CN109780596A - A kind of noise reduction guiding device and application have the range hood of the noise reduction guiding device - Google Patents
A kind of noise reduction guiding device and application have the range hood of the noise reduction guiding device Download PDFInfo
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- CN109780596A CN109780596A CN201711107084.9A CN201711107084A CN109780596A CN 109780596 A CN109780596 A CN 109780596A CN 201711107084 A CN201711107084 A CN 201711107084A CN 109780596 A CN109780596 A CN 109780596A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims description 31
- 239000003517 fume Substances 0.000 claims description 8
- 238000005452 bending Methods 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 4
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- 238000010521 absorption reaction Methods 0.000 description 3
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- 230000000644 propagated effect Effects 0.000 description 2
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- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010001497 Agitation Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
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Abstract
The invention discloses a kind of noise reduction guiding devices, it is characterised in that: including bottom plate；First side plate, positioned at the bottom plate side and extend upwards in upper and lower；Second side plate extends upwards positioned at the bottom plate side opposite with the first side plate and in upper and lower；For being arranged blower fan system between first side plate and the second side plate, the through-hole for cooperating with blower fan system is offered in at least one of which of first side plate and the second side plate.Also disclose the range hood that a kind of application has above-mentioned noise reduction guiding device.By the side plates of left and right two water conservancy diversion by inside the air duct of range hood air-flow vortex and blower fan system separate, effectively avoid the collision between vortex, it in this way can be while reducing noise, it leads along internal air-flow, keep air-flow more smooth, to increase air quantity, kitchen ventilator air draught effect is improved, the occasion of two fans in parallel is especially adapted for use in.
Description
Technical field
The present invention relates to range hoods, in particular for the noise reduction guiding device of range hood.
Background technique
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family.But with making for range hood
With being the strong noise generated by blower, for a long time housewife under this noise and kitchen operation personnel, meeting the problem of bringing
The adverse reactions such as headache, agitation, palpitation are generated, health is caused to seriously affect.
The noise reduction technology and method of currently known range hood are one side optimization designs, improve the performance of blower, make
On the other hand the noise of blower itself and vibration decline are to improve complete machine in relation to zero to achieve the purpose that total noise of centrifuge declines
The rigidity of component, the especially rigidity of sheet metal of outer cover part, inhibit the generation of its resonance noise.But the two aspects have all arrived
The limit of technology is reached, noise reduction effect is also not highly desirable.
The kitchen ventilator placed side by side for blower, one kind as disclosed in the Chinese patent application No. is 201220735878.6
Smoke exhaust ventilator, including the wind centralizing cavity that shell and front panel surround jointly, blower setting is provided with suction in wind centralizing cavity, on front panel
Mouth and flip lid for covering smoking port, blower include the first blower and the second blower, and first blower and the second blower are simultaneously
Row's setting.
The turbine noise of this range hood is not only propagated along chimneying, and can be made an uproar through casing to external radiation
Sound, meanwhile, the pneumatic noise and electromagnetic noise of blower fan group are also propagated outward, pollute ambient enviroment.In addition, wind placed side by side
Machine, the superposition that noise is equivalent to two single fan noises are only arranged with general sound insulation when Standard of Environmental Noise is more demanding
Noise cannot be efficiently controlled by applying, it is necessary to comprehensively consider Noise control program.And the mode of this fan parallel-connection, due to impeller
Flow losses by internal fluid pressure, flow velocity, flow to it is inconsistent caused by molecular collision, shearing friction and generate, this portion
Point loss occupies significant proportion in the mechanical loss of blower, therefore after gas enters spiral case, under the driving of impeller, from impeller
Center is spinned movement to edge, and direction constantly changes, and pressure and speed are continuously improved from inside to outside, is finally cut from impeller edge
Line direction leaves impeller and enters outlet, and since volute cross section of fluid channel product constantly increases, pressure is continuous under the action of the centrifugal force for fluid
Increase, linear velocity is continuously improved under impeller blade promotion, the difference of flow velocity and pressure in the same radial section of volute runner
Also not increasing, in diffuser pipe, the flow velocity gas different with pressure is mutually mixed, and generates strong friction and shock, with
The form of violent turbulent flow, vortex enters laminar flow, and a big chunk speed kinetic energy of gas and pressure potential turn in the process
It turns to heat and loses, constitute the pith of flow losses.
Summary of the invention
First technical problem to be solved by this invention is mentioned in view of the above-mentioned problems of the prior art, providing one kind
The noise reduction guiding device of high noise reduction effect.
Second technical problem to be solved by this invention is to provide the oil suction that a kind of application has above-mentioned noise reduction guiding device
Smoke machine.
