CN207315701U - Axial flow blower and there are its household electrical appliance - Google Patents
Axial flow blower and there are its household electrical appliance Download PDFInfo
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- CN207315701U CN207315701U CN201721318649.3U CN201721318649U CN207315701U CN 207315701 U CN207315701 U CN 207315701U CN 201721318649 U CN201721318649 U CN 201721318649U CN 207315701 U CN207315701 U CN 207315701U
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Abstract
The utility model discloses a kind of axial flow blower and there are its household electrical appliance, axial flow blower be used for household electrical appliance and including：First flabellum and the second flabellum, first flabellum include multiple sweepforwards and under convex the first blade, the leading edge of first blade gradually increases for the leading edge established angle of rear curved sweep and the first blade along the direction from blade root to blade tip, second flabellum includes multiple sweepback and the second convex blade, the leading edge established angle of second blade gradually increases along the direction from blade root to blade tip, the leading edge of second blade is linear, trailing edge is antecurvature sweep, second flabellum and the first flabellum are oppositely arranged and positioned at the air sides of the first flabellum, the direction of rotation of second flabellum is opposite with the direction of rotation of the second flabellum.Axial flow blower according to the present utility model, can obtain the outlet air wind field vertically, steadily, uniformly and without circular rector, improve the overall performance of household electrical appliance.
Description
Technical field
Household appliance technical field is the utility model is related to, more particularly, to a kind of axial flow blower and there are its household electrical appliance.
Background technology
Axial flow blower household electrical appliances market application at home and abroad is wider, is such as usually used in air-conditioning, refrigerator, electric fan, micro-wave oven system
Row product.The parameter such as air-out direction and outlet air uniformity is one of efficiency index of axial flow blower, especially in consentrated air supply and
Air-out direction and outlet air uniformity, stability for the scene of concentration members heat dissipation, even more concern axial flow blower.
However, the axial flow blower of field of household appliances is designed using single-stage flabellum more, the outlet air of single-stage fan leaf type axial flow blower is
Eddy flow outlet air with rotation collar vortex amount, meeting streamwise outflow after eddy flow and heat radiator fin or wall etc. are hit, therefore
It is difficult to effectively coordinate with radiator, so as to reduce heat dissipation effect, and will produce when hitting with radiator in eddy flow larger
Shock loss, trigger serious aerodynamic noise, influence use mood of the user for household electrical appliance.
Utility model content
The utility model is intended at least solve one of technical problem existing in the prior art.For this reason, the utility model exists
In proposing a kind of axial flow blower, the axial flow blower can obtain the outlet air wind field vertically, steadily, uniformly and without circular rector.
The utility model also proposes a kind of household electrical appliance with above-mentioned axial flow blower.
According to the axial flow blower of the utility model first aspect embodiment, the axial flow blower is used for household electrical appliance and bag
Include：First flabellum, first flabellum include multiple sweepforwards and under convex the first blade, the leading edge of first blade is rear curved
The leading edge established angle of sweep and first blade gradually increases along the direction from blade root to blade tip；Second flabellum, described
Two flabellums include multiple sweepback and the second convex blade, and the leading edge established angle of second blade is along from blade root to blade tip
Direction gradually increases, and the leading edge of second blade is linear, trailing edge is antecurvature sweep, second flabellum and described first
Flabellum is oppositely arranged and positioned at the air side of first flabellum, the direction of rotation of second flabellum and second flabellum
Direction of rotation is opposite.
According to the axial flow blower of the utility model embodiment, can obtain vertically, steadily, uniformly and the outlet air without circular rector
Wind field, allows the component that outlet air is radiated with needs such as radiators effectively to coordinate, improves radiating efficiency, reduces aerodynamic noise, and
And since axial flow blower is two level fan blade blower, so that the characteristic such as the wind pressure of axial flow blower and zero static flow can obtain
To greatly improving, and then the working speed of axial flow blower can be reduced, increase work air quantity, improve the globality of household electrical appliance
Energy.
In certain embodiments, the leading edge established angle of first blade along the direction from blade root to blade tip by 30 ° by
75 ° are gradually increased to, the leading edge established angle of second blade gradually increases to 65 ° along the direction from blade root to blade tip by 30 °.
