CN206291269U - A kind of top-sucking kitchen ventilator - Google Patents
A kind of top-sucking kitchen ventilator Download PDFInfo
- Publication number
- CN206291269U CN206291269U CN201621347546.5U CN201621347546U CN206291269U CN 206291269 U CN206291269 U CN 206291269U CN 201621347546 U CN201621347546 U CN 201621347546U CN 206291269 U CN206291269 U CN 206291269U
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- Prior art keywords
- spout
- smoke deflector
- air
- guiding device
- smoke
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Abstract
The utility model discloses a kind of top-sucking kitchen ventilator, including exhaust fume collecting hood and smoke deflector, air inlet is offered on exhaust fume collecting hood, smoke deflector is arranged on the lower section of air inlet, at least air intake passage is formed between smoke deflector and exhaust fume collecting hood in the left and right sides, 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 exhaust fume collecting hood lower section, smoke deflector is divided into two parts into the air-flow for causing to be ejected from spout with the notch setting of guiding device by smoke deflector, a part of air-flow is directly entered air inlet by adjacent air intake passage from smoke deflector top, another part air-flow from smoke deflector flowing underneath to other air intake passages after enter air inlet.By setting guiding device, the air-flow that guiding device is ejected drives oil smoke when intersecting with smoke deflector, and smoke deflector is distributed oil smoke again so that oil smoke is entered inside range hood with more rational flow from different passages, the escape of oil smoke is avoided, smoke absorption effect is improved.
Description
Technical field
The utility model is related to a kind of cooking apparatus, especially a kind of range hood.
Background technology
At present existing top-sucking kitchen ventilator (be arranged on directly over kitchen range, thin type, deep type or tower range hood,
Include side inhale and lower-discharging type) mostly structure type be：Top sets exhaust fume collecting hood and forms concave cavity (smoke collecting chamber), on exhaust fume collecting hood
It is provided with air inlet and screen pack.The oil smoke produced in cooking process is collected in smoke collecting chamber, and is connected by with smoke collecting chamber
Logical air channel discharge is outdoor.
A kind of top-sucking kitchen ventilator as disclosed in the Chinese patent application of Application No. 201410315985.7, including collection
Petticoat pipe and the air inlet of exhaust fume collecting hood bottom surface is arranged on, oil collection plate is fixed on the underface of air inlet, is constituted with air inlet bottom surface
The passage of four side air intakes, kuppe is located at the lower surface of oil collection plate, and due to being four side air intakes, smoking efficiency is higher, and water conservancy diversion
Cover can carry out the water conservancy diversion of four direction to oil smoke, at utmost strengthen the fume-exhausting ability of lampblack absorber.
Above-mentioned this range hood, the oil smoke produced by cooking stove below, will by kuppe during ascension
Oil smoke is imported into air inlet, although this range hood can be by the setting of oil collection plate and kuppe so that by oil smoke as far as possible
Suction, but if the oil smoke amount for producing is larger or when having external air flow to disturb, oil smoke is easy to from exhaust fume collecting hood both sides
Position is escaped, and thus can not only reduce the smoking efficiency of range hood, and if producing the phenomenon of fumes escaping, easily to kitchen
The environment in room is impacted, and can also influence the health of user.
The mode of composition air curtain is commonly used at present to prevent fumes escaping, such as China of Application No. 201610083264.7 specially
A kind of sharp disclosed lampblack absorber, including lampblack absorber body, with smoke inlet, and the first air curtain portion, it is arranged on lampblack absorber body
On, the first air curtain portion has the first air outlet, and the air-flow flowed out from the first air outlet forms air curtain to prevent oil smoke to extending out
Dissipate.
This lampblack absorber, although can to a certain extent prevent fumes escaping, but the presence of air curtain but to a certain degree
On reduce the rate of climb of oil smoke, reduce smoke absorption effect.
Utility model content
Technical problem to be solved in the utility model is directed to the problem that above-mentioned prior art is present, there is provided one kind is improved
The top-sucking kitchen ventilator of smoke absorption effect.
