range hoods, including exhaust fume collecting hood, the cabinet being arranged in above exhaust fume collecting hood and the blower fan system being arranged in cabinet, air inlet is offered on exhaust fume collecting hood, smoke deflector is provided with below air inlet, blower fan system includes the first ternary blower and the second ternary blower being arranged in parallel, lower surface at least part of smoke deflector be in from centre to edge gradually upwards inclination, thus wall surface cooperation corresponding to exhaust fume collecting hood and limit the acceleration channels that cross section from the bottom to top gradually decreases.The amount entered inside range hood in the oil smoke unit time can be increased by acceleration channels, promote smoke absorption effect, pass through the rotary sieve being arranged at tunnel inlet, so that oil smoke is to pass through rotary sieve before accelerating without air duct with lower flow velocity, the time to contact with each other between the two is longer, and oil smoke can be made fully to collide with rotary sieve.
Description
Technical field
The present invention relates to machine for kitchen use, especially a kind of range hood.
Background technique
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top
Suction and near-absorption type, the principle that the range hood of top suction type utilizes hot gas to rise, suction is generated when cooking to be risen naturally
Oil smoke, additionally due to it is clean and tidy light and handy, occupy little space the advantages that, and it is in an increasingly wide range of applications.
Existing range hood can be equipped with filter screen for the purpose of collecting the oil smoke generated in cooking, flue dust etc..
A kind of smoke exhaust ventilator as disclosed in the Chinese patent application No. is 200780027956.9 has duct-ventilated hood, is set to and leads to
Exhaust fan in air duct, the filter screen in ventilating duct and before exhaust fan, driving portion are connected on filter screen, hood
Interior air entry is nearby equipped with flat cowling panel；For another example one kind disclosed in the Chinese patent application No. is 201620110299.0
Plate smoke exhaust ventilator, including smoke collecting chamber, the air duct being arranged in above smoke collecting chamber, the blower being arranged in air duct, filtering oil smoke dress
Set, lampblack filter include with the coaxial mounted filter screen disk of blower, filter screen disk includes the support connecting with fan shaft
Frame and fixed filter screen on the support frame.
Above-mentioned range hood can expeditiously carry out at purification filtering oil smoke by the filter screen of installation rotation
Reason and decomposition.However, in the range hood of top suction type, the arrangement of above-mentioned blower causes oil smoke air-flow to cannot achieve directly
It inhales in line, therefore increases windage, reduce smoking efficiency.In addition, the cowling panel that the air inlet of range hood is arranged in is in
Flat condition can not play the role of drainage, acceleration to oil smoke, it is difficult to effectively promotion smoke absorption effect, and also cowling panel is with respect to position
Fixation is set, negative pressuren zone cannot be adjusted according to the service condition of hearth.
A kind of for another example rotation net purification device of smoke exhaust ventilator disclosed in the Chinese patent application No. is 98202073.2, is taking out
It is fixed with swing frame on the motor shaft of kitchen ventilator wind wheel mouth, purse seine is welded around swing frame, on the inside of swing frame and purse seine, uses snap ring
A rotation net is fixed, drives wind wheel, swing frame, rotation net, purse seine to rotate by motor, the rotation net of rotation carries out slag, oil, gas to oil smoke
Three's separation.Although this pumping smoke extractor, it is able to achieve and directly inhales in line, however similar with above-mentioned vertical or tilting blower, rotation
Turn the air inlet that centrifugal blower can only be arranged in strainer, motor or individually motor driven rotation by centrifugal blower, thus
Not only result in biggish windage, and rotary sieve certain rectified action is played to oil smoke after enter centrifugal blower immediately
Interior, path is too short, and rotary sieve embody the effect of airflow smooth can not farthest.
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 raising oil suction
The range hood of cigarette efficiency and oil separation effect.
The technical scheme of the invention to solve the technical problem is: a kind of range hood, including exhaust fume collecting hood, setting
Cabinet above exhaust fume collecting hood and the blower fan system being arranged in cabinet offer air inlet on the exhaust fume collecting hood, are located at air inlet
Smoke deflector is provided with below mouthful, it is characterised in that: the blower fan system includes the first ternary blower and the two or three being arranged in parallel
First blower, the smoke deflector lower surface at least part be in from centre to edge gradually upwards inclination, thus with exhaust fume collecting hood
Corresponding wall surface cooperates and limits the acceleration channels that cross section from the bottom to top gradually decreases.