In certain embodiments, the width of first blade gradually increases along the direction from blade root to blade tip, described
The width of second blade gradually increases along the direction from blade root to blade tip.
In certain embodiments, do not set between the outlet end face of first flabellum and the air inlet end face of second flabellum
Put guiding device, and the distance between the outlet end face of first flabellum and air inlet end face of second flabellum for 3mm~
8mm。
In certain embodiments, first flabellum further includes first wheel, and multiple first blades are located at described
On one wheel hub, second flabellum further includes the second wheel hub, and multiple second blades are located on second wheel hub, and described
The hub ratio of one flabellum and the hub ratio of second flabellum are respectively less than 0.28.
In certain embodiments, the first wheel and second wheel hub are hollow wheel hub, for driving described
The driver that one flabellum and second flabellum rotate is located in the first wheel and second wheel hub.
In certain embodiments, the radius of the first wheel is equal with the radius of second wheel hub, first fan
The outside diameter of leaf is equal with the outside diameter of second flabellum, and the blade quantity of first flabellum is more than the blade of second flabellum
Quantity, the working speed of first flabellum are equal with the working speed of second flabellum.
In certain embodiments, the outside diameter of first flabellum is less than the outside diameter of second flabellum.
In certain embodiments, first flabellum further includes the first wheel rim of tubular, and multiple first blades are located at
It is connected in first wheel rim and with the internal perisporium of first wheel rim, second flabellum further includes the second rim of tubular,
Multiple second blades are located in the second rim and are connected with the internal perisporium of the second rim.
According to the household electrical appliance of the utility model second aspect embodiment, including the axis according to the utility model first aspect
Flow fan.
Household electrical appliance according to the present utility model, by setting the axial flow blower of above-mentioned first aspect, so as to improve house
The overall performance of electrical appliance.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
Fig. 1 is the side projection figure according to the axial flow blower of the utility model one embodiment；
Fig. 2 is the stereogram of the first flabellum of the axial flow blower shown in Fig. 1；
Fig. 3 is the front projection figure of the first flabellum shown in Fig. 2；
Fig. 4 is the side projection figure of the first flabellum shown in Fig. 2, not shown first wheel rim；
Fig. 5 is a certain sectional view of the first blade shown in Fig. 4；
Fig. 6 is the stereogram of the second flabellum of the axial flow blower shown in Fig. 1；
Fig. 7 is the front projection figure of the second flabellum shown in Fig. 6；
Fig. 8 is the side projection figure of the second flabellum shown in Fig. 6, not shown second rim；
Fig. 9 is a certain sectional view of the second blade shown in Fig. 8；
Figure 10 is the side projection figure according to the axial flow blower of the utility model another embodiment；
Figure 11 is that air-flow when being worked according to the axial flow blower of the utility model embodiment moves towards schematic diagram.
Reference numeral：
Axial flow blower 100；
First flabellum 1；
First blade 11；First wheel 12；First wheel rim 13；
The suction surface 111 of first blade；The pressure face 112 of first blade；The leading edge 113 of first blade；
The blade root 114 of first blade；The blade tip 115 of first blade；
Second flabellum 2；
Second blade 21；Second wheel hub 22；Second rim 23；
The suction surface 211 of second blade；The pressure face 212 of second blade；The leading edge 213 of second blade；
The trailing edge 214 of second blade；The blade root 215 of second blade；The blade tip 216 of second blade.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model.For
The disclosure of simplified the utility model, is hereinafter described the component and setting of specific examples.Certainly, they are only and show
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or letter.This repetition is for purposes of simplicity and clarity, itself not indicate discussed various embodiments and/or set
Relation between putting.In addition, various specific techniques and the example of material that the utility model provides, but this area is common
Technical staff can be appreciated that the applicable property of other techniques and/or the use of other materials.
Axial flow blower 100 below with reference to Fig. 1-Figure 11 descriptions according to the utility model first aspect embodiment.
