CN109595631A - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
- Publication number
- CN109595631A CN109595631A CN201710923594.7A CN201710923594A CN109595631A CN 109595631 A CN109595631 A CN 109595631A CN 201710923594 A CN201710923594 A CN 201710923594A CN 109595631 A CN109595631 A CN 109595631A
- Authority
- CN
- China
- Prior art keywords
- air inlet
- blower
- exhaust fume
- fume collecting
- strainer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000779 smoke Substances 0.000 claims abstract description 101
- 239000003517 fume Substances 0.000 claims abstract description 36
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 9
- 230000001133 acceleration Effects 0.000 claims description 20
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 17
- 230000002093 peripheral effect Effects 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 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 the exhaust fume collecting hood, air duct is formed in the cabinet, it is characterized by: the blower fan system includes the first ternary blower and the second ternary blower being arranged in series, the inlet of bottom, air duct in the cabinet is provided with strainer, the strainer includes the strainer ontology in up-small and down-big back taper, is densely covered with mesh on the strainer ontology.By the strainer that the back taper being recessed upwards is arranged, it can shorten at a distance from blower, close to strong negative pressuren zone, when so that oil smoke entering, directly by strong suction function, to substantially increase air draught effect, flow field upper air inlet is smooth, the suction for not influencing range hood avoids the occurrence of and runs the phenomenon that oil smoke is more, leakage is inhaled；Strainer low, intermediate height in following peripheral, is in concentrated when such oil smoke absorbs, can be improved the collection efficiency of greasy dirt；It is deep to collect cigarette, oil smoke is absorbed with not stopping deeply.
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, the cabinet on the exhaust fume collecting hood
Inside it is formed with air duct, it is characterised in that: the blower fan system includes the first ternary blower and the second ternary blower being arranged in series,
The inlet of bottom, air duct in the cabinet is provided with strainer, and the strainer includes the strainer in up-small and down-big back taper
Ontology is densely covered with mesh on the strainer ontology.
For the grease convenient for collecting cabinet, blower and strainer itself, the edge of the strainer ontology has been extended outward to form
Cricoid oil trap, the outer edge of the oil trap are extended to outside the bottom end of cabinet and are folded upward at.
To accelerate oil smoke flow velocity, raising fume-exhausting efficiency is provided with smoke deflector below air inlet, the smoke deflector
Lower surface at least part be in from centre to edge gradually upwards inclination, thus the cooperation of corresponding to exhaust fume collecting hood wall surface and limit
The acceleration channels that cross section gradually decreases from the bottom to top.
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 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.
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
The downstream that the second air inlet is located at the first air inlet, first air inlet and the second air inlet are stated towards identical direction.
To enable the abundant diffusion of exit flow of first order blower, so that dynamic pressure switchs to static pressure, into second level wind
The diameter of machine, the first 3 d impeller and the second 3 d impeller is identical, the distance between first air inlet and the second air inlet
With the ratio 0.2~1 of the diameter of the first 3 d impeller.
According to an aspect of the present invention, first air inlet and the second air inlet are downward in horizontal arrangement, institute
1~2 times that the distance between the first air inlet and tunnel inlet of the first ternary blower is the first 3 d impeller diameter is stated, it is described
The center of first 3 d impeller is greater than the diameter of the first 3 d impeller at a distance from tunnel inlet.
According to another aspect of the present invention, first air inlet and the second air inlet are obliquely downward in oblique
It sets, the vertical range between the first air inlet center of the first ternary blower and the entrance in air duct is the first 3 d impeller
0.5~2 times of diameter.
To promote the flow field of blower and reducing noise, the first air outlet of the first ternary blower and the second ternary blower
The second air inlet between pass through guide duct connect.
