CN207214200U - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
- Publication number
- CN207214200U CN207214200U CN201721290264.0U CN201721290264U CN207214200U CN 207214200 U CN207214200 U CN 207214200U CN 201721290264 U CN201721290264 U CN 201721290264U CN 207214200 U CN207214200 U CN 207214200U
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- China
- Prior art keywords
- blower fan
- air inlet
- range hood
- fume collecting
- exhaust fume
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- 239000000779 smoke Substances 0.000 claims abstract description 100
- 239000003517 fume Substances 0.000 claims abstract description 38
- 230000001133 acceleration Effects 0.000 claims abstract description 22
- 230000007423 decrease Effects 0.000 claims abstract description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 14
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000004519 grease Substances 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
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 239000006233 lamp black Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 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
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Ventilation (AREA)
Abstract
The utility model discloses a kind of range hood, including exhaust fume collecting hood, the cabinet being arranged on 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 fan and the second ternary blower fan that are arranged in series, lower surface at least a portion of smoke deflector in be gradually inclined upwardly from centre to edge, thus wall corresponding to exhaust fume collecting hood coordinates and limits the acceleration channels that cross section from the bottom to top gradually decreases.It can increase the amount entered in the oil smoke unit interval inside range hood by acceleration channels, lift smoke absorption effect, pass through the rotary sieve set at tunnel inlet, so that oil smoke with without air channel accelerate before rotary sieve is passed through with relatively low flow velocity, the time to contact with each other between the two is longer, and oil smoke can be caused fully to be collided with rotary sieve.
Description
Technical field
Machine for kitchen use is the utility model is related to, especially a kind of range hood.
Background technology
Range hood turns into one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top
Suction and near-absorption type, the range hood of top suction type utilize the principle that hot gas rises, and suction is caused 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, it is and in an increasingly wide range of applications.
Existing range hood, screen pack can be installed for the purpose of caused oil smoke, flue dust etc. in culinary art to collect.
A kind of smoke exhaust ventilator as disclosed in the Chinese patent of Application No. 200780027956.9, has duct-ventilated hood, located at logical
Exhaust fan in air channel, the screen pack in ventilating duct and before exhaust fan, drive division are connected on screen pack, hood
Interior air entry is nearby provided with flat cowling panel；It is and for example a kind of disclosed in the Chinese patent of Application No. 201620110299.0
Flat board smoke exhaust ventilator, including smoke collecting chamber, be arranged on above smoke collecting chamber air channel, be arranged in air channel blower fan, filtering oil smoke dress
Put, lampblack filter includes including the support being connected with fan shaft with the coaxial mounted filter screen disk of blower fan, filter screen disk
Frame and the screen pack being fixed on support frame.
Above-mentioned range hood, by installing the screen pack of rotation, expeditiously oil smoke can be carried out at purification filtering
Reason and decomposition.However, in the range hood of top suction type, the arrangement of above-mentioned blower fan, cause oil smoke air-flow can not realize directly
Inhale in line, therefore increase windage, reduce smoking efficiency.In addition, the cowling panel for being arranged on the air inlet of range hood is in
Flat condition, drainage can not be played a part of to oil smoke, accelerated, it is difficult to effectively lift smoke absorption effect, and cowling panel is with respect to position
Fixation is put, negative pressuren zone can not be adjusted according to the service condition of the kitchen range top.
A kind of and for example rotation net purifier of smoke exhaust ventilator disclosed in the Chinese patent of Application No. 98202073.2, is taking out
Swing frame is fixed with the motor shaft of lampblack absorber 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, is rotated by motor driven wind wheel, swing frame, rotation net, purse seine, the rotation net of rotation carries out slag, oil, gas to oil smoke
Three separates.Although this take out smoke extractor, it can realize and directly inhale in line, but similar with above-mentioned vertical or tilting blower fan, rotation
The air inlet of centrifugal blower can only be arranged on by turning filter screen, motor or single motor-driven rotation by centrifugal blower, thus
Not only result in larger 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 makes the effect of airflow smooth not embody farthest.
Utility model content
Technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing a kind of improve
The range hood of fume-exhausting efficiency and oil separation effect.
Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of range hood, including exhaust fume collecting hood,
The blower fan system for being arranged on cabinet above exhaust fume collecting hood and being arranged in cabinet, air inlet is offered on the exhaust fume collecting hood, is located at
Smoke deflector is provided with below air inlet, it is characterised in that：The blower fan system includes the first ternary blower fan for being arranged in series and the
Two ternary blower fans, lower surface at least a portion of the smoke deflector are in gradually to be inclined upwardly from centre to edge, thus with collecting cigarette
The corresponding wall of cover coordinates and limits the acceleration channels that cross section from the bottom to top gradually decreases.
Preferably, effectively to be accelerated to the oil smoke on smoke deflector periphery, the lower surface of the smoke deflector includes first
At least one in inclined-plane, the second inclined-plane and the 3rd 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 it is middle tilt upward to the right, the right side with exhaust fume collecting hood
The second acceleration channels are formed between plate, the 3rd inclined-plane is from centre to front side towards between inclination and the front side board of exhaust fume collecting hood
Form the 3rd acceleration channels.
Preferably, it is the acceleration of further raising acceleration channels, the interior table of the left plate, right plate and front side board
Face is also in gradual intilted inclined-plane from the bottom to top.
Further, it is respectively arranged with company for ease of the installation of smoke deflector, four corners of the upper surface of the smoke deflector
Post is connect, the connecting pole is connected to the outward flange of the air inlet of exhaust fume collecting hood, so as to which smoke deflector be connected with exhaust fume collecting hood.
To allow smoke deflector according to the big minor adjustment of oil smoke height, 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 pole is by motor-driven expansion link.
Preferably, for ease of filtering, the cabinet is interior formed with air channel, and the cabinet is interior, the porch in air channel is provided with
Rotary sieve, the rotary sieve include being used for the Dropbox of filtering fume and the motor for driving Dropbox to rotate, the motor
Output shaft be inserted into the center of Dropbox and be connected, the motor is connected by electric machine support and cabinet.
To lift the rigidity of Dropbox, filter effect is lifted as much as possible, is offered on the surface of the Dropbox along center pair
Claim and be in array arrangement arc groove, each groove is radially extended along Dropbox, and radial direction of the groove along Dropbox is at least divided
It is furnished with two layers.
On the basis of Cabinet Size is not changed, to increase air quantity, the first ternary blower fan includes the first 3 d impeller
With the first air inlet, the second ternary blower fan includes the second 3 d impeller and the second air inlet, on oil smoke flow path, institute
State the downstream that the second air inlet is located at the first air inlet, first air inlet and the second air inlet are towards identical direction.
To enable the abundant diffusion of exit flow of first order blower fan so that dynamic pressure switchs to static pressure, into second level wind
The diameter of machine, the first 3 d impeller and the second 3 d impeller is identical, the distance between described first air inlet and the second air inlet
With the ratio 0.2~1 of the diameter of the first 3 d impeller.
According to one side of the present utility model, it is in horizontal cloth down that first air inlet and the second air inlet, which are,
Put, the distance between first air inlet and tunnel inlet of the first ternary blower fan are the 1~2 of the first 3 d impeller diameter
Again, the center of first 3 d impeller and the distance of tunnel inlet are more than the diameter of the first 3 d impeller.
According to other side of the present utility model, first air inlet is to be in down obliquely with the second air inlet
Tilting, the vertical range between the first air inlet center of the first ternary blower fan and the entrance in air channel is the first 3 d impeller
0.5~2 times of diameter.
To lift the flow field of blower fan and reducing noise, the first air outlet of the first ternary blower fan and the second ternary blower fan
The second air inlet between connected by guide duct.
Compared with prior art, the utility model has the advantage of：By setting the smoke deflector with inclined lower surface, with
Exhaust fume collecting hood collectively forms oil smoke acceleration channels, can increase the amount entered in the oil smoke unit interval inside range hood, and lifting is inhaled
Oil smoke effect；By setting rotary sieve at the tunnel inlet in cabinet, oil smoke can be caused with before accelerating without air channel
With relatively low flow velocity by rotary sieve, the time to contact with each other between the two is longer, oil smoke can be filled with rotary sieve
Divide ground collision, while rectified action is played to the oil smoke of process, and rectification is completed by longer air channel, it is preferable so as to reach
Filter effect；By using two ternary blower fans, blower fan structure is compact, and size is relatively small, and fan efficiency and blast are high, produce
Suction gradient it is big, smoking efficiency can significantly be lifted, and by the ternary blower fan of small size, can be so that two ternary wind
Machine still has less size under the combination of series connection so that range hood need not change existing size, installation
It will not be limited by floor floor height.
