CN205047519U - A axial compressor fan blade for on air conditioner - Google Patents
A axial compressor fan blade for on air conditioner Download PDFInfo
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- CN205047519U CN205047519U CN201520749348.0U CN201520749348U CN205047519U CN 205047519 U CN205047519 U CN 205047519U CN 201520749348 U CN201520749348 U CN 201520749348U CN 205047519 U CN205047519 U CN 205047519U
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Abstract
The utility model relates to an axial compressor fan blade for on air conditioner. Including the circular wheel hub who has rotation center, wheel hub's center is equipped with the axle sleeve that is used for fixed motor shaft, and evenly distributed has a plurality of blades on wheel hub's the lateral wall, and every blade has lee side and windward side, the lee side of blade goes up the concave point that evenly distributed has a plurality of segments shape, and the structure of every concave point is the same, and the degree of depth of concave point is 13~12 of vane thickness, and the diameter of concave point is 10~15 times of the degree of depth of concave point, all be equipped with the strengthening rib on wheel hub's the lateral wall between adjacent two blades, the outward flange of strengthening rib is equipped with round chamfer. The advantage of this axial compressor fan blade can reduce the noise that produces when using, strengthen wheel hub's intensity.
Description
Technical field
The utility model relates to field of ventilation equipment, particularly relates to the axial-flow leaf that a kind of air-conditioning uses.
Background technique
Injection moulding axial-flow leaf is especially conventional in the air-conditioning product of field of ventilation equipment, and the power for being inputted by motor transfers circulating of air to, thus carries out forced-convection heat transfer.
The axial-flow leaf of existing structure, generally comprise the circular hub with rotating center, the center of wheel hub is provided with the axle sleeve for fixed electrical machinery axle, the outer side wall of wheel hub is evenly distributed with multiple blade, blade has lee face and windward side, and upon rotation of the blade, the lee face of blade forms negative pressure, malleation is born in the windward side of blade, and one end that blade is connected with wheel hub outer side wall is that blade is inner.Present axial-flow leaf has the following disadvantages: one, because the lee face of fan blade is smooth surface, there is larger pressure difference during rotation between the windward side of blade and lee face, and rotate the noise whirlpool produced large, noise when causing fan blade to rotate is large; Two, injection moulding axial-flow leaf, for pursuing the frivolous of product, the intensity of product itself can be affected.
Summary of the invention
The purpose of this utility model is, for the deficiencies in the prior art, provides a kind of noise when can reduce blade rotary, strengthens the axial-flow leaf of product strength.
In order to realize above object, the utility model have employed following technological scheme: the axial-flow leaf on air-conditioning, comprises wheel hub, and the center of wheel hub is provided with the axle sleeve for fixed electrical machinery axle, the outer side wall of wheel hub is evenly distributed with multiple blade, and each blade has lee face and windward side; The lee face of blade is evenly distributed with multiple groove, and described groove is segment-shaped, and the structure of each groove is identical, and the degree of depth of groove is 1/3 ~ 1/2 of vane thickness, and the diameter of groove is 10 ~ 15 times of the degree of depth of groove; Stiffening rib is equipped with between two blades adjacent on the outer side wall of wheel hub.
As preferably, the width of stiffening rib is 1/10 ~ 1/20 of hub diameter, and the thickness of stiffening rib is 1/20 ~ 1/30 of hub diameter.
As preferably, the quantity of blade is 3, and the quantity of stiffening rib is 3.
As preferably, the outward edge of stiffening rib is provided with rounded corner.
As preferably, comprise the first wheel and the second wheel hub with same rotating center, wherein, the diameter of first wheel is less than the diameter of the second wheel hub, first wheel is positioned at the inner side of the second wheel hub, and the diameter length of first wheel is 25% ~ 40% of the diameter length of the second wheel hub.
