CN106594834A - Rotational flow assisting device of extractor hood - Google Patents
Rotational flow assisting device of extractor hood Download PDFInfo
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- CN106594834A CN106594834A CN201611208895.3A CN201611208895A CN106594834A CN 106594834 A CN106594834 A CN 106594834A CN 201611208895 A CN201611208895 A CN 201611208895A CN 106594834 A CN106594834 A CN 106594834A
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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
- F24C15/2028—Removing cooking fumes using an air curtain
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a rotational flow assisting device of an extractor hood. The rotational flow assisting device of the extractor hood is characterized in that the device comprises an annular air outlet device which extends around an axis, the air outlet device comprises an air storage cavity and an air outlet nozzle communicating with the air storage cavity, and the air outlet nozzle is designed to enable airflow jetted by the air outlet device to form a rotational flow field. Through design of the rotational flow assisting device, the jetted airflow can form rotational flow so as to drive upstream lampblack airflow; the rotational flow assisting device is arranged at the upstream position of an air inlet of the extractor hood and matched with a main draught fan in a draught fan hood, so that the distance between the extractor hood and the stove surface is decreased while inward suction force is formed, the smoke gathering and controlling capacities and the anti-interference capacity are improved, and the problem that the extractor hood is poor in oil fume extraction capacity is solved essentially.
Description
Technical field
The present invention relates to the eddy flow auxiliary device of a kind of range hood, especially a kind of range hood.
Background technology
Range hood has become one of indispensable machine for kitchen use equipment in Modern Family, cooks for discharging cooking stove
Oil smoke produced by journey.Generally range hood includes top suction type and side-suction type, and the range hood of top suction type is due to clean and tidy light
Ingeniously, the advantages of taking up room little, and it is in an increasingly wide range of applications.Top-sucking kitchen ventilator generally includes exhaust fume collecting hood, is located at
Blower housing on exhaust fume collecting hood, is provided with centrifugal blower in blower housing.
The range hood of conventional top suction type, it is a kind of as disclosed in the Chinese patent of Application No. 201410704669.9 to inhale
Lampblack absorber, including the exhaust fume collecting hood with inlet scoop, is arranged on the wind cabinet on exhaust fume collecting hood top, is arranged on the wind with spiral case in wind cabinet
Machine, by the effect of blower fan, forms negative pressure so as to outside oil smoke is sucked in wind cabinet while the gas in wind cabinet is discharged,
Realize the purpose of fume-exhausting.
Above-mentioned this top-sucking kitchen ventilator have the advantages that it is classical attractive in appearance, but also because of the restriction of its installation dimension, away from
From requirement for height 650-750cm in kitchen range top face, and it is known with the increase for leaving inlet scoop distance, and flow velocity is decayed in quadratic power,
Therefore very big impact is generated on smoke absorption effect, and anti-interference is poor, need further to improve.
The content of the invention
The technical problem to be solved is the problem existed for above-mentioned prior art, there is provided a kind of to improve oil suction
The eddy flow auxiliary device of the range hood of cigarette efficiency.
The present invention solve the technical scheme that adopted of above-mentioned technical problem for：A kind of eddy flow auxiliary device of range hood,
It is characterized in that：Including the exhaust apparatus of the ring-type extended around an axis, the exhaust apparatus include air storing cavity and the gas storage
The air outlet of chamber connection, the air outlet are arranged so that the air-flow that exhaust apparatus spray forms the flow field of rotation.
Preferably, air storing cavity is limited by the side wall of ring-type, the exhaust apparatus include the ring-type extended around the axis
Lateral wall and ring-type medial wall, the medial wall opposite exterior lateral sides wall closer to axis, the lateral wall and medial wall it
Between form the air storing cavity.
According to an aspect of the present invention, the air outlet includes being arranged on the medial wall multiple, circumferentially-spacedly,
The air outlet extends along the direction of axis, and the first end along airflow direction, the lateral wall and medial wall is located at lateral wall
Closing, the lateral wall and inner side between the upstream at the second end of medial wall, and the lateral wall and the first end of medial wall
Close between second end of wall.
Further, the molding structure of air outlet is, the medial wall includes the dividing plate of multiple arcs, multiple dividing plates along
Around axis circumferentially, the first end in each dividing plate circumference is bent towards axis direction, so as in each dividing plate circumference
The air outlet is limited between first end on second end and adjacent separator circumference.