Brief description of the drawings
Fig. 1 is the schematic diagram of range hood one embodiment of the present utility model；
Fig. 2 is the front section view (hiding outlet housing) of Fig. 1 range hood；
Fig. 3 is the side sectional view of Fig. 1 range hood；
Fig. 4 is that the cabinet of Fig. 1 range hood hides the schematic diagram of front side wall；
Fig. 5 is the schematic diagram of the smoke deflector of Fig. 1 range hood；
Fig. 6 is the schematic diagram of the rotary sieve of range hood of the present utility model；
Fig. 7 is the schematic diagram of second embodiment of range hood of the present utility model；
Fig. 8 is the sectional view of second embodiment of range hood of the present utility model；
Fig. 9 is the schematic diagram of 3rd embodiment of range hood of the present utility model；
Figure 10 is the sectional view of 3rd embodiment of range hood of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one
Referring to Fig. 1~Fig. 4, a kind of range hood, including exhaust fume collecting hood 1, the cabinet 2 for being arranged on the top of 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, thus, the blower fan system 4 in cabinet 2 can aspirate oil smoke
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
Into the air channel 25 of oil smoke air-flow, it is preferred that air channel 25 is gradually reduced from the bottom to top.
In the present embodiment, blower fan system 4 is ternary blower fan, and ternary blower fan can use prior art, such as Application No.
201310418009.X Chinese patent disclosed in.Blower fan system 4 can be single ternary blower fan, two ternarys in parallel
Blower fan or the ternary blower fans of two series connection, because ternary blower fan has, compact-sized, size is relatively small, fan efficiency and blast
The characteristics of high, can caused by suction gradient it is big, can so that smoking efficiency significantly lifted.The concrete structure of blower fan system 4 will
It is described in detail below.The top of cabinet 2 is provided with the outlet housing 5 being connected with the air outlet of blower fan system 4, so as to pass through outlet housing
5, oil smoke can be drained into common flue.
It is located at the top of smoke collecting chamber 12, smoke collecting chamber 12 formed with concave up smoke collecting chamber 12, air inlet 11 in exhaust fume collecting hood 1
Interior, relative with air inlet 11 position is provided with smoke deflector 8, and first passing through smoke deflector 8 before oil smoke enters range hood is carried out
Filtration treatment is condensed, carries out first time oil smoke separation.With reference to Fig. 5, the cross section of the shape of smoke deflector 8, size and smoke collecting chamber 12
Essentially coincide.
Lower surface at least a portion of smoke deflector 8 in being gradually inclined upwardly from centre to edge, thus with the phase of exhaust fume collecting hood 1
Wall is answered to coordinate and limit the acceleration channels that cross section from the bottom to top gradually decreases.When oil smoke flows to and led from the bottom to top cigarette
During the lower surface 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 between the upper surface of smoke deflector 8 and exhaust fume collecting hood 1 in the chamber formed, finally
Entered by air inlet 11 in cabinet 2.
Due to acceleration channels, cross section is gradually reduced from bottom to top, and therefore, after oil smoke enters acceleration channels, flow velocity can be continuous
Ground increases, and the suction of oil smoke is also accordingly increased, separated so that oil smoke can rapidly enter inside cabinet 2,
And then improve the oil suction smoke in the range hood unit interval.
The lower surface of smoke deflector 8 can with all inclined-planes, can also a part be inclined-plane, another part be plane.Inclined-plane
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
82 and the 3rd at least one in 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 plate with exhaust fume collecting hood 1
Form the second acceleration channels 85 between 14, the 3rd 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 the 3rd acceleration channels 86.Each inclined-plane forms the complete lower surface of smoke deflector 8.In addition, above-mentioned left plate 13, right side
The inner surface of plate 14 and front side board 15 (one side towards in smoke collecting chamber 12) can also be in gradually intilted oblique from the bottom to top
Face.
Thus, by setting acceleration channels to realize drainage and acceleration work to oil smoke between exhaust fume collecting hood 1 and smoke deflector 8
With so as to improve the smoking oil mass in the range hood unit interval.
Four corners of the upper surface of smoke deflector 8 are respectively arranged with connecting pole 87, be connected to exhaust fume collecting hood 1 air inlet 11 it is outer
Edge, so as to which smoke deflector 8 be connected with exhaust fume collecting hood 1, connecting pole 87 can be fixed rod member, or by motor-driven
Expansion link, expansion link can use prior art, so as to which 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, be provided with rotary sieve 6 positioned at the lower section of blower fan system 4, and rotary sieve 6 be arranged on it is above-mentioned each
The lower section of silencing apparatus, the bottom in cabinet 2.That is, rotary sieve 6 is arranged on the porch in above-mentioned air channel 25,
And air channel 25 is gradually reduced from the bottom to top, then also accelerated by the oil smoke of rotary sieve 6 without air channel 25, now, oil smoke with
For minimum flow velocity by rotary sieve 6, the time to contact with each other between the two is longer, and oil smoke can be caused to be filled with rotary sieve 6
Divide ground collision, so as to reach preferable filter effect.
Rotary sieve 6 needs to maintain a certain distance with blower fan system 4, with ensure oil smoke with relatively low flow velocity (relative to
Oil smoke after air channel 25 accelerates, oil smoke flow velocity now are relatively low) pass through rotary sieve 6, so as to fully be filtered, rotation
After turning filter screen 6 to oil smoke progress rectification 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 can not be away from too far away, otherwise rotary sieve 6 is by beyond the negative pressuren zone of blower fan system 4
Greatest limit.
Rotary sieve 6 includes being used for the Dropbox 61 of filtering fume and the motor 62 for driving Dropbox 61 to rotate.Referring to figure
5, the groove 611 of the arc along Central Symmetry and array arrangement is offered on the surface of Dropbox 61, referring to Fig. 6, groove 611 is insertion net
The groove of disk 61, at least two layers of the array of groove 611 can be radially set, because oil smoke is into blower fan on the surface of Dropbox 61
Flue gas is influenceed in the concentration distribution of circumference by the rotating speed of blower fan, the species 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, on the other hand, can be after specific selected blower fan system according to actual cigarette
Gas concentration distribution character, it can more freely be distributed every layer of groove 611 and arrive optimal width dimensions, without by other layer of groove 611
Influence, lift filter effect as much as possible.
The array of groove 611 is arranged to centrosymmetric annular shape, and each groove 611 radially extends, its bending direction and arc
Degree is preferably consistent.By setting the groove 611 radially extended and with certain radian, after grease contacts with Dropbox 61,
It can compare and successfully flow from inside to outside, and realize that the grease of higher efficiency centrifuges after obtaining bigger centrifugal force.
Motor 62 is arranged on the top of Dropbox 61, 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, thus, 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
The top of lubricating cup 7, the upper table in smoke deflector 8 thus can be received from the grease of cabinet 2, blower fan system 4 and rotary sieve 6 drippage
Face, and dropped onto from the oil dripping hole 88 of the rear end of smoke deflector 8 in lubricating cup 7, to avoid polluting the kitchen range top or cooker.
Be provided with blower fan system 4 in cabinet 2, blower fan system 4 include two can independent operation the He of the first ternary blower fan 41
Second ternary blower fan 42, two ternary fans in series are set., can be significantly compared to centrifugal blower by using 3 d impeller
Increase flow efficiency, improve air quantity.
First ternary blower fan 41 includes the first spiral case 411 and the first 3 d impeller 412 being arranged in the first spiral case 411,
Second ternary blower fan 42 includes the second spiral case 421 and the second 3 d impeller 422 being arranged in the second spiral case 421.First spiral case
Formed with the first air inlet 413 on 411, formed with the second air inlet 423, the top shape of the first spiral case 411 on the second spiral case 421
Into the first air outlet 414, the top of the second spiral case 421 forms the second air outlet 424.
First 3 d impeller 412 and the second 3 d impeller 422 can use prior art, such as the Application No. of the applicant
Structure disclosed in 201620102790.9 patent, two 3 d impellers are each independent, driven respectively with independent first
The dynamic motor 432 of motor 431 and second.
First ternary blower fan 41 (as first order blower fan) and the second ternary blower fan 42 (as second level blower fan) are mutual respectively
It is mutually independent, and be in horizontal arrangement, i.e., the air inlet of two ternary blower fans is down.Second ternary blower fan 42 is located at first
The top of ternary blower fan 41, two ternary blower fan arranged for interval.Oil smoke enters fashionable from exhaust fume collecting hood 1, passes sequentially through the first ternary wind
Machine 41 (upstream of oil smoke flow path) and the second ternary blower fan 42 (downstream of oil smoke flow path).First ternary blower fan 41
It is in the first open, i.e., above-mentioned air outlet between first air outlet 414 and the second air inlet 423 of the second ternary blower fan 42
414 and second are not connected by guide duct between air inlet 423, and oil smoke is directly discharged in cabinet 2 by the first air outlet 414
In air channel 25, oil smoke is sucked in air channel 25 of second air inlet 423 out of cabinet 2.
In the present embodiment, the first ternary blower fan 41 and the second ternary blower fan 42 are arranged in correspondence with each other, the first ternary blower fan
41 the first air inlet 413 and the second air inlet 423 of the second ternary blower fan 42, which can correspond to, (coaxially or same to hang down
Nogata is upward), the second air outlet 414 of the first ternary blower fan 41 and the second air outlet 424 of the second ternary blower fan 42 can also
Corresponding (coaxially or in same vertical direction).Kept necessarily between first air inlet 413 and the second air inlet 423
Distance, distance between the two and the first 3 d impeller 412 or the diameter of the second 3 d impeller 422 (two 3 d impellers are identical)
Ratio 0.2~1.Suitable spacing is kept between two-stage blower fan so that the exit flow of first order blower fan can abundant diffusion,
So that dynamic pressure switchs to static pressure, into second level blower fan；But can not from it is too remote, otherwise lose the meaning of two fans series connection.
First air inlet 413 of the first ternary blower fan 41 maintains a certain distance with the entrance of air channel 25, between the two away from
From 1~2 times for the diameter of the first 3 d impeller 412, the center of the first 3 d impeller 412 and the distance of the entrance of air channel 25 must be big
In the diameter of the first 3 d impeller 412, the rotary sieve 6 of such porch of air channel 25 can just play a role, but can not be more than 2
Times diameter, otherwise apart from negative pressure region away from too far away.
The mode of this arranged in series, realize oil smoke and directly inhale in line, improve static pressure, lift range hood effect；Two
Level blower fan filtering, adds filter effect, improves grease separating degree；Two-stage fans in series, just it is not required to per one-level rotation speed of fan
It is so high, it can effectively reduce noise.
Embodiment two
Referring to Fig. 7 and Fig. 8, in the present embodiment, it is with the difference of above-described embodiment three, the first ternary blower fan 41
(as first order blower fan) and second ternary blower fan 42 (as second level blower fan) 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 fan 41 is close to right side, the second air intake of the second ternary blower fan 42
Mouth 423 is close to left side, and the second air outlet 414 of the first ternary blower fan 41 is close to left side, the second air-out of the second ternary blower fan 42
Mouthfuls 424 close to right side, now the second air inlet of the first air outlet 414 of the first ternary blower fan 41 and the second ternary blower fan 42
423 is corresponding in vertical direction or close corresponding.The distance between first air inlet 413 and the second air inlet 423 are Vertical Square
Upward distance.
Embodiment three
Referring to Fig. 9 and Figure 10, in the present embodiment, it is with the difference of above-described embodiment three, the first ternary blower fan
41 and the second obliquely upper and lower arranged for interval respectively of ternary blower fan 42, i.e. the first air inlet 413 and water of the first ternary blower fan 41
Square to inclined down, the second air inlet 423 of the second ternary blower fan 42 and horizontal direction be inclinedly down.
Pass through between first air outlet 414 of the first ternary blower fan 41 and the second air inlet 423 of the second ternary blower fan 42
Guide duct 46 connects.Vertical range between the center of the first air inlet 413 of first ternary blower fan 41 and the entrance in air channel 25 is
0.5~2 times of the diameter of first 3 d impeller 412.
This tilting series system, the blower fan whole height of composition is relatively low, and fan outlet static pressure is larger, is advantageous to overcome
The high-rise resistance of ducting, further, since the small size of ternary blower fan, Wind Volume, solve the problems, such as that floor floor height is limited.
Claims (12)
1. a kind of range hood, including exhaust fume collecting hood (1), the cabinet (2) that is arranged on above exhaust fume collecting hood (1) and it is arranged on cabinet (2)
Interior blower fan system (4), air inlet (11) is offered on the exhaust fume collecting hood (1), be provided with below air inlet (11) and lead cigarette
Plate (8), it is characterised in that：The blower fan system (4) includes the first ternary blower fan (41) and the second ternary blower fan being arranged in series
(42), the smoke deflector (8) lower surface at least a portion in be gradually inclined upwardly from centre to edge, thus with exhaust fume collecting hood
(1) corresponding wall coordinates 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：It is oblique that the lower surface of the smoke deflector (8) includes first
At least one in face (81), the second inclined-plane (82) and the 3rd inclined-plane (83), first inclined-plane (81) is by middle court to the left
The first acceleration channels (84) are formed between upper inclination and the left plate (13) of exhaust fume collecting hood (1), second inclined-plane (82) is by centre
Tilt upward to the right and form the second acceleration channels (85), the 3rd inclined-plane between the right plate (14) of exhaust fume collecting hood (1)
(83) the 3rd 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 plate (14) and front side
The inner surface of plate (15) is also in gradual 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)
Connecting pole (87) is respectively arranged with, the connecting pole (87) is connected to the outward flange of the air inlet (11) of exhaust fume collecting hood (1), so that will
Smoke deflector (8) is connected with exhaust fume collecting hood (1).
5. range hood according to claim 4, it is characterised in that：The connecting pole (87) is by motor-driven flexible
Bar.
6. range hood according to claim 1, it is characterised in that：It is described formed with air channel (25) in the cabinet (2)
Bottom, the porch of air channel (25) in cabinet (2) are provided with rotary sieve (6), and the rotary sieve (6) includes being used to filter
The Dropbox (61) of oil smoke and the motor (62) for driving Dropbox (61) to rotate, output shaft (621) insertion of the motor (62)
It is connected to the center of Dropbox (61), the motor (62) is connected by electric machine support (622) and cabinet (2).
7. range hood according to claim 6, it is characterised in that：Offered on the surface of the Dropbox (61) along center
The groove (611) of arc symmetrical and in array arrangement, each groove (611) radially extending along Dropbox, and the groove (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 fan (41) includes the first ternary
Impeller (412) and the first air inlet (413), the second ternary blower fan (42) are entered including the second 3 d impeller (422) and second
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.
9. range hood according to claim 8, it is characterised in that：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.
10. range hood according to claim 8, it is characterised in that：First air inlet (413) and the second air inlet
(413) it is in horizontal arrangement down to be, the first air inlet (413) and air channel (25) entrance of the first ternary blower fan (41) it
Between distance be 1~2 times of the first 3 d impeller (412) diameter, center and the air channel (25) of first 3 d impeller (412)
The distance of entrance is more than the diameter of the first 3 d impeller (412).
11. range hood according to claim 8, it is characterised in that：First air inlet (413) and the second air inlet
(423) it is obliquely down in tilting, the first air inlet (413) center and the air channel (25) of the first ternary blower fan (41)
Entrance between vertical range be 0.5~2 times of diameter of the first 3 d impeller (412).
12. range hood according to claim 11, it is characterised in that：First air-out of the first ternary blower fan (41)
Pass through guide duct (46) between mouth (414) and the second air inlet (423) of the second ternary blower fan (42) to connect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290264.0U CN207214200U (en) | 2017-09-30 | 2017-09-30 | A kind of range hood |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721290264.0U CN207214200U (en) | 2017-09-30 | 2017-09-30 | A kind of range hood |
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| CN207214200U true CN207214200U (en) | 2018-04-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112710014A (en) * | 2020-09-07 | 2021-04-27 | 冯卓林 | Oil fume purification device of two-stage fan |
| CN113932261A (en) * | 2020-07-13 | 2022-01-14 | 青岛海尔智能技术研发有限公司 | Fume exhaust fan |
-
2017
- 2017-09-30 CN CN201721290264.0U patent/CN207214200U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113932261A (en) * | 2020-07-13 | 2022-01-14 | 青岛海尔智能技术研发有限公司 | Fume exhaust fan |
| CN112710014A (en) * | 2020-09-07 | 2021-04-27 | 冯卓林 | Oil fume purification device of two-stage fan |
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