CN207471639U - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
- Publication number
- CN207471639U CN207471639U CN201721613229.8U CN201721613229U CN207471639U CN 207471639 U CN207471639 U CN 207471639U CN 201721613229 U CN201721613229 U CN 201721613229U CN 207471639 U CN207471639 U CN 207471639U
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- eddy flow
- column
- auxiliary device
- range hood
- smoke deflector
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Abstract
The utility model discloses a kind of range hood, including exhaust fume collecting hood and eddy flow auxiliary device, the eddy flow auxiliary device includes the exhaust apparatus for blowing out induction eddy flow, on oil smoke flow path, the exhaust apparatus be located at exhaust fume collecting hood upstream, it is characterised in that：The bottom of the eddy flow auxiliary device is provided with smoke deflector, and the first air inlet hole of connection corresponding with inside eddy flow auxiliary device is offered on the smoke deflector.Using poly- acceleration principle is revolved, extend downwardly negative pressure center, while borrow one block of smoke deflector guiding oil smoke and enter central negative pressure region, compensate for may caused by the deficiency escaped due to oil smoke enters induction eddy flow.
Description
Technical field
The utility model is related to machine for kitchen uses, especially range hood.
Background technology
Range hood has become one of machine for kitchen use equipment indispensable in Modern Family, is cooked for discharging cooking stove
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 carrying inlet scoop are arranged on the wind cabinet on exhaust fume collecting hood top, are arranged on the interior wind for carrying spiral case of wind cabinet
Machine by the effect of wind turbine, forms negative pressure so as to which external 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 has many advantages, such as classical beauty, but also because of the limitation of its installation dimension, away from
650~750cm of requirement for height from hearth face, and it is known with the increase for leaving inlet scoop distance, and flow velocity is decayed in quadratic power,
Therefore very big influence is produced on smoke absorption effect, and anti-interference is poor.
For this purpose, the applicant improves, a kind of suction as disclosed in the Chinese patent application No. is 201610873783.3
Kitchen ventilator, including fan shroud and the main air blower being arranged in fan shroud, the air inlet mouth down of main air blower, main air blower described in face
Eddy flow bucket is provided with below air inlet, eddy flow bucket includes upper and lower opening and in hollow staving, at least two first auxiliary wind
Machine and hollow blowing column corresponding with the first accessory fan, offer on the side wall that is located in the staving of blowing column to
The angle phase that a few blowhole, the direction of each blowhole on column of drying and the tangential direction of staving side wall wall surface are formed
Together so that swirling eddy is collectively formed in the air-flow of blowing column blowout；For another example application No. is 201611207875.4 Chinese patent
A kind of disclosed range hood including exhaust fume collecting hood and the interior fan shroud for setting wind turbine, offers air inlet, along air-flow side on exhaust fume collecting hood
To the upstream of air inlet is provided with auxiliary device, and auxiliary device includes the exhaust apparatus extended around an axis, and exhaust apparatus includes
Air storing cavity, the air outlet connected with air storing cavity, air outlet are arranged so that the air-flow that exhaust apparatus sprays forms the flow field of rotation.
By setting swirl-flow devices in the upstream of air inlet, the centrifugal blower in fan shroud is drawn up the common work of power
Under so that the negative pressuren zone of range hood extends downwardly, and accelerates the speed that is drawn up of soot gas, improve cigarette tobacco control and
Antijamming capability.But the speed of oil smoke ascension is quickly, eddy flow negative pressure central area is smaller, and oil smoke may be caused to flee from rotation gather qi together
Stream, it is uncontrollable and escape, therefore need to be further improved.
Utility model content
Technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing a kind of raising
The range hood of smoke absorption effect.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of range hood, including exhaust fume collecting hood
With eddy flow auxiliary device, the eddy flow auxiliary device includes the exhaust apparatus for blowing out induction eddy flow, in oil smoke flow path
Upper, described exhaust apparatus is located at exhaust fume collecting hood upstream, it is characterised in that：The bottom of the eddy flow auxiliary device is provided with smoke deflector,
The first air inlet hole of connection corresponding with inside eddy flow auxiliary device is offered on the smoke deflector.
Further, in order to preferably guide oil smoke air-flow, on the smoke deflector, downwardly convex from the position of the first air inlet hole
Go out and be formed with boss, multiple second air inlet holes are offered on the side of the boss.
Preferably, the boss is in up big and down small conical butt.
Preferably, the exhaust apparatus is arranged in the first air inlet of smoke deflector at least three blowing columns and compartment of terrain
Around hole, at least one blowhole is offered on the side wall of the blowing column, the direction setting of each blowhole on column of drying
Induction eddy flow is collectively formed in the air-flow of blowing column blowout is caused.