According to the axial flow blower 100 of the utility model first aspect embodiment, suitable for household electrical appliance, such as air-conditioning, electricity
Fan, refrigerator, micro-wave oven etc., for for the heat generating components radiating and cooling (such as refrigerator, micro-wave oven etc.) in household electrical appliance
Or provide a user wind (such as air-conditioning, electric fan etc.).
As shown in Fig. 1 and Figure 10, included according to the axial flow blower 100 of the utility model embodiment：First flabellum 1 and second
Flabellum 2, the second flabellum 2 are oppositely arranged with the first flabellum 1, that is to say, that the central shaft general alignment of two flabellums, in other words, the
The rotation axis general parallel orientation of one flabellum 1 and the second flabellum 2 and it is generally located on same straight line, wherein, the second flabellum 2 is positioned at the
The air side of one flabellum 1, that is to say, that the wind of the first flabellum 1 blowout can flow to the second flabellum 2, moreover, the second flabellum 2
The direction of rotation of direction of rotation and the first flabellum 1 is on the contrary, for example in the example depicted in fig. 11, from the inlet air of axial flow blower 100
Side (i.e. along direction from left to right) is observed, and the first flabellum 1 rotates counterclockwise, and the second flabellum 2 rotates clockwise.
As Figure 2-Figure 5, the first flabellum 1 include multiple sweepforwards and under convex the first blade 11, before the first blade 11
Edge 113 for rear curved sweep and the leading edge 113 of the first blade 11 established angle A1 along from blade root 114 to the direction of blade tip 115 by
It is cumulative big.Specifically, multiple first blade, 11 annular arrays, wherein each first blade 11 is sweepforward airfoil fan
(as shown in Figure 4), and the section of each first blade 11 is lower convex form (as shown in figure 5, the suction surface of the first blade 11
111 be lower convex surface, and the pressure face 112 of the first blade 11 is upper recess surface), and the leading edge 113 of each first blade 11 is rear curved
Sweep (as shown in Figure 2), so as to be effectively improved air flow state of first flabellum 1 at blade tip 115, further
Ground, the leaf of the established angle A1 of the leading edge 113 of each first blade 11 along the blade of blade root 114 to the first 11 from the first blade 11
The direction of point 115 gradually increases, so that the first flabellum 1 can be well adapted for the change of inlet air flow wind field, improves whole
Machine performance.
As shown in Fig. 6-Fig. 9, the second flabellum 2 includes multiple sweepback and the second convex blade 21, before the second blade 21
Edge 213 is linear, trailing edge 214 is antecurvature sweep, the established angle A2 of the leading edge 213 of the second blade 21 along from blade root 215 to
The direction of blade tip 216 gradually increases.Specifically, multiple second blade, 21 annular arrays, wherein each second blade 21 is equal
Section for airfoil blade (as shown in Figure 8), and each second blade 21 is convex shape (as shown in figure 9, second
The suction surface 211 of blade 21 is upper convex surface, and the pressure face 212 of the second blade 21 is concave surface) so that 21 He of the second blade
The bending direction of first blade 11 on the contrary, the established angle A2 of the leading edge 213 of the second blade 21 along from blade root 215 to blade tip 216
Direction gradually increase so that the second flabellum 2 can better adapt to the outlet air Wind field variety of the first flabellum 1, the second leaf
The leading edge 213 of piece 21 is configured to linear, and (as shown in Figure 6 and Figure 7, " linear " herein is not limited to tight as broad understanding
Linear in lattice meaning, generally linear shape) so that the air-flow that the second flabellum 2 can be sent out with the first flabellum 1
More efficiently coordinating, the trailing edge 214 of the second blade 21 is to be configured to antecurvature sweep (as shown in Figure 6 and Figure 7), so that the
Two flabellums 2 can more effectively control the outlet wind field of complete machine.
Here it is possible to understand, " sweepforward aerofoil profile " as described herein, " airfoil ", " lower convex form ", " convex-shaped
Shape ", " rear curved sweep ", " antecurvature sweep ", " established angle ", " blade tip ", " blade root ", " leading edge ", " trailing edge ", " suction surface ", " pressure
The concepts such as face " are well known to the skilled person, and I will not elaborate.
