CN106594828B - A kind of top-sucking kitchen ventilator - Google Patents
A kind of top-sucking kitchen ventilator Download PDFInfo
- Publication number
- CN106594828B CN106594828B CN201611128112.0A CN201611128112A CN106594828B CN 106594828 B CN106594828 B CN 106594828B CN 201611128112 A CN201611128112 A CN 201611128112A CN 106594828 B CN106594828 B CN 106594828B
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- China
- Prior art keywords
- spout
- smoke deflector
- air
- guiding device
- smoke
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
Abstract
The invention discloses a kind of top-sucking kitchen ventilators, including exhaust fume collecting hood and smoke deflector, air inlet is offered on exhaust fume collecting hood, the lower section of air inlet is arranged in smoke deflector, air intake passage at least is formed in the left and right sides between smoke deflector and exhaust fume collecting hood, range hood is at least provided with guiding device in the left and right sides, spout is offered on guiding device, spout is located at below exhaust fume collecting hood, the notch setting of smoke deflector and guiding device is divided into two parts by smoke deflector at making the air-flow ejected from spout, a part of air-flow is directly entered air inlet by adjacent air intake passage above smoke deflector, another part air-flow enters air inlet after from smoke deflector flowing underneath to other air intake passages.By the way that guiding device is arranged, the air-flow that guiding device ejects drives oil smoke when intersecting with smoke deflector, and smoke deflector again distributes oil smoke, so that oil smoke is entered inside range hood with more reasonable flow from different channels, the escape for avoiding oil smoke, improves smoke absorption effect.
Description
Technical field
The present invention relates to a kind of cooking apparatus, especially a kind of range hood.
Background technique
At present existing top-sucking kitchen ventilator (be mounted on right above kitchen range, thin type, deep type or tower range hood,
Do not include side inhale and lower-discharging type) most structure type are as follows: top is arranged exhaust fume collecting hood and forms concave cavity (smoke collecting chamber), on exhaust fume collecting hood
It is provided with air inlet and filter screen.The oil smoke generated during the cooking process is collected in smoke collecting chamber, and by connecting with smoke collecting chamber
Logical air duct is discharged outdoor.
A kind of top-sucking kitchen ventilator as disclosed in the Chinese patent application application No. is 201410315985.7, including collection
Petticoat pipe and the air inlet that exhaust fume collecting hood bottom surface is arranged in, oil collection plate are fixed on the underface of air inlet, constitute with air inlet bottom surface
The channel of four sides air inlet, pod are located at the lower surface of oil collection plate, and due to being four sides air inlet, smoking efficiency is higher, and water conservancy diversion
Cover can carry out the water conservancy diversion of four direction to oil smoke, utmostly reinforce the fume-exhausting ability of kitchen ventilator.
Above-mentioned this range hood, for oil smoke caused by cooking stove below during ascension, passing through pod will
Oil smoke is imported into air inlet, although this range hood can be by the setting of oil collection plate and pod thus as far as possible by oil smoke
Sucking, however if the oil smoke amount generated is larger or when having external air flow disturbance, oil smoke is easy to from exhaust fume collecting hood two sides
Thus position escape can not only reduce the smoking efficiency of range hood, but also if the phenomenon that generating fumes escaping, be easy to kitchen
The environment in room impacts, and also will affect the health of user.
Commonly use the mode of composition air curtain at present to prevent fumes escaping, such as application No. is 201610083264.7 China specially
A kind of kitchen ventilator disclosed in benefit, including kitchen ventilator ontology have smoke inlet and the first air curtain portion, are arranged in kitchen ventilator ontology
On, the first air curtain portion has the first air outlet, and the air-flow that flows out from the first air outlet forms air curtain to prevent oil smoke to extending out
It dissipates.
This kitchen ventilator, although fumes escaping can be prevented to a certain extent, the presence of air curtain but to a certain degree
On reduce the rate of climb of oil smoke, reduce smoke absorption effect.
Summary of the invention
The technical problem to be solved by the present invention is in view of the above-mentioned problems of the prior art, providing a kind of raising oil suction
The top-sucking kitchen ventilator of cigarette effect.