The utility model solve the technical scheme that is used of above-mentioned technical problem for：A kind of top-sucking kitchen ventilator, including
Exhaust fume collecting hood and smoke deflector, offer air inlet on the exhaust fume collecting hood, the smoke deflector is arranged on the lower section of the air inlet, described
Air intake passage at least is formed with the left and right sides between smoke deflector and exhaust fume collecting hood, the range hood is at least set in the left and right sides
There is guiding device, spout offered on the guiding device, the spout is located at exhaust fume collecting hood lower section, it is characterised in that：It is described to lead
Cigarette plate is divided into two parts, a part of gas into the air-flow for causing to be ejected from spout with the notch setting of guiding device by smoke deflector
Stream is directly entered air inlet by adjacent air intake passage from smoke deflector top, another part air-flow from smoke deflector flowing underneath to
Enter air inlet after other air intake passages.
Preferably to hinder oil smoke in the escape of both 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, the guide face is from spout
Place extends obliquely downward certain distance towards smoke deflector, be re-directed towards smoke deflector tilts upward extension certain distance, so that institute
The air-flow for stating spout ejection forms the flow field for tilting upward.
In order that the air flow rate for being mixed with cleaned air and oil smoke that passes through of air intake passage from each side with accordingly enter
The incoming air area of wind passage is directly proportional, it is ensured that air intake to greatest extent, and edge minimum point and the corresponding water conservancy diversion of the smoke deflector are filled
Difference in height between the spout put is h, and the horizontal range 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, all flowing to and lead under the influence of the air-flow that spout sprays is not by blower fan suction force
Cigarette plate lower section, the guide face is arc surface, and the guide face intersects away from the tangent line of the end of spout with the normal of smoke deflector
In the top of smoke deflector；Or the guide face is away from the tangent line of the end of spout and the normal parallel of smoke deflector.
Preferably, the guiding device also includes the pressure stabilizing cavity of source of the gas passage and source of the gas channel connection, the spout with it is steady
The connection of pressure chamber.
In order to ensure the uniformity of 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 source of the gas passage passes through in 0.1s.
Compared with prior art, the utility model has the advantage of：By setting guiding device, what guiding device was ejected
Air-flow drives oil smoke when intersecting with smoke deflector, and smoke deflector is distributed oil smoke again so that oil smoke is with more rational
Flow enters inside range hood from different passages, it is to avoid the escape of oil smoke, improves smoke absorption effect；On the other hand,
Due to spout arranged for interval, therefore, the contact area of high velocity air and peripheral gas flow is increased, greatly drive periphery
The flowing of air-flow, forms the flow field of big flow, and the flow field tilts upward, and further hinders the escape of oil smoke.
Brief description of the drawings
Fig. 1 is the structural representation of range hood of the present utility model；
Fig. 2 is the schematic diagram that range hood of the present utility model hides top board；
Fig. 3 is the structural representation of the guiding device of range hood of the present utility model；
Fig. 4 is the sectional view of the guiding device of range hood of the present utility model；
Fig. 5 is the sectional view of range hood of the present utility model；
Fig. 6 is the rearview (hiding front side guiding device) of range hood of the present utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Referring to Fig. 1, Fig. 2 and Fig. 5, a kind of top-sucking kitchen ventilator, including exhaust fume collecting hood 1, it is arranged on the wind of the top of exhaust fume collecting hood 1
Hood 2, offers for setting blower fan in air inlet 11, fan shroud 2, so that oil smoke can be entered by air inlet 11 on exhaust fume collecting hood 1
Enter in fan shroud 2, be then exhausted from common flue.The lower section of air inlet 11 of exhaust fume collecting hood 1 is provided with smoke deflector 3, in the present embodiment
In, smoke deflector 3 is horizontally disposed flat board, and alternatively, smoke deflector 3 can also be using any structure in the prior art, such as four
All arches of the upper spill of flange or fovea superior etc. downwards.Because the lower section of air inlet 11 of exhaust fume collecting hood 1 is provided with smoke deflector 3, 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.The top of exhaust fume collecting hood 1, fan shroud 2
Periphery is provided with from outside to inside gradually acclivitous top board 4, and cavity is formed between exhaust fume collecting hood 1 and top board 4.