Thus, with reference to Figure 11, the axial flow blower 100 of said structure is configured to during work, the first flabellum 1 is blown out
The vortex shape outlet air that can be blown out with the second flabellum 2 of vortex shape outlet air mutually neutralize so that the overall blowout of axial flow blower 100 is flat
Surely, uniformly, the axial outlet air of acylic motion.That is, according to the axial flow blower 100 of the utility model embodiment, can obtain
Vertically, the outlet air wind field steadily, uniformly and without circular rector, allows the component that outlet air is radiated with needs such as radiators effectively to match somebody with somebody
Close, improve radiating efficiency, reduce aerodynamic noise, and since axial flow blower 100 is two level fan blade blower, so that axis stream wind
The characteristic such as the wind pressure of machine 100 and zero static flow can be largely increased, and then can reduce the work of axial flow blower 100
Rotating speed, increases work air quantity, especially increases the air quantity under zero static pressure scene, improve the overall performance of household electrical appliance.
In some embodiments of the utility model, the established angle A1 of the leading edge 113 of the first blade 11 is along from blade root 114
Gradually 75 ° are increased to by 30 °, the established angle A2 of the leading edge 213 of the second blade 21 is along from blade root 215 to the direction of blade tip 115
To the direction of blade tip 216 gradually 65 ° are increased to by 30 °.Thus, the second flabellum 2 can better adapt to the outlet air of the first flabellum 1
Wind field variety so that the more preferable phase of vortex shape outlet air that the vortex shape outlet air of the first flabellum 1 blowout can be blown out with the second flabellum 2
Mutually neutralize, so as to obtain more steady, the uniform and axial outlet air wind field without circular rector.
In some embodiments of the utility model, as shown in Figure 2 and Figure 6, the width of the first blade 11 (refers to the first blade
11 section chord length) gradually increase along from blade root 114 to the direction of blade tip 115, the width of the second blade 21 (refers to the second blade
21 section chord length) gradually increase along from blade root 215 to the direction of blade tip 216.As a result, axial flow blower 100 can be more
It is suitable for household electrical appliance well, obtains preferably air-supply and heat dissipation effect.
In some embodiments of the utility model, as shown in Fig. 1 and Figure 10, the outlet end face of the first flabellum 1 (refers to first
Flabellum 1 is near the end face of the second flabellum 2) (refer to the second flabellum 2 near the first flabellum 1 with the air inlet end face of the second flabellum 2
End face) between be not provided with guiding device, such as fixed guide vane piece or movable guide vane piece so that the outlet end face of the first flabellum 1 with
The distance between the air inlet end face of second flabellum 2 D can be processed as 3mm~8mm, in this way, axial flow blower 100 can be effectively improved
Structural compactness so that axial flow blower 100 is more applicable for household electrical appliance, especially small household appliance, and can have
Improve the complete machine wind pressure and air quantity of axial flow blower 100 in effect ground.
And due to being not provided with guiding device between the first flabellum 1 and the second flabellum 2, so that the first flabellum 1 is blown out
The vortex shape outlet air that can be blown out with the second flabellum 2 of vortex shape outlet air preferably mutually neutralize, it is more steady, uniformly to obtain
And the axial outlet air wind field without circular rector, and make it that the structure of axial flow blower 100 is simple, uncomplicated, its functional reliability is improved,
Reduce cost.Certainly, the utility model not limited to this, in the other embodiment of the utility model, above-mentioned distance D can also be set
More than 8mm is calculated as, is usually no more than two times of complete machine maximum gauge.
In some embodiments of the utility model, as shown in Figure 2 and Figure 6, the first flabellum 1 can also include first wheel
12, multiple first blades 11 are located on first wheel 12, and the second flabellum 2 can also include the second wheel hub 22, multiple second blades
21 are located on the second wheel hub 22, the hub ratio (i.e. the diameter ratio of the diameter of first wheel 12 and the first flabellum 1) of the first flabellum 1
0.28 is respectively less than with the hub ratio (i.e. the diameter ratio of the diameter of the second wheel hub 22 and the second flabellum 2) of the second flabellum 2, such as can
With less than 0.2.Thus, the first blade 11 and the second blade 21 are longer, so as to effectively improve the whole of axial flow blower 100
Machine wind pressure and air quantity so that axial flow blower 100 can be more applicable for household electrical appliance, there is provided preferably air-supply and heat dissipation effect.
