CN109595651A - A kind of outlet air cover structure and the range hood using the outlet air cover structure - Google Patents
A kind of outlet air cover structure and the range hood using the outlet air cover structure Download PDFInfo
- Publication number
- CN109595651A CN109595651A CN201710924550.6A CN201710924550A CN109595651A CN 109595651 A CN109595651 A CN 109595651A CN 201710924550 A CN201710924550 A CN 201710924550A CN 109595651 A CN109595651 A CN 109595651A
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- cover
- deflector
- air
- spiral case
- outlet
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- 238000009792 diffusion process Methods 0.000 claims abstract description 35
- 238000005192 partition Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 239000003517 fume Substances 0.000 description 6
- 239000000779 smoke Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of outlet air cover structures, cover including being in hollow tube-shape, cover has opposite, the first end and second end of opening, the bore of first end is greater than the bore of second end, the first deflector and the second deflector are provided in cover, each deflector extends from the first end of cover to second end, the first diffusion runner is formed between first deflector and the inner sidewall of cover, the second diffusion runner is formed between second deflector and the inner sidewall of cover, the sectional area of first diffusion runner and the second diffusion runner is gradually reduced by the first end of cover to second end respectively.The range hood that a kind of application has the outlet air cover structure is also disclosed.The guide functions of outlet housing are conducive to exit gas and form laminar flow, avoid the defect that external pipe is directly entered with turbulent condition after air-flow comes out from spiral case, also avoid the strong friction and shock when the air outlet air-flow mixing of two ternary blowers, to which flow losses be greatly lowered, improve efficiency.
Description
Technical field
The present invention relates to machine for kitchen use, especially a kind of blower fan apparatus and its outlet air cover structure.
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, it is and in an increasingly wide range of applications, but since it is dynamic
Power source farther out from hearth, reduces the suction effect of power source, oil smoke cannot exhaust completely；The range hood of near-absorption type utilizes whirlpool
It is separate to flow wind pressure, will largely be absorbed apart from the closer oil smoke of hearth with form of arcs, the bad shadow to human health can be reduced
Ring, and power source is closer from hearth, will not substantially reduce the suction effect of power source, but due to the oil smoke rate of climb compared with
Fastly, or to minority the oil smoke escaped upwards is helpless.
Existing range hood, a kind of range hood as disclosed in the Chinese patent application No. is 201420665919.8,
Including casing, exhaust fume collecting hood, centrifugal blower, panel, oil network, deflector and oil-containing groove, the top of casing is arranged in exhaust fume collecting hood, centrifugation
Blower is arranged in exhaust fume collecting hood, and the air inlet of centrifugal blower is facing forward.It is this list spiral case blower for range hood air draught it is inconsistent,
Operation is unstable, operational efficiency is lower.
For this purpose, there is now the structure of two fans parallel connection, this blower fan structure tool there are two can independent operation blower, energy
The bigger stronger wind-force of enough acquirements, a kind of double volute blower as disclosed in the Chinese patent application No. is 201720109507.X,
Including shell, there are two blowers for the interior setting of shell, and two blowers share an air outlet, and there is air outlet a cylindricality to lead to
Road, is provided with mobilizable wind deflector in the middle part of cylindrical passageway, and wind deflector extends to out along the length direction of cylindrical passageway
Cylindrical passageway is divided into two individual air-out passages by air port, and each air-out passage is connected with a blower, and is rotated
Wind deflector can selectively close one of air-out passage, while another air-out passage being opened.
The mode of this fan parallel-connection, due to impeller flow losses by internal fluid pressure, flow velocity, flow to inconsistent lead
Molecular collision, the shearing friction of cause and generate, this partial loss occupies significant proportion, therefore gas in the mechanical loss of blower
After body enters spiral case, under the driving of impeller, spin movement from impeller center to edge, direction constantly changes, from inside to outside
Pressure and speed are continuously improved, and finally from impeller edge, tangential direction leaves impeller and enters outlet, since volute cross section of fluid channel accumulates
Constantly increase, pressure constantly increases fluid under the action of the centrifugal force, and linear velocity is continuously improved under impeller blade promotion, in volute
The difference of flow velocity and pressure is also increasing in the same radial section of runner, in diffuser pipe, the flow velocity gas different with pressure
Body mutually mixes, and generates strong friction and shock, laminar flow is entered in the form of violent turbulent flow, vortex, in the process gas
A big chunk speed kinetic energy and pressure potential of body are converted into heat and lose, and constitute the pith of flow losses；This
Outside, usually used blower is multi-wing centrifugal fan, and air draught is inconsistent after parallel connection, operation is unstable, operational efficiency is lower.
