CN209025884U - A kind of through-flow fan blade and the air conditioner with it - Google Patents
A kind of through-flow fan blade and the air conditioner with it Download PDFInfo
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- CN209025884U CN209025884U CN201821605505.0U CN201821605505U CN209025884U CN 209025884 U CN209025884 U CN 209025884U CN 201821605505 U CN201821605505 U CN 201821605505U CN 209025884 U CN209025884 U CN 209025884U
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Abstract
The utility model discloses a kind of through-flow fan blade and with its air conditioner, through-flow fan blade includes substrate, multiple first blades and multiple second blades that are installed on substrate；Circumferentially-spaced laying of multiple first blades along the first circumference, wherein the first blade has when rotated by the first pressure curved surface of wind pressure；Circumferentially-spaced laying of multiple second blades along the second circumference, second circumference be located in the first circumference and with the first circumferential concentric, wherein, the second blade has when rotated by the second pressure curved surface of wind pressure, and second pressure curved surface is opposite with the bending direction of first pressure curved surface.S type streamline runner is formed between first blade pressure surface and the second blade pressure surface of the utility model, the influence of the air inlet angle of attack and air-flow tail can be improved, the position of eccentric vortex and size inside fan blade are changed simultaneously, and then reduces blade surface circumference relative velocity, and reduce noise from air conditioner.
Description
Technical field
The utility model relates to air conditioner technical fields, and in particular to a kind of through-flow fan blade and the air conditioner with it.
Background technique
Through-flow fan blade in air conditioner is used to that air-flow and heat exchanger is driven to carry out heat exchange action, the bigger heat transfer effect of air quantity
It is more obvious, is widely used on the wall mounted machine of air-conditioning.Through-flow fan blade is welded by multiple middle section fan blades, and every section fan blade includes
Impeller disk and according to certain intervals arranged in multiple blades on disk, the blade is curved towards fan blade direction of rotation
It is bent.In fan blade rotary course, the flowing of the air-flow inside through-flow fan blade is unsteady flow, air-flow successively radial disengaging twice
Blade is easy to produce air-flow tail in exit region, and generates the air-flow angle of attack in Inlet Position；And have one inside through-flow fan blade
A very strong eccentric vortex, eccentric vortex makes fluid recoil return air interlobar part of the spiral case region close to volute tongue, due to air-flow flow inlet angle
It differs too big with blade inlet angle, is easy to form biggish low regime and whirlpool area in pressure face, influences the air quantity of indoor unit
Level, and generate biggish noise.
Utility model content
The purpose of this utility model is to provide a kind of through-flow fan blades, are held with solving existing through-flow fan blade in exit region
It is also easy to produce air-flow tail, generates the air-flow angle of attack in Inlet Position, the air quantity that eccentric vortex influences indoor unit is horizontal, and generates biggish
The problem of noise.
To achieve the above object, the utility model proposes technical solution it is as follows: a kind of through-flow fan blade, comprising: be equipped with logical
The substrate of air holes；Multiple first blades of installation on the substrate, multiple first blades are between the circumferential direction of the first circumference
Every laying, wherein first blade has when rotated by the first pressure curved surface of wind pressure；Installation on the substrate more
A second blade, multiple second blades are along the circumferentially-spaced laying of the second circumference, and second circumference is positioned at described first
In circumference and with first circumferential concentric, wherein second blade has when rotated by the second pressure curved surface of wind pressure,
And the second pressure curved surface is opposite with the bending direction of the first pressure curved surface.
According to through-flow fan blade provided by the utility model, original circle blade is improved to by the more of the first circle distribution
A first blade and multiple second blades by the second circle distribution, and the bending direction of the first blade and the second blade on the contrary,
So that forming S type streamline runner between the first blade pressure surface and the second blade pressure surface, the air inlet angle of attack and air-flow can be improved
The influence of tail changes simultaneously the position of eccentric vortex and size inside fan blade, and then reduces blade surface circumference relative velocity, and
Reduce noise from air conditioner.