Compared with the prior art, the advantages of the present invention are as follows: the strainer by the way that the back taper being recessed upwards is arranged can contract
It is short at a distance from blower, close to strong negative pressuren zone, when so that oil smoke entering, directly by strong suction function, to substantially increase suction
Wind effect；There is the smoke deflector of inclined lower surface by being arranged, collectively form oil smoke acceleration channels with exhaust fume collecting hood, oil smoke can be increased
The amount inside range hood is entered in unit time, promotes smoke absorption effect；By the strainer of back taper that is recessed upwards and
Smoke deflector with inclined lower surface can produce the whirlpool of separation when oil smoke ascending air passes through smoke deflector, can slow down by
The fluid velocity caused by sudden expansion declines suddenly, reduces the negative pressure and loss of corner, under convex smoke deflector and convex oil
Net forms small, the broad in the middle runner in a periphery, so that collection cigarette is deeper, increases the volume of oil smoke cage cigarette, collects oil smoke
Gas also increases the contact area of oil smoke and oil network, improves filter effect, promotes grease separating degree, is also beneficial to sufficiently
The strong suction function of import for playing ternary blower, reduces inner air venturi effect, is made an uproar by reducing turbulent flow to reduce air-flow
Sound；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 of generation
Gradient is big, and smoking efficiency can be made significantly to be promoted, and passes through the ternary blower of small size, and two ternary blowers can be made to go here and there
Still there is lesser size, so that range hood haves no need to change existing size, installation will not be by under the combination of connection
The limitation high to floor layer；Since negative pressure is larger at ternary fan inlet, the middle section of traditional oil network arrangement is had
Lubricating cup, can interfere formation and the smoke absorption effect of negative pressure, and reversion oil network does not need that lubricating cup is arranged in middle section, it is only necessary in week
Border region connects oil, is more conducive to playing the strong suction function of ternary blower, and inverted arrangement is conducive to oil smoke acceleration, oil suction
Cigarette effect is good.
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 (hiding outlet housing) of the range hood of Fig. 1；
Fig. 3 is the side sectional view of the range hood of Fig. 1；
Fig. 4 is the schematic diagram of the smoke deflector of the range hood of Fig. 1；
Fig. 5 is the schematic diagram of the rotary sieve of range hood of the invention；
Fig. 6 is the schematic diagram (hiding front side wall) of second embodiment of range hood of the invention；
Fig. 7 is the cross-sectional view of second embodiment of range hood of the invention；
Fig. 8 is the schematic diagram (hiding front side wall) of range hood third embodiment of the invention；
Fig. 9 is the cross-sectional view of range hood third embodiment 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, strainer 6 is provided with positioned at the lower section of blower fan system 4, and strainer 6 is arranged in above-mentioned each silencing apparatus
Lower section, the bottom in cabinet 2.That is, the inlet in above-mentioned air duct 25 is arranged in strainer 6, in 25 pairs of air duct oil
Before cigarette accelerates, strainer 6 can come into full contact with oil smoke, realize preferable filter effect.Referring to Fig. 5, strainer 6 include present it is small under
The strainer ontology 61 of big back taper is densely covered with mesh 62 on strainer ontology 61, and the edge of strainer ontology 61 extends outward to form
There is cricoid oil trap 63, the outer edge of oil trap 63 is folded upward at and extends to outside the bottom end of cabinet 2.
By the way that the strainer 6 for the back taper being recessed upwards is arranged, can shorten at a distance from blower fan system 4, close to strong negative pressure
Area, when so that oil smoke entering, directly by strong suction function, to substantially increase air draught effect.Flow field upper air inlet is smooth, not shadow
The suction for ringing range hood avoids the occurrence of and runs the phenomenon that oil smoke is more, leakage is inhaled；Strainer 6 low, intermediate height, such oil smoke in following peripheral
It is in concentrated when absorption, can be improved the collection efficiency of greasy dirt；In addition, collection cigarette is deep, oil smoke is absorbed with not stopping deeply, and by
The following peripheral of strainer 6 carries out oil-collecting, and convenient for the flowing of oil-collecting, more convenient pair of oil liquid is collected, and avoids the drippage of oil droplet.
The first oil dripping hole 64 (being located above smoke deflector 8) is offered positioned at 63 part of oil trap of 61 rear side of strainer ontology,
The rear end of smoke deflector 8 offers the second oil dripping hole 88, is provided with lubricating cup 7 below the rear side of exhaust fume collecting hood 1, the second oil dripping hole 88 is located at
Thus the top of lubricating cup 5 can receive the oil trap 63 in strainer 6 from the grease of 6 themselves capture of cabinet 2, blower fan system 4 and strainer
It is interior, and the upper surface of smoke deflector 8 is dropped onto from the first oil dripping hole 64, hereafter dripped from the second oil dripping hole 88 of the rear end of smoke deflector 8
It falls in lubricating cup 7, to avoid pollution hearth or cooker.