Summary of the invention
First technical problem to be solved by this invention is in view of the above-mentioned problems of the prior art, providing a kind of drop
Low flow losses, the outlet air cover structure improved efficiency.
Second technical problem to be solved by this invention is to provide the fume-exhausting that a kind of application has above-mentioned outlet air cover structure
Machine.
The present invention solves technical solution used by above-mentioned first technical problem are as follows: a kind of outlet air cover structure, including be in
The cover of hollow tube-shape, the cover have a first end and second end of opposite opening, and the bore of the first end is greater than the
The bore at two ends, it is characterised in that: be provided with the first deflector and the second deflector in the cover, each deflector is from cover
First end extend to second end, form the first diffusion runner between first deflector and the inner sidewall of cover, described the
The second diffusion runner, section of the first diffusion runner and the second diffusion runner are formed between two deflectors and the inner sidewall of cover
Area is gradually reduced by the first end of cover to second end respectively.
Preferably, deflector formed diffusion runner structure be, first deflector by first end to second end, gradually
Towards the second deflector tilt, second deflector by first end to second end, be increasingly towards the first deflector tilt, two
Deflector is interconnected in the position close to second end.
To make air-flow smooth transition, the junction of two deflectors is in rounding off.
For the air-flow mixing for avoiding speed different with pressure and collision, two opposite sides of first deflector and cover
The inner sidewall of body keeps connection, and the inner sidewall holding of two opposite sides of second deflector and cover connects, thus institute
It is independent mutually to state the first diffusion runner and the second diffusion runner.
Noise is exported to reduce, is densely covered with sound-absorbing hole on first deflector and/or the second deflector.
To further decrease noise, the space between first deflector and the second deflector is provided with partition, thus
Space between first deflector and the second deflector is separated at least two resonant cavities.
The present invention solves technical solution used by above-mentioned second technical problem are as follows: a kind of application has above-mentioned outlet housing knot
The range hood of structure, including blower fan system, the blower fan system are two fans parallel-connection structure, and the outlet housing structure setting is in wind
At the air outlet of machine system.
To increase flow efficiency, air quantity is improved, the blower fan system includes the first ternary blower and the second ternary blower, institute
State the first 3 d impeller that the first ternary blower includes the first spiral case He is arranged in the first spiral case, the second ternary blower packet
The second 3 d impeller for including the second spiral case and being arranged in the second spiral case, first spiral case and the second spiral case interval, abreast
The top of arrangement, first spiral case forms the first air outlet, and the top of second spiral case is formed with the second air inlet, described
The cover of outlet air cover structure covers the first air outlet and the second air outlet and is respectively communicated with.
To avoid air-flow from mixing, the first diffusion runner goes out at the first end of cover with the first of the first ternary blower
Air port is corresponding, and the second diffusion runner is corresponding with the second air outlet of the second ternary blower at the first end of cover.
It is energy saving to save space, the synchronism of two impellers is improved, is formed with the first air inlet on first spiral case
Mouthful, be formed with the second air inlet on second spiral case, first air inlet and the second air inlet away from each other, described first
It is provided with driving motor between spiral case and the second spiral case, the driving motor, which has, is respectively used to the first 3 d impeller of driving and the
The double output shaft of two 3 d impellers.
Compared with the prior art, the advantages of the present invention are as follows: by the cover of outlet housing formed two respectively with it is double
The corresponding diffusion runner in the outlet of blower, plays guide functions to the gas accordingly exported, is conducive to exit gas and forms laminar flow,
Formed laminar flow after enter external pipe, avoid air-flow from spiral case come out after with turbulent condition be directly entered external pipe lack
It falls into, the strong friction and shock when the air outlet air-flow mixing of two ternary blowers is also avoided, so that stream be greatly lowered
Dynamic loss, improves efficiency.
Detailed description of the invention
Fig. 1 is the schematic diagram of range hood of the invention；
Fig. 2 is the schematic diagram that range hood of the invention hides cabinet front cover；
Fig. 3 is the blower fan system of range hood of the invention and the cross-sectional view of outlet housing；
Fig. 4 is the schematic diagram of outlet housing of the invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Referring to figs. 1 to 4, a kind of range hood, the cabinet 2 including exhaust fume collecting hood 1, above exhaust fume collecting hood 1, for convenient for retouching
State, hereinafter, "front", "rear", "left", "right", "upper", "lower" each mean user when using range hood, fume-exhausting
Orientation of the machine relative to user, and structure is not limited.
In the present embodiment, cabinet 2 includes front cover 21, the side plate 22 and rear cover 23 for being located at the left and right sides.Cabinet
Blower fan system 3 is provided in 2, blower fan system 3 can use two fans parallel-connection structure as described in the background art.And in this reality
Apply in example, it is preferred that blower fan system 3 include two can independent operation the first ternary blower 31 and the second ternary blower 32, two
A ternary fan parallel-connection setting.Flow efficiency can be significantly increased compared to centrifugal blower by using 3 d impeller, improved
Air quantity.
The first 3 d impeller 312 that first ternary blower 31 spiral case 311 and be arranged in the first spiral case 311 including first,
The second 3 d impeller 322 that second ternary blower 32 spiral case 321 and be arranged in the second spiral case 321 including second.First spiral case
311 and second spiral case 321 side by side, compartment of terrain arrangement, be formed with the first air inlet 313, the second spiral case 321 on the first spiral case 311
On be formed with the second air inlet 323, away from each other, i.e. the air inlet 313 of the first spiral case 311 is formed in the air inlet of two spiral cases
Side far from the second spiral case 321, two back-to-back settings of spiral case, so that two ternary blowers are arranged side by side in left and right, and
First air inlet 313 is towards the left side of cabinet 2, the second air inlet 323 towards the right side of cabinet 2.The top shape of first spiral case 311
At the first air outlet 314, the top of the second spiral case 321 forms the second air outlet 324, the first air outlet 314 and the second air outlet
324 side by side, compartment of terrain arrangement.
The prior art can be used in first 3 d impeller 312 and the second 3 d impeller 322, as the applicant application No. is
201620102790.9 patent disclosed in structure.First 3 d impeller 312 and the second 3 d impeller 322 share same
Driving motor 33, driving motor 33 are arranged between the first spiral case 311 and the second spiral case 321, and driving motor 33 has dual output
Axis, the output shaft 331 thus extended to the left can connect with the first 3 d impeller 312 and the first 3 d impeller 312 driven to operate, to
The output shaft 331 of right extension can connect with the second 3 d impeller 322 and the second 3 d impeller 322 is driven to operate.Thus it may make
Two ternary blowers have preferable synchronism, while again can be energy saving.
Above-mentioned two ternary blower can use same structure, and this arrangement, can not dramatically increase
Under the premise of 2 volume of cabinet, air quantity is greatly improved.
The top of blower fan system 3 is provided with outlet air cover structure 4, and the cover 41 of outlet air cover structure 4 covers the first ternary blower
First air outlet 314 of 31 the first spiral case 311, the second air outlet 324 of the second spiral case 321 of the second ternary blower 32, simultaneously
And it is connected to.In the present embodiment, outlet air cover structure 4 includes cover 41, the deflector being arranged in cover 41.During cover 41 is in
Empty tubular, and opposite first end 411 (lower end) and second end 412 (upper end) is open, the bore of first end 411 is greater than the
The bore at two ends 412 is open and is gradually reduced from the position close to blower fan system 3 to the position far from blower fan system 3, cooking fume
Stream enters in cover 41 from first end 411, and leaves cover 41 into outside connecting with outlet air cover structure 4 from second end 412
Adapter tube road.