In addition, can also have following additional technology according to a kind of through-flow fan blade of the utility model above-described embodiment
Feature:
An example according to the present utility model, the extended surface of the first surface of the first adjacent blade and the second blade
The extended surface of second curved surface is tangent.
An example according to the present utility model, the extended surface of the first surface of the first adjacent blade and the second blade
The extended surface of second curved surface has pre-determined distance h1.
An example according to the present utility model, the pre-determined distance h1 are 0-10mm.
An example according to the present utility model, first blade have the first end in the separate first circumference center of circle and lean on
The third end in nearly first circumference center of circle；Second blade has second end and close second circumference far from the second circumference center of circle
4th end in the center of circle；The line in the center of circle of the first end and first circumference and the third end and first circumference
The angle that the line in the center of circle is in is A1, the line in the center of circle of the first end and first circumference and the second end and institute
The be in angle of line for stating the center of circle of the first circumference is A2, wherein the A2 >=A1.
The maximum gauge of an example according to the present utility model, first blade is d1, and second blade is most
Greatly with a thickness of d2, wherein the d1 > d2.
An example according to the present utility model, the first pressure curved surface and the second pressure curved surface are circular arc
Face, chord length corresponding to the first pressure curved surface are L1, and chord length corresponding to the second pressure curved surface is L2；Wherein, institute
State d1/L1 < d2/L2.
An example according to the present utility model, first blade have the first end in the separate first circumference center of circle and lean on
The third end in nearly first circumference center of circle；Second blade has second end and close second circumference far from the second circumference center of circle
4th end in the center of circle；Multiple first ends surround first circumference, and multiple second ends surround second circumference, more
A third end surrounds third circumference, and multiple 4th ends surround the 4th circumference.
The diameter of an example according to the present utility model, first circumference is D1, and the diameter of the third circumference is
D3, wherein D3=(0.65-0.75) D1.
The diameter of an example according to the present utility model, second circumference is D2, and the diameter of the third circumference is
D3, wherein D2=(1.1-1.4) D3.
The diameter of an example according to the present utility model, the third circumference is D3, and the diameter of the 4th circumference is
D4, wherein D4=(0.7-0.85) D3.
An example according to the present utility model, two neighboring first blade respectively with first circumference center of circle
The angle of line is C1, and angle of two neighboring second blade respectively with the line in second circumference center of circle is C2,
In, C2=(1.5~8) C1.
An example according to the present utility model, first the vane size are greater than second the vane size.
The second of the utility model is designed to provide a kind of air conditioner, has as described in any one of above-mentioned technical proposal
Through-flow fan blade.
The advantages of above additional aspect, will be set forth in part in the description, and partially will become from the following description bright
It is aobvious, or recognized by the practice of the utility model.
Detailed description of the invention
Fig. 1 is a kind of front view of through-flow fan blade of the utility model embodiment；
Fig. 2 is first blade of the present embodiment and the S-shaped air duct schematic diagram that the second blade is formed；
Fig. 3 is the schematic diagram of A1, A2, C1, C2 of a kind of through-flow fan blade of the utility model embodiment；
Fig. 4 is the signal of d1, d2, L1, L2, D1, D2, D3, D4 of a kind of through-flow fan blade of the utility model embodiment
Figure；
Fig. 5 is the schematic diagram of the h1 of through-flow fan blade of the utility model embodiment a kind of；
Fig. 6 is the portion the A enlarged drawing of Fig. 5；
Fig. 7 is the front view of another through-flow fan blade of the utility model embodiment；
Fig. 8 is stereoscopic schematic diagram of first blade of the utility model embodiment on substrate.
In attached drawing, parts list represented by the reference numerals are as follows:
1, substrate；2, the first blade；3, the second blade；4, ventilation hole；5, the first circumference；6, the second circumference；7, third circle
Week；8, the 4th circumference；9, first pressure curved surface；10, second pressure curved surface；11, first end；12, second end；13, third end；
14, the 4th end.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
In conjunction with shown in attached drawing 1-8, a kind of through-flow fan blade, including substrate 1, the first blade 2 and second are present embodiments provided
Blade 3 etc..