The formation that is affecting eddy flow to avoid windage too big or flow velocity too little, the opening width of the air outlet is d, 1mm≤d
≤10mm。
For ease of the smoke collecting chamber that oil smoke is downstream inducted into range hood, the medial wall from first end to the second end,
It is increasingly towards axis inclination, the angle of the medial wall and axis is α, 0 °≤α≤30 °.
To improve the flow regime of oil smoke, resistance is reduced, first end wall is being formed with towards under at medial wall
Trip, and to axis incline extend guide face.
According to another aspect of the present invention, tangential air intake of the exhaust apparatus from air storing cavity, the air outlet is around axle
Line extends, including being arranged in the first air outlet of air storing cavity upstream and/or being arranged in second air outlet in air storing cavity downstream, described
First air outlet) air-flow that sprays formed towards upstream eddy flow, and the air-flow that second air outlet sprays is formed towards downstream
Eddy flow, the direction of rotation of two eddy flows is contrary.
Further, it is connected with the first end wall between the lateral wall and the first end of medial wall, the lateral wall and interior
The second end wall is connected between second end of side wall；First end wall at medial wall first end upstream, away from axle
Line direction incline extend a certain distance and form the first outer wall, the medial wall first end upstream, away from axis direction
Incline and extend a certain distance and form the first inwall, between first outer wall and the first inwall, limit first air-out
Mouth；Second end wall at the second end of medial wall downstream, incline towards axis direction and to extend a certain distance and shape
Into the second outer wall, the medial wall the second end downstream, incline towards axis direction and to extend a certain distance and form second
Medial wall, limits second air outlet between second outer wall and the second inwall.
To keep the opening width of air outlet consistent, and to air-flow startup guiding, the effect of combing, in first air outlet
The first distance piece is provided with, is connected with the first inwall and the first outer wall inside and outside first distance piece respectively, described
One distance piece is in tilted layout in the circumferential, towards same direction；The second distance piece is provided with second air outlet, it is described
Be connected with the second inwall and the second outer wall inside and outside second distance piece respectively, second distance piece in the circumferential, direction
Same direction is in tilted layout；The incline direction of first distance piece and the second distance piece is contrary.
To guarantee that air-flow inwardly sprays, the angle between first air outlet and axis is β, 0 °≤β≤90 °；It is described
Angle between second air outlet and axis is γ, 0 °≤γ≤30 °.
Further, for ease of exhaust apparatus air-out, the eddy flow auxiliary device also includes guide duct and accessory fan, institute
State guide duct two ends be respectively communicated with the exhaust apparatus air storing cavity and accessory fan air outlet.
Can ensure from air outlet to spray the uniformity of air-flow, the air storing cavity is in the connectivity part with guide duct to away from wind-guiding
When the direction of pipe extends, sectional area gradually increases.
Compared with prior art, it is an advantage of the current invention that：By designing a kind of eddy flow auxiliary device, the air-flow shape of ejection
Into eddy flow, the oil smoke air-flow of upstream can be driven, be disposed at the air inlet upstream of range hood, with the main air blower in fan shroud
Coordinate, formed under the collective effect of inside suction force, draw in the distance with range pot face, improve cigarette Tobacco Control and anti-interference energy
Power, inherently solves the problems, such as that fume exhaust ability is not good.