Preferably, effectively accelerated for the oil smoke to smoke deflector periphery, the lower surface of the smoke deflector includes first
At least one of inclined-plane, the second inclined-plane and third inclined-plane, first inclined-plane is tilted upward to the left by centre and exhaust fume collecting hood
Left plate between form the first acceleration channels, second inclined-plane by intermediate inclination upward to the right, with the right side of exhaust fume collecting hood
The second acceleration channels are formed between plate, the third inclined-plane is from centre to front side towards between inclination and the front side board of exhaust fume collecting hood
Form third acceleration channels.
It preferably, is the acceleration for further increasing acceleration channels, the interior table of the left plate, right side plate and front side board
Face is also in gradually intilted inclined-plane from the bottom to top.
It further, is the installation convenient for smoke deflector, four corners of the upper surface of the smoke deflector are respectively arranged with company
Column is connect, the connecting column is connected to the outer edge of the air inlet of exhaust fume collecting hood, so that smoke deflector be connect with exhaust fume collecting hood.
To allow smoke deflector according to the big minor adjustment height of oil smoke, preferably to improve smoke absorption effect, while
Smoke deflector can be raised to extreme higher position and close air inlet when range hood is closed, and avoid the oil vapor backstreaming of common flue, described
Connecting column is by motor-driven telescopic rod.
Preferably, to be formed with air duct convenient for filtering, in the cabinet, in the cabinet, the inlet in air duct is provided with
Rotary sieve, the rotary sieve include the Dropbox for crossing filtering fume and the motor for driving Dropbox to rotate, the motor
Output shaft be inserted into the center of Dropbox and be connected and fixed, the motor is connected and fixed by electric machine support and cabinet.
For the rigidity for promoting Dropbox, filter effect is promoted as much as possible, is offered on the surface of the Dropbox along center pair
The slot of arc for claiming and being arranged in array, each slot is radially extended along Dropbox, and the slot at least divides along the radial direction of Dropbox
It is furnished with two layers.
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.
Noise is exported to reduce, is densely covered with sound-absorbing hole on first deflector and/or the second deflector.
Compared with the prior art, the advantages of the present invention are as follows: there is the smoke deflector of inclined lower surface by being arranged, with collection cigarette
Cover collectively forms oil smoke acceleration channels, can increase the amount entered inside range hood in the oil smoke unit time, promotes fume-exhausting
Effect；By at the tunnel inlet in cabinet be arranged rotary sieve, can make oil smoke with without air duct accelerate before with compared with
For low flow velocity by rotary sieve, the time to contact with each other between the two is longer, can make oil smoke and rotary sieve fully
Collision, while rectified action is played to the oil smoke of process, and complete rectification by longer air duct, to reach preferable filtering
Effect；By using two ternary blowers, blower fan structure is compact, and size is relatively small, and fan efficiency and wind pressure are high, and generation is born
It presses gradient big, smoking efficiency can be made significantly to be promoted；This mode being arranged in juxtaposition is particularly suitable for top-sucking kitchen ventilator,
The blower overall volume constituted after parallel connection is smaller, it is not necessary to change the original size of cabinet, again in the case where keeping higher wind pressure
Air quantity can be made double, improve fume-exhausting efficiency；Two air inlets are respectively facing arranged on left and right sides, so that the negative pressure of two side peripheries
Region area increases, and is suitable for two kitchen ranges, achievees the effect that not run cigarette, noise transmission path is reduced not towards user
Noise.
Detailed description of the invention
Fig. 1 is the schematic diagram of range hood one embodiment of the invention；
Fig. 2 is the front section view of the range hood of Fig. 1；
Fig. 3 is the side sectional view of the range hood of Fig. 1；
Fig. 4 is that the cabinet of the range hood of Fig. 1 hides the schematic diagram of front side wall；
Fig. 5 is the schematic diagram of the smoke deflector of the range hood of Fig. 1；
Fig. 6 is the schematic diagram of the rotary sieve of range hood of the invention；
Fig. 7 is the cross-sectional view of the blower fan system of the range hood of Fig. 1；
Fig. 8 is the schematic diagram of the outlet housing of the range hood of Fig. 1；
Fig. 9 is the schematic diagram of second embodiment of blower fan system of range hood of the invention；
Figure 10 is the cross-sectional view of second embodiment of blower fan system of range hood of the invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Embodiment one
Referring to figs. 1 to 4, a kind of range hood, including exhaust fume collecting hood 1, the cabinet 2 being arranged in above exhaust fume collecting hood 1, cabinet 2
Inside it is provided with blower fan system 4.Air inlet 11 is offered on exhaust fume collecting hood 1, the blower fan system 4 in cabinet 2 can aspirate oil smoke as a result,
Common flue is discharged into after entering cabinet 2 by air inlet 11.