As shown in figure 8, the substrate 1 of the present embodiment is equipped with ventilation hole 4, the shape of substrate 1 is annular in shape, multiple first blades
2 installation on substrate 1, multiple first blades 2 along the first circumference 5 circumferentially-spaced laying, and the first blade 2 have rotating
When by wind pressure first pressure curved surface 9, pressure curved surface towards through-flow fan blade entirety direction of rotation be bent, pressure curved surface along hang down
Directly being formed by shape in the direction of through-flow fan blade axis, to can be arc curve, parabola, spline curve one such.
One of improvement of through-flow fan blade of the present embodiment is, is also equipped with multiple second blades 3 on substrate 1, multiple
For second blade 3 along the circumferentially-spaced laying of the second circumference 6, the second circumference 6 is in the first circumference 5 and concentric with the first circumference 5,
Wherein, the second blade 3 has when rotated by the second pressure curved surface 10 of wind pressure, and second pressure curved surface 10 and first pressure are bent
The bending direction in face 9 on the contrary, the second pressure curved surface 10 of i.e. the second blade 3 towards the reversed of the direction of rotation of through-flow fan blade entirety
Bending.
As shown in Fig. 2, the structure, which to be formed between 2 pressure face of the first blade and the second blade pressure surface, is similar to S type
Streamline runner so that air inlet or air-out direction (wind direction is as shown in the arrow and lead in Fig. 2) along S type streamline runner, can
To improve the influence of the air inlet angle of attack and air-flow tail, the position of eccentric vortex and size inside fan blade are changed simultaneously, and then reduce leaf
Piece surface perimeter relative velocity, and reduce noise from air conditioner.
Specifically, the present embodiment the first blade 2 and the second blade 3 positional relationship can there are two types of, one is adjacent
The first blade 2 first surface extended surface and the second blade 3 the second curved surface extended surface it is tangent.Either such as Figures 5 and 6
It is shown, the extended surface of the second curved surface of the extended surface and the second blade 3 of the first surface of the first adjacent blade 2 have it is default away from
From h1, it is preferred that pre-determined distance h1 is 0-10mm, it is furthermore preferred that pre-determined distance h1 is 0-5mm, convenient for air in S type
Circulation in streamline runner.
In addition, changing the position of eccentric vortex inside fan blade to further improve the influence of the air inlet angle of attack and air-flow tail
And size, blade surface circumference relative velocity is reduced, reduces noise from air conditioner, the present embodiment is also to the first blade 2 and the second leaf
The specific constructive form and matching relationship of piece 3 make following improvement.
As shown in figure 3, first blade 2 of the present embodiment has first end 11 far from 5 center of circle of the first circumference and close to the
The third end 12 in one circumference, 5 center of circle；Second blade 3 has second end 12 and close second circumference 6 far from 6 center of circle of the second circumference
4th end 14 in the center of circle；The line in the center of circle of first end 11 and the first circumference 5 and third end 12 and the center of circle of the first circumference 5
The angle that line is in is A1, the line in the center of circle of first end 11 and the first circumference 5 and the center of circle of second end 12 and the first circumference 5
The be in angle of line be A2, wherein A2 >=A1.
As shown in figure 4, the maximum gauge of the first blade 2 is d1, the maximum gauge of the second blade 3 is d2, wherein d1 >
d2.Specifically, the first pressure curved surface 9 and second pressure curved surface 10 of the present embodiment are arc surface, 9 institute of first pressure curved surface
Corresponding chord length is L1, and chord length corresponding to second pressure curved surface 10 is L2；Wherein, d1/L1 < d2/L2.
First blade 2 of the present embodiment has first end 11 and close first circumference, 5 center of circle far from 5 center of circle of the first circumference
Third end 12；Second blade 3 has the 4th of second end 12 and close second circumference, 6 center of circle far from 6 center of circle of the second circumference
End 14；Multiple first ends 11 surround the first circumference 5, and multiple second ends 12 surround the second circumference 6, and multiple third ends 12 surround third
Circumference 7, multiple 4th ends 14 surround the 4th circumference 8.
