CN205481216U - Reposition of redundant personnel device and it has this reposition of redundant personnel to use device for range hood - Google Patents
Reposition of redundant personnel device and it has this reposition of redundant personnel to use device for range hood Download PDFInfo
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- CN205481216U CN205481216U CN201620142524.9U CN201620142524U CN205481216U CN 205481216 U CN205481216 U CN 205481216U CN 201620142524 U CN201620142524 U CN 201620142524U CN 205481216 U CN205481216 U CN 205481216U
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- Prior art keywords
- diverter
- range hood
- reposition
- redundant personnel
- blower fan
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Abstract
The utility model discloses a range hood's diverging device, its characterized in that: including the shunt, the shunt includes a plurality of reposition of redundant personnel circles, the reposition of redundant personnel circle is in the footpath of shunt is interval arrangement from inside to outside upwards, and follow the side of every reposition of redundant personnel circle the axial first end of shunt forms the water conservancy diversion face to the second end extends. The utility model also discloses a series connection fan of using there is this diverging device. Through setting up by a plurality of at the footpath shunts that constitute of the reposition of redundant personnel circles of interval arrangement upwards, going on layer upon layer to the air current of process, the reposition of redundant personnel back is guided out relatively average the distribution to increase the flow that the air current passes through and reduce the noise that the fluid passes through, set up the drainage awl in the reposition of redundant personnel circle of inner circle, can carry out the circular cone reposition of redundant personnel to the air current of inner circle to striking on the plane appears in the air current of avoiding inner circle, makes the air current streamline more suitable, eliminates the vortex, and then the noise reduction.
Description
Technical field
This utility model relates to a kind of range hood, a kind of part flow arrangement for range hood, and application to be had
The series connection blower fan of this part flow arrangement.
Background technology
Range hood delivery flow in a state of use depends primarily on the blast of cooking-fume exhauster blower system, and blast is more
Greatly, delivery flow is the biggest.The range hood of normal domestic use in use, oil smoke need by smoke exhaust pipe, check (non-return) valve and
Oil smoke is discharged by the drag devices such as discharge flue, the existence of these drag devices so that oil smoke exists at oil smoke outlet
Certain back pressure, the existence of back pressure can largely effect on the delivery flow of lampblack absorber.The blast of blower fan system is to range hood
Delivery flow has a positive effect, and the delivery flow of range hood is then played negative influence by the existence of back pressure.
For the harmful effect overcoming back pressure to bring as far as possible, have been designed that the range hood that two fans is connected at present,
The range hood of this two fans series connection increases the blast of blower fan system by coupling primary and secondary two-stage blower fan, makes blower fan system
In a state of use, even if there is bigger back pressure also can obtain bigger air draft flow, and the rotating speed of primary and secondary two-stage blower fan
Without the highest, noise is less, can meet the requirement of the efficient quiet suction of lampblack absorber.
A kind of string for range hood as disclosed in the Chinese patent of the Application No. 201420143669.1 of the applicant
Connection two fans structure, including the main blower fan being located in blower hood and secondary fan, the air outlet of main blower fan is with secondary
The air inlet of blower fan is connected by wind-guiding connecting tube and is in fluid communication, and the housing of main blower fan and the housing of secondary fan are perpendicular
Overlap in projection, and the lower edge of the air inlet of secondary fan is positioned at the top of overlapping region.
But above-mentioned this series connection two fans structure, connect design, main fan outlet for guide duct between inlet and outlet
Use sealing cavity to be transitioned into the air inlet of secondary fan, and main fan outlet fluid is concentrated and speed is fast, thus
The intake volume of secondary fan can be had a strong impact on, and then affect range hood overall performance.
Utility model content
First to be solved in the utility model technical problem is that the problem existed for above-mentioned prior art, it is provided that a kind of
Increase air quantity, the part flow arrangement for range hood of reduction noise.
Second technical problem to be solved in the utility model is to provide a kind of application the series connection wind of above-mentioned part flow arrangement
Machine.
The technical scheme that above-mentioned first technical problem of this utility model solution is used is: a kind of dividing for range hood
Stream device, it is characterised in that: including that diverter, described diverter include multiple splitting ring, described splitting ring is at described point
Stream device be spaced layout the most from inside to outside, the side of each splitting ring from described diverter shaft to the first end to second
End extends and forms guide face.
Further, for air-flow fluid path of fitting well, air-flow is led into layer by layer impeller, described splitting ring
Guide face from described diverter shaft to the first end the most bend radially outward and form curved surface to the second end.
Further, for making air-flow streamline more suitable, eliminate eddy current, be provided with in described diverter drain cone, described in draw
Flow cone is positioned at the splitting ring of innermost circle and the vertex of a cone the first end towards described diverter.
Further, the connected mode of splitting ring is, is connected by connecting rod between described splitting ring.