The technical scheme of the invention to solve the technical problem is: a kind of top-sucking kitchen ventilator, including collection cigarette
Cover and smoke deflector offer air inlet on the exhaust fume collecting hood, and the lower section of the air inlet is arranged in the smoke deflector, described to lead cigarette
It at least is formed with air intake passage in the left and right sides between plate and exhaust fume collecting hood, the range hood, which is at least provided in the left and right sides, leads
Device is flowed, spout is offered on the guiding device, the spout is located at below exhaust fume collecting hood, it is characterised in that: the smoke deflector
For notch setting with guiding device at making the air-flow ejected from spout be divided into two parts by smoke deflector, a part of air-flow is logical
Cross adjacent air intake passage and be directly entered air inlet above smoke deflector, another part air-flow from smoke deflector flowing underneath to other
Air intake passage after enter air inlet.
Preferably to hinder oil smoke in the escape of two sides, the spout towards smoke deflector and diagonally downward, the spout
It is θ with the angle of vertical direction, 40 °≤θ≤90 °, the bottom of the guiding device has a guide face, and the guide face is from spout
Place, which extends obliquely downward certain distance towards smoke deflector, is re-directed towards smoke deflector tilts upward extension certain distance, so that institute
The air-flow for stating spout ejection forms the flow field tilted upward.
In order to enable the air flow rate for being mixed with cleaned air and oil smoke passed through from the air intake passage of each side with accordingly into
The incoming air area in wind channel is directly proportional, it is ensured that air inlet to greatest extent, the edge minimum point of the smoke deflector and corresponding water conservancy diversion fill
The difference in height between spout set is h, and the horizontal distance between the edge of the smoke deflector and the spout of corresponding guiding device is
L, -50mm≤h≤80mm, 100mm≤L≤400mm.
To avoid in the limiting case, when the air-flow that spout sprays is not flowed to all and led under the influence of by blower suction force
Below cigarette plate, the guide face is arc surface, and the tangent line of end of the guide face far from spout intersects with the normal of smoke deflector
In the top of smoke deflector；Or end of the guide face far from spout tangent line and smoke deflector normal parallel.
Preferably, the guiding device further include air supply channel, the pressure stabilizing cavity that is connected to air supply channel, the spout and steady
Press chamber connection.
In order to ensure the uniformity for the air-flow velocity that spout sprays, the spout is uniform along the length direction of guiding device
Ground arranged for interval.
In order to preferably ensure that spout ejects the uniformity of air-flow and is conducive to the flowing of pressure stabilizing cavity internal gas flow,
The volume of the pressure stabilizing cavity is not less than the flow that the gas entered from air supply channel passes through in 0.1s.
Compared with the prior art, the advantages of the present invention are as follows: by the way that guiding device, the air-flow that guiding device ejects is arranged
Drive oil smoke when intersecting with smoke deflector, smoke deflector again distributes oil smoke, so that oil smoke is with more reasonable flow
Enter inside range hood from different channels, avoids the escape of oil smoke, improve smoke absorption effect；On the other hand, due to
Therefore spout arranged for interval increases the contact area of high-speed flow and peripheral gas flow, has greatly driven peripheral gas flow
Flowing, form the flow field of big flow, which tilts upward, and further hinders the escape of oil smoke.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of range hood of the invention；
Fig. 2 is the schematic diagram that range hood of the invention hides top plate；
Fig. 3 is the structural schematic diagram of the guiding device of range hood of the invention；
Fig. 4 is the cross-sectional view of the guiding device of range hood of the invention；
Fig. 5 is the cross-sectional view of range hood of the invention；
Fig. 6 is the rearview (hiding front side guiding device) 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.
Referring to Fig. 1, Fig. 2 and Fig. 5, a kind of top-sucking kitchen ventilator, including exhaust fume collecting hood 1, the wind being arranged in above exhaust fume collecting hood 1
Hood 2, offers air inlet 11 on exhaust fume collecting hood 1, for blower to be arranged in fan shroud 2, thus oil smoke can by air inlet 11 into
Enter into fan shroud 2, is then exhausted from common flue.It is provided with smoke deflector 3 below the air inlet 11 of exhaust fume collecting hood 1, in the present embodiment
In, smoke deflector 3 is horizontally disposed plate, and alternatively, smoke deflector 3 can also be using any structure in the prior art, such as four
Upper spill or the arch of fovea superior of circumferential lower flange etc..Due to being provided with smoke deflector 3 below the air inlet 11 of exhaust fume collecting hood 1, because
This, is formed with the left and right sides, the air intake passage 12 of front side three between smoke deflector 3 and exhaust fume collecting hood 1.1 top of exhaust fume collecting hood, fan shroud 2
Periphery is provided with from outside to inside gradually acclivitous top plate 4, forms cavity between exhaust fume collecting hood 1 and top plate 4.