Preferably, the eddy flow auxiliary device further includes accessory fan corresponding with each blowing column, and each column of drying exists
Extend on vertical direction, each column upper end opening and in hollow, the upper end of each column of drying and corresponding accessory fan of drying
Air outlet connection, bottom are then connected to smoke deflector.
Preferably, the accessory fan is Small Centrifugal Fan.
In order to meet the needs of use environment, the eddy flow auxiliary device further includes to drive accessory fan and blowing column
The driving mechanism of lifting.
Preferably, the driving mechanism is electric pushrod.
Compared with prior art, the utility model has the advantage of：Using poly- acceleration principle is revolved, make negative pressure center to downward
Stretch, while borrow one piece of smoke deflector guiding oil smoke and enter central negative pressure region, compensate for may caused by because oil smoke enters induction
Eddy flow and the deficiency escaped.
Description of the drawings
Fig. 1 is the schematic diagram of range hood one embodiment of the utility model；
Fig. 2 is the eddy flow auxiliary device of range hood of the utility model and smoke deflector schematic diagram；
Fig. 3 is the smoke deflector schematic diagram of second embodiment of range hood of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Embodiment one
Referring to Fig. 1 and Fig. 2, a kind of range hood, including exhaust fume collecting hood 1, the cabinet 2 being arranged on above exhaust fume collecting hood 1, positioned at collection
The smoke deflector 3 and the eddy flow auxiliary device 4 between exhaust fume collecting hood 1 and smoke deflector 3 of 1 lower section of petticoat pipe.For purposes of illustration only,
In this specification, " upstream " refers to the upstream of oil smoke flow path, and " downstream " refers to the downstream of oil smoke flow path.
Offer air inlet (not shown) on exhaust fume collecting hood 1, below air inlet, i.e. the upstream of air inlet is provided with to improve
The eddy flow auxiliary device 4 of fume-exhausting efficiency.Smoke deflector 3 is then arranged on the bottom of eddy flow auxiliary device 4, is offered on smoke deflector 3
First air inlet hole 31, it is preferred that the first air inlet hole 31 is opened in the centre of smoke deflector 3, for the inside with eddy flow auxiliary device 4
It corresponds to and connects.
Eddy flow auxiliary device 4 include at least two accessory fans 41 and with 41 corresponding exhaust apparatus of accessory fan,
In the present embodiment, exhaust apparatus is blowing column 42, and blowing column 42 is located at the upstream of the air inlet of exhaust fume collecting hood 1.Blowing column 42 is worn
It is connect to 1 top of exhaust fume collecting hood with accessory fan 41, accessory fan 41 is supplied to blowing column 42 to blow out after surrounding air is sucked
Eddy flow is induced to be formed.Accessory fan 41 can be fixedly connected with exhaust fume collecting hood 1, can also be flexibly connected.
In the present embodiment, to realize preferably uniform air-supply effect, accessory fan 41 and blowing column 42 are respectively three
A, blowing column 42 is equably, compartment of terrain is arranged in around the first air inlet hole 31 of smoke deflector 3.Blowing 42 upper end opening of column simultaneously be in
Hollow, the upper end of blowing column 42 is connected with the air outlet of accessory fan 41, and bottom is then connected to smoke deflector 3.Column 42 of drying is preferred
, it extends in vertical direction.At least one blowhole 421 is offered on the side wall of blowing column 42, blowhole 421 is so that blowing
42 inside and outside connection of column, and the direction of blowhole 421 is arranged so that the air-flow of the blowing blowout of column 42 is collectively formed and lures
Lead eddy flow.Preferably, blowhole 421 is two or more, along the arranged for interval in the vertical direction of column 42 of drying.Preferably,
Accessory fan 41 is Small Centrifugal Fan.
It is blown by three accessory fans 41 to blowing column 42, then air-flow is sprayed through the blowhole 421 on column 42 of drying,
So as to form induction eddy flow, central negative pressure is moved down, referring to shown in hollow arrow in Fig. 2, as represent induction eddy flow.The program
Four uniformly distributed blowing columns 42 can also be used to realize.
Eddy flow auxiliary device 4 further includes driving mechanism 43, and in the present embodiment, driving mechanism 43 uses electric pushrod, with
Accessory fan 41 connects, and so as to realize the lifting of accessory fan 41 and column 42 of drying by electric pushrod, meets use environment
With the demand of function.