The present invention solves technical solution used by above-mentioned first technical problem are as follows: a kind of noise reduction guiding device, it is special
Sign is: including
Bottom plate；
First side plate, positioned at the bottom plate side and extend upwards in upper and lower；
Second side plate extends upwards positioned at the bottom plate side opposite with the first side plate and in upper and lower；
For blower fan system to be arranged between first side plate and the second side plate, first side plate and the second side plate are extremely
The through-hole for cooperating with blower fan system is offered on one of them less.
For what is formed convenient for guidance air-flow, first side plate top with the direction bending for being directed away from the second side plate
First flow guiding inclined plate.
To further decrease noise, the first sound-absorbing hole is offered on first flow guiding inclined plate.
For what is formed convenient for guidance air-flow, second side plate top with the direction bending for being directed away from the first side plate
Second flow guiding inclined plate.
To further decrease noise, the second sound-absorbing hole is offered on second flow guiding inclined plate.
The present invention solves technical solution used by above-mentioned second technical problem are as follows: a kind of application has drop as described above
It makes an uproar the range hood of guiding device, including exhaust fume collecting hood, the cabinet being arranged in above exhaust fume collecting hood and the blower system being arranged in cabinet
It unites, air duct is formed in the cabinet, the noise reduction guiding device is arranged in the air duct, first side plate and second side
The top of plate is connected and fixed with cabinet respectively, thus separates blower fan system and air duct.
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, offered on the first side plate of the noise reduction guiding device with the first of the first ternary blower into
It is logical to offer corresponding with the second air inlet hole of the second ternary blower second on second side plate for the corresponding first through hole of air holes
Hole.
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.
Compared with the prior art, the advantages of the present invention are as follows: by the side plates of left and right two water conservancy diversion by the wind of range hood
Air-flow vortex and blower fan system inside road separate, and effectively avoid the collision between vortex, can reduce the same of noise in this way
When, it leads along internal air-flow, keeps air-flow more smooth, to increase air quantity, improve kitchen ventilator air draught effect, it is especially suitable
Occasion for two fans in parallel；The blower overall volume constituted after two fans are in parallel is smaller, it is not necessary to change the original ruler of cabinet
It is very little, air quantity can be made double again in the case where keeping higher wind pressure, improve fume-exhausting efficiency；Two air inlets are respectively facing
Arranged on left and right sides is suitable for two kitchen ranges, achievees the effect that not run cigarette, noise so that the negative pressure region area of two side peripheries increases
Propagation path reduces noise not towards user.
Detailed description of the invention
Fig. 1 is the schematic diagram of range hood one embodiment of the invention；
Fig. 2 is the schematic diagram of range hood one embodiment hidden parts cabinet of the invention；
Fig. 3 is the blower fan system of range hood one embodiment of the invention and the schematic diagram of noise reduction guiding device；
Fig. 4 is the schematic diagram of the noise reduction guiding device of Fig. 3；
Fig. 5 is the blower fan system of the range hood of Fig. 2 and the cross-sectional view of outlet housing；
Fig. 6 is the schematic diagram of the outlet housing of the range hood of Fig. 2；
Fig. 7 is the schematic diagram of second embodiment of blower fan system of range hood of the invention；
Fig. 8 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, a kind of range hood, including exhaust fume collecting hood 1, setting are above exhaust fume collecting hood 1
Cabinet 2, be provided with blower fan system 4 in cabinet 2.Oil smoke can be aspirated through exhaust fume collecting hood 1 and entered by the blower fan system 4 in cabinet 2
Common flue is discharged into after to cabinet 2.
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, air duct 25 is preferably gradually reduced from the bottom to top.The inlet in air duct 25 is provided with strainer 26.
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 is two ternary blowers in parallel, since ternary blower has
Have the characteristics that compact-sized, size is relatively small, fan efficiency and wind pressure are high, the suction gradient that can be generated is big, can to inhale
Cigarette efficiency is significantly promoted.The outlet housing 5 connecting with the air outlet of blower fan system 4 is provided with above cabinet 2, to pass through outlet air
Cover 5, can be drained into common flue for oil smoke.
Blower fan system 4 include two can independent operation the first ternary blower fan system 41 and the second ternary blower fan system 42,
Two ternary fan parallel-connection settings.Flow efficiency can be significantly increased, mention compared to centrifugal blower by using 3 d impeller
High air quantity.Noise reduction guiding device 8 is provided in the air duct 25 of cabinet 2.
