CN108087332A - Draught fan impeller assembly and range hood - Google Patents
Draught fan impeller assembly and range hood Download PDFInfo
- Publication number
- CN108087332A CN108087332A CN201810061310.2A CN201810061310A CN108087332A CN 108087332 A CN108087332 A CN 108087332A CN 201810061310 A CN201810061310 A CN 201810061310A CN 108087332 A CN108087332 A CN 108087332A
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- China
- Prior art keywords
- mounting structure
- draught fan
- impeller body
- impeller
- vane frame
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- 238000007599 discharging Methods 0.000 claims abstract description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 17
- 239000003546 flue gas Substances 0.000 abstract description 17
- 239000007789 gas Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
- F04D29/386—Skewed blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/388—Blades characterised by construction
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of draught fan impeller assembly and range hood, it is related to the technical field of kitchen appliance.A kind of draught fan impeller assembly includes impeller body and pre- vane frame, and pre- vane erection is placed in inside impeller body；Pre- vane frame includes outer mounting structure, interior mounting structure and multiple spokes, and outer mounting structure with impeller body for being connected, and for being connected with wind turbine driving mechanism, multiple spokes are connected between outer mounting structure and interior mounting structure interior mounting structure；Spoke uses the blade structure in space curved surface shape；When pre- vane frame rotates, pre- vane frame is engaged with impeller body, for sucking and discharging flue gas.A kind of range hood includes draught fan impeller assembly.It is an object of the invention to provide a kind of draught fan impeller assembly and range hood, gas flowing " dead zone " is susceptible between impeller center and blade in the prior art to alleviate, the problem of so as to influence impeller and range hood work efficiency.
Description
Technical field
The present invention relates to the technical field of kitchen appliance, more particularly, to a kind of draught fan impeller assembly and range hood.
Background technology
The core component of range hood during the blower fan system of domestic cooking fume remover, performance quality directly affect range hood
Smoking effect；At present, the acting component of blower fan system is impeller, and the leaf frame used is the side such as plate or drawing type
Formula, the leaf frame act as being fixedly mounted impeller, and the output axis connection of leaf frame and motor.
However, due to being connected to using the leaf frame of aforesaid way between impeller and motor so that gas enters impeller internal
And during flowing, gas flowing " dead zone " is susceptible between impeller center and blade, is passed through so as to influence air-flow
The process of impeller influences the smoking efficiency of impeller, further influence the quality of entire range hood quality.
Based on problem above, propose that a kind of efficient impeller of smoking and range hood are particularly important.
The information for being disclosed in the background section is merely intended to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implies the information structure prior art known to those skilled in the art in any form.
The content of the invention
It is an object of the invention to provide a kind of draught fan impeller assembly and range hood, to alleviate in impeller in the prior art
Gas flowing " dead zone " is susceptible between the heart and blade, the problem of so as to influence impeller and range hood work efficiency.
In order to solve the above-mentioned technical problem, the technological means taken of the present invention is：
A kind of draught fan impeller assembly provided by the invention includes impeller body and pre- vane frame；
The pre- vane frame is located at the inside of the impeller body, and is fixedly connected with the impeller body；
The pre- vane frame include outer mounting structure, interior mounting structure and multiple spokes, the outer mounting structure be used for
The impeller body connection, for being connected with wind turbine driving mechanism, multiple spokes are connected to the interior mounting structure
Between the outer mounting structure and the interior mounting structure；
The spoke uses the blade structure in space curved surface shape；
When the pre- vane frame rotation, the pre- vane frame is engaged with the impeller body, for sucking and arranging
Go out flue gas.
As a kind of further technical solution, the spoke width both sides are arranged to the first curve and the second song
Line；
First curve and second asymptote of curve are vertical with the axis of the pre- vane frame, and described
The distance between one asymptote of curve and second asymptote of curve are 10-25mm.
As a kind of further technical solution, the width of the spoke is 20-40mm, and the thickness of the spoke is 1-
4mm, the distance between first asymptote of curve and second asymptote of curve are 15-20mm.
As a kind of further technical solution, the width of the spoke is 30mm, and the thickness of the spoke is 2-3mm,
The distance between first asymptote of curve and second asymptote of curve are 18mm.
As a kind of further technical solution, the impeller body includes front ring, rear circle and multiple blades, and each institute
State blade both ends be separately fixed at the front ring, it is described after circle outer rim at；
The pre- vane erection is placed between the front ring and the rear circle；
The outer mounting structure is arranged between the front ring and the rear circle, and is connected with the impeller body.
As a kind of further technical solution, it is fixedly connected between the outer mounting structure and the rear circle.
As a kind of further technical solution, it is provided with to be clamped the blade at the outer rim of the outer mounting structure
Card slot.
As a kind of further technical solution, rotation direction phase that rotation direction that the pre- vane frame is set is set with impeller body
Unanimously.
A kind of range hood provided by the invention includes the draught fan impeller assembly.
As a kind of further technical solution, the range hood is side-suction type range hood；
The front ring of the impeller body surrounds main air inlet；
The pre- vane erection is disposed adjacent at the position of rear circle of the impeller body, and with the main air inlet phase
It is right.
Compared with prior art, technical advantage possessed by a kind of draught fan impeller assembly and range hood provided by the invention
For：
A kind of draught fan impeller assembly provided by the invention includes impeller body and pre- vane frame；Wherein, pre- vane frame is set
In the inside of impeller body, and pre- vane frame is fixedly connected with impeller body so that leaf frame can impeller body revolved
Turn；Pre- vane frame includes outer mounting structure, interior mounting structure and multiple spokes, wherein, outer mounting structure design is plate-like, is used for
It is fixedly connected with impeller body, interior mounting structure is used to be sequentially connected with wind turbine driving mechanism, and multiple spokes are uniformly connected to outer
Between mounting structure and interior mounting structure；Further, spoke uses blade structure, which is in space curved surface shape,
So, when wind turbine driving mechanism drives pre- vane frame rotation, rotated by pre- vane frame synchronous drive impeller body,
When pre- vane frame and impeller body rotate as a result, mutual cooperation can play the role of smoke evacuation, to improve smoke exhaust efficiency.
The operation principle of draught fan impeller assembly provided by the invention is：
When wind turbine is opened, wind turbine driving mechanism drives spoke to rotate by interior mounting structure, and drives outer peace by spoke
Assembling structure rotates, and wind turbine driving mechanism can drive entire pre- vane frame to be rotated as a result,；And spoke uses space curved surface shape
The blade structure of shape when pre- vane frame rotates, can play suction-operated, in order to which flue gas is absorbed into leaf to flue gas
In the inner cavity for taking turns body；Meanwhile be fixedly connected between pre- vane frame and impeller body, pre- vane frame being capable of synchronous drive as a result,
Impeller body rotates,, can be by impeller sheet by the special construction of the blade at impeller body outer rim when impeller body rotates
The gas of internal side is discharged from the gap between adjacent blades, is generated certain vacuum degree on the inside of impeller body as a result, is made
Extraneous flue gas can suck and discharge from the front end of impeller body.Also, flue gas is produced when pre- vane frame is rotated with impeller body
Raw effect is superimposed, so as to be more advantageous to absorbing and discharge flue gas.
In addition, the structure design based on spoke, can generate one on the inside of impeller body when rotated and prewhirl, it can be right
Thus air-flow acting on the inside of impeller body drives the gas flowing on the inside of impeller body.
A kind of draught fan impeller assembly provided by the invention by being used in conjunction with each other for pre- vane frame and impeller body, is shown
The wind pressure for improving blower fan system is write, so as to substantially increase the efficiency for absorbing flue gas；In addition, by setting pre- vane frame can also
The gas on the inside of impeller body is enough made to flow, and then effectively alleviates on the inside of impeller body and " dead zone " occurs between blade
The problem of, improve the quality of entire range hood.
A kind of range hood provided by the invention includes above-mentioned draught fan impeller assembly, and the range hood is reached as a result,
Technical advantage and effect include technical advantage and effect that above-mentioned draught fan impeller assembly is reached, are no longer repeated herein.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in describing below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of first structure schematic diagram of draught fan impeller assembly provided in an embodiment of the present invention；
Fig. 2 is a kind of second structure diagram of draught fan impeller assembly provided in an embodiment of the present invention；
Fig. 3 is the first structure schematic diagram of the pre- vane frame in draught fan impeller assembly shown in FIG. 1；
Fig. 4 is along the sectional view of A-A in Fig. 3；
Fig. 5 is the second structure diagram of the pre- vane frame in draught fan impeller assembly shown in FIG. 1；
Fig. 6 is the 3rd structure diagram of the pre- vane frame in draught fan impeller assembly shown in FIG. 1.
Icon：100- impeller bodies；110- front rings；It is enclosed after 120-；130- blades；The pre- vane framves of 200-；210-
Outer mounting structure；211- card slots；Mounting structure in 220-；230- spokes；The first curves of 231-；The second curves of 232-.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Concrete structure is as shown in figs 1 to 6.
A kind of draught fan impeller assembly provided in this embodiment includes impeller body 100 and pre- vane frame 200；Wherein, prewhirl
Leaf frame 200 is arranged on the inside of impeller body 100, and pre- vane frame 200 is fixedly connected with impeller body 100 so that leaf frame energy
Enough impeller bodies 100 are rotated；Pre- vane frame 200 includes outer mounting structure 210, interior mounting structure 220 and multiple spokes
Item 230, wherein, outer mounting structure 210 is designed as plate-like, and for being fixedly connected with impeller body 100, interior mounting structure 220 is used
Be sequentially connected in wind turbine driving mechanism, multiple spokes 230 be uniformly connected to outer mounting structure 210 and interior mounting structure 220 it
Between；Further, spoke 230 uses blade structure, which is in space curved surface shape, so, when wind turbine drives
When mechanism drives the pre- rotation of vane frame 200, rotated by pre- 200 synchronous drive impeller body 100 of vane frame, prewhirled as a result,
When leaf frame 200 and impeller body 100 rotate, mutual cooperation can play the role of smoke evacuation, to improve smoke exhaust efficiency.
The operation principle of draught fan impeller assembly provided in this embodiment is：
When wind turbine is opened, wind turbine driving mechanism drives spoke 230 to rotate by interior mounting structure 220, and by spoke 230
Outer mounting structure 210 is driven to rotate, wind turbine driving mechanism can drive entire pre- vane frame 200 to be rotated as a result,；And spoke
230 use the blade structure of space curved surface shape, when pre- vane frame 200 rotates, can play suction-operated to flue gas, so as to
In flue gas is absorbed into the inner cavity of impeller body 100；Meanwhile fixed company between pre- vane frame 200 and impeller body 100
Connect, as a result, pre- vane frame 200 can synchronous drive impeller body 100 rotate, when impeller body 100 rotates, pass through impeller sheet
The special construction of blade 130 at 100 outer rim of body, can be by the gas of 100 inside of impeller body between adjacent blades 130
It is discharged in gap, generates certain vacuum degree in 100 inside of impeller body as a result, enable extraneous flue gas from impeller body 100
Front end suck and discharge.Also, it is superimposed to the effect of flue gas generation when pre- vane frame 200 is rotated with impeller body 100, from
And it is more advantageous to absorbing and discharging flue gas.
In addition, the structure design based on spoke 230, can generate one in 100 inside of impeller body when rotated and prewhirl,
It can do work to the air-flow of 100 inside of impeller body, thus drive the gas flowing of 100 inside of impeller body.
A kind of draught fan impeller assembly provided in this embodiment passes through the mutual cooperation of pre- vane frame 200 and impeller body 100
It uses, significantly improves the wind pressure of blower fan system, so as to substantially increase the efficiency for absorbing flue gas；In addition, it is prewhirled by setting
Leaf frame 200 can also make the gas of the inside of impeller body 100 flow, so effectively alleviate 100 inside of impeller body with
Occur the problem of " dead zone " between blade 130, improve the quality of entire range hood.
In the optional technical solution of the present embodiment, it is bent that 230 width both sides of spoke are arranged to the first curve 231 and second
Line 232；The asymptote of first curve 231 and the second curve 232 is vertical with the axis of pre- vane frame 200, and the first curve 231
Asymptote and the distance between the asymptote L of the second curve 232 be 10-25mm.
In the optional technical solution of the present embodiment, the width D of spoke 230 is 20-40mm, and the thickness t of spoke 230 is 1-
The distance between the asymptote of 4mm, the asymptote of the first curve 231 and the second curve 232 L is 15-20mm.
In the optional technical solution of the present embodiment, spoke 230 is rectangular along the projection of pre- 200 axis direction of vane frame；Spoke
The width D of item 230 is 30mm, and the thickness t of spoke 230 is 2-3mm, the asymptote of the first curve 231 and the second curve 232
The distance between asymptote is 18mm.
It should be noted that when being rotated to alleviate draught fan impeller, occur between 100 center of impeller body and blade 130
The problem of gas flowing " dead zone ", in the present embodiment, redesigns the structure of pre- vane frame 200 so that pre- vane frame
200 not only play an important role of that impeller body 100 is fixedly mounted in support, but also can also be conducive to impeller body when it is rotated
100 absorb flue gas, and flue gas is caused also to have certain mobility when entering 100 inner cavity of impeller body.
Pre- vane frame 200 in the present embodiment includes outer mounting structure 210, interior mounting structure 220 and multiple spokes 230,
Also, the spoke 230 is designed to space curved surface shape, specifically, spoke 230 can essentially be considered one piece of rectangular slab,
One end of rectangular slab is screwed, and it is bent, the rectangular slab is made to eventually become one with spiral shape and arc
Space curved surface structure；Before screwing, the width of one end is fixedly connected with prewhirling with interior mounting structure 220 on rectangular slab
The axis direction of leaf frame 200 is perpendicular, and by after screwing, the width is no longer vertical with the axis direction, but phase
Mutually be obliquely installed, and the end face is fixedly connected with interior mounting structure 220, due to being obliquely installed, virtually increase spoke 230 with
Connection area between interior mounting structure 220, improves bonding strength.And the other end of rectangular slab then with outer mounting structure 210
Inner edge be fixedly connected, it is thus achieved that being set between interior mounting structure 220 and outer mounting structure 210 multiple in space curved surface
The spoke 230 of shape in favor of improving the absorption of flue gas, discharge, and is alleviated and occurs asking for " dead zone " in 100 inner cavity of impeller body
Topic.
In the present embodiment, according to actual requirement, the width D of spoke 230 is arranged to 20-40mm, including 20mm, 25mm,
30mm, 35mm, 40mm are preferably 30mm；The thickness of spoke 230 is arranged to 1-4mm, including 1mm, 2mm, 3mm, 4mm, into one
Step is preferably 2-3mm, including 2mm, 2.5mm, 3mm etc..And the diameter of phi size of pre- vane frame 200 is needed according to family expenses oil suction
Depending on impeller in the fan platform of smoke machine.
In the present embodiment, the curve of spoke width both sides is respectively designated as the first curve 231 and the second curve
232, when the axis vertical of pre- vane frame 200 is placed, pre- vane frame 200 is projected to perpendicular, and pre- vane frame
200 is symmetrical compared with the perpendicular, at this point, the asymptote of the first curve 231 is horizontal, the asymptote of the second curve 232 is similary
For level, and the distance between two asymptote of curves L is 10-25mm, i.e., the drop of two curves is 10-25mm, into
One step, spacing L is 15-20mm, including 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, in the present embodiment, by experiment pair
It is preferably 18mm than research.Since the dynamic balancing of draught fan impeller assembly influences its performance substantially, to prewhirl by control as a result,
The above-mentioned parameter of leaf frame 200 ensure that the total integral dynamic balancing of draught fan impeller is unaffected.
Further, since eccentricity influences the openings of sizes of curve, the opening of pre- vane frame 200 is considered as a result,
Size, i.e., the size of outer mounting structure 210, the size and gas flow space of entire draught fan impeller assembly size will
The eccentricity of first curve 231 and the second curve 232 is disposed as 1, to meet the requirement of space structure and gas flowing.
In the optional technical solution of the present embodiment, impeller body 100 includes front ring 110, rear circle 120 and multiple blades 130,
Blade 130 uses arc shaped blade structure, and the both ends of each blade 130 are separately fixed at front ring 110, the afterwards outer rim of circle 120.
Further, pre- vane frame 200 is arranged between front ring 110 and rear circle 120, and in impeller body 100
Entreat position；Outer mounting structure 210 is arranged between front ring 110 and rear circle 120, and is connected with impeller body 100.
In the optional technical solution of the present embodiment, it is fixedly connected between outer mounting structure 210 and rear circle 120.
In the optional technical solution of the present embodiment, rotation direction and the rotation direction of the setting of impeller body 100 that pre- vane frame 200 is set
It is consistent.
In the optional technical solution of the present embodiment, it is provided with to be clamped blade 130 at the outer rim of outer mounting structure 210
Card slot 211.
It should be noted that the draught fan impeller assembly in the present embodiment includes impeller body 100 and pre- vane frame 200, and
It is fixedly connected, and is rotated by wind turbine driving mechanism by pre- 200 impeller body 100 of vane frame between the two, specifically
Mounting means is：Outer mounting structure 210 on pre- vane frame 200 is fixedly mounted on front ring 110 and rear circle on impeller body 100
Between 120, hereby it is achieved that the purpose of pre- vane frame 200 is installed in 100 inner cavity of impeller body, so as to more be obviously improved wind
The total head of machine system.
Further, different according to the installation site of pre- vane frame 200, performance is different, and the influence to air-flow is caused to be imitated
Fruit is different, and the present embodiment, the rotation direction of pre- vane frame 200 is consistent with the rotation direction of impeller, i.e., blade 130 is correspondingly arranged with spoke 230,
Thereby, it is possible to play the role of being overlapped mutually to air-flow.However, when outer mounting structure 210 and front ring on pre- vane frame 200
110 when being fixedly connected, at this point, to rotate played effect consistent for pre- vane frame 200 and impeller body 100, plays absorption cigarette
The effect of gas influences the in vivo gas flow of 100 chamber of impeller body at this point, pre- vane frame 200 rotates less, so as to right
Eliminate occur in impeller body 100 inner cavity the effect of air-flow " dead zone " compared with；When the outer mounting structure 210 on pre- vane frame 200 is solid
When being connected to front ring 110 and the centre position of rear circle 120 surely, although at this point, pre- vane frame 200 can be in impeller body 100
The air-flow of leading portion is prewhirled, but the whirlpool area that the air-flow of 100 back segment of impeller body is formed by pre- vane frame 200 obstructs so that after
The gas constricted flow of section, so, mutually neutralizes the effect of front and rear two sections of air-flows, finally makes the axis of pre- vane frame 200
It is not notable to flow effect promoting；As a result, when outer mounting structure 210 is fixedly connected with rear circle 120, pre- vane frame 200 can into
The air-flow entered in 100 inner cavity of impeller body is influenced, and can be reduced air-flow to the greatest extent and be entered in 100 inner cavity of impeller body
Loss so that the axis stream effect promoting of pre- vane frame 200 is notable, and total head is promoted notable, eliminates 100 interior air-flow of impeller body
" dead zone " it is with obvious effects.
It is pointed out that when outer mounting structure 210 be arranged on front ring 110 and after circle 120 between and not with front ring 110 or
When circle 120 is fixedly connected after person, in order to which pre- vane frame 200 is made to be fixedly connected with impeller body 100, in outer mounting structure 210
Multiple card slots 211 have uniformly been opened up at outer rim, when assembling draught fan impeller assembly, blade 130 has been connected in card slot 211, from
And can realize being fixedly connected between outer mounting structure 210 and blade 130, further realize pre- vane frame 200 and impeller sheet
Being fixedly connected between body 100.