Description of the drawings
Fig. 1 is the schematic diagram of range hood one embodiment of the present invention；
Decomposition texture schematic diagrams of the Fig. 2 for the range hood of Fig. 1；
Auxiliary device schematic diagrams of the Fig. 3 for the range hood of Fig. 1；
Horizontal (with axis X vertical) sectional views of the Fig. 4 for the exhaust apparatus of the auxiliary device in Fig. 3；
Close-up schematic views of the Fig. 5 for the sectional view of Fig. 4；
Longitudinal direction (with axis X parallel) schematic cross-sections of the Fig. 6 for the auxiliary device in Fig. 3；
Cross-sectional views of the Fig. 7 for the exhaust apparatus of the auxiliary device in Fig. 3；
Schematic diagrams of the Fig. 8 for the exhaust apparatus of the auxiliary device of second embodiment of the invention；
Schematic diagrams (be inverted) of the Fig. 9 for the exhaust apparatus of the auxiliary device of second embodiment of the invention；
Longitudinal cross-section schematic diagrams of the Figure 10 for the exhaust apparatus of Fig. 8；
Schematic diagrams of the Figure 11 for the hiding medial wall in section of Figure 10；
Schematic diagrams of the Figure 12 for the exhaust apparatus of the auxiliary device of third embodiment of the invention；
Schematic diagrams of the Figure 13 for the exhaust apparatus of the auxiliary device of four embodiment of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment one
Referring to Fig. 1～Fig. 6, a kind of range hood, including exhaust fume collecting hood 1, fan shroud 2 and blower hood 3, set in fan shroud 2
Centrifugal blower is equipped with, and blower hood 3 is arranged on outside fan shroud 2, and interlayer is formed between fan shroud 2 and blower hood 3.For
It is easy to explanation, in this manual, " upstream " refers to the upstream of oil smoke flow path, and " downstream " refers to the downstream of oil smoke flow path.
Air inlet 11 is offered on exhaust fume collecting hood 1, below air inlet 11, i.e. the upstream of air inlet 11 be provided with for improve inhale
The auxiliary device 4 of oil smoke efficiency.Auxiliary device 4 includes exhaust apparatus 41, guide duct 42 and the accessory fan for producing air-flow
43, for air-flow is directed to exhaust apparatus 41 from accessory fan 43, guide duct 42 is guided guide duct 42 by exhaust apparatus 41
Air-flow sprays.
In the present embodiment, auxiliary device 4 is eddy flow auxiliary device, and exhaust apparatus 41 extend around axis X, so as to be formed
Annular shape, oil smoke can pass through from the inner radial of annulus.Alternatively, exhaust apparatus 41 can also be oval ring-type.In this reality
Apply in example, as range hood is top suction type, therefore axis X is to extend in vertical direction.Wherein, the first of exhaust apparatus 41
End (lower end) when that is, oil smoke flows, first passes around exhaust apparatus 41 positioned at the upstream at second end (upper end) of exhaust apparatus 41
First end, then leaves from the second end of exhaust apparatus 41.
Exhaust apparatus 41 include the lateral wall 411 and the medial wall 412 of ring-type of the ring-type extended around axis X, wherein interior
Wall 412 opposite exterior lateral sides wall 411 in side is closer to axis X.With corresponding above, the first end position of lateral wall 411 and medial wall 412
In the upstream at 412 second end of lateral wall 411 and medial wall.Pass through first end between the first end of lateral wall 411 and medial wall 412
Wall 415 connects and closes, and is connected by the second end wall 416 and close between lateral wall 411 and the second end of medial wall 412, by
This, lateral wall 411, medial wall 412, the first end wall 415 and the second end wall 416 form the air storing cavity 413 of ring-type, and oil smoke then may be used
Pass through from the inner side of medial wall 412.Medial wall 412 from first end to the second end, be increasingly towards axis X inclination, medial wall 412 with
The angle of axis X is α, 0 °≤α≤30 °, so that oil smoke is downstream inducted in the air inlet 11 of exhaust fume collecting hood 1.Exhaust apparatus
41 height (distance on the direction parallel with axis X) is h, 20mm≤h≤350mm, lifts fume-exhausting effect so as to both meet
The requirement of rate, and do not affect the attractive in appearance of range hood.
Be formed with air outlet 414 on medial wall 412, air outlet 414 extends along axis X, and with above-mentioned air storing cavity
413 connections.In the present embodiment, air outlet 414 is formed by following modes：Medial wall 412 includes the dividing plate of multiple arcs
4121, above-mentioned multiple dividing plates 4121 are circumferentially arranged (around the direction of axis X), so as to constitute the medial wall 412 of ring-type.Often
First end in 4121 circumference of individual dividing plate is radially-inwardly bent (towards axis X direction), so that each dividing plate 4121 is circumferential
On 4121 circumference of the second end and adjacent separator on first end between limit above-mentioned air outlet 414, i.e., two dividing plates
Air outlet 414 is limited between the apparent surface of 4121 adjacent end portions.Thus, above-mentioned air outlet 414 and the circumference of medial wall 412
Shape has a certain degree, and each air outlet 414 is identical with the 412 circumferential angle for being formed of medial wall.Thus, multiple air outlets 414
The air-flow of blowout has circumferential component and forms the flow field (eddy flow) of rotation.Referring to Fig. 3, the air gas of the blowout of accessory fan 43
Stream is so that, shown in filled arrows, oil smoke air-flow is with shown in hollow arrow.