As shown in figure 4, reduce noise from air conditioner to optimize the reduction blade surface circumference relative velocity of the present embodiment,
The present embodiment improves the size of the first circumference 5, the second circumference 6, third circumference 7 and the 4th circumference 8 as follows: the first circle
The diameter in week 5 is D1, and the diameter of third circumference 7 is D3, wherein D3=(0.65-0.75) D1.The diameter of second circumference 6 is D2,
The diameter of third circumference 7 is D3, wherein D2=(1.1-1.4) D3.The diameter of third circumference 7 is D3, the diameter of the 4th circumference 8
For D4, wherein D4=(0.7-0.85) D3.
In conjunction with shown in attached drawing attached drawing 3, in order to optimize the reduction blade surface circumference relative velocity of the present embodiment, reduce empty
Device noise is adjusted, angle of two neighboring first blade 2 of the present embodiment respectively with the line in 5 center of circle of the first circumference is C1, adjacent
Angle of two the second blades 3 respectively with the line in 6 center of circle of the second circumference is C2, wherein C2=(1.5~8) C1.
In addition, as shown in Figure 1, the quantity of second blade 3 of the present embodiment can be identical as the quantity of the first blade 2, it is more
A first blade 2 and multiple second blades 3 correspond, naturally it is also possible to the second blade 3 of appropriate reduction as shown in Figure 7
Quantity, the slightly poor blade construction with Fig. 1 of the reduction of speed effect and noise reduction effect of the structure type in certain Fig. 7.
Embodiment two
A kind of air conditioner (not shown) is present embodiments provided, there is the through-flow wind as described in above-described embodiment
Leaf in the specific installation site of air conditioner and connection structure etc. is that this field institute is ripe about the structure of air conditioner, through-flow fan blade
The technological means known, therefore the present embodiment is described not to this.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "inner", "outside" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device of indication or suggestion meaning must have a particular orientation, be constructed and be grasped with specific orientation
Make, should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicit includes one or more of the features.The meaning of " plurality " is two or more in the description of the present invention, unless
Separately there is clearly specific restriction.
In the present invention unless specifically defined or limited otherwise, the arts such as term " installation ", " connected ", " connection "
Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral etc..For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (14)
1. a kind of through-flow fan blade characterized by comprising
Substrate (1) equipped with ventilation hole (4)；
Multiple first blades (2) being mounted on the substrate (1), week of multiple first blades (2) along the first circumference (5)
It is laid to interval, wherein first blade (2) has when rotated by the first pressure curved surface (9) of wind pressure；
Multiple second blades (3) being mounted on the substrate (1), week of multiple second blades (3) along the second circumference (6)
It is laid to interval, second circumference (6) is located in first circumference (5) and concentric with first circumference (5), wherein
Second blade (3) has when rotated by the second pressure curved surface (10) of wind pressure, and the second pressure curved surface (10) with
The bending direction of the first pressure curved surface (9) is opposite.
2. through-flow fan blade according to claim 1, which is characterized in that the first surface of adjacent the first blade (2) prolongs
The extended surface for stretching the second curved surface of face and the second blade (3) is tangent.
3. through-flow fan blade according to claim 1, which is characterized in that the first surface of adjacent the first blade (2) prolongs
The extended surface for stretching the second curved surface of face and the second blade (3) has pre-determined distance h1.
4. through-flow fan blade according to claim 3, which is characterized in that the pre-determined distance h1 is 0-10mm.
5. through-flow fan blade according to claim 1, which is characterized in that first blade (2) has far from the first circumference
(5) first end (11) in the center of circle and the third end (13) close to the first circumference (5) center of circle；Second blade (3) has separate
4th end (14) of the second end (12) in the second circumference (6) center of circle and close second circumference (6) center of circle；
The line in the center of circle of the first end (11) and first circumference (5) and the third end (13) and first circumference
(5) angle that the line in the center of circle is in is A1, the line in the center of circle of the first end (11) and first circumference (5) and institute
The be in angle of line for stating the center of circle of second end (12) and first circumference (5) is A2, wherein the A2 >=A1.