Escape outward since the race cigarette phenomenon of top-sucking kitchen ventilator is substantially oil smoke when close to exhaust fume collecting hood 1
Ease, therefore, the present invention change the direction of motion of escape oil smoke by forming a flow field contrary with escaping to prevent oil
Cigarette escape.For this purpose, guiding device 5 is provided at left and right sides of range hood, it alternatively, can also be on a left side for range hood
Guiding device 5 is arranged in right two sides and front side.
Guiding device 5 includes air supply channel 51, the pressure stabilizing cavity 52 being connected to air supply channel 51, the spray being connected to pressure stabilizing cavity 52
The guide face 54 of mouth 53 and the air-flow ejected for pilot jet 53.The air supply channel 51 of each guiding device 5 can be set
Above exhaust fume collecting hood 1, i.e., in the cavity between exhaust fume collecting hood 1 and top plate 4.Preferably, between the air supply channel 51 of each guiding device 5
It can be interconnected by conduit 61, to share a small-sized fan 62, realize air inlet；Or it is also possible to each water conservancy diversion dress
It sets and is provided with small-sized fan 62 at 5 air supply channel 51, realize air inlet.Small-sized fan 62 can be set in exhaust fume collecting hood 1 and top
In cavity between plate 4, by the gap between exhaust fume collecting hood 1 and top plate 4, the air outside range hood is aspirated, or can also
The fraction of air outlet for kitchen ventilator is introduced small-sized fan 62 by filtering.
Referring to Fig. 3 and Fig. 4, guiding device 5 further includes roof 551, side wall 552 and bottom wall 553, roof 551, side wall 552
Above-mentioned pressure stabilizing cavity 52 is constituted with bottom wall 553.Pressure stabilizing cavity 52 is used to stablize the stream pressure entered from air supply channel 51, thus
Guarantee the uniformity of the air-flow velocity sprayed from spout 53.In order to preferably ensure spout 53 eject air-flow uniformity, with
And being conducive to the flowing of 52 internal gas flow of pressure stabilizing cavity, the volume of pressure stabilizing cavity 52 should be not less than to exist from the gas that air supply channel 51 enters
The flow that 0.1s passes through.
Guiding device 5 forms above-mentioned spout 53 between side wall 552 and bottom wall 553 far from 3 side of smoke deflector, in this implementation
Example in, guiding device 5 is elongated, spout 53 along guiding device 5 length direction arranged for interval, such as the front and back in Fig. 5
To.Towards smoke deflector 3 and diagonally downward, the angle of spout 53 and vertical direction is θ to spout 53,40 °≤θ≤90 °.Bottom wall
553 and the lateral surface of the side wall 552 close to 3 side of smoke deflector constitute above-mentioned guide face 54, guide face 54 is from court from spout 53
Certain distance is extended obliquely downward to smoke deflector 3, smoke deflector 3 is hereafter re-directed towards and tilts upward extension certain distance, so as to draw
Lead the air-flow ejected from spout 53.In the present embodiment, it is in recessed arcwall face, alternatively, water conservancy diversion that guide face 54 is whole
Face 54 is also possible to the combination of plane and curved surface, as long as seamlessly transitting between plane and curved surface.