Cabinet 2 includes left side wall 21, right side wall 22, front side wall 23 and rear wall 24, the cavity shape between above-mentioned each side wall
At the air duct 25 of oil smoke air-flow, it is preferred that air duct 25 is gradually reduced from the bottom to top.
In the present embodiment, blower fan system 4 is ternary blower, and the prior art can be used in ternary blower, such as application No. is
201310418009.X Chinese patent disclosed in.Blower fan system 4 can be single ternary blower, two ternarys in parallel
Blower or two concatenated ternary blowers, since ternary blower has, compact-sized, size is relatively small, fan efficiency and wind pressure
High feature, the suction gradient that can be generated is big, and smoking efficiency can be made significantly to be promoted.The specific structure of blower fan system 4 will
It is described in detail below.The outlet housing 5 connecting with the air outlet of blower fan system 4 is provided with above cabinet 2, to pass through outlet housing
5, oil smoke can be drained into common flue.
Concave up smoke collecting chamber 12 is formed in exhaust fume collecting hood 1, air inlet 11 is located at the top of smoke collecting chamber 12, smoke collecting chamber 12
Interior, opposite with air inlet 11 position is provided with smoke deflector 8, and the progress of smoke deflector 8 is first passed through before oil smoke enters range hood
Filtration treatment is condensed, the separation of first time oil smoke is carried out.In conjunction with Fig. 5, the cross section of the shape of smoke deflector 8, size and smoke collecting chamber 12
It essentially coincides.
Smoke deflector 8 lower surface at least part be in gradually to be tilted upwards from centre to edge, thus with the phase of exhaust fume collecting hood 1
Wall surface is answered to cooperate and limit the acceleration channels that cross section from the bottom to top gradually decreases.When oil smoke flows to and lead from the bottom to top cigarette
When the following table face contact of plate 8, using Coanda effect, oil smoke is guided to horizontal direction shunting, then from the edge of smoke deflector 8
It imported into acceleration channels, then up flows into the chamber formed between the upper surface of smoke deflector 8 and exhaust fume collecting hood 1, finally
Entered in cabinet 2 by air inlet 11.
Since cross section is gradually reduced acceleration channels from bottom to top, after oil smoke enters acceleration channels, flow velocity can be continuous
Ground increases, and also increases accordingly to the suction of oil smoke, is separated inside cabinet 2 so that oil smoke can rapidly enter,
And then improve the oil suction smoke in the range hood unit time.
The lower surface of smoke deflector 8 can with all inclined-planes, can also a part be inclined-plane, another part is plane.Inclined-plane
It can be inclined plane or arcwall face.In the present embodiment, the lower surface of smoke deflector 8 includes the first inclined-plane 81, the second inclined-plane
At least one of 82 and third inclined-plane 83, wherein the first inclined-plane 81 is tilted upward to the left by centre, the left side with exhaust fume collecting hood 1
The first acceleration channels 84 are formed between side plate 13, the second inclined-plane 82 is tilted upward to the right by centre, the right side plate with exhaust fume collecting hood 1
Form the second acceleration channels 85 between 14, third inclined-plane 83 from centre to front side towards tilting, with the front side board 15 of exhaust fume collecting hood 1 it
Between formed third acceleration channels 86.Each inclined-plane constitutes the complete lower surface of smoke deflector 8.In addition, above-mentioned left plate 13, right side
The inner surface (one side towards in smoke collecting chamber 12) of plate 14 and front side board 15 can also be in gradually intilted oblique from the bottom to top
Face.
Realize that drainage and acceleration to oil smoke are made by the way that acceleration channels are arranged between exhaust fume collecting hood 1 and smoke deflector 8 as a result,
With to improve the smoking oil mass in the range hood unit time.
Four corners of 8 upper surface of smoke deflector are respectively arranged with connecting column 87, are connected to the outer of the air inlet 11 of exhaust fume collecting hood 1
Edge, so that smoke deflector 8 be connect with exhaust fume collecting hood 1, connecting column 87 can be fixed rod piece, or be driven by motor
Telescopic rod, telescopic rod can use the prior art, so that smoke deflector 8 can be according to the big minor adjustment height of oil smoke, with preferably
Smoke absorption effect is improved, while smoke deflector 8 can be raised to extreme higher position and close air inlet 11 when range hood is closed, and avoid
The oil vapor backstreaming of common flue.
In cabinet 2, rotary sieve 6 is provided with positioned at the lower section of blower fan system 4, and the setting of rotary sieve 6 is above-mentioned each
The lower section of silencing apparatus, the bottom in cabinet 2.That is, the inlet in above-mentioned air duct 25 is arranged in rotary sieve 6,
And air duct 25 is gradually reduced from the bottom to top, then is also accelerated without air duct 25 by the oil smoke of rotary sieve 6, at this point, oil smoke with
For the smallest flow velocity by rotary sieve 6, the time to contact with each other between the two is longer, and oil smoke can be made to fill with rotary sieve 6
Divide ground collision, to reach preferable filter effect.
Rotary sieve 6 needs maintained a certain distance with blower fan system 4, with ensure oil smoke with lower flow velocity (relative to
Oil smoke after air duct 25 accelerates, oil smoke flow velocity at this time are lower) by rotary sieve 6, to fully be filtered, revolve
Turn after strainer 6 rectifies oil smoke, so that oil smoke reaches blower fan system 4 by the flow path side of certain distance, to ensure
Oil smoke sufficiently achieves smooth；Between the two again cannot be apart from too far, otherwise rotary sieve 6 will exceed the negative pressuren zone of blower fan system 4
Greatest limit.
Rotary sieve 6 includes the Dropbox 61 for crossing filtering fume and the motor 62 for driving Dropbox 61 to rotate.Referring to figure
5, the slot 611 of the arc along central symmetry and array arrangement is offered on the surface of Dropbox 61, referring to Fig. 6, slot 611 is perforation net
At least two layers of 611 array of slot radially can be set on the surface of Dropbox 61 for the through slot of disk 61, since oil smoke is entering blower
Flue gas is influenced in the concentration distribution of circumference by the revolving speed of blower, the type of impeller and inlet and outlet angular dimensions before impeller, point
After layer design, the rigidity of Dropbox 61 is on the one hand improved, it on the other hand, can be after specific selected blower fan system according to practical cigarette
Gas concentration distribution character can more freely be distributed every layer of slot 611 to optimal width dimensions, without by other layer of slot 611
Influence, as much as possible promotion filter effect.
611 array of slot is arranged to centrosymmetric annular shape, and each slot 611 radially extends, bending direction and arc
It spends preferably consistent.By the way that the slot 611 radially extended and with certain radian is arranged, after grease and the contact of Dropbox 61,
It can compare and successfully flow from inside to outside, and realize that the grease of higher efficiency is centrifugated after obtaining bigger centrifugal force.
The top of Dropbox 61 is arranged in motor 62, and the output shaft 621 of motor 62 is inserted into the center of Dropbox 61 and company
Fixation is connect, thus motor 62 can drive Dropbox 61 to rotate.The arranged on left and right sides of motor 62 passes through electric machine support 622 and cabinet 2 respectively
Left side wall 21, right side wall 22 be connected and fixed, as a result, complete rotary sieve 6 installation.
The rear end of smoke deflector 8 offers oil dripping hole 88, is provided with lubricating cup 7 below the rear side of exhaust fume collecting hood 1, oil dripping hole 88 is located at
Thus the top of lubricating cup 7 can receive the upper table in smoke deflector 8 from the grease that cabinet 2, blower fan system 4 and rotary sieve 6 drip
Face, and dropped onto lubricating cup 7 from the oil dripping hole of the rear end of smoke deflector 8 88, to avoid pollution hearth or cooker.
Referring to figs. 7 and 8, in the present embodiment, blower fan system 4 include two can independent operation the first ternary blower system
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 Fig. 9 and Figure 10, 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 (14)
1. a kind of range hood including exhaust fume collecting hood (1), the cabinet (2) being arranged above exhaust fume collecting hood (1) and is arranged in cabinet (2)
Interior blower fan system (4) offers air inlet (11) on the exhaust fume collecting hood (1), is located to be provided with below air inlet (11) and leads cigarette
Plate (8), it is characterised in that: the blower fan system (4) includes the first ternary blower (41) and the second ternary blower being arranged in parallel
(42), the smoke deflector (8) lower surface at least part be in from centre to edge gradually upwards inclination, thus with exhaust fume collecting hood
(1) corresponding wall surface cooperates and limits the acceleration channels that cross section from the bottom to top gradually decreases.
2. range hood according to claim 1, it is characterised in that: the lower surface of the smoke deflector (8) includes first oblique
At least one of face (81), the second inclined-plane (82) and third inclined-plane (83), first inclined-plane (81) is by intermediate court to the left
It is formed the first acceleration channels (84) between upper inclination and the left plate (13) of exhaust fume collecting hood (1), second inclined-plane (82) is by centre
It is formed the second acceleration channels (85) between inclination and the right side plate (14) of exhaust fume collecting hood (1) upward to the right, the third inclined-plane
(83) third acceleration channels (86) are formed to front side towards between inclination and the front side board (15) of exhaust fume collecting hood (1) from centre.
3. range hood according to claim 2, it is characterised in that: the left plate (13), right side plate (14) and front side
The inner surface of plate (15) is also in gradually intilted inclined-plane from the bottom to top.
4. range hood according to claim 1, it is characterised in that: four corners of the upper surface of the smoke deflector (8)
It is respectively arranged with connecting column (87), the connecting column (87) is connected to the outer edge of the air inlet (11) of exhaust fume collecting hood (1), thus will
Smoke deflector (8) is connect with exhaust fume collecting hood (1).
5. range hood according to claim 4, it is characterised in that: the connecting column (87) is by motor-driven flexible
Bar.
6. range hood according to any one of claims 1 to 5, it is characterised in that: be formed with wind in the cabinet (2)
The inlet in road (25), bottom, air duct (25) in the cabinet (2) is provided with rotary sieve (6), the rotary sieve (6)
Including the Dropbox (61) for crossing filtering fume and the motor (62) for driving Dropbox (61) to rotate, the output of the motor (62)
Axis (621) is inserted into the center of Dropbox (61) and is connected and fixed, and the motor (62) passes through electric machine support (622) and cabinet (2)
It is connected and fixed.
7. range hood according to claim 6, it is characterised in that: offer on the surface of the Dropbox (61) along center
The slot (611) of arc that is symmetrical and being arranged in array, each slot (611) radially extending along Dropbox, and the slot (611) edge
The radial direction of Dropbox (61) is at least distributed with two layers.
8. range hood according to claim 1, it is characterised in that: the first ternary blower (41) includes the first ternary
Impeller (412) and the first air inlet (413), the second ternary blower (42) include the second 3 d impeller (422) and second into
Air port (423), on oil smoke flow path, second air inlet (413) is equal with the first air inlet (413) position, described
First air inlet (413) and the second air inlet (413) are set side by side and are respectively facing the arranged on left and right sides of cabinet (2).
9. range hood according to claim 8, it is characterised in that: the first ternary leaf of the first ternary blower (41)
Take turns (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.
10. range hood according to claim 8, it is characterised in that: the first ternary blower (41) further includes first
Spiral case (411), in the first spiral case (411), the second ternary blower (42) is also wrapped for the first 3 d impeller (412) setting
It includes the second spiral case (421), the second 3 d impeller (422) setting is in the second spiral case (421), first spiral case (411)
It is spaced, is arranged side by side with the second spiral case (421), first air inlet (413) is formed on the first spiral case (411), described
Second air inlet (423) is formed on the second spiral case (421), is formed with the first oil smoke channel in first spiral case (411)
(441), the top of first oil smoke channel (441) forms the first air outlet (414), is formed in second spiral case (421)
There is the second oil smoke channel (442), the top in second oil smoke channel (442) forms the second air outlet (424).
11. range hood according to claim 8, it is characterised in that: the first 3 d impeller (412) and the second 3 d impeller
(422) it is spaced, is arranged side by side, the first air inlet corresponding with the first 3 d impeller (412) in the same spiral case (44)
(413), the second air inlet (423) corresponding with the second 3 d impeller (422) is respectively formed at the opposite two sides of spiral case (44),
It is provided with mounting plate (45) between first 3 d impeller (412) and the second 3 d impeller (422), the mounting plate (45) is prolonged
The top of spiral case (44) is reached, so that two independent first oil smoke channels (441) and the second oil will be separated into spiral case (44)
The top of cigarette channel (442), first oil smoke channel (441) forms the first air outlet (414), second oil smoke channel
(442) top forms the second air outlet (424).