Preferably, 12 and second wheel hub 22 of first wheel is hollow wheel hub, for driving the first flabellum 1 and the second flabellum
2 drivers (such as motor etc.) rotated are located in 12 and second wheel hub 22 of first wheel.Thus, it is possible to effectively improve axis stream wind
The structural compactness of machine 100 so that axial flow blower 100 is more applicable for household electrical appliance, especially small household appliance.Here,
It should be noted that the first flabellum 1 and the second flabellum 2 can be driven by different drivers respectively, such as two one-way motors,
Two individual event motors are respectively provided in 12 and second wheel hub 22 of first wheel at this time, and certainly, the first flabellum 1 and the second flabellum 2 are also
It can be driven by identical driver, such as an either-rotation motor, the either-rotation motor can be arranged in first wheel 12 with half, separately
Half is arranged in the second wheel hub 22.
In some embodiments of the utility model, the radius of first wheel 12 is equal with the radius of the second wheel hub 22, the
The outside diameter of one flabellum 1 is equal with the outside diameter of the second flabellum 2, and the blade quantity of the first flabellum 1 is more than the number of blade of the second flabellum 2
Amount, the working speed of the first flabellum 1 are equal with the working speed of the second flabellum 2.Thus, the air-flow that the first flabellum 1 is sent out can be with
The second flabellum 2 more swimmingly downstream flows, improve complete machine send out air-flow without circular rector, stationarity and uniformity, and
And the air-supply wind pressure and air quantity of axial flow blower 100 can be effectively improved, and resonance problem can be effectively prevented from, reduce complete machine and make an uproar
Sound, improves the structural strength of complete machine.
Here it is possible to understand, in the other embodiment of the utility model, the blade quantity of the first flabellum 1 and the
The blade quantity of two flabellums 2 can be with identical, such as all can be 2~16, moreover, the radius of first wheel 12 and second
The radius of wheel hub 22 can not also be equal, and the outside diameter of the first flabellum 1 can not also be equal with the outside diameter of the second flabellum 2, the first fan
The working speed of leaf 1 can not also be equal with the working speed of the second flabellum 2.In addition, it is necessary to explanation, as described herein
" outside diameter " refers to maximum gauge.
In the other embodiment of the utility model, the outside diameter of the first flabellum 1 is less than the outside diameter (figure of the second flabellum 2
It is not shown), that is to say, that the outside diameter of the inlet air side flabellum of axial flow blower 100 is smaller, and the outside diameter of air side flabellum is larger, in this way,
The overall blowing range of axial flow blower 100 can be effectively improved so that axial flow blower 100 is more applicable for household electrical appliance, obtains
Preferably heat dissipation and air-supply effect.
In some embodiments of the utility model, with reference to Fig. 2 and Fig. 6, the first flabellum 1 can also include the first of tubular
Wheel rim 13, multiple first blades 11 are located in the first wheel rim 13 and are connected with the internal perisporium of the first wheel rim 13, and the second flabellum 2 also wraps
The second rim 23 of tubular is included, multiple second blades 21 are located in second rim 23 and are connected with the internal perisporium of second rim 23.
That is, the first flabellum 1 is sweepforward aerofoil profile enclosed flabellum, the second flabellum 2 is airfoil enclosed flabellum (as shown in Figure 1).
Thus, the Axial-running Out wind characteristic of axial flow blower 100 is more preferable, can obtain the wind pressure and air quantity of higher, moreover, being taken turns by setting
Edge, can effectively improve the structural strength and disassembly of flabellum, it is more applicable for household electrical appliance.Certainly, the utility model
Not limited to this, in the other embodiment of the utility model, the first flabellum 1 and the second flabellum 2 can also be processed as open type leaf
Take turns (as shown in Figure 10), i.e., do not include wheel rim, preferably to meet actual requirement.