Air outlet 414 can be with equidistantly distributed, it is also possible to which unequal-interval is distributed.Air outlet 414 has outlet 4143, outlet
4143 for air outlet 414 end, air-flow leaves the position before air outlet 414.The opening width d of air outlet 414, i.e., in outlet
At 4143, the spacing (radially) between the apparent surface of two 4121 adjacent end portions of dividing plate is preferably, 1mm≤d≤10mm.
If the opening width d of air outlet 414 is too small, windage is larger, is unfavorable for forming eddy flow, and if excessive, then flow velocity is less, together
Sample also is unfavorable for forming eddy flow.
First end wall 415 be formed with the medial wall 412 towards axis X incline, and to exhaust apparatus 41 second
The guide face 4151 that end extends, such that it is able to improve the flow regime of oil smoke, reduces resistance.Guide face 4151 can be inclined-plane or
Curved surface.
Guide duct 42 preferably two, compartment of terrain, is arranged symmetrically, and accessory fan 43 is located at outside fan shroud 2 respectively
The left and right sides.Guide duct 42 can be spliced with multistage, it is also possible to be integrated.The first end and exhaust apparatus of each guide duct 42
Air storing cavity 413 in 41 is connected, and the position of connection is located between two air outlets 414.Second end of each guide duct 42 then from
Exhaust fume collecting hood 1 is passed through, the interlayer being upwardly between fan shroud 2 and blower hood 3 and connect with the air outlet of accessory fan 43, this
Plant set-up mode and can also avoid impact of the oil smoke to accessory fan 43.Referring to Fig. 7, air storing cavity 413 is in the company with guide duct 42
Logical place to away from guide duct 42 direction extend when, its sectional area gradually increases, so as to can ensure from air outlet 414 spray air-flow
Uniformity.By the setting of guide duct 42, the air-flow that accessory fan 43 blows out can be directed to 413 interior, Jin Ertong of air storing cavity
Cross air outlet 414 to spray and form eddy flow.The eddy flow is provided to the oil smoke air-flow that the passage from the middle of exhaust apparatus 41 is entered and is cut
Xiang Li, is drawn up spout effect is produced under the collective effect of power in the centrifugal blower (main air blower) in fan shroud 2, so as to draw in
With the distance in range pot face, improve cigarette Tobacco Control and capacity of resisting disturbance, inherently solve top-sucking kitchen ventilator fume-exhausting energy
The not good problem of power.
Exhaust apparatus 41 lowered when can both be and hang fixed, or work, were received when not working upwards, from
And the overall appearance of range hood is neither affected, the effect for extending and being lifted fume-exhausting can be expanded downwards again by negative pressuren zone.For
It is easy to exhaust apparatus 41 to lift, is additionally provided with lowering or hoisting gear 5, lowering or hoisting gear 5 includes the electricity for being arranged on the 2 outer left and right sides of fan shroud
Dynamic push rod 51, and the transmission bracket 52 that is connected between the end of auxiliary device 4 and electric pushrod 51, in the present embodiment,
Electric pushrod 51 is extended downwardly, and transmission bracket 52 is connected to the top of guide duct 42.Thus, when electric pushrod 51 is released downwards
When, one end that transmission bracket 52 is connected with guide duct 42 ramps up, so as to drive exhaust apparatus 41 to move upwards；Work as electric pushrod
51 when drawing in upwards, one end that transmission bracket 52 is connected with guide duct 42 to decline, so as to drive exhaust apparatus 41 to move downward.
Lowering or hoisting gear 5 can automatically control work according to the amount of oil smoke, and it is 100～300mm which drives the scope of the lifting of auxiliary device 4.
Embodiment two
Referring to Fig. 8～Figure 11, in the present embodiment, the difference with embodiment one is, the air-out of exhaust apparatus 41
Mouth extends around axis X, including the first air outlet 4141 of upstream and second air outlet 4142 in downstream is arranged in, so as to shape
Into two eddy flows of different directions, smoke absorption effect is further improved.
Additionally, in the present embodiment, the first end wall 415 is not connected to the first end of medial wall 412, and the first end wall 415 exists
At medial wall 412 first end upstream, incline away from axis X direction and extend a certain distance and form the first outer wall
4144, medial wall 412 likewise, first end upstream, away from axis X direction incline extend a certain distance and form first
Inwall 4145, the first outer wall 4144 are identical with angle with the incline direction of the first inwall 4145, in the first outer wall 4144 and first
Above-mentioned first air outlet 4141 is limited between wall 4145, the first air outlet 4141 is annular in shape, from upstream toward downstream gradually to axle
Line X shrinks.
Likewise, the second end wall 416 is also not connected to the second end of medial wall 412, the second end wall 416 is near medial wall
At 412 second ends downstream, towards axis X direction incline extend a certain distance and form the second outer wall 4146, medial wall 412
The second end downstream, towards axis X direction incline extend a certain distance and form the second medial wall 4147, the second outer wall
4146 is identical with angle with the incline direction of the second inwall 4147, limits between the second outer wall 4146 and the second inwall 4147
The second air outlet 4142 is stated, the first air outlet 4142 is annular in shape, is gradually shunk to axis X from upstream toward downstream.
First air outlet 4141 and the second air outlet 4142 respectively with the air storing cavity between lateral wall 411 and medial wall 412
413 connections.First air outlet 4141 is (parallel with axis X to the spacing in the middle of exhaust apparatus 41 away from the end of the first end wall 415
Direction on distance) for the air outlet 4142 of h1,20mm≤h1≤350mm, second away from the second end wall 416 end to air-out
Spacing (distance on the direction parallel with axis X) in the middle of device 41 be h2,20mm≤h2≤350mm, and h1+h2≤
350mm。
The air-flow of the blowout of accessory fan 43 is tangentially entered air storing cavity 413 by guide duct 42, is obtained by air storing cavity 413
Accelerate to shrinking, enhance the rotatory power of internal gas flow, air-flow receipts again between 413 to two air outlets of air storing cavity
Contracting, flow velocity further lifted, most after the corresponding air outlets of Jing spray, the air velocity of ejection is preferably in 1m/s～10m/
s。
The first distance piece 4171 is provided with first air outlet 4141, respectively with the inside and outside the first distance piece 4171
One inwall 4145 and the first outer wall 4144 connect, so as to the air-flow to spraying from the first air outlet 4141 is oriented to, while
Ensure that 4141 opening width of the first air outlet is consistent.First distance piece 4171 can be equally spaced from arrangement in the circumferential, also may be used
Think unequal-interval ground arranged for interval.First distance piece 4171 is in tilted layout in the circumferential, towards same direction, so that
The air-flow sprayed from the first air outlet 4141 forms upstream eddy flow.The direction of the air-flow sprayed from the first air outlet 4141 is such as
In Fig. 8 shown in arrow A.
The second distance piece 4172 is provided with second air outlet 4142, respectively with the inside and outside the second distance piece 4172
Two inwalls 4147 and the second outer wall 4146 connect, so as to the air-flow to spraying from the second air outlet 4142 is oriented to, while
Ensure that 4142 opening width of the second air outlet is consistent.Second distance piece 4172 can be equally spaced from arrangement in the circumferential, also may be used
Think unequal-interval ground arranged for interval.Second distance piece 4172 is in tilted layout in the circumferential, towards same direction, so that
The air-flow sprayed from the second air outlet 4142 forms eddy flow downstream.First distance piece 4171 and the second distance piece 4172 incline
Tilted direction is contrary.In the direction such as Fig. 8 of the air-flow sprayed from the second air outlet 4142 shown in arrow B.
Angle between first air outlet 4141 and axis X is β, 0 °≤β≤90 °, to avoid towards axis X air-out,
The air curtain of inverted cone is formed below exhaust apparatus 41 and pan between, so as to upset oil smoke air-flow；Second air outlet 4142 and axle
Angle between line X is γ, 0 °≤γ≤30 °.
Embodiment three
Referring to Figure 12, in the present embodiment, the difference with embodiment two is, exhaust apparatus 41 only have formed to
On eddy flow the first air outlet 4141, now the second end wall 416 will connect and close between lateral wall 411 and medial wall 412.
Example IV
Referring to Figure 13, in the present embodiment, the difference with embodiment two is, exhaust apparatus 41 only have formed to
Under eddy flow the second air outlet 4142, now the first end wall 415 will connect and close between lateral wall 411 and medial wall 412.
Claims (13)
1. the eddy flow auxiliary device of a kind of range hood, it is characterised in that：Air-out including the ring-type extended around an axis (X) is filled
Put (41), the exhaust apparatus (41) include air storing cavity (413), the air outlet (414) connected with the air storing cavity (413), institute
State the flow field of the air-flow formation rotation that air outlet (414) is arranged so that exhaust apparatus (41) spray.
2. the eddy flow auxiliary device of range hood as claimed in claim 1, it is characterised in that：The exhaust apparatus (41) include
The lateral wall (411) of the ring-type extended around the axis (X) and the medial wall (412) of ring-type, the medial wall (412) are relatively outer
Side wall (411) forms the air storing cavity (413) between the lateral wall (411) and medial wall (412) closer to axis (X).
3. the eddy flow auxiliary device of range hood as claimed in claim 2, it is characterised in that：The air outlet (414) includes
It is arranged on the medial wall (412) multiple, circumferentially-spacedly, the air outlet (414) extends along the direction of axis (X),
Lateral wall (411) and medial wall (412) the is located at along the first end of airflow direction, the lateral wall (411) and medial wall (412)
Between the upstream at two ends, and the first end of the lateral wall (411) and medial wall (412) close, the lateral wall (411) and
Close between second end of medial wall (412).
4. the eddy flow auxiliary device of range hood as claimed in claim 3, it is characterised in that：The medial wall (412) includes
The dividing plate (4121) of multiple arcs, multiple dividing plates (4121) are along around axis (X), circumferentially, each dividing plate (4121) is circumferential
On first end towards axis (X) direction bend, so as to the second end in each dividing plate (4121) circumference and adjacent separator
(4121) air outlet (414) is limited between the first end in circumference.
5. the eddy flow auxiliary device of range hood as claimed in claim 3, it is characterised in that：The air outlet (414)
Aperture is d, 1mm≤d≤10mm.
6. the eddy flow auxiliary device of range hood as claimed in claim 3, it is characterised in that：The medial wall (412) is from
One end to the second end, be increasingly towards axis (X) inclination, the angle of the medial wall (412) and axis (X) is α, 0 °≤α≤
30°。
7. the eddy flow auxiliary device of range hood as claimed in claim 3, it is characterised in that：First end wall (415) exists
The guide face (4151) for extending is formed with towards downstream and is inclined to axis (X) near medial wall (412) place.
8. the eddy flow auxiliary device of range hood as claimed in claim 2, it is characterised in that：The exhaust apparatus (41) are from storage
The tangential air intake of air cavity (413), the air outlet extend around axis (X), go out including be arranged in air storing cavity (413) upstream first
Tuyere (4141) and/or second air outlet (4142) in air storing cavity (413) downstream is arranged in, the first air outlet (4141) spray
The air-flow for going out is formed towards upstream eddy flow, and the air-flow that second air outlet (4142) sprays forms the eddy flow towards downstream,
The direction of rotation of two eddy flows is contrary.
9. the eddy flow auxiliary device of range hood as claimed in claim 8, it is characterised in that：The lateral wall (411) and interior
The second end of the first end wall (415), the lateral wall (411) and medial wall (412) is connected between the first end of side wall (412)
Between be connected with the second end wall (416)；First end wall (415) at medial wall (412) first end upstream, away from
Axis (X) direction incline extend a certain distance and form the first outer wall (4144), the medial wall (412) in first end upwards
Trip, away from axis (X) direction incline extend a certain distance and form the first inwall (4145), first outer wall (4144) and
First air outlet (4141) is limited between first inwall (4145)；Second end wall (416) is near medial wall
At (412) second ends downstream, towards axis (X) direction incline extend a certain distance and form the second outer wall (4146), institute
State medial wall (412) the second end downstream, towards axis (X) direction incline extend a certain distance and form the second medial wall
(4147) second air outlet (4142) is limited between second outer wall (4146) and the second inwall (4147),.
10. the eddy flow auxiliary device of range hood as claimed in claim 9, it is characterised in that：First air outlet
(4141) in be provided with the first distance piece (4171), inside and outside first distance piece (4171) respectively with the first inwall
(4145) and the first outer wall (4144) connects, and first distance piece (4171) inclines cloth in the circumferential, towards same direction
Put；It is provided with the second distance piece (4172) in second air outlet (4142), inside and outside the two of second distance piece (4172)
Side is connected with the second inwall (4147) and the second outer wall (4146) respectively, second distance piece (4172) in the circumferential, direction
Same direction is in tilted layout；The incline direction of first distance piece (4171) and the second distance piece (4172) is contrary.
The eddy flow auxiliary device of 11. range hoods as claimed in claim 9, it is characterised in that：First air outlet
(4141) angle and between axis (X) is β, 0 °≤β≤90 °；Folder between second air outlet (4142) and axis (X)
Angle is γ, 0 °≤γ≤30 °.
The eddy flow auxiliary device of 12. range hoods as any one of claim 1～11, it is characterised in that：The rotation
Stream auxiliary device also includes guide duct (42) and accessory fan (43), the two ends of the guide duct (42) be respectively communicated with it is described go out
The air outlet of the air storing cavity (413) and accessory fan (43) of wind apparatus (41).
The eddy flow auxiliary device of 13. range hoods as claimed in claim 12, it is characterised in that：The air storing cavity (413) exists
With the connectivity part of guide duct (42) to the direction away from guide duct (42) extend when, sectional area gradually increases.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208895.3A CN106594834B (en) | 2016-12-23 | 2016-12-23 | A kind of eddy flow auxiliary device of range hood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208895.3A CN106594834B (en) | 2016-12-23 | 2016-12-23 | A kind of eddy flow auxiliary device of range hood |
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| CN106594834A true CN106594834A (en) | 2017-04-26 |
| CN106594834B CN106594834B (en) | 2019-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611208895.3A Active CN106594834B (en) | 2016-12-23 | 2016-12-23 | A kind of eddy flow auxiliary device of range hood |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529907A (en) * | 2019-09-29 | 2019-12-03 | 上海纯米电子科技有限公司 | Kitchen fume extracting device |
| CN110529909A (en) * | 2019-09-29 | 2019-12-03 | 上海纯米电子科技有限公司 | Cooking fume control equipment |
| CN110594817A (en) * | 2019-09-09 | 2019-12-20 | 华帝股份有限公司 | Oil smoke whirl device and range hood |
| CN111735093A (en) * | 2020-07-23 | 2020-10-02 | 三峡大学 | Multi-surface air curtain range hood of energy-saving stove and oil fume extraction method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019220295A1 (en) * | 2019-12-19 | 2021-06-24 | BSH Hausgeräte GmbH | Creation of an air curtain to improve the extraction of vapor with extractor hoods |
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| EP2088377A2 (en) * | 2006-07-27 | 2009-08-12 | Electrolux Professional S.P.A. | Improvement in the ventilation arrangement of a fume extractor hood |
| CN102265093A (en) * | 2008-12-10 | 2011-11-30 | 伊莱克斯家用产品股份有限公司 | Suction hood |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594817A (en) * | 2019-09-09 | 2019-12-20 | 华帝股份有限公司 | Oil smoke whirl device and range hood |
| CN110529907A (en) * | 2019-09-29 | 2019-12-03 | 上海纯米电子科技有限公司 | Kitchen fume extracting device |
| CN110529909A (en) * | 2019-09-29 | 2019-12-03 | 上海纯米电子科技有限公司 | Cooking fume control equipment |
| CN111735093A (en) * | 2020-07-23 | 2020-10-02 | 三峡大学 | Multi-surface air curtain range hood of energy-saving stove and oil fume extraction method |
| CN111735093B (en) * | 2020-07-23 | 2022-07-15 | 三峡大学 | Multi-surface air curtain range hood of energy-saving stove and oil fume extraction method |
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| CN106594834B (en) | 2019-08-23 |
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