6. through-flow fan blade according to claim 1, which is characterized in that the maximum gauge of first blade (2) is d1, institute
The maximum gauge for stating the second blade (3) is d2, wherein the d1 > d2.
7. through-flow fan blade according to claim 6, which is characterized in that the first pressure curved surface (9) and second pressure
Power curved surface (10) is arc surface, and chord length corresponding to the first pressure curved surface (9) is L1, the second pressure curved surface (10)
Corresponding chord length is L2；Wherein, the d1/L1 < d2/L2.
8. through-flow fan blade according to claim 1, which is characterized in that first blade (2) has far from the first circumference
(5) first end (11) in the center of circle and the third end (13) close to the first circumference (5) center of circle；Second blade (3) has separate
4th end (14) of the second end (12) in the second circumference (6) center of circle and close second circumference (6) center of circle；
Multiple first ends (11) surround first circumference (5), and multiple second ends (12) surround second circumference
(6), multiple third ends (13) surround third circumference (7), and multiple 4th ends (14) surround the 4th circumference (8).
9. through-flow fan blade according to claim 8, which is characterized in that the diameter of first circumference (5) is D1, described the
The diameter of three circumference (7) is D3, wherein D3=(0.65-0.75) D1.
10. through-flow fan blade according to claim 8, which is characterized in that the diameter of second circumference (6) is D2, described
The diameter of third circumference (7) is D3, wherein D2=(1.1-1.4) D3.
11. through-flow fan blade according to claim 8, which is characterized in that the diameter of the third circumference (7) is D3, described
The diameter of 4th circumference (8) is D4, wherein D4=(0.7-0.85) D3.
12. -11 described in any item through-flow fan blades according to claim 1, which is characterized in that two neighboring first blade
(2) angle respectively with the line in the first circumference (5) center of circle is C1, two neighboring second blade (3) respectively with institute
The angle for stating the line in the second circumference (6) center of circle is C2, wherein C2=(1.5~8) C1.
13. -11 described in any item through-flow fan blades according to claim 1, which is characterized in that the size of first blade (2)
Greater than the size of second blade (3).
14. a kind of air conditioner, which is characterized in that it has such as the described in any item through-flow fan blades of claim 1-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605505.0U CN209025884U (en) | 2018-09-27 | 2018-09-27 | A kind of through-flow fan blade and the air conditioner with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605505.0U CN209025884U (en) | 2018-09-27 | 2018-09-27 | A kind of through-flow fan blade and the air conditioner with it |
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| Publication Number | Publication Date |
|---|---|
| CN209025884U true CN209025884U (en) | 2019-06-25 |
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ID=66905267
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821605505.0U Active CN209025884U (en) | 2018-09-27 | 2018-09-27 | A kind of through-flow fan blade and the air conditioner with it |
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| CN (1) | CN209025884U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236732A (en) * | 2018-09-27 | 2019-01-18 | 珠海格力电器股份有限公司 | A kind of through-flow fan blade and the air conditioner with it |
| WO2021230480A1 (en) * | 2020-05-11 | 2021-11-18 | 엘지전자 주식회사 | Hairdryer |
-
2018
- 2018-09-27 CN CN201821605505.0U patent/CN209025884U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236732A (en) * | 2018-09-27 | 2019-01-18 | 珠海格力电器股份有限公司 | A kind of through-flow fan blade and the air conditioner with it |
| CN109236732B (en) * | 2018-09-27 | 2024-04-09 | 珠海格力电器股份有限公司 | Cross-flow fan blade and air conditioner with same |
| WO2021230480A1 (en) * | 2020-05-11 | 2021-11-18 | 엘지전자 주식회사 | Hairdryer |
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