Referring to Fig. 5, as a result, from the air-flow of 53 high speed ejection of spout (being indicated with arrow A) since Coanda effect is along leading
Stream interface 54 moves, and the direction of motion of script is changed, upward from becoming inclined diagonally downward.At this point, air-flow is divided into two
Point, most of air-flow leaves guide face 54 and passes through then above smoke deflector 3 into exhaust fume collecting hood 1 from adjacent air intake passage 12
Air inlet 11, having brought a large amount of oil smoke at the same time, (oil smoke air-flow indicates with arrow C, this part jet-stream wind, outside air
With the mixed airflow of oil smoke shown in arrow D1)；And rest part air-flow then drives lower section (this portion of oil smoke flow to smoke deflector 3
Divide the mixed airflow of jet-stream wind, outside air and oil smoke shown in arrow D2), finally pass through it from the other side of smoke deflector 3
His air intake passage 12 is inhaled into inside range hood.When being provided with guiding device 5 on front side of range hood, part is flowed
Oil smoke to 3 lower section of smoke deflector then sucks at left and right sides of smoke deflector 3.That is, the air-flow that guiding device 5 ejects drives
Oil smoke again distributes oil smoke when intersecting with smoke deflector 3, so that oil smoke is led to more reasonable flow from different
Road enters inside range hood.On the other hand, due to 53 arranged for interval of spout, increase high-speed flow and peripheral gas flow
Contact area, greatly driven the flowing of peripheral gas flow (shown in arrow B), formd the flow field of big flow, should
Flow field tilts upward, and further hinders the escape of oil smoke.
Referring to Fig. 6, in order to enable the air-flow stream for being mixed with cleaned air and oil smoke passed through from the air intake passage 12 of each side
It measures directly proportional to the incoming air area of corresponding air intake passage 12, it is ensured that air inlet to greatest extent, -50mm≤h≤80mm, 100mm≤L
≤ 400mm, wherein h refers to the difference in height between the edge minimum point of smoke deflector 3 and the spout 53 of corresponding guiding device 5, and L is
Refer to the horizontal distance between the edge of smoke deflector 3 and the spout 53 of corresponding guiding device 5.H is smaller, then the air-flow that spout 53 sprays
The ratio for flowing to 3 top of smoke deflector is bigger, and L is bigger, then the ratio for 3 top of air flow direction smoke deflector that spout 53 sprays is bigger.
The tangent line L1 of end of the guide face 54 far from the spout 53 and normal L2 of smoke deflector 3 intersects at the top of smoke deflector 3,
Or tangent line L1 is parallel with the normal L2 of smoke deflector 3, to avoid in the limiting case, when the air-flow that spout 53 sprays not by the wind
3 lower section of smoke deflector is all flowed under the influence of blower suction force in hood 2.
Claims (7)
1. a kind of top-sucking kitchen ventilator, including exhaust fume collecting hood (1) and smoke deflector (3), air inlet is offered on the exhaust fume collecting hood (1)
(11), the smoke deflector (3) is arranged between the lower section of the air inlet (11), the smoke deflector (3) and exhaust fume collecting hood (1) at least
It is formed with air intake passage (12) in the left and right sides, the range hood is at least provided with guiding device (5) in the left and right sides, described
It is offered on guiding device (5) spout (53), the spout (53) is located at below exhaust fume collecting hood (1), it is characterised in that: described to lead cigarette
The spout (53) of plate (3) and guiding device (5) is arranged so that the air-flow ejected from spout (53) is divided by smoke deflector (3)
Two parts, a part of air-flow is directly entered air inlet (11) above smoke deflector (3) by adjacent air intake passage (12), another
Fraction enters air inlet (11) afterwards from smoke deflector (3) flowing underneath to other air intake passages (12).
2. top-sucking kitchen ventilator as described in claim 1, it is characterised in that: the spout (53) towards smoke deflector (3) simultaneously
And diagonally downward, the angle of the spout (53) and vertical direction is θ, 40 °≤θ≤90 °, the bottom of the guiding device (5)
With guide face (54), the guide face (54) extends obliquely downward certain distance, again towards smoke deflector (3) at spout (53)
Extension certain distance is tilted upward towards smoke deflector (3), so that the air-flow formation that the spout (53) sprays tilts upward
Flow field.
3. top-sucking kitchen ventilator as claimed in claim 2, it is characterised in that: the edge minimum point of the smoke deflector (3) with
Difference in height between the spout (53) of corresponding guiding device (5) is h, the edge and corresponding guiding device (5) of the smoke deflector (3)
Spout (53) between horizontal distance be L, -50mm≤h≤80mm, 100mm≤L≤400mm.
4. top-sucking kitchen ventilator as claimed in claim 2 or claim 3, it is characterised in that: the guide face (54) is arc surface, institute
It states guide face (54) tangent line (L1) of end and the normal (L2) of smoke deflector (3) far from spout (53) and intersects at smoke deflector (3)
Top；Or the tangent line (L1) of end of the guide face (54) far from spout (53) and the normal (L2) of smoke deflector (3) are put down
Row.
5. top-sucking kitchen ventilator as claimed in claim 2 or claim 3, it is characterised in that: the guiding device (5) further includes gas source
Channel (51), the pressure stabilizing cavity (52) being connected to air supply channel (51), the spout (53) are connected to pressure stabilizing cavity (52).
6. top-sucking kitchen ventilator as claimed in claim 5, it is characterised in that: the spout (53) is along guiding device (5)
Length direction be evenly spaced arrangement.
7. top-sucking kitchen ventilator as claimed in claim 5, it is characterised in that: the volume of the pressure stabilizing cavity (52) be not less than from
The flow that the gas that air supply channel (51) enters passes through in 0.1s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128112.0A CN106594828B (en) | 2016-12-09 | 2016-12-09 | A kind of top-sucking kitchen ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611128112.0A CN106594828B (en) | 2016-12-09 | 2016-12-09 | A kind of top-sucking kitchen ventilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594828A CN106594828A (en) | 2017-04-26 |
| CN106594828B true CN106594828B (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611128112.0A Active CN106594828B (en) | 2016-12-09 | 2016-12-09 | A kind of top-sucking kitchen ventilator |
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| CN (1) | CN106594828B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975843B (en) * | 2017-05-27 | 2024-02-20 | 宁波方太厨具有限公司 | Fume exhauster |
| CN108006756B (en) * | 2017-06-29 | 2024-02-20 | 宁波方太厨具有限公司 | Fume exhauster |
| CN109595639B (en) * | 2017-09-30 | 2024-01-16 | 宁波方太厨具有限公司 | Near-suction type range hood |
| CN111121122B (en) * | 2018-10-31 | 2021-11-26 | 宁波方太厨具有限公司 | Air blowing and sucking device and range hood with same |
| CN109253484A (en) * | 2018-11-13 | 2019-01-22 | 林德祥 | Smoke evacuation system |
| CN109539353A (en) * | 2018-12-27 | 2019-03-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Exhaust fume collecting hood and range hood |
| CN113154481B (en) * | 2020-01-06 | 2023-04-14 | 宁波方太厨具有限公司 | Cooking system |
| TWI755025B (en) * | 2020-08-14 | 2022-02-11 | 藍天廚飾股份有限公司 | Double-layered diversion structure of kitchen hood and kitchen hood having the same |
| CN116965572B (en) * | 2023-09-22 | 2023-12-01 | 四川中豪食品有限公司 | Material machine is fried to hot pot seasoning |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712832A (en) * | 2004-06-16 | 2005-12-28 | 富士工业株式会社 | Exhaust hood |
| EP1757865A2 (en) * | 2005-08-23 | 2007-02-28 | LG Electronics Inc. | Exhaust hood |
| CN102345891A (en) * | 2011-06-01 | 2012-02-08 | 兰州理工大学 | Self-sucking efficient smoke exhaust ventilator |
| CN206291269U (en) * | 2016-12-09 | 2017-06-30 | 宁波方太厨具有限公司 | A kind of top-sucking kitchen ventilator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140034039A1 (en) * | 2012-08-03 | 2014-02-06 | Yiwei Qi | Air exchange system with multiple air blowers or fans to produce a cyclone-like air flow |
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2016
- 2016-12-09 CN CN201611128112.0A patent/CN106594828B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1712832A (en) * | 2004-06-16 | 2005-12-28 | 富士工业株式会社 | Exhaust hood |
| EP1757865A2 (en) * | 2005-08-23 | 2007-02-28 | LG Electronics Inc. | Exhaust hood |
| CN102345891A (en) * | 2011-06-01 | 2012-02-08 | 兰州理工大学 | Self-sucking efficient smoke exhaust ventilator |
| CN206291269U (en) * | 2016-12-09 | 2017-06-30 | 宁波方太厨具有限公司 | A kind of top-sucking kitchen ventilator |
Also Published As
| Publication number | Publication date |
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| CN106594828A (en) | 2017-04-26 |
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