Deflector includes the first deflector 421 and the second deflector 422, first end of first deflector 421 from cover 41
411 extend to second end 412, and the first deflector 421 is at the first end 411 of cover 41, with the first ternary blower 31
First edge of the second air outlet 324 close to the second ternary blower 32 at the first air outlet 314 be 315 (the first air outlet
Right edge) corresponding, second air outlet of second deflector 422 at the first end 411 of cover 41, with the second ternary blower 32
Second edge 325 (left side edge of the second air outlet) of the first air outlet 324 close to the first ternary blower 31 at 324 is right
It answers.Each deflector has the width extended in front and rear direction.First deflector 421 by first end 411 to second end 412,
Be increasingly towards the second deflector 422 (to the right) inclination, the second deflector 422 by first end 411 to second end 412, be increasingly towards
First deflector 421 tilts (to the left), i.e., each deflector deviates intermediate position into 41 top of cover from 41 bottom of cover
Between position extend.First deflector 421 is mutually connected with the top (close to the second end 412 of cover 41) of the second deflector 422
It connects, 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 4211,4212 of first deflector 421 is connect with the inner sidewall of cover 41 always, the second water conservancy diversion
The front and rear sides side 4221,4222 of plate 422 is connect with the inner sidewall of cover 41 always.Thus cover 41 is divided into cover 41
The first diffusion runner 431,41 inner sidewall of cover between inner sidewall and the first deflector 421 and between the second deflector 422
Second diffusion runner 432, the first diffusion runner 431 and the second diffusion runner 432 are independent mutually.First diffusion runner 431 is in cover
It is corresponding with the first air outlet 314 of the first ternary blower 31 at the first end 411 of body 41, that is, the first air outlet 314 is completely covered,
Second diffusion runner 432 is corresponding with the second air outlet 324 of the second ternary blower 32 at the first end 411 of cover 41, i.e., complete
The second air outlet of all standing 324.The sectional area of first diffusion runner 431 is gradually reduced by first end 411 to second end 412, the
The sectional area first end 411 of two diffusion runners 432 to second end 412 is gradually reduced, as a result, at the top of the first diffusion runner 431
Muzzle velocity is greater than the muzzle velocity of 431 bottom of the first diffusion runner, and the muzzle velocity at the top of the second diffusion runner 432 is greater than the
The muzzle velocity of two diffusion runners, 432 bottom.
By the way that above-mentioned deflector is arranged, so that be connected to the first air outlet 314 of the first ternary blower 31 first expands
The air velocity of runner 431, the second diffusion runner 42 being connected to the second air outlet 324 of the second ternary blower 32 is pressed to connect each other
Closely.This guide functions of outlet air cover structure 4 are conducive to exit gas and form laminar flow, enter external pipe after forming laminar flow, keep away
Exempt from the defect for being directly entered with turbulent condition external pipe after air-flow comes out from spiral case, also avoids going out for two ternary blowers
Strong friction and shock when air port air-flow mixes improves efficiency so that flow losses be greatly lowered.
It is densely covered with sound-absorbing hole 44 on first deflector 421 and/or the second deflector 422, advantageously reduces outlet noise.For
Further decrease noise, can also space between the first deflector 421 and the second deflector 422 partition 45 is set so that
Space between first deflector 421 and the second deflector 422 is divided at least two resonant cavities 451.Alternatively, can also be
Acoustical cotton is arranged in space between first deflector 421 and the second deflector 422.Alternatively, partition can also be replaced with reinforcing rib
45, to enhance the intensity of deflector.
Claims (10)
1. a kind of outlet air cover structure, the cover (41) including being in hollow tube-shape, the cover (41) has opposite, opening the
One end (411) and second end (412), the bore of the first end (411) are greater than the bore of second end (412), it is characterised in that:
Be provided with the first deflector (421) and the second deflector (422) in the cover (41), each deflector from cover (41) the
One end (411) extends to second end (412), forms first between first deflector (421) and the inner sidewall of cover (41)
Diffusion runner (431) forms the second diffusion runner (432) between second deflector (422) and the inner sidewall of cover (41),
The sectional area of the first diffusion runner (431) and the second diffusion runner (432) respectively by cover (41) first end (411) extremely
Second end (412) is gradually reduced.
2. outlet air cover structure according to claim 1, it is characterised in that: first deflector (421) is by first end
(411) to second end (412), be increasingly towards the second deflector (422) tilt, second deflector (422) is by first end
(411) to second end (412), be increasingly towards the first deflector (421) and tilt, two deflectors are close to second end (412)
Position interconnects.
3. outlet air cover structure according to claim 2, it is characterised in that: the junction of two deflectors is in rounding off.
4. outlet air cover structure according to claim 1, it is characterised in that: opposite two of first deflector (421)
The inner sidewall of side and cover (41) keeps connecting, two opposite sides of second deflector (422) and cover (41)
Inner sidewall keeps connection, and thus the first diffusion runner (431) and the second diffusion runner (432) are independent mutually.
5. outlet air cover structure according to any one of claims 1 to 4, it is characterised in that: first deflector (421)
And/or second be densely covered with sound-absorbing hole (44) on deflector (422).