12. range hood described in 0 or 11 according to claim 1, it is characterised in that: further include being arranged in the first 3 d impeller
(412) driving motor (43) between the second 3 d impeller (422), the driving motor (43), which has, is respectively used to driving the
The double output shaft of one 3 d impeller (412) and the second 3 d impeller (422).
13. range hood described in 0 or 11 according to claim 1, it is characterised in that: at the air outlet of the blower fan system (4)
Be provided with outlet housing (5), the outlet housing (5) includes the cover (51) in hollow tube-shape, the cover (51) have it is opposite,
The first end (511) and second end (512) of opening, the bore of the first end (511) are greater than the bore of second end (512), institute
State and be provided with the first deflector (521) and the second deflector (522) in cover (51), each deflector from cover (51) first
It holds (511) to extend to second end (512), forms first between first deflector (521) and the inner sidewall of cover (51) and expand
It presses runner (531), forms the second diffusion runner (532), institute between second deflector (522) and the inner sidewall of cover (51)
The sectional area of the first diffusion runner (531) and the second diffusion runner (532) is stated respectively by the first end (511) of cover (51) to
Two ends (512) are gradually reduced, the first diffusion runner (531) at the first end (511) of cover (51) with the first ternary wind
The first air outlet (414) of machine (41) is corresponding, the second diffusion runner (532) at the first end (511) of cover (51) with
The second air outlet (424) of second ternary blower (42) is corresponding.
14. range hood according to claim 13, it is characterised in that: first deflector (521) and/or second lead
Sound-absorbing hole (54) are densely covered in flowing plate (522).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710924362.3A CN109595641B (en) | 2017-09-30 | 2017-09-30 | Fume exhauster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710924362.3A CN109595641B (en) | 2017-09-30 | 2017-09-30 | Fume exhauster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595641A true CN109595641A (en) | 2019-04-09 |
| CN109595641B CN109595641B (en) | 2024-01-16 |
Family
ID=65956774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710924362.3A Active CN109595641B (en) | 2017-09-30 | 2017-09-30 | Fume exhauster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109595641B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186083A (en) * | 2019-05-09 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of energy-saving control method of fume purifier of fume and the device |
| CN113237111A (en) * | 2021-05-31 | 2021-08-10 | 宁波方太厨具有限公司 | Range hood and control method thereof |
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| CN203052780U (en) * | 2012-12-27 | 2013-07-10 | 谈启明 | Range hood |
| CN103307648A (en) * | 2013-02-07 | 2013-09-18 | 时取 | Lampblack purifier |
| CN104165399A (en) * | 2014-07-25 | 2014-11-26 | 宁波方太厨具有限公司 | Rectification acceleration disc structure of range hood |
| CN204987150U (en) * | 2015-07-29 | 2016-01-20 | 晋江市东亨工业设计有限公司 | Two axial fan's in area smoke ventilator |
| CN205402856U (en) * | 2016-03-08 | 2016-07-27 | 广东美的厨房电器制造有限公司 | Range hood |
| CN207230685U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of range hood |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203052780U (en) * | 2012-12-27 | 2013-07-10 | 谈启明 | Range hood |
| CN103307648A (en) * | 2013-02-07 | 2013-09-18 | 时取 | Lampblack purifier |
| CN104165399A (en) * | 2014-07-25 | 2014-11-26 | 宁波方太厨具有限公司 | Rectification acceleration disc structure of range hood |
| CN204987150U (en) * | 2015-07-29 | 2016-01-20 | 晋江市东亨工业设计有限公司 | Two axial fan's in area smoke ventilator |
| CN205402856U (en) * | 2016-03-08 | 2016-07-27 | 广东美的厨房电器制造有限公司 | Range hood |
| CN207230685U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of range hood |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186083A (en) * | 2019-05-09 | 2019-08-30 | 宁波方太厨具有限公司 | A kind of energy-saving control method of fume purifier of fume and the device |
| CN113237111A (en) * | 2021-05-31 | 2021-08-10 | 宁波方太厨具有限公司 | Range hood and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN109595641B (en) | 2024-01-16 |
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