Referring to figs. 5 and 6, the first ternary blower fan system 41 includes the first spiral case 411 and is arranged in the first spiral case 411
First 3 d impeller 412, the second ternary blower fan system 42 include second spiral case 421 and be arranged in the second spiral case 421 second
3 d impeller 422.First spiral case 411 and the second spiral case 421 side by side, compartment of terrain arrangement, be formed on the first spiral case 411 first into
Air port 413, is formed with the second air inlet 423 on the second spiral case 421, the air inlet of two spiral cases away from each other, i.e. the first spiral case
411 air inlet 313 is formed in the side far from the second spiral case 421, two back-to-back settings of spiral case, so that two ternary blowers
It is arranged side by side in left and right, 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
Side.When oil smoke enters from exhaust fume collecting hood 1, entered in blower fan system 4 from arranged on left and right sides respectively.First is formed in first spiral case 411
Oil smoke channel 441, the top in the first oil smoke channel 441 form the first air outlet 414, form the second oil smoke in the second spiral case 421
Channel 442,442 top of the second oil smoke channel form the second air outlet 424, and the first air outlet 414 and the second air outlet 424 are simultaneously
Row, 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 strainer 26 of such 25 inlet of air duct can just play a role, but can not be big
In 2 times of 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.
Referring back to Fig. 3 and Fig. 4, noise reduction guiding device 8 includes bottom plate 81, the first side plate 82 and the second side plate 83, the first side
Plate 82 and the second side plate 83 extend in upper and lower upwards respectively.Wherein, bottom plate 81 is opposite with 25 entrance of air duct, the first side plate 82
Corresponding to the first ternary blower 41, the second side plate 83 is corresponding to the second ternary blower 42,83 phase of the first side plate 82 and the second side plate
To setting.
First side plate 82 is located at the left side (or front side) of bottom plate 81, seamlessly transits between bottom and bottom plate 81, first
First through hole 821 corresponding with the first air inlet 413 of the first ternary blower 41 is offered on side plate 82, on the first side plate 82
Portion, the left side wall 21 (direction far from the second side plate 83) for being partially toward cabinet 2 above first through hole 821 are bent and shape
At the first flow guiding inclined plate 822, the first flow guiding inclined plate 822 is from the bottom to top, by the first ternary blower 41 towards the left side wall 21 of cabinet 2
Inclination extends, and can be connected and fixed on top and left side wall 21.
Second side plate 83 is located at the right side (or rear side, opposite with the first side plate 82) of bottom plate 81, bottom and bottom
It is seamlessly transitted between plate 81, corresponding with the second air inlet 423 of the second ternary blower 42 is offered on the second side plate 83
Two through-holes 831,83 top of the second side plate, the right side wall 22 for being partially toward cabinet 2 above the second through-hole 831 are (far from the
The direction of side plate 82) bending and formed the second flow guiding inclined plate 832, the second flow guiding inclined plate 832 from the bottom to top, by the second ternary wind
The right side wall 22 of machine 42 towards cabinet 2, which tilts, to be extended, and can be connected and fixed on top and right side wall 22.Two water conservancy diversion are oblique as a result,
Spacing between plate from top to bottom, towards the air inlet direction of each blower is gradually reduced.
In the range hood course of work, air flow swirl small one by one can be generated inside the air duct 25 of cabinet 2, these gas
Stream whirlpool can generate noise after colliding, and air-flow is made to carry out in-fighting in inside, influence the promotion of air quantity；Thus the present invention exists
The medial surface of the cabinet 2 opposite with air inlet is equipped with the major flow noise reduction body extended up and down, passes through left and right two water conservancy diversion
Plate separates the air-flow vortex inside the air duct 25 of range hood, effectively avoids the collision between vortex, can make an uproar in this way in reduction
It while sound, leads along internal air-flow, keeps air-flow more smooth, to increase air quantity, improve kitchen ventilator air draught effect；This
Outside, the left side wall 21 of cabinet 2 and right side wall 22 can open voluntarily, and be cleaned to take out blower fan system 4.
The first sound-absorbing hole 823 and the second sound absorption can be offered on first flow guiding inclined plate 822 and the second flow guiding inclined plate 832 respectively
Hole 833, to further decrease noise.
Oil dripping hole 811 is offered on bottom plate 81, so that the greasy dirt for dripping the blower fan system being collected into 4, cabinet 2 passes through drop
Oilhole 811 is discharged.
The noise reduction guiding device 8 of the present embodiment can be used for double air intake blower fans, through-hole and blower on each deflector
One of air inlet it is corresponding.
Claims (10)
1. a kind of noise reduction guiding device, it is characterised in that: including
Bottom plate (81)；
First side plate (82) is located at the side of the bottom plate (81) and extends upwards in upper and lower；
Second side plate (83) is located at the bottom plate (81) side opposite with the first side plate (82) and prolongs upwards in upper and lower
It stretches；
For being arranged blower fan system (4) between first side plate (82) and the second side plate (83), first side plate (82) and
The through-hole for cooperating with blower fan system (4) is offered in at least one of which of second side plate (83).