Here it is possible to understand, in the other embodiment of the utility model, first wheel 12, the second wheel hub 22, the
One wheel rim 13 and second rim 23 can be processed as non-cylindrical shape, preferably to meet actual requirement.In addition, wheel hub and phase
Answer blade to be connected in the form of spelling is inserted, can also be connected in the form of integrated injection molding, wheel rim and respective vanes also may be used
It is connected in the form of using spelling is inserted, can also be connected in the form of integrated injection molding.
Axial flow blower below with reference to Fig. 1-Fig. 9 and Figure 11 descriptions according to one specific embodiment of the utility model
100。
Axial flow blower 100 includes the first flabellum 1 and the second flabellum 2, the exit end face of the first flabellum 1 and the second flabellum 2
The distance between inlet end face D is 5mm, and the maximum outside diameter of the first flabellum 1 and the second flabellum 2 is equal and is 400mm, the first fan
The working speed of 1 and second flabellum 2 of leaf is equal and is 1000r/min, and the first flabellum 1 includes first wheel 12, multiple first
11 and first wheel rim 13 of blade, the second flabellum 2 include the second wheel hub 22, multiple second blades 21 and second rim 23, the first leaf
The established angle A1 of piece 11 increases to 70 ° from blade root 114 to blade tip 115 by 30 ° of bendings, and the established angle A2 of the second blade 21 is from blade root
215 increase to 65 ° to blade tip 216 by 30 ° of bendings.When axial flow blower 100 works, the first flabellum 1 rotates counterclockwise, the second flabellum
2 rotate clockwise, and air-flow is flowed into from the left side of axial flow blower 100, is blown out after sequentially flowing through the first flabellum 1 and the second flabellum 2.
According to the household electrical appliance of the utility model second aspect embodiment, such as air-conditioning, electric fan, refrigerator, micro-wave oven etc.,
Including the axial flow blower 100 according to the above-mentioned first aspect embodiment of the utility model.Here it is possible to understand, according to this reality
All it is for those of ordinary skills with other compositions and operation of the various household electrical appliance of new embodiment
Know, be not detailed herein.
According to the household electrical appliance of the utility model embodiment, by the axial flow blower for setting above-mentioned first aspect embodiment
100, so as to improve the overall performance of household electrical appliance, such as heat dissipation performance, low noise properties, wind pushing performance etc., allow user
More cosily use.
In the description of the utility model, it is to be understood that the orientation of instruction such as term " clockwise ", " counterclockwise " or
Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description,
Rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and operation, because
This is it is not intended that limitation to the utility model.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
It is connected directly, can also be indirectly connected by intermediary, can is the mutual of connection inside two elements or two elements
Interactively.For the ordinary skill in the art, it can understand that above-mentioned term is new in this practicality as the case may be
Concrete meaning in type.In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on "
Or " under " can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
Combine in an appropriate manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this area
Technical staff can by the different embodiments or example described in this specification and different embodiments or exemplary feature into
Row combines and combination.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from the principle and objective of the utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
- A kind of 1. axial flow blower, it is characterised in that the axial flow blower be used for household electrical appliance and including：First flabellum, first flabellum include multiple sweepforwards and under convex the first blade, after the leading edge of first blade is The leading edge established angle of curved sweep and first blade gradually increases along the direction from blade root to blade tip；Second flabellum, second flabellum include multiple sweepback and the second convex blade, the leading edge installation of second blade Angle gradually increases along the direction from blade root to blade tip, and the leading edge of second blade is linear, trailing edge is antecurvature sweep, institute The second flabellum is stated to be oppositely arranged with first flabellum and positioned at the air side of first flabellum, the rotation of second flabellum Direction is opposite with the direction of rotation of second flabellum.
- 2. axial flow blower according to claim 1, it is characterised in that the leading edge established angle of first blade is along from leaf Root gradually increases to 75 ° to the direction of blade tip by 30 °, and the leading edge established angle of second blade is along the side from blade root to blade tip Gradually 65 ° are increased to by 30 °.
- 3. axial flow blower according to claim 1, it is characterised in that the width of first blade is along from blade root to leaf The direction of point gradually increases, and the width of second blade gradually increases along the direction from blade root to blade tip.
- 4. axial flow blower according to claim 1, it is characterised in that the outlet end face of first flabellum and described second Guiding device, and the outlet end face of first flabellum and the air inlet of second flabellum are not provided between the air inlet end face of flabellum The distance between end face is 3mm~8mm.
- 5. axial flow blower according to claim 1, it is characterised in that first flabellum further includes first wheel, multiple First blade is located on the first wheel, and second flabellum further includes the second wheel hub, and multiple second blades are set On second wheel hub, the hub ratio of the hub ratio of first flabellum and second flabellum is respectively less than 0.28.
- 6. axial flow blower according to claim 5, it is characterised in that the first wheel and second wheel hub are sky Heart wheel hub, for driving the driver that first flabellum and second flabellum rotate to be located at the first wheel and described the In two wheel hubs.
- 7. axial flow blower according to claim 5, it is characterised in that the radius of the first wheel and second wheel hub Radius it is equal, the outside diameter of first flabellum is equal with the outside diameter of second flabellum, the blade quantity of first flabellum More than the blade quantity of second flabellum, the working speed phase of the working speed of first flabellum and second flabellum Deng.
- 8. axial flow blower according to claim 1, it is characterised in that the outside diameter of first flabellum is less than the described second fan The outside diameter of leaf.
- 9. according to the axial flow blower any one of claim 1-8, it is characterised in that first flabellum further includes tubular The first wheel rim, multiple first blades are located in first wheel rim and are connected with the internal perisporium of first wheel rim, institute State the second rim that the second flabellum further includes tubular, multiple second blades are located in the second rim and with described second The internal perisporium of wheel rim is connected.
- 10. a kind of household electrical appliance, it is characterised in that including the axial flow blower according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721318649.3U CN207315701U (en) | 2017-10-12 | 2017-10-12 | Axial flow blower and there are its household electrical appliance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110748984A (en) * | 2019-11-29 | 2020-02-04 | 广东美的制冷设备有限公司 | Air supply fan, air conditioner outdoor unit and air conditioner |
| CN110762645A (en) * | 2019-11-29 | 2020-02-07 | 广东美的制冷设备有限公司 | Air supply fan, air conditioner outdoor unit and air conditioner |
| CN111043062A (en) * | 2018-10-15 | 2020-04-21 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating fan |
| CN112137435A (en) * | 2020-08-28 | 2020-12-29 | 宁波方太厨具有限公司 | Impeller structure for cooking equipment and oven with same |
| CN113123977A (en) * | 2019-12-30 | 2021-07-16 | 广东美的白色家电技术创新中心有限公司 | Fan, air condensing units and air conditioner |
| CN114688049A (en) * | 2020-12-25 | 2022-07-01 | 广东美的白色家电技术创新中心有限公司 | Fan subassembly and air conditioner |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111043062A (en) * | 2018-10-15 | 2020-04-21 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating fan |
| CN110748984A (en) * | 2019-11-29 | 2020-02-04 | 广东美的制冷设备有限公司 | Air supply fan, air conditioner outdoor unit and air conditioner |
| CN110762645A (en) * | 2019-11-29 | 2020-02-07 | 广东美的制冷设备有限公司 | Air supply fan, air conditioner outdoor unit and air conditioner |
| CN113123977A (en) * | 2019-12-30 | 2021-07-16 | 广东美的白色家电技术创新中心有限公司 | Fan, air condensing units and air conditioner |
| CN113123977B (en) * | 2019-12-30 | 2023-08-29 | 广东美的白色家电技术创新中心有限公司 | Fan, air conditioner outdoor unit and air conditioner |
| CN112137435A (en) * | 2020-08-28 | 2020-12-29 | 宁波方太厨具有限公司 | Impeller structure for cooking equipment and oven with same |
| CN114688049A (en) * | 2020-12-25 | 2022-07-01 | 广东美的白色家电技术创新中心有限公司 | Fan subassembly and air conditioner |
| CN114688049B (en) * | 2020-12-25 | 2024-02-20 | 广东美的白色家电技术创新中心有限公司 | Fan assembly and air conditioner |
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