The technical scheme that above-mentioned second technical problem of this utility model solution is used is: a kind of string for range hood
Connection blower fan, including the one-level blower fan being in series mutually and light breeze machine, described light breeze machine includes two grades of air inlets, its feature
Being: be provided with diverter as above in described light breeze machine, the first end of described diverter is positioned at described two grading
At air port, the second end of described diverter is away from the direction of two grades of air inlets.
Preferably, the fixed form of drain cone is that described light breeze machine includes impeller, and described impeller includes chassis, described
Arrange in diverter drain cone time, described drain cone cone at the bottom of be connected with described chassis, the second end of described diverter towards
Described chassis.
Preferably, in order to conform better to the characteristic of fluid, play and be preferably layered guide functions, described light breeze machine bag
Including impeller, the splitting ring of outmost turns is 5mm～35mm with the distance of described impeller inner ring.
Preferably, the connected mode between one-level blower fan and light breeze machine is, described one-level blower fan includes one-level air outlet,
Between described one-level air outlet and described two grades of air inlets, the guide duct by sealing realizes fluid communication, and guide duct is fluid
The transition flexible pipe of moulding or the transition seal cavity of other regular figures.
Compared with prior art, the utility model has the advantage of: by arranging by multiple the most spaced apart point
The diverter that stream circle is constituted, to through air-flow shunt layer by layer after be guided out by average distributing, thus increase
Aerating stream by flow and reduce the noise that fluid passes through；Drain cone is set in the splitting ring of innermost circle, can be right
The air-flow of innermost circle carries out circular cone shunting, thus avoids the air-flow of innermost circle the shock in plane occur so that air-flow streamline
More suitable, eliminate eddy current, and then reduce noise；By part flow arrangement being arranged in the light breeze machine of series connection blower fan so that
The fluid of one-level fan outlet is distributed in input sencond stage impeller by average, thus improves the property of whole blower fan system
Can, play the effect increasing air quantity reduction noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of series connection blower fan of the present utility model；
Fig. 2 is the schematic diagram of the diverter being applied to series connection blower fan of the present utility model；
Fig. 3 is the schematic diagram of the drain cone being applied to series connection blower fan of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
Seeing Fig. 1, a kind of series connection blower fan for range hood, including the one-level blower fan 1 being in series mutually and light breeze machine
2, one-level blower fan 1 and light breeze machine 2 are centrifugal blower, and wherein, one-level blower fan 1 includes one-level air inlet 11 and
Level air outlet 12, light breeze machine 2 includes two grades of air inlets 21 and two grades of air outlets 22.
The one-level air outlet 12 of one-level blower fan 1 is in fluid communication with two grades of air inlets 21 of light breeze machine 2.At the present embodiment
In, the one-level air outlet 12 of one-level blower fan 1 is connected to two grades of air inlets of light breeze machine 2 by the guide duct 3 sealed
21, guide duct 3 is transition flexible pipe or the transition seal cavity of other regular figures of fluid formative.Thus, range hood
Air inlet enter air-flow successfully sucked after, at the one-level air inlet 11 of one-level blower fan 1, enter into force one wind
In machine 1, and discharge from the one-level air outlet 12 of one-level blower fan 1, grading from the two of light breeze machine 2 by guide duct 3
Air port 21 enters in light breeze machine 2, and discharges from two grades of air outlets 22 of light breeze machine 2.
Light breeze machine 2 includes that impeller 23, impeller 23 include front ring 231, chassis 232 and be arranged at front ring 231
And the blade 233 between chassis 232.Being provided with part flow arrangement in impeller 23, part flow arrangement includes diverter 4 and drain
Cone 5, in conjunction with Fig. 1 referring back to Fig. 2 and Fig. 3, wherein, diverter 4 includes multiple splitting ring 41, multiple splitting rings 41
Being spaced layout the most from inside to outside at diverter 4, the number of splitting ring 41 is preferably 2～4, in this enforcement
In example, splitting ring 41 is three.Can be connected by connecting rod 42 between each splitting ring 41, in the present embodiment, even
Extension bar 42 is three, is evenly spaced apart distribution in a circumferential direction.
Axial the first end of diverter 4 is placed at two grades of air inlets 21, thus diverter 4 and the air intake of light breeze machine 2
Mouthful uniting two into one, axial the second end of diverter 4 is then away from two grades of air inlets 21, say, that the radial direction of diverter 4
Rotating shaft with impeller 23 is vertical, diverter 4 axially the most then with the shaft parallel of impeller 23.Air-flow is from two grades of air inlets
After 21 enter, impeller 23 is guided at the interval between two adjacent splitting rings 41 into, and fluid path sees arrow in Fig. 1
Shown in.
In the present embodiment, the side of splitting ring 41 extends to the second end from the first end that diverter 4 is axial and is formed and lead
Stream interface, air-flow flows to impeller 23 along guide face.Preferably, the guide face of splitting ring 41 is from the first end of diverter 4
The most bend radially outward and form curved surface to the second end, i.e. splitting ring 41 by axial the first end of diverter 4 to second
End is gradually increased and forms horn mouth.Guide curve surface is according to the diameter of impeller 23 and highly carries out design of Simulation, thus
More meet the characteristic of fluid.Guide curve surface can well be fitted fluid path, thus guides air-flow to enter impeller 23 layer by layer,
The fluid making one-level air outlet 12 is more uniformly distributed, is input to the most in an orderly manner in impeller 23, and air quantity can promote
0.5～0.8m3/ min, noise is without substantially increasing.Preferably, the splitting ring 41 of outmost turns and impeller 23 inner ring away from
From for 5mm～35mm.Alternatively, the side of splitting ring 41 can also be plane.