6. outlet air cover structure according to claim 5, it is characterised in that: first deflector (421) and the second water conservancy diversion
Space between plate (422) is provided with partition (45), thus by between the first deflector (421) and the second deflector (422)
Space is separated at least two resonant cavities (451).
7. a kind of application have the right to require any one of 1~6 described in outlet air cover structure range hood, including blower fan system
(3), the blower fan system (3) is two fans parallel-connection structure, air outlet of the outlet housing structure setting in blower fan system (3)
Place.
8. range hood according to claim 7, it is characterised in that: the blower fan system (3) includes the first ternary blower
(31) include the first spiral case (311) and be arranged in the first spiral case with the second ternary blower (32), the first ternary blower (31)
(311) the first 3 d impeller (312) in, the second ternary blower (32) include the second spiral case (321) and are arranged second
The second 3 d impeller (322) in spiral case (321), first spiral case (311) and the second spiral case (321) interval, abreast cloth
It sets, the top of first spiral case (311) forms the first air outlet (314), and the top of second spiral case (321) is formed with the
Two air outlets (324), cover (41) covering the first air outlet (314) of the outlet air cover structure (4) and the second air outlet
(324) and it is respectively communicated with.
9. range hood according to claim 8, it is characterised in that: the first diffusion runner (431) is in cover (41)
First end (411) at it is corresponding with the first air outlet (314) of the first ternary blower (31), the second diffusion runner (432) is in cover
It is corresponding with the second air outlet (324) of the second ternary blower (32) at the first end (411) of body (41).
10. range hood according to claim 8, it is characterised in that: be formed on first spiral case (311) first into
Air port (313) is formed with the second air inlet (323) on second spiral case (321), first air inlet (313) and second
Air inlet (323) away from each other, is provided with driving motor (33), institute between first spiral case (311) and the second spiral case (321)
Stating driving motor (33) has the double output shaft for being respectively used to driving the first 3 d impeller (312) and the second 3 d impeller (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710924550.6A CN109595651B (en) | 2017-09-30 | 2017-09-30 | Air outlet cover structure and range hood applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710924550.6A CN109595651B (en) | 2017-09-30 | 2017-09-30 | Air outlet cover structure and range hood applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595651A true CN109595651A (en) | 2019-04-09 |
| CN109595651B CN109595651B (en) | 2024-01-16 |
Family
ID=65955780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710924550.6A Active CN109595651B (en) | 2017-09-30 | 2017-09-30 | Air outlet cover structure and range hood applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109595651B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242996A (en) * | 2019-06-27 | 2019-09-17 | 浙江蓝炬星电器有限公司 | A kind of mounting device and outlet housing installation method for integrated kitchen range outlet housing |
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| CN201476127U (en) * | 2009-08-12 | 2010-05-19 | 李怡中 | Dual-motor and dual-windwheel quick-detachable oil-smoke separator |
| EP2535647A1 (en) * | 2011-06-16 | 2012-12-19 | Miele & Cie. KG | Vapour extractor for an oven or a hotplate |
| CN203052780U (en) * | 2012-12-27 | 2013-07-10 | 谈启明 | Range hood |
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| CN106812724A (en) * | 2016-12-12 | 2017-06-09 | 杭州老板电器股份有限公司 | A kind of novel fan system of double streamline air intake |
| CN107191983A (en) * | 2017-01-12 | 2017-09-22 | 宁波方太厨具有限公司 | A kind of range hood |
| CN207214194U (en) * | 2017-09-30 | 2018-04-10 | 宁波方太厨具有限公司 | A kind of range hood of air-out cover structure and application the air-out cover structure |
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2017
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476127U (en) * | 2009-08-12 | 2010-05-19 | 李怡中 | Dual-motor and dual-windwheel quick-detachable oil-smoke separator |
| EP2535647A1 (en) * | 2011-06-16 | 2012-12-19 | Miele & Cie. KG | Vapour extractor for an oven or a hotplate |
| CN203052780U (en) * | 2012-12-27 | 2013-07-10 | 谈启明 | Range hood |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242996A (en) * | 2019-06-27 | 2019-09-17 | 浙江蓝炬星电器有限公司 | A kind of mounting device and outlet housing installation method for integrated kitchen range outlet housing |
| CN110242996B (en) * | 2019-06-27 | 2024-03-29 | 浙江蓝炬星电器有限公司 | Mounting device and method for integrated kitchen air outlet cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109595651B (en) | 2024-01-16 |
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