Be provided with blower fan system 4 in cabinet 2, blower fan system 4 include two can independent operation 41 He of the first ternary blower
Second ternary blower 42, two ternary fans in series settings.It can be substantially compared to centrifugal blower by using 3 d impeller
Increase flow efficiency, improves air quantity.
The first 3 d impeller 412 that first ternary blower 41 spiral case 411 and be arranged in the first spiral case 411 including first,
The second 3 d impeller 422 that second ternary blower 42 spiral case 421 and be arranged in the second spiral case 421 including second.First spiral case
It is formed with the first air inlet 413 on 411, the second air inlet 423, the top shape of the first spiral case 411 are formed on the second spiral case 421
At the first air outlet 414, the top of the second spiral case 421 forms the second air outlet 424.
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
Structure disclosed in 201620102790.9 patent, two 3 d impellers are respectively independent, are respectively provided with independent first and drive
Dynamic motor 431 and the second driving motor 432.
First ternary blower 41 (as first order blower) and the second ternary blower 42 (as second level blower) are mutual respectively
It is mutually independent, and be in horizontal arrangement, i.e., the air inlet of two ternary blowers is downward.Second ternary blower 42 is located at first
The top of ternary blower 41, two ternary blower arranged for interval.When oil smoke enters from exhaust fume collecting hood 1, the first ternary wind is passed sequentially through
Machine 41 (upstream of oil smoke flow path) and the second ternary blower 42 (downstream of oil smoke flow path).First ternary blower 41
It is in the first open, i.e., above-mentioned air outlet between first air outlet 414 and the second air inlet 423 of the second ternary blower 42
414 and second are not connected by guide duct between air inlet 423, and oil smoke is directly discharged in cabinet 2 by the first air outlet 414
In air duct 25, the second air inlet 423 sucks oil smoke out of air duct 25 in cabinet 2.
In the present embodiment, the first ternary blower 41 and the second ternary blower 42 are arranged in correspondence with each other, the first ternary blower
41 the first air inlet 413 and the second air inlet 423 of the second ternary blower 42, which can correspond to, (coaxially or same to hang down
Histogram is upward), the second air outlet 424 of the second air outlet 414 of the first ternary blower 41 and the second ternary blower 42 can also be with
Corresponding (coaxially or in the same vertical direction).It is kept centainly between first air inlet 413 and the second air inlet 423
Distance, distance between the two and the diameter of the first 3 d impeller 412 or the second 3 d impeller 422 (two 3 d impellers are identical)
Ratio 0.2~1.Suitable spacing is kept between two-stage blower, enables the abundant diffusion of the exit flow of first order blower,
So that dynamic pressure switchs to static pressure, into second level blower；But can not from it is too far, otherwise lose the concatenated meaning of two fans.
First air inlet 413 of the first ternary blower 41 is maintained a certain distance with 25 entrance of air duct, between the two away from
From 1~2 times for 412 diameter of the first 3 d impeller, the center of the first 3 d impeller 412 must be big at a distance from 25 entrance of air duct
It can just be played a role in the rotary sieve 6 of the diameter of the first 3 d impeller 412, such 25 inlet of air duct, but 2 can not be greater than
Times diameter, otherwise apart from negative pressure region apart from too far.
The mode of this arranged in series realizes oil smoke and directly inhales in line, improves static pressure, promote range hood effect；Two
Grade blower fan filtering, increases filter effect, improves grease separating degree；Two-stage fans in series, every level-one rotation speed of fan are just not required to
It is so high, noise can be effectively reduced.
Embodiment two
Referring to Fig. 6 and Fig. 7, in the present embodiment, with above-described embodiment three the difference is that, the first ternary blower 41
(as first order blower) and second ternary blower 42 (as second level blower) dislocation arrangement, i.e. the first spiral case 411 and second
Spiral case 412 is in reversely, and the first air inlet 413 of the first ternary blower 41 is close to right side, the second air inlet of the second ternary blower 42
Mouth 423 is close to left side, and the second air outlet 414 of the first ternary blower 41 is close to left side, the second outlet air of the second ternary blower 42
Mouthfuls 424 close to right side, at this time the second air inlet of the first air outlet 414 of the first ternary blower 41 and the second ternary blower 42
423 corresponding in vertical direction or close correspondences.The distance between first air inlet 413 and the second air inlet 423 are Vertical Square
Upward distance.