2. noise reduction guiding device according to claim 1, it is characterised in that: the first side plate (82) top has direction
The first flow guiding inclined plate (822) of direction bending far from the second side plate (83) and formation.
3. noise reduction guiding device according to claim 2, it is characterised in that: opened up on first flow guiding inclined plate (822)
There are the first sound-absorbing hole (823).
4. noise reduction guiding device according to claim 1, it is characterised in that: the second side plate (83) top has direction
The second flow guiding inclined plate (832) of direction bending far from the first side plate (82) and formation.
5. noise reduction guiding device according to claim 4, it is characterised in that: opened up on second flow guiding inclined plate (822)
There are the second sound-absorbing hole (823).
6. a kind of application is just like the range hood of noise reduction guiding device according to any one of claims 1 to 5, including exhaust fume collecting hood
(1), the cabinet (2) being arranged above exhaust fume collecting hood (1) and the blower fan system (4) being arranged in cabinet (2), the cabinet (2) are interior
It is formed with air duct (25), the noise reduction guiding device setting is in the air duct (25), first side plate (82) and second side
The top of plate (83) is connected and fixed with cabinet (2) respectively, thus separates blower fan system (4) and air duct (25).
7. range hood according to claim 6, it is characterised in that: the blower fan system (4) includes be arranged in parallel
One ternary blower (41) and the second ternary blower (42), the first ternary blower (41) include the first 3 d impeller (412) and
First air inlet (413), the second ternary blower (42) include the second 3 d impeller (422) and the second air inlet (423),
On oil smoke flow path, second air inlet (413) is equal with the first air inlet (413) position, first air inlet
(413) arranged on left and right sides of cabinet (2), the noise reduction water conservancy diversion dress are set side by side and are respectively facing with the second air inlet (413)
First through hole corresponding with the first air inlet hole (413) of the first ternary blower (41) is offered on the first side plate (82) set
(821), it is logical that corresponding with the second air inlet hole (423) of the second ternary blower (41) second is offered on second side plate (83)
Hole (831).
8. range hood according to claim 7, 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.
9. range hood according to claim 7, it is characterised in that: the first ternary blower (41) further includes the first snail
Shell (411), in the first spiral case (411), the second ternary blower (42) further includes for the first 3 d impeller (412) setting
Second spiral case (421), second 3 d impeller (422) setting in the second spiral case (421), first spiral case (411) and
Second spiral case (421) interval is arranged side by side, and first air inlet (413) is formed on the first spiral case (411), and described the
Two air inlets (423) are formed on the second spiral case (421), are 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).
10. range hood according to claim 7, 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109780596B CN109780596B (en) | 2024-01-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113453509A (en) * | 2021-06-28 | 2021-09-28 | 常州博瑞电力自动化设备有限公司 | Air guide sleeve and production method thereof |
| CN113899066A (en) * | 2021-11-03 | 2022-01-07 | 汉尔姆建筑科技有限公司 | Air duct structure for sound insulation and noise reduction |
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| WO1999046956A1 (en) * | 1998-03-09 | 1999-09-16 | Brian Turnbull | Radial pickup microphone enclosure |
| CN103982469A (en) * | 2014-05-21 | 2014-08-13 | 西安交通大学 | Noise reduction fan volute for range hood |
| TWM521808U (en) * | 2015-11-10 | 2016-05-11 | Delsolar Wujiang Ltd | Deposition mask |
| CN206330187U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of single air-inlet range hood |
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| WO1999046956A1 (en) * | 1998-03-09 | 1999-09-16 | Brian Turnbull | Radial pickup microphone enclosure |
| CN103982469A (en) * | 2014-05-21 | 2014-08-13 | 西安交通大学 | Noise reduction fan volute for range hood |
| TWM521808U (en) * | 2015-11-10 | 2016-05-11 | Delsolar Wujiang Ltd | Deposition mask |
| CN206330187U (en) * | 2016-12-29 | 2017-07-14 | 宁波方太厨具有限公司 | A kind of single air-inlet range hood |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113453509A (en) * | 2021-06-28 | 2021-09-28 | 常州博瑞电力自动化设备有限公司 | Air guide sleeve and production method thereof |
| CN113899066A (en) * | 2021-11-03 | 2022-01-07 | 汉尔姆建筑科技有限公司 | Air duct structure for sound insulation and noise reduction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109780596B (en) | 2024-01-16 |
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