Drain cone 5 is placed in diverter 4, and is positioned at the splitting ring 41 of innermost circle, the vertex of a cone 51 court of drain cone 5
To the first end of diverter 4, the cone end 52 of drain cone 5, is then connected fixing with the chassis 232 of impeller 23.Drain is bored
Air-flow in the splitting ring 41 of 5 pairs of innermost circles carries out circular cone shunting, thus avoids the air-flow of innermost circle entering impeller 23
The front shock occurred in plane, and then reduce noise.
Drain cone 5 and diverter 4 with the use of so that the air-flow streamline in light breeze machine 2 is more suitable, eliminate eddy current,
On the basis of not increasing noise, air quantity promotes 10%.
Claims (8)
1. the part flow arrangement for range hood, it is characterised in that: include diverter (4), described diverter (4)
Including multiple splitting rings (41), described splitting ring (41) is spaced layout the most from inside to outside described diverter (4), often
The side of individual splitting ring (41) extends to the second end from the first end that described diverter (4) is axial and forms guide face.
2. the part flow arrangement for range hood as claimed in claim 1, it is characterised in that: described splitting ring (41)
Guide face the most bend radially outward and form curved surface to the second end from axial the first end of described diverter (4).
3. the part flow arrangement for range hood as claimed in claim 1 or 2, it is characterised in that: described diverter
(4) being provided with drain cone (5) in, described drain cone (5) is positioned at the splitting ring (41) of innermost circle and the vertex of a cone (51) towards described
First end of diverter (4).
4. the part flow arrangement for range hood as claimed in claim 1 or 2, it is characterised in that: described splitting ring
(41) connected by connecting rod (42) between.
5. for a series connection blower fan for range hood, including the one-level blower fan (1) being in series mutually and light breeze machine (2), institute
State light breeze machine (2) and include two grades of air inlets (21), it is characterised in that: arrange just like claim in described light breeze machine (2)
Diverter (4) according to any one of 1～4, the first end of described diverter (4) is positioned at described two grades of air inlet (21) places, institute
State the second end of diverter (4) away from described two grades of air inlets (21).
6. the series connection blower fan for range hood as claimed in claim 5, it is characterised in that: described light breeze machine (2)
Including impeller (23), described impeller (23) includes chassis (232), arrange in described diverter (4) drain cone (5) time, described in draw
At the bottom of the cone of flow cone (5), (52) are connected with described chassis (232), and the second end of described diverter (4) is towards described chassis (232).
7. the series connection blower fan for range hood as claimed in claim 5, it is characterised in that: described light breeze machine (2)
Including impeller (23), the splitting ring (41) of outmost turns and the distance of described impeller (23) inner ring are 5mm～35mm.
8. the series connection blower fan for range hood as according to any one of claim 5～7, it is characterised in that: described
One-level blower fan (1) includes one-level air outlet (12), by close between described one-level air outlet (12) and described two grades of air inlets (21)
The guide duct (3) of envelope realizes fluid communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142524.9U CN205481216U (en) | 2016-02-25 | 2016-02-25 | Reposition of redundant personnel device and it has this reposition of redundant personnel to use device for range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142524.9U CN205481216U (en) | 2016-02-25 | 2016-02-25 | Reposition of redundant personnel device and it has this reposition of redundant personnel to use device for range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205481216U true CN205481216U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620142524.9U Active CN205481216U (en) | 2016-02-25 | 2016-02-25 | Reposition of redundant personnel device and it has this reposition of redundant personnel to use device for range hood |
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| Country | Link |
|---|---|
| CN (1) | CN205481216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546613A (en) * | 2016-02-25 | 2016-05-04 | 宁波方太厨具有限公司 | Shunting device for extractor hood and cascaded fans applying shunting device |
| CN108278643A (en) * | 2017-01-06 | 2018-07-13 | 博西华电器（江苏）有限公司 | Smoke exhaust ventilator and its wind turbine connection tube |
-
2016
- 2016-02-25 CN CN201620142524.9U patent/CN205481216U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546613A (en) * | 2016-02-25 | 2016-05-04 | 宁波方太厨具有限公司 | Shunting device for extractor hood and cascaded fans applying shunting device |
| CN108278643A (en) * | 2017-01-06 | 2018-07-13 | 博西华电器（江苏）有限公司 | Smoke exhaust ventilator and its wind turbine connection tube |
| CN108278643B (en) * | 2017-01-06 | 2020-02-28 | 博西华电器（江苏）有限公司 | Smoke ventilator and fan linking pipe thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |