CN109555724A - A kind of side set impeller and range hood - Google Patents
A kind of side set impeller and range hood Download PDFInfo
- Publication number
- CN109555724A CN109555724A CN201710878128.1A CN201710878128A CN109555724A CN 109555724 A CN109555724 A CN 109555724A CN 201710878128 A CN201710878128 A CN 201710878128A CN 109555724 A CN109555724 A CN 109555724A
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- China
- Prior art keywords
- blade
- side set
- set impeller
- mid
- game
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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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- 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
- F04D29/08—Sealings
- F04D29/083—Sealings especially adapted for elastic fluid pumps
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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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
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 invention discloses a kind of side set impeller and range hoods, the leading edge of at least one in multiple first blades and/or the second blade thereon is arranged to zigzag, and at least one section of the trailing edge of at least one in multiple first blades and/or the second blade is arranged to waveform.The side set impeller of the structure can be improved air quantity, and largely reduce noise, and the range hood including the side set impeller has better using effect.
Description
Technical field
The invention belongs to air cleaning facility fields, specifically, being related to a kind of side set impeller and range hood.
Background technique
Today's society, noise pollution have become very important environmental pollution, it widely affects the various of people
Activity such as influences sleep and rest, interferes talk, interferes work, makes hearing by damage, or even causes nervous system, the heart
The disease of vascular system, digestive system etc..Air cleaning facility in the prior art, is improved by various modes simply
The air quantity and wind pressure of product, often ignore the generation of noise.Although some oil-fume exhauster products recognize that noise is that user makes
With a big pain spot in the process, but these products only pass through and increase the effect that sound-absorbing material realizes noise reduction inside range hood
Fruit, however, this method generally requires to increase substantially cost to reach expection, and to the cleaning problem of later range hood
It is also a major problem.With the improvement of living standards, the consumption idea of people is changed.Range hood is as contemporary kitchen
Indispensable a part, demand of the people to it have been evolved into gradually from initial simple mist extractor demand to appearance, noise
And the requirement of auxiliary function, especially noise problem.Currently, range hood starts to develop to the direction of Wind Volume, big wind pressure, and
Along with the raising of air quantity and wind pressure, noise also obtains a degree of increase, therefore generated to reduce noise in kitchen
Harm, it is necessary to reduce the noise of range hood.According to current consumer to the Market Feedback result of oil-fume exhauster product from the point of view of, inhale
Kitchen ventilator product has been very urgent the improvement problem of noise.The common noise control technique of air cleaning facility field has
Noise elimination, sound absorption, sound insulation, vibration isolation, damping etc., mainly carried out in terms of noise source, noise transmission approach and recipient control with
Processing.Each kitchen ventilator manufacturer also takes various modes and carries out noise reduction.Some producers change the molded line of spiral case, make gas
Stream is more smooth in spiral casing flow passage, to reduce the noise of blower;Some producers increase the gap between impeller and volute tongue,
By optimization air outlet so as to improve noise;Producer also by increasing quieter material in range hood main tank and spiral case,
To inhibit the generation of noise on route of transmission, it may be said that the scheme of range hood noise reduction is varied, but specific effect
Also multifarious, it is difficult to obtain a kind of satisfactory noise reduction air cleaning facility.
In view of this present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of side set impeller, Duo Ge
The leading edge of at least one in one blade and/or the second blade is arranged to zigzag, in multiple first blades and/or the second blade
At least one section of the trailing edge of at least one is arranged to waveform.The side set impeller of the structure can be improved air quantity, and larger journey
The reduction noise of degree.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution: a kind of side set impeller, including it is same
Axis arrangement upper disk, mid-game and lower wall, multiple first blades that both ends are connect with upper disk with mid-game respectively, both ends respectively with mid-game
The leading edge of multiple second blades connected with lower wall, at least one in multiple first blades and/or the second blade is arranged to saw
At least one section of tooth form, the trailing edge of at least one in multiple first blades and/or the second blade is arranged to waveform.
By above-mentioned design, the vortex in side set impeller channel can be destroyed, thus reduce the generation of vortex and fall off, from
And achieve the purpose that reduce noise.
The present invention is further arranged to: at least one of the multiple first blade is close to the side of mid-game and/or the
Trailing edge of at least one of two blades close to the side of lower wall is arranged to waveform.
By above-mentioned design, the design of the waveform trailing edge keeps air-flow more smooth in impeller channel, can not only improve
Air quantity, moreover it is possible to reduce noise.
The present invention is further arranged to: at least one of the multiple first blade and/or the second blade at least
One trailing edge is all arranged to waveform.
By above-mentioned design, it can preferably realize to the destruction of the vortex in side set impeller channel, further decrease and make an uproar
Sound, and increase the structural stability of side set impeller, improve the ability of rotational energy transmitting.
The present invention is further arranged to: first blade and the second blade Heterogeneous Permutation;
Preferably, the surface of first blade and the second blade coats non-sticky oil coating.
By above-mentioned design, so that the interaction between blade and volute tongue will occur in different at the time of, work is weakened
Intensity firmly, significantly reduces discrete noise.
The present invention is further arranged to: first blade is different from the arrangement angle of the second blade;
Preferably, first blade and the second blade are staggered 3 ° of angles in the direction of the clock.
By above-mentioned design, side set paddle wheel plane is divided into multiple runners by blade, and side set impeller inside vortex is generated
Time is divided into multiple periods, avoids the superposition generation strenuous vibration that is vortexed, and then avoid generating noise.
The present invention is further arranged to: first blade is different from the size in the second length of blade direction;
Preferably, the dimension scale in first blade and the second length of blade direction is 4:3;
It is further preferred that the quantity of first blade and the second blade is 60;
Still further preferably, the side set impeller diameter is 255 millimeters.
By above-mentioned design, the reasonable side set blade wheel structure of cooperation can be obtained, the side set impeller air quantity of the structure is big, makes an uproar
Sound is small, is suitable for range hood and uses.
The present invention is further arranged to: the side set impeller further includes motor, and the motor passes through with the mid-game to be connect
Part connection;
Preferably, the connector include positioned at motor axis on first connecting portion and be located at the mid-game center location
Second connecting portion, first connecting portion and second connecting portion can be ordinatedly detachably connected;
It is further preferred that be provided in the first connecting portion and second connecting portion mutually matched fastener and slotware/
Slotware and fastener.
By above-mentioned design, it can be realized reasonable connection between mid-game and motor, which can be largely
Avoid junction generate vibration friction, and then avoid at this generate noise;And connection type kinetic energy with higher
The kinetic energy that motor generates can efficiently be passed to side set impeller by transmission efficiency.
The present invention is further arranged to: the both ends of first blade pass through the first connecting pin being arranged thereon and second and connect
Connecing end, riveting is fixed on disk and mid-game respectively, and upper disk outer end face and the first connecting pin form the first concave-convex joint face, and
Setting has wavy sealing device on the first joint face, so that first connecting pin is in the wave crest of wave;
Preferably, the sealing device is waveform sealing structure obtained after sealant coating;
It is further preferred that the sealing device is prefabricated component, prefabricated component is bonded on the first joint face by sealant.
By above-mentioned design, which can be realized effective sealing between blade and upper disk, avoid two
Gap is generated between person, and then avoids causing to vibrate at this;And wavy structure enables to air-flow in the first connection
It is steadily excessive when being flowed through at face, noise vibration will not be caused because air-flow is rapid.
The present invention is further arranged to: the both ends of second blade pass through the first connection bump and second being arranged thereon
Connection bump rivets be fixed in mid-game and lower wall respectively, and lower wall outer end face forms concave-convex second with the second connection bump and connect
Face, and setting has wavy sealing device on the second joint face, so that second connection bump is in the wave of wave
In peak;
Preferably, the sealing device is waveform sealing structure obtained after sealant coating;
It is further preferred that the sealing device is prefabricated component, prefabricated component is bonded on the second joint face by sealant.
By above-mentioned design, which can be realized effective sealing between blade and lower wall, avoid two
Gap is generated between person, and then avoids causing to vibrate at this;And wavy structure enables to air-flow in the second connection
It is steadily excessive when being flowed through at face, noise vibration will not be caused because air-flow is rapid.
The invention also includes a kind of range hood, the side set impeller including any of the above-described structure.
The side set impeller of above-mentioned each structure has the function of excellent against shock, noise-reducing, is very suitable for being applied to kitchen
Air cleaning facility field is particularly suitable for range hood.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
1. the side set impeller in the present invention can destroy the vortex in side set impeller channel, thus reduce vortex generation and
It falls off, to achieve the purpose that reduce noise, the design of waveform trailing edge keeps air-flow more smooth in impeller channel, can not only
Improve air quantity, moreover it is possible to reduce noise;
2. the Heterogeneous Permutation mode of blade enables to the interaction between blade and volute tongue to occur at different times,
The intensity for weakening active force, significantly reduces discrete noise;
It, can will be wrong 3. the different design of blade arrangement angle is so that side set paddle wheel plane is divided into multiple runners by blade
The time that tingia wheel inside vortex generates is divided into multiple periods, avoids the superposition generation strenuous vibration that is vortexed, and then avoid generating noise;
4. waveform sealing structure can be realized effective sealing between blade and up/down disk, avoid generating between the two
Gap, and then avoid causing to vibrate at this;And wavy structure enables to air-flow to flow through at the first/bis- joint face
Shi Pingwen is excessive, will not cause noise vibration because air-flow is rapid.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing is as a part of the invention, and for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is the side set impeller schematic diagram in one embodiment of the invention;
Fig. 2 is the first blade schematic diagram in one embodiment of the invention;
Fig. 3 is the side set impeller schematic diagram in one embodiment of the invention;
Fig. 4 is the second blade schematic diagram in one embodiment of the invention;
Fig. 5 is the side set impeller schematic diagram in one embodiment of the invention;
Fig. 6 is the motor schematic diagram in one embodiment of the invention;
Fig. 7 is the side set impeller bottom view schematic diagram in one embodiment of the invention;
Fig. 8 is the side set impeller top view illustration in one embodiment of the invention;
Fig. 9 is the range hood schematic diagram in one embodiment of the invention.
In figure: 1, upper disk;2, mid-game;3, lower wall;4, the first blade;41, the first blade inlet edge;42, the first blade trailing edge;
43, the first connecting pin;44, second connection end;5, the second blade;51, the second blade inlet edge;52, the second blade trailing edge;53,
One connection bump;54, the second connection is convex;6, motor;71, first connecting portion;711, fastener;72, second connecting portion;721, slot
Part;8, sealing device;81, wave crest;9, spiral case;10, check (non-return) valve;11, air inlet ring.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
To be mechanical connection, it is also possible to be electrically connected;It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment one
As shown in Figure 1 and Figure 2, the side set impeller in the present embodiment includes upper disk 1, mid-game 2 and the lower wall 3 of arranged in co-axial alignment, and two
Hold multiple first blades 4 for connecting respectively with upper disk 1 with mid-game 2, both ends connect respectively with mid-game 2 and lower wall 3 multiple second
Blade 5.Multiple first blade inlet edges 41 in the present embodiment are arranged to zigzag, and the first blade trailing edge 42 is close to mid-game 2
Side is arranged to waveform.By above-mentioned design, the vortex in side set impeller channel can be destroyed, to reduce the production of vortex
It gives birth to and falls off, achieve the purpose that reduce noise.The design of the waveform trailing edge keeps air-flow more smooth in impeller channel, not only
Air quantity can be improved, moreover it is possible to reduce noise.The both ends of first blade 4 pass through the first connecting pin 43 being arranged thereon and second connection end
44 respectively riveting be fixed on the connecting hole that corresponding position in disk 1 and mid-game 2 is arranged.
Side set impeller in the present embodiment further includes motor 6, and motor 6 is connect with mid-game 2 by connector, thus by motor
The kinetic energy of generation passes to other component for rotation.
Embodiment two
As shown in Figure 3, Figure 4, the difference of the side set impeller and above-described embodiment in the present embodiment is: multiple second blades
5 the second blade trailing edge 52 is all arranged to waveform.By above-mentioned design, side set impeller stream can more efficiently be destroyed
Vortex in road, to reduce the generation of vortex.Inventor is found through experiments that the structure design of the second blade can make wind
Amount promotes 0.6m3/ min, noise decline 0.5dB (A).As it can be seen that the structure is fairly obvious to the effect for mentioning air quantity, noise-reducing
's.
And 5 Heterogeneous Permutation of the first blade 4 and the second blade of the side set impeller in the present embodiment.That is the first blade 4 and
Two blades 5 are in be staggered relative to mid-game 2.The Heterogeneous Permutation mode of blade enables to the phase interaction between blade and volute tongue
At different times with generation, the intensity of active force is weakened, discrete noise is significantly reduced.And first in the present embodiment
The surface of blade 4 and the second blade 5 is coated with non-sticky oil coating, can not only noise reduction, moreover it is possible to it is effectively prevented greasy dirt attachment, it is convenient
Cleaning.The both ends of the second blade 5 pass through the first connection bump 53 and convex 54 points of the second connection being arranged thereon in the present embodiment
It Mao Jie not be fixed in mid-game 2 and lower wall 3.
Embodiment three
The difference of side set impeller and above-described embodiment in the present embodiment is: the arrangement angle of the first blade and the second blade
Degree is different;The design is so that side set paddle wheel plane is divided into multiple runners by blade, by the time of side set impeller inside vortex generation
It is divided into multiple periods, avoids the superposition generation strenuous vibration that is vortexed, and then avoid generating noise.Inventor is by a large amount of test hair
It is existing, the first blade and the second blade be staggered in the direction of the clock 2-6 ° when can obtain preferable noise reduction effect;Further, when
It is best that the angle is arranged to noise reduction effect when 3 ° of angles.
Structure also that the first blade is different from the size that the second blade is designed to length direction in the present embodiment.When
When the dimension scale in one blade and the second length of blade direction is 4:3, the phase between blade dimensions ratio and blade deflection angle
Mutually cooperation can obtain preferable noise reduction effect, and will not bring a negative impact to the air quantity of side set impeller.Further, first
The quantity of blade and the second blade is 60, side set impeller diameter is 255 millimeters, (including blade is long for side set impeller total height
Degree and disc thickness) be 139mm when the structure size side set impeller can obtain good using effect, be suitble to kitchen sky
It is used in gas cleaning equipment.
Example IV
As shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, the difference of side set impeller and above-described embodiment in the present embodiment is: side set
The motor 6 of impeller is connect with mid-game 2 by connector;Connector includes first connecting portion 71 and position on the axis of motor 6
In the second connecting portion 72 of 2 center location of mid-game, first connecting portion 71 and second connecting portion 72 can be ordinatedly detachably connected;
Preferably, the axis of motor 6 is first connecting portion;It is further preferred that being arranged in first connecting portion 71 and second connecting portion 72
There are mutually matched fastener 711 and slotware 721.The design, should so that can be realized reasonable connection between mid-game 2 and motor 6
The vibration friction that connection type can largely avoid junction from generating, and then avoid the noise generated at this;And the company
Mode kinetic energy transmission efficiency with higher is connect, the kinetic energy that motor generates can efficiently be passed to side set impeller.
The both ends of first blade of the side set impeller in the present embodiment pass through the first connecting pin being arranged thereon and second and connect
Connecing end, riveting is fixed on disk 1 and mid-game 2 respectively, and upper 1 outer end face of disk and the first connecting pin form the first concave-convex joint face,
And setting has wavy sealing device 8 on the first joint face, so that the first connecting pin is in the wave crest 81 of wave;It is excellent
Selection of land, sealing device are waveform sealing structure obtained after sealant coating;It is further preferred that sealing device is prefabricated
Part, the prefabricated component are bonded on the first joint face by sealant.Side set impeller upper lower burrs junction is due to prior art problem
Both the gap of 1mm or so will be generated, which can be realized effective sealing between blade and upper disk, avoid
Between generate gap, and then avoid causing to vibrate at this;And wavy structure enables to air-flow in the first joint face
It is steadily excessive when place flows through, noise vibration will not be caused because air-flow is rapid.
Embodiment five
The difference of side set impeller and above-described embodiment in the present embodiment is: the both ends of the second blade by being arranged thereon
The first connection bump and the second connection bump rivet be fixed in mid-game and lower wall respectively, lower wall outer end face connect convex with second
It rises and forms the second concave-convex joint face, and setting has wavy sealing device on the face, so that at the second connection bump
In the wave crest of wave;Preferably, sealing device is waveform sealing structure obtained after sealant coating;Further preferably
Ground, sealing device are prefabricated component, which is bonded on the second joint face by sealant.It is all provided at the both ends of side set impeller
Sealing between the first blade, the second blade and the disc being attached thereto can preferably be realized by setting sealing structure, be avoided at this
Overdose space is provided for vibration;In addition, can steadily excessively when being flowed through at the first joint face of air, the second joint face, reduction is made an uproar
Sound hidden danger.
As shown in figure 9, the invention also discloses a kind of range hood, spiral case 9, check (non-return) valve including the connection that cooperates
10, the side set impeller in air inlet ring 11 and the various embodiments described above.The range hood has the characteristics that air quantity is big, noise is small, can
Meet requirement of the air in kitchen environment to cleaning equipment.
A kind of side set impeller provided by the invention, the leading edge of at least one in multiple first blades and/or the second blade
It is arranged to zigzag, at least one section of the trailing edge of at least one in multiple first blades and/or the second blade is arranged to wave
Shape wave.The structure can destroy the vortex in side set impeller channel, to reduce the generation of vortex and fall off, to realize reduction
The purpose of noise, the design of waveform trailing edge keep air-flow more smooth in impeller channel, can not only improve air quantity, moreover it is possible to reduce
Noise;The Heterogeneous Permutation mode of blade enables to the interaction between blade and volute tongue just to occur at different times, to cut
The weak intensity of active force, significantly reduces discrete noise;The different design of blade arrangement angle is so that side set paddle wheel plane
Multiple runners are divided by blade, the time that side set impeller inside vortex generates is divided into multiple periods, avoid the superposition generation that is vortexed
Strenuous vibration, and then avoid generating noise.Waveform sealing structure can be realized effective sealing between blade and up/down disk,
It avoids generating gap between the two, and then avoids causing to vibrate at this;And wavy structure enable to air-flow first/
It is steadily excessive when being flowed through at two joint faces, noise vibration will not be caused because air-flow is rapid.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of side set impeller, upper disk, mid-game and lower wall including arranged in co-axial alignment, both ends connect with upper disk with mid-game more respectively
A first blade, multiple second blades that both ends are connect with mid-game and lower wall respectively, which is characterized in that multiple first blades and/
Or second the leading edge of at least one in blade be arranged to zigzag, at least one in multiple first blades and/or the second blade
At least one section of trailing edge be arranged to waveform.
2. side set impeller according to claim 1, it is characterised in that: at least one of the multiple first blade is close
The trailing edge of at least one of the side of mid-game and/or the second blade close to the side of lower wall is arranged to waveform.
3. side set impeller according to claim 1, it is characterised in that: at least one of the multiple first blade and/
Or second the trailing edge of at least one of blade be all arranged to waveform.
4. side set impeller according to claim 1, it is characterised in that: first blade and the second blade Heterogeneous Permutation;
Preferably, the surface of first blade and the second blade coats non-sticky oil coating.
5. side set impeller according to claim 1, it is characterised in that: the arrangement angle of first blade and the second blade
It is different;
Preferably, first blade and the second blade are staggered 3 ° of angles in the direction of the clock.
6. side set impeller according to claim 1, it is characterised in that: first blade and the second length of blade direction
Size is different;
Preferably, the dimension scale in first blade and the second length of blade direction is 4:3;
It is further preferred that the quantity of first blade and the second blade is 60;
Still further preferably, the side set impeller diameter is 255 millimeters.
7. side set impeller according to claim 1, it is characterised in that: the side set impeller further includes motor, the motor
It is connect with the mid-game by connector;
Preferably, the connector includes first connecting portion on the axis of motor and positioned at the of the mid-game center location
Two interconnecting pieces, first connecting portion and second connecting portion can be ordinatedly detachably connected;
It is further preferred that being provided with mutually matched fastener and slotware/slotware in the first connecting portion and second connecting portion
And fastener.
8. side set impeller according to claim 1-7, it is characterised in that: the both ends of first blade pass through it
First connecting pin of upper setting and second connection end rivet respectively to be fixed on disk and mid-game, and upper disk outer end face is connect with first
End forms the first concave-convex joint face, and setting has wavy sealing device on the first joint face, so that described first
Connecting pin is in the wave crest of wave;
Preferably, the sealing device is waveform sealing structure obtained after sealant coating;
It is further preferred that the sealing device is prefabricated component, prefabricated component is bonded on the first joint face by sealant.
9. side set impeller according to claim 1-8, it is characterised in that: the both ends of second blade pass through it
The first connection bump and the second connection bump of upper setting rivet respectively to be fixed in mid-game and lower wall, lower wall outer end face and second
Connection bump forms the second concave-convex joint face, and setting has wavy sealing device on the second joint face, so that institute
The second connection bump is stated to be in the wave crest of wave;
Preferably, the sealing device is waveform sealing structure obtained after sealant coating;
It is further preferred that the sealing device is prefabricated component, prefabricated component is bonded on the second joint face by sealant.
10. a kind of range hood, which is characterized in that have the side set impeller as described in claim 1-9 is any.
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