Outwards escape when near exhaust fume collecting hood 1 because the race cigarette phenomenon of top-sucking kitchen ventilator is substantially oil smoke
Ease, therefore, the utility model changes the direction of motion of escape oil smoke to prevent by forming a flow field in opposite direction with escape
Only fumes escaping.Therefore, the left and right sides of range hood is provided with guiding device 5, alternatively, it is also possible in range hood
The left and right sides and front side set guiding device 5.
Guiding device 5 includes the spray that the pressure stabilizing cavity 52 that source of the gas passage 51 is connected with source of the gas passage 51 is connected with pressure stabilizing cavity 52
The guide face 54 of mouth 53 and the air-flow ejected for pilot jet 53.The source of the gas passage 51 of each guiding device 5 can be set
In the top of exhaust fume collecting hood 1, i.e., in the cavity between exhaust fume collecting hood 1 and top board 4.Preferably, between the source of the gas passage 51 of each guiding device 5
Can be interconnected by conduit 61, so as to share a small-sized fan 62, realize air intake；Or can also be each water conservancy diversion dress
Small-sized fan 62 is provided with the source of the gas passage 51 for putting 5, air intake is realized.Small-sized fan 62 can be arranged on exhaust fume collecting hood 1 and top
In cavity between plate 4, by the gap between exhaust fume collecting hood 1 and top board 4, the air outside suction range hood, or also may be used
With by the fraction of air outlet for kitchen ventilator small-sized fan 62 is incorporated into by filtering.
Referring to Fig. 3 and Fig. 4, guiding device 5 also 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 for the stream pressure that stabilization enters from source of the gas passage 51, so that
Ensure the uniformity of the air-flow velocity from the ejection of spout 53.In order to preferably ensure spout 53 eject air-flow uniformity, with
And being conducive to the flowing of the internal gas flow of pressure stabilizing cavity 52, the volume of pressure stabilizing cavity 52 should be not less than the gas entered from source of the gas passage 51 and exist
The flow that 0.1s passes through.
Guiding device 5 forms above-mentioned spout 53 away between the side wall 552 and bottom wall 553 of the side of smoke deflector 3, in this implementation
Example in, guiding device 5 is elongated, spout 53 along guiding device 5 length direction arranged for interval, the front and back in such as Fig. 5
To.Towards smoke deflector 3 and diagonally downward, spout 53 is θ, 40 °≤θ≤90 ° with the angle of vertical direction to spout 53.Bottom wall
553 and the lateral surface of the side wall 552 near the side of smoke deflector 3 constitute above-mentioned guide face 54, guide face 54 is from court at spout 53
Certain distance is extended obliquely downward to smoke deflector 3, smoke deflector 3 is hereafter re-directed towards and is tilted upward extension certain distance, so as to can 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 overall
Face 54 can also be the combination of plane and curved surface, as long as being seamlessly transitted between plane and curved surface.
Referring to Fig. 5, thus, the air-flow (being represented with arrow A) sprayed at a high speed from spout 53 is because Coanda effect is along leading
Stream interface 54 is moved, and the direction of motion of its script is changed, upward from becoming inclined diagonally downward.Now, air-flow is divided into two
Point, most of air-flow leaves guide face 54 and enters exhaust fume collecting hood 1 by and then from the top of smoke deflector 3 from adjacent air intake passage 12
Air inlet 11, (oil smoke air-flow represents with arrow C, this part jet-stream wind, extraneous air at the same time to have brought substantial amounts of oil smoke into
With the mixed airflow of oil smoke with shown in arrow D1)；And remainder air-flow then drives lower section (this portion of oil smoke flow to smoke deflector 3
Divide the mixed airflow of jet-stream wind, extraneous air and oil smoke with shown in arrow D2), finally pass through it from the opposite 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 the lower section of smoke deflector 3 is then sucked from the left and right sides of smoke deflector 3.That is, the air-flow that guiding device 5 is ejected drives
Oil smoke is distributed oil smoke again when intersecting with smoke deflector 3 so that oil smoke is led to more rational flow from different
Road enters inside range hood.On the other hand, due to the arranged for interval of spout 53, therefore, increase high velocity air and peripheral gas flow
Contact area, greatly driven the flowing of peripheral gas flow (with shown in arrow B), form 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 that obtaining the air-flow stream for being mixed with cleaned air and oil smoke that the air intake passage 12 from each side passes through
Amount is directly proportional to the incoming air area of corresponding air intake passage 12, it is ensured that air intake, -50mm≤h≤80mm, 100mm≤L to greatest extent
≤ 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 range between the edge and the spout 53 of corresponding guiding device 5 of smoke deflector 3.H is smaller, then the air-flow that spout 53 sprays
The ratio for flowing to the top of smoke deflector 3 is bigger, and L is bigger, then the ratio of the top of air flow direction smoke deflector 3 that spout 53 sprays is bigger.
Guide face 54 intersects at the top of smoke deflector 3 away from the tangent line L1 of the end of spout 53 and the normal L2 of smoke deflector 3,
Or tangent line L1 is parallel with the normal L2 of smoke deflector 3, to avoid in the limiting case, the air-flow sprayed when spout 53 is not by the wind
The lower section of smoke deflector 3 is all flowed under the influence of blower fan 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 on the lower section of the air inlet (11), between the smoke deflector (3) and exhaust fume collecting hood (1) at least
Air intake passage (12) is formed with the left and right sides, the range hood is at least provided with guiding device (5) in the left and right sides, described
Spout (53) is offered on guiding device (5), the spout (53) is positioned at exhaust fume collecting hood (1) lower section, it is characterised in that：It is 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 into by smoke deflector (3)
Two parts, a part of air-flow is directly entered air inlet (11) by adjacent air intake passage (12) from smoke deflector (3) top, 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 claimed in claim 1, it is characterised in that：The spout (53) towards smoke deflector (3) and
And diagonally downward, the spout (53) is θ, 40 °≤θ≤90 °, the bottom of the guiding device (5) with the angle of vertical direction
With guide face (54), the guide face (54) extends obliquely downward certain distance, again from from spout (53) towards smoke deflector (3)
Extension certain distance is tilted upward towards smoke deflector (3), so that the air-flow that the spout (53) sprays is formed and tilted 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, edge and corresponding guiding device (5) of the smoke deflector (3)
Spout (53) between horizontal range 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
State guide face (54) and intersect at smoke deflector (3) away from the tangent line (L1) of the end of spout (53) and the normal (L2) of smoke deflector (3)
Top；Or the tangent line (L1) of end of the guide face (54) away from spout (53) is put down with the normal (L2) of smoke deflector (3)
OK.
5. top-sucking kitchen ventilator as claimed in claim 2 or claim 3, it is characterised in that：The guiding device (5) also includes source of the gas
The pressure stabilizing cavity (52) that passage (51) is connected with source of the gas passage (51), the spout (53) connects with 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 source of the gas passage (51) enters passes through in 0.1s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621347546.5U CN206291269U (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 |
|---|---|---|---|
| CN201621347546.5U CN206291269U (en) | 2016-12-09 | 2016-12-09 | A kind of top-sucking kitchen ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206291269U true CN206291269U (en) | 2017-06-30 |
Family
ID=59097694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621347546.5U Withdrawn - After Issue CN206291269U (en) | 2016-12-09 | 2016-12-09 | A kind of top-sucking kitchen ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206291269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594828A (en) * | 2016-12-09 | 2017-04-26 | 宁波方太厨具有限公司 | Ceiling type extractor hood |
-
2016
- 2016-12-09 CN CN201621347546.5U patent/CN206291269U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594828A (en) * | 2016-12-09 | 2017-04-26 | 宁波方太厨具有限公司 | Ceiling type extractor hood |
| CN106594828B (en) * | 2016-12-09 | 2019-11-12 | 宁波方太厨具有限公司 | A kind of top-sucking kitchen ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170630 Effective date of abandoning: 20191112 |