Embodiment three
Referring to Fig. 8 and Fig. 9, in the present embodiment, with above-described embodiment three the difference is that, the first ternary blower 41
Obliquely upper and lower arranged for interval, i.e. the first air inlet 413 and the level of the first ternary blower 41 are distinguished with the second ternary blower 42
Inclinedly downward, the second air inlet 423 of the second ternary blower 42 and horizontal direction are inclinedly downward in direction.
Pass through between first air outlet 414 of the first ternary blower 41 and the second air inlet 423 of the second ternary blower 42
Guide duct 46 connects.Vertical range between 413 center of the first air inlet of first ternary blower 41 and the entrance in air duct 25 is
0.5~2 times of the diameter of first 3 d impeller 412.
The blower whole height of this tilting series system, composition is lower, and fan outlet static pressure is larger, is conducive to overcome
The high-rise resistance of ducting, further, since the small size of ternary blower, Wind Volume, solve the problems, such as that floor layer height is limited.
Claims (11)
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 formed with air duct (25) in the cabinet (2),
It is characterized by: the blower fan system (4) includes the first ternary blower (41) and the second ternary blower (42) being arranged in series, institute
State the bottom in cabinet (2), the inlet of air duct (25) is provided with strainer (6), the strainer (6) include in it is up-small and down-big fall
The strainer ontology (61) of taper is densely covered with mesh (62) on the strainer ontology (61).
2. range hood according to claim 1, it is characterised in that: the edge of the strainer ontology (61) extends outwardly shape
At having cricoid oil trap (63), the outer edge of the oil trap (63) is extended to outside the bottom end of cabinet (2) and is bent up
Folding.
3. range hood according to claim 1 or 2, it is characterised in that: be located to be provided with below air inlet (11) and lead cigarette
Plate (8), 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.
4. range hood according to claim 3, 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.
5. range hood according to claim 4, 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).
6. range hood according to claim 5, it is characterised in that: the connecting column (87) is by motor-driven flexible
Bar.
7. 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 (423) is located at the downstream of the first air inlet (413), described
First air inlet (413) and the second air inlet (423) are towards identical direction.
8. range hood according to claim 7, it is characterised in that: the first 3 d impeller (412) and the second 3 d impeller
(422) diameter is identical, the distance between first air inlet (413) and the second air inlet (423) and the first 3 d impeller
(412) ratio 0.2~1 of diameter.
9. range hood according to claim 7, it is characterised in that: first air inlet (413) and the second air inlet
(413) be downward in horizontal arrangement, the first air inlet (413) and air duct (25) entrance of the first ternary blower (41) it
Between distance be 1~2 times of the first 3 d impeller (412) diameter, the center and air duct (25) of first 3 d impeller (412)
The distance of entrance is greater than the diameter of the first 3 d impeller (412).
10. range hood according to claim 7, it is characterised in that: first air inlet (413) and the second air inlet
It (423) is obliquely downward in tilting, the first air inlet (413) center and air duct (25) of the first ternary blower (41)
Entrance between vertical range be 0.5~2 times of diameter of the first 3 d impeller (412).
11. range hood according to claim 10, it is characterised in that: the first outlet air of the first ternary blower (41)
It is connected between mouth (414) and the second air inlet (423) of the second ternary blower (42) by guide duct (46).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710923594.7A CN109595631A (en) | 2017-09-30 | 2017-09-30 | A kind of range hood |
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| CN201710923594.7A CN109595631A (en) | 2017-09-30 | 2017-09-30 | A kind of range hood |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186095A (en) * | 2019-06-26 | 2019-08-30 | 杭州老板电器股份有限公司 | A kind of dual injection helps the range hood of suction |
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2017
- 2017-09-30 CN CN201710923594.7A patent/CN109595631A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186095A (en) * | 2019-06-26 | 2019-08-30 | 杭州老板电器股份有限公司 | A kind of dual injection helps the range hood of suction |
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