By using one piece of smoke deflector being arranged under eddy flow auxiliary device 43, slowed down simultaneously to ascension oil smoke by it
The negative pressure central area that guiding oil smoke enters inside eddy flow auxiliary device 4 (show part oil smoke flow referring to filled arrows in Fig. 2
Dynamic path), oil smoke is accelerated to enter the air inlet of range hood, is sent out due to oil smoke enters induction eddy flow caused by also compensating for possibility
The deficiency of raw escape.By air intake passage Q (the 3 common structures of exhaust fume collecting hood 1 and smoke deflector for being formed in 1 both sides of exhaust fume collecting hood and front side
Into), the part oil smoke of both sides and front side can be aspirated, further prevent fumes escaping.
Eddy flow auxiliary device 4 can also refer to the earlier application of the applicant mentioned in background technology, be not limited solely to
The present embodiment.
Embodiment two
Referring to Fig. 3, in the present embodiment, with above-described embodiment one the difference lies in, on smoke deflector 3, from first into
The position of air holes 31 has been downwardly protrude to form boss 32, and boss 32 is in preferably up big and down small conical butt, boss 32
Multiple second air inlet holes 33 are offered on side, it is possible thereby to which preferably guiding oil smoke is logical from the second air inlet hole 33 on boss 32
Cross the first air inlet hole 31, eddy flow auxiliary device 4 enters inside range hood.
Claims (8)
1. a kind of range hood, including exhaust fume collecting hood (1) and eddy flow auxiliary device (4), the eddy flow auxiliary device (4) is including being used for
Blowout induction eddy flow exhaust apparatus, on oil smoke flow path, the exhaust apparatus be located at exhaust fume collecting hood (1) upstream, feature
It is：The bottom of the eddy flow auxiliary device (4) is provided with smoke deflector (3), offers on the smoke deflector (3) and is assisted with eddy flow
Corresponding inside device (4), connection the first air inlet hole (31).
2. range hood according to claim 1, it is characterised in that：On the smoke deflector (3), from the first air inlet hole (31)
Position be downwardly protrude to form boss (32), multiple second air inlet holes (33) are offered on the side of the boss (32).
3. range hood according to claim 2, it is characterised in that：The boss (32) is in up big and down small frustum of a cone
Shape.
4. range hood described in any one of claim 1 to 3, it is characterised in that：The exhaust apparatus is at least three
A blowing column (42) and compartment of terrain are arranged in the first air inlet hole (31) surrounding of smoke deflector (3), the side of the blowing column (42)
At least one blowhole (421) is offered on wall, the direction setting for the blowhole (421) each dried on column (42) is in so that blow
Induction eddy flow is collectively formed in the air-flow of wind column (42) blowout.
5. range hood according to claim 4, it is characterised in that：The eddy flow auxiliary device (4) further include with each
The corresponding accessory fan (41) of blowing column (42), column (42) of each drying are extended in vertical direction, are each dried on column (42)
End opening and in hollow, the upper end for column (42) of each drying is connected with the air outlet of corresponding accessory fan (41), bottom then connects
It is connected to smoke deflector (3).
6. range hood according to claim 5, it is characterised in that：The accessory fan (41) is Small Centrifugal Fan.
7. range hood according to claim 4, it is characterised in that：The eddy flow auxiliary device (4) further includes to drive
The driving mechanism (43) that dynamic auxiliary wind turbine (41) and blowing column (42) lift.
8. range hood according to claim 7, it is characterised in that：The driving mechanism (43) is electric pushrod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613229.8U CN207471639U (en) | 2017-11-28 | 2017-11-28 | A kind of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721613229.8U CN207471639U (en) | 2017-11-28 | 2017-11-28 | A kind of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207471639U true CN207471639U (en) | 2018-06-08 |
Family
ID=62260002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721613229.8U Active CN207471639U (en) | 2017-11-28 | 2017-11-28 | A kind of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207471639U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657470A (en) * | 2018-06-29 | 2020-01-07 | 博西华电器（江苏）有限公司 | Smoke ventilator, be used for smoke guide plate of smoke ventilator |
| CN111735086A (en) * | 2020-05-12 | 2020-10-02 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN112439472A (en) * | 2020-11-26 | 2021-03-05 | 重庆劲旗科技股份有限公司 | Air curtain type protection experiment table |
-
2017
- 2017-11-28 CN CN201721613229.8U patent/CN207471639U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110657470A (en) * | 2018-06-29 | 2020-01-07 | 博西华电器（江苏）有限公司 | Smoke ventilator, be used for smoke guide plate of smoke ventilator |
| CN110657470B (en) * | 2018-06-29 | 2022-12-27 | 博西华电器（江苏）有限公司 | Smoke ventilator, be used for smoke guide plate of smoke ventilator |
| CN111735086A (en) * | 2020-05-12 | 2020-10-02 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN111735086B (en) * | 2020-05-12 | 2022-03-18 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN112439472A (en) * | 2020-11-26 | 2021-03-05 | 重庆劲旗科技股份有限公司 | Air curtain type protection experiment table |
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