A kind of range hood provided in this embodiment includes above-mentioned draught fan impeller assembly；In the present embodiment, fume-exhausting equipment
Body is side-suction type range hood, and the front ring of impeller body surrounds main air inlet, and pre- vane frame is set after on impeller body
At the position of circle, and the pre- vane frame is also oppositely arranged with main air inlet, the reason for this is that：The setting of pre- vane frame adds impeller
Air mass flow in chamber body in front of pre- vane frame, while the air mass flow at pre- vane frame rear is also reduced, thus
Realize the purpose of increase air quantity；And if the front and rear sides uniform air intake of pre- vane frame, whole air quantity is made to be not much different, but pin
To the situation of the main air inlet in one side, side-suction type range hood has certain advantage.In addition, a part of top suction type kitchen ventilator is equally full
Foot.
The range hood includes above-mentioned draught fan impeller assembly, the technical advantage and effect that the range hood is reached as a result,
Including technical advantage and effect that above-mentioned draught fan impeller assembly is reached, no longer repeated herein.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of draught fan impeller assembly, which is characterized in that including：Impeller body and pre- vane frame, the pre- vane erection are placed in
Inside the impeller body；
The pre- vane frame include outer mounting structure, interior mounting structure and multiple spokes, the outer mounting structure be used for it is described
Impeller body connects, and for being connected with wind turbine driving mechanism, multiple spokes are connected to described the interior mounting structure
Between outer mounting structure and the interior mounting structure；
The spoke uses the blade structure in space curved surface shape；
When the pre- vane frame rotation, the pre- vane frame is engaged with the impeller body, for sucking and discharging cigarette
Gas.
2. draught fan impeller assembly according to claim 1, which is characterized in that the spoke width both sides are arranged to
One curve and the second curve；
First curve and second asymptote of curve are vertical with the axis of the pre- vane frame, and described first is bent
The distance between the asymptote of line and second asymptote of curve are 10-25mm.
3. draught fan impeller assembly according to claim 2, which is characterized in that the width of the spoke be 20-40mm, institute
The thickness of spoke is stated as 1-4mm, the distance between first asymptote of curve and described second asymptote of curve are
15-20mm.
4. draught fan impeller assembly according to claim 3, which is characterized in that the width of the spoke be 30mm, the spoke
The thickness of item is 2-3mm, and the distance between first asymptote of curve and second asymptote of curve are 18mm.
5. draught fan impeller assembly according to claim 1, which is characterized in that the impeller body include front ring, rear circle and
Multiple blades, and the both ends of each blade be separately fixed at the front ring, it is described after circle outer rim at；
The pre- vane erection is placed between the front ring and the rear circle；
The outer mounting structure is arranged between the front ring and the rear circle, and is connected with the impeller body.
6. draught fan impeller assembly according to claim 5, which is characterized in that between the outer mounting structure and the rear circle
It is fixedly connected.
7. draught fan impeller assembly according to claim 5, which is characterized in that be provided at the outer rim of the outer mounting structure
For being clamped the card slot of the blade.
8. draught fan impeller assembly according to claim 5, which is characterized in that the rotation direction that the pre- vane frame is set with it is described
The rotation direction that impeller body is set is consistent.
9. a kind of range hood, which is characterized in that including claim 1-8 any one of them draught fan impeller assemblies.
10. range hood according to claim 9, which is characterized in that the range hood is side-suction type range hood；
The front ring of the impeller body surrounds main air inlet；
The pre- vane erection is disposed adjacent at the position of rear circle of the impeller body, and opposite with the main air inlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810061310.2A CN108087332B (en) | 2018-01-22 | 2018-01-22 | Fan impeller assembly and range hood |
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|---|---|---|---|
| CN201810061310.2A CN108087332B (en) | 2018-01-22 | 2018-01-22 | Fan impeller assembly and range hood |
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| CN108087332A true CN108087332A (en) | 2018-05-29 |
| CN108087332B CN108087332B (en) | 2024-06-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108534202A (en) * | 2018-06-14 | 2018-09-14 | 杭州老板电器股份有限公司 | Impeller, wind turbine and kitchen ventilator |
| CN108916110A (en) * | 2018-08-30 | 2018-11-30 | 杭州老板电器股份有限公司 | Impeller, blower and kitchen ventilator |
| CN113019640A (en) * | 2021-03-29 | 2021-06-25 | 南京工程学院 | Efficient superhard ultramicro powder vertical hydraulic turbulent mill |
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| CN108087332B (en) | 2024-06-11 |
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