CN106594833B - A kind of injection auxiliary device of range hood - Google Patents
A kind of injection auxiliary device of range hood Download PDFInfo
- Publication number
- CN106594833B CN106594833B CN201611208889.8A CN201611208889A CN106594833B CN 106594833 B CN106594833 B CN 106594833B CN 201611208889 A CN201611208889 A CN 201611208889A CN 106594833 B CN106594833 B CN 106594833B
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- China
- Prior art keywords
- air
- wall
- axis
- exhaust apparatus
- range hood
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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 injection auxiliary devices of range hood, it is characterized by comprising the exhaust apparatus extended around an axis, the air outlet that the exhaust apparatus includes air storing cavity, is connected to the air storing cavity, along airflow direction, the air outlet is formed in the end that the exhaust apparatus is located relatively at upstream, the air outlet has outlet, the outlet is tilted towards downstream and to axis, so that the air-flow that exhaust apparatus sprays is formed by upstream toward downstream, towards the inclined Ejection flow field of axis.By designing a kind of injection auxiliary device, the air-flow of ejection forms flow type pump with injection, the smoke collecting chamber that surrounding oil smoke air-flow flows to range hood together can be carried secretly, make the air pressure in exhaust apparatus downstream that can reduce and generate barometric gradient simultaneously, to guide oil smoke air-flow much below that injection air-flow is added, it is disposed at the air inlet upstream of range hood, is cooperated with the main air blower in fan shroud, it draws at a distance from range pot face, improves cigarette tobacco control and anti-interference ability.
Description
Technical field
The present invention relates to a kind of range hood, the injection auxiliary device of especially a kind of range hood.
Background technique
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family, cooks for cooking stove to be discharged
Generated oil smoke in journey.Usual 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 that occupying little space, 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 equipped with centrifugal blower in blower housing.
The range hood of common top suction type, a kind of suction as disclosed in the Chinese patent application No. is 201410704669.9
Kitchen ventilator, the exhaust fume collecting hood including having air inlet are arranged in the wind cabinet on exhaust fume collecting hood top, the wind for having spiral case in wind cabinet are arranged in
Machine, forms negative pressure by the effect of blower, while the gas in wind cabinet is discharged to by external oil smoke sucking wind cabinet,
Realize the purpose of fume-exhausting.
Above-mentioned this top-sucking kitchen ventilator has many advantages, such as classical beauty, but also because of the limitation of its installation dimension, away from
Requirement for height 650-750cm from hearth face, and it is known with the increase for leaving air inlet distance, and flow velocity is decayed in quadratic power,
Therefore very big influence is produced on smoke absorption effect, and anti-interference is poor, need to be further improved.
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 injection auxiliary device of the range hood of cigarette efficiency.
The technical scheme of the invention to solve the technical problem is: a kind of injection auxiliary device of range hood,
It is characterized by comprising the exhaust apparatus extended around an axis, the exhaust apparatus includes air storing cavity, is connected to the air storing cavity
Air outlet, along airflow direction, the air outlet is formed in the end that the exhaust apparatus is located relatively at upstream, the air outlet
With outlet, it is described outlet towards downstream and to axis tilt so that exhaust apparatus spray air-flow formed from upstream to
Downstream, towards the inclined Ejection flow field of axis.
Air-flow to avoid the air outlet from exhaust apparatus from ejecting flows outward to the direction far from axis X, and final
Cannot be introduced into the smoke collecting chamber of range hood, the angle between the outlet of the air outlet and the vertical direction of axis is δ, 0 °≤δ
≤90°。
Preferably, air storing cavity is limited by spaced apart side wall, the exhaust apparatus includes extending around the axis
Lateral wall and inner sidewall, the inner sidewall opposite exterior lateral sides wall is closer to axis, the first end position of the lateral wall and inner sidewall
The air storing cavity is formed between the upstream of lateral wall and inner sidewall second end, the lateral wall and inner sidewall.
Further, the molding structure of air outlet is to be connected with first between the lateral wall and the first end of inner sidewall
End wall, first end wall include the outer end wall for being bent extension towards axis, with certain radian by the first end of lateral wall,
And the inner end wall of extension is bent far from axis, with certain radian by the first end of inner sidewall, the outer end wall is located at interior
The upstream of end wall limits above-mentioned air outlet between the outer end wall and inner end wall.
It is flowed outward for the air-flow that the air outlet further avoided from exhaust apparatus ejects to the direction far from axis X,
And finally cannot be introduced into the smoke collecting chamber of range hood, the inner sidewall from first end to second end, be increasingly towards axis inclination, incline
Oblique angle be ζ, 0 °≤ζ≤90 °.
To play the role of water conservancy diversion by air-flow to out of exhaust apparatus, between the lateral wall and the second end of inner sidewall
It is connected with the second end wall, the lateral wall second end is located at the downstream of inner sidewall second end, and second end wall is by inner sidewall
The second end of the outside side wall of second end is increasingly towards axis inclination.
Preferably, the inclined angle of the second end wall relative axis be θ, 0 °≤θ≤ζ.
Windage is too big or flow velocity is too small and influences the formation of flow type pump with injection to avoid, and the opening width of the air outlet is d, 1mm
≤d≤10mm。
Preferably, the exhaust apparatus is annular in shape or oval ring-type or two spaced apart segmental arcs or two
Spaced apart straightway.
Further, for convenient for exhaust apparatus outlet air, the injection auxiliary device further includes guide duct and accessory fan, institute
The both ends for stating guide duct are respectively communicated with the air storing cavity of the exhaust apparatus and the air outlet of accessory fan.
Compared with the prior art, the advantages of the present invention are as follows: by designing a kind of injection auxiliary device, the air-flow shape of ejection
At flow type pump with injection, surrounding oil smoke air-flow can be carried secretly and flow to the smoke collecting chamber of range hood together, while make the gas in exhaust apparatus downstream
Pressure can reduce and generate barometric gradient, to guide oil smoke air-flow much below that injection air-flow is added, be disposed at oil suction
The air inlet upstream of smoke machine cooperates with the main air blower in fan shroud, draws at a distance from range pot face, improves cigarette tobacco control and resists
Interference performance inherently solves the problems, such as that fume exhaust ability is bad.
Detailed description of the invention
Fig. 1 is the schematic diagram of range hood one embodiment of the invention；
Fig. 2 is the auxiliary device schematic diagram of Fig. 1 range hood；
Fig. 3 is the partial sectional view of the range hood of Fig. 1；
Fig. 4 is partial cross section's enlarged diagram of the auxiliary device in Fig. 2；
The schematic diagram of second embodiment of range hood Fig. 5 of the invention；
Fig. 6 is the auxiliary device schematic diagram of the range hood of Fig. 5；
Fig. 7 is the cross-sectional view of the auxiliary device in Fig. 6；
Fig. 8 is the partial schematic diagram of the auxiliary device of range hood third embodiment of the invention；
Fig. 9 is the cross-sectional view of the auxiliary device in Fig. 8.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Embodiment one
Referring to figs. 1 to 4, a kind of range hood, including exhaust fume collecting hood 1 and fan shroud 2 are provided with centrifugation wind in fan shroud 2
Machine.For purposes of illustration only, in the present specification, " upstream " refers to the upstream of oil smoke flow path, " downstream " refers to oil smoke flow path
Downstream.
Offer air inlet 11 on exhaust fume collecting hood 1,11 lower section of air inlet, i.e. air inlet 11 upstream be provided with for improving suction
The auxiliary device 4 of oil smoke efficiency.Auxiliary device 4 includes exhaust apparatus 41, guide duct 42 and the accessory fan for generating air-flow
43, guide duct 42 is used to air-flow being directed to exhaust apparatus 41 from accessory fan 43, and exhaust apparatus 41 guides guide duct 42
Air-flow sprays.
In the present embodiment, auxiliary device 4 is injection auxiliary device, and exhaust apparatus 41 extends around axis X, to be formed
Annular shape, oil smoke can pass through from the inner radial of annulus.Alternatively, exhaust apparatus 41 or oval ring-type.In this reality
It applies in example, since range hood is top suction type, axis X is to extend in vertical direction.Wherein, the first of exhaust apparatus 41
End (lower end) is located at the upstream of the second end (upper end) of exhaust apparatus 41 and first passes around exhaust apparatus 41 when that is, oil smoke flows
First end is then left from the second end of exhaust apparatus 41.
Exhaust apparatus 41 includes the cricoid lateral wall 411 and cricoid inner sidewall 412 for surrounding axis X extension, wherein in
412 opposite exterior lateral sides wall 411 of side wall is closer to axis X.With it is above correspondingly, lateral wall 411 and inner sidewall 412 first end position
In the upstream of 412 second end of lateral wall 411 and inner sidewall.First is connected between lateral wall 411 and the first end of inner sidewall 412
End wall 415 is connected with the second end wall 416, as a result, lateral wall 411, inside between lateral wall 411 and the second end of inner sidewall 412
Cricoid air storing cavity 413 is formed between wall 412, the first end wall 415 and the second end wall 416, and oil smoke then can be from inner sidewall 412
Inside passes through.
The first end of exhaust apparatus 41 is formed with air outlet 414.In the present embodiment, the first end wall 415 includes by outside
The first end of wall 411 is bent the outer end wall 4152 of extension towards axis X, with certain radian, and by the first of inner sidewall 412
The inner end wall 4153 held separate axis X, with certain radian be bent extension, outer end wall 4152 are located at the upper of inner end wall 4153
Trip, and outer end wall 4152 and inner end wall 4153 are recessed towards upstream.Outer end wall 4152 and inner end wall 4153 are opposite as a result,
Above-mentioned air outlet 414 is limited between surface, air outlet 414 is in circumferential weld shape.
Air outlet 414 has outlet 4143, and outlet 4143 is the end of air outlet 414, before air-flow leaves air outlet 414
Position.The opening width d of air outlet 414, i.e., outlet 4143 at, outer end wall 4152, inner end wall 4153 close to axis X opposite table
Spacing (radially) between face is preferably, 1mm≤d≤10mm.If the opening width d of air outlet 414 is too small, windage compared with
Greatly, it is unfavorable for forming flow type pump with injection, and if excessive, flow velocity is smaller, equally also is unfavorable for forming flow type pump with injection.
The outlet 4143 of air outlet 414 and vertical direction (being horizontal direction in the present embodiment) inclination of axis X and
Towards the second end of exhaust apparatus 41.411 second end of lateral wall is located at the downstream of 412 second end of inner sidewall, the second end wall 416 by
The second end of the outside side wall 411 of the second end of inner sidewall 412 is increasingly towards axis X inclination, so as to play the work of water conservancy diversion
With.
Air-flow to avoid the air outlet 414 from exhaust apparatus 41 from ejecting flows outward to the direction far from axis X, and
Finally cannot be introduced into the air inlet 11 of exhaust fume collecting hood 1, the angle between outlet 4143 and the vertical direction of axis X is δ, 0 °≤δ≤
90°；Inner sidewall 412 from first end to second end, be increasingly towards axis X inclination, inclined angle be ζ, 0 °≤ζ≤90 °；Second
The second end of the outside side wall 411 of the second end of end wall 416 from inner sidewall 412 is increasingly towards axis X inclination, and inclined angle is
θ, 0 °≤θ≤ζ.The height of exhaust apparatus 41 is h, 20mm≤h≤350mm, and the height of inner sidewall 412 is h3,5mm≤h3≤
200mm。
Spacer can be set in air outlet 414, to keep the opening width of air outlet 414 consistent, while to ejection
Air-flow plays certain guiding and combing effect.
Guide duct 42 is preferably two, and compartment of terrain is arranged symmetrically, and accessory fan 43 is located at outside fan shroud 2
The left and right sides.Guide duct 42 can be spliced with multistage, or one.The first end and exhaust apparatus of each guide duct 42
Air storing cavity 413 in 41 is connected to, and the position of connection is located between two air outlets 414.The second end of each guide duct 42 then from
Exhaust fume collecting hood 1 passes through, and is connected to upwards with the air outlet of accessory fan 43.
By accessory fan 43 by air draught from air outlet 414 to blow out at a high speed, formed towards axis X inclination and court
To the injection air-flow in 41 second end of exhaust apparatus (downstream of oil smoke flow path), (preferred, the flow velocity of injection air-flow is preferred
1m/s~10m/s, more preferably 5m/s or so), entrainment surrounding oil smoke air-flow is upward together, simultaneously because cooking fume flows to
On, the air pressure of 41 lower section of exhaust apparatus can reduce and generate barometric gradient, draw so that oil smoke air-flow much below be guided to be added
It emanates stream.Referring to Fig. 3, the air draught that accessory fan 43 is blown out is with shown in filled arrows, oil smoke air-flow is shown in hollow arrow.
In actual use, auxiliary device can be used alone, can also use in groups, and overall dimensions are no more than oil suction
Smoke machine shrouds profile.
Embodiment two
Referring to Fig. 5~Fig. 7, in the present embodiment, the difference with embodiment two is, exhaust apparatus 41 is not complete circle
Ring-type, and it is two segmental arcs for being spaced, being arranged symmetrically, a guide duct 42 is connected on each segmental arc.
Embodiment three
Referring to Fig. 8 and Fig. 9, in the present embodiment, the difference with embodiment three is, each Duan Buwei of exhaust apparatus 41
Segmental arc, and it is hollow straightway, a guide duct 42 is connected on each straightway.
Claims (7)
1. a kind of injection auxiliary device of range hood, it is characterised in that: including the exhaust apparatus extended around an axis (X)
(41), the exhaust apparatus (41) includes air storing cavity (413), the air outlet (414) being connected to the air storing cavity (413), along gas
Direction is flowed, the air outlet (414) is formed in the end that the exhaust apparatus (41) is located relatively at upstream, the air outlet
(414) there is outlet (4143), the outlet (4143) tilts towards downstream and to axis (X), so that exhaust apparatus
(41) air-flow sprayed is formed by upstream toward downstream, towards axis (X) inclined Ejection flow field, and the air outlet (414) goes out
Angle between mouthful (4143) and the vertical direction of axis (X) is δ, 0 °≤δ≤90 °；The exhaust apparatus (41) includes around institute
The lateral wall (411) and inner sidewall (412) of axis (X) extension are stated, inner sidewall (412) the opposite exterior lateral sides wall (411) is more leaned on
Axial ray (X) is connected with the first end wall (415) between the lateral wall (411) and the first end of inner sidewall (412), and described
One end wall (415) includes the outer end for being bent extension towards axis (X), with certain radian by the first end of lateral wall (411)
Wall (4152), and it is bent far from axis (X), with certain radian by the first end of inner sidewall (412) inner end wall of extension
(4153), the outer end wall (4152) is located at the upstream of inner end wall (4153), the outer end wall (4152) and inner end wall (4153)
Between limit above-mentioned air outlet (414).
2. the injection auxiliary device of range hood as described in claim 1, it is characterised in that: the lateral wall (411) and interior
The first end of side wall (412) is located at the upstream of lateral wall (411) and inner sidewall (412) second end, the lateral wall (411) and interior
The air storing cavity (413) are formed between side wall (412).
3. the injection auxiliary device of range hood as claimed in claim 2, it is characterised in that: the inner sidewall (412) is by
One end to second end, be increasingly towards axis (X) inclination, inclined angle be ζ, 0 °≤ζ≤90 °.
4. the injection auxiliary device of range hood as claimed in claim 3, it is characterised in that: the lateral wall (411) and interior
It is connected between the second end of side wall (412) the second end wall (416), lateral wall (411) second end is located at inner sidewall (412)
The downstream of second end, second end wall (416) by inner sidewall (411) second end (412) outward side wall (411) second
It holds, be increasingly towards axis (X) inclination.
5. the injection auxiliary device of range hood as claimed in claim 4, it is characterised in that: the second end wall (416) phase
To axis (X) inclined angle be θ, 0 °≤θ≤ζ.
6. such as the injection auxiliary device of range hood according to any one of claims 1 to 5, it is characterised in that: the outlet air
The opening width of mouth (414) is d, 1mm≤d≤10mm.
7. such as the injection auxiliary device of range hood according to any one of claims 1 to 5, it is characterised in that: the injection
Auxiliary device further includes guide duct (42) and accessory fan (43), and the both ends of the guide duct (42) are respectively communicated with the outlet air
The air storing cavity (413) of device (41) and the air outlet of accessory fan (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208889.8A CN106594833B (en) | 2016-12-23 | 2016-12-23 | A kind of injection auxiliary device of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611208889.8A CN106594833B (en) | 2016-12-23 | 2016-12-23 | A kind of injection auxiliary device of range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594833A CN106594833A (en) | 2017-04-26 |
| CN106594833B true CN106594833B (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611208889.8A Active CN106594833B (en) | 2016-12-23 | 2016-12-23 | A kind of injection auxiliary device of range hood |
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| Country | Link |
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| CN (1) | CN106594833B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388668A (en) * | 2018-04-17 | 2019-10-29 | 宁波方太厨具有限公司 | A kind of range hood |
| CN110186084A (en) * | 2019-05-16 | 2019-08-30 | 浙江工业大学 | A kind of upper discharging type oil smoke machine inlet end air draught auxiliary device |
| CN110186085A (en) * | 2019-05-16 | 2019-08-30 | 浙江工业大学 | Kitchen ventilator with air inlet auxiliary device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114649A (en) * | 1987-10-26 | 1989-05-08 | Matsushita Electric Works Ltd | Smoke disposal device for cooking |
| CN2359601Y (en) * | 1998-11-30 | 2000-01-19 | 林钧浩 | Blowing air purification machine |
| US6044838A (en) * | 1999-06-05 | 2000-04-04 | Deng; David | Fume exhaust apparatus for cooking stoves |
| CN101038103A (en) * | 2006-03-17 | 2007-09-19 | 安薪实业有限公司 | Auxiliary smoke discharging structure and method thereof |
| CN102265093A (en) * | 2008-12-10 | 2011-11-30 | 伊莱克斯家用产品股份有限公司 | Suction hood |
| CN103486638A (en) * | 2013-10-08 | 2014-01-01 | 罗琮贵 | Silent rotational-flow, full-absorption and energy-saving range hood with function of locking fume and rotational-flow fume-locking and fume-sending ring |
| CN103673009A (en) * | 2013-11-22 | 2014-03-26 | 张一凡 | Tornado type range hood |
| CN204268537U (en) * | 2014-11-18 | 2015-04-15 | 宁波方太厨具有限公司 | A kind of range hood |
| CN206291285U (en) * | 2016-12-23 | 2017-06-30 | 宁波方太厨具有限公司 | A kind of injection servicing unit of range hood |
-
2016
- 2016-12-23 CN CN201611208889.8A patent/CN106594833B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01114649A (en) * | 1987-10-26 | 1989-05-08 | Matsushita Electric Works Ltd | Smoke disposal device for cooking |
| CN2359601Y (en) * | 1998-11-30 | 2000-01-19 | 林钧浩 | Blowing air purification machine |
| US6044838A (en) * | 1999-06-05 | 2000-04-04 | Deng; David | Fume exhaust apparatus for cooking stoves |
| CN101038103A (en) * | 2006-03-17 | 2007-09-19 | 安薪实业有限公司 | Auxiliary smoke discharging structure and method thereof |
| CN102265093A (en) * | 2008-12-10 | 2011-11-30 | 伊莱克斯家用产品股份有限公司 | Suction hood |
| CN103486638A (en) * | 2013-10-08 | 2014-01-01 | 罗琮贵 | Silent rotational-flow, full-absorption and energy-saving range hood with function of locking fume and rotational-flow fume-locking and fume-sending ring |
| CN103673009A (en) * | 2013-11-22 | 2014-03-26 | 张一凡 | Tornado type range hood |
| CN204268537U (en) * | 2014-11-18 | 2015-04-15 | 宁波方太厨具有限公司 | A kind of range hood |
| CN206291285U (en) * | 2016-12-23 | 2017-06-30 | 宁波方太厨具有限公司 | A kind of injection servicing unit of range hood |
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| CN106594833A (en) | 2017-04-26 |
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