Have employed the axial-flow leaf on air-conditioning of technique scheme, multiple groove is evenly distributed with at the lee face of fan blade, the air flowing of the rule produced when utilizing groove to be rotated by axial-flow leaf is broken up, reduce noise, the degree of depth of groove is 1/3 ~ 1/2 of vane thickness, the diameter of groove is the structural design of 10 ~ 15 times of the degree of depth of groove, and the noise produced when fan blade can be made to rotate farthest reduces; The effect arranging stiffening rib is: the intensity that can increase wheel hub on the one hand, the projection of stiffening rib can be utilized on the other hand the flowing of the air of rule to be broken up, reduce noise.
Accompanying drawing explanation
Fig. 1: the utility model structural representation;
Fig. 2: the utility model lee face structural representation (hydrosphere is not shown);
A-A place generalized section in Fig. 3: Fig. 2;
B place enlarged view in Fig. 4: Fig. 2;
Fig. 5: the utility model windward side structural representation.
Embodiment
The axial-flow leaf on air-conditioning as shown in Fig. 1 ~ Fig. 5, axial-flow leaf integrated injection molding, comprise the circular hub 1 with rotating center, the center (i.e. the center of axial-flow leaf) of wheel hub 1 is provided with the axle sleeve 2 for fixed electrical machinery axle, the outer side wall of wheel hub 1 is evenly distributed with multiple blade 3, blade 3 has lee face 32 and windward side 31, when blade 3 rotates, the lee face 32 of blade 3 forms negative pressure, and malleation is born in the windward side 31 of blade 3.The present embodiment Leaf quantity is 3, the lee face 32 of each blade is evenly distributed with multiple groove 4, the windward side 31 of blade 3 is smooth surface, described groove 4 array distribution, and the shape of groove 4 is segment-shaped (i.e. a ball cut down by plane a part).As shown in Figure 3, in the present embodiment, the height of segment is less than the radius of spheroid, the degree of depth of groove 4 is less than the thickness of blade 3, be specially groove 4 the degree of depth (segment high h) for groove 4 place place blade 3 thickness L 1/3 ~ 1/2 between, the diameter d of groove 4 is 10 ~ 15 times of depth of groove h, utilize the groove 4 of said structure to be broken up by the air draught of rule, reduce the noise produced when fan blade 3 rotates.
On the outer side wall of wheel hub 1, be provided with stiffening rib 5 between two adjacent blades 3, be specifically provided with 3 stiffening ribs 5, as shown in Figure 4, the outward edge of stiffening rib 5 is provided with rounded corner, arranges radian at the outward edge of stiffening rib 5, the flowing of the air of rule herein can be broken up, reduce noise further.The width c of stiffening rib 5 is 1/10 ~ 1/20 of wheel hub 1 diameter D, and the thickness b of stiffening rib 5 is 1/20 ~ 1/30 of wheel hub 1 diameter D, arranges the intensity that stiffening rib 5 contributes to the wheel hub 1 strengthening axial-flow leaf, improves the working life of fan blade.
For our company conventional model axial flow Φ 440-3-150, product diameter is Φ 440mm, be highly 150mm, blade quantity is 3, weight is 510g, except all physical dimension of salient point except stiffening rib is identical with conventional axial flow fan blade, adopt the axial-flow leaf of this patent structure compared with the axial-flow leaf of the same model size of conventional construction, refer to following performance comparison table.
| 440-3-150 | Level of noise dB | Maximum speed rpm | Air quantity m 3/h |
| Conventional construction | 52 | 2000 | 1930 |
| This patent structure | 49 | 2200 | 1950 |
Through testing property, the air quantity before improvement is 1930m3/h, and noise is 52dB, and fan blade runs up and can reach 2000rpm without damaged and distortion.Air quantity after the product improvement of same specification is 1950m3/h, and noise is 49dB, and fan blade runs up and can reach 2200rpm without damaged and distortion.On auditory perception, obviously feel after improvement to have desalinated the different sound of fan blade air-out, be better than kind front sound of the wind.
Further, the axial-flow leaf of the present embodiment comprises the first wheel 11 and the second wheel hub 12 with same rotating center, wherein, the diameter of first wheel 11 is less than the diameter of the second wheel hub 12, first wheel 11 is positioned at the inner side of the second wheel hub 12, and axle sleeve 2 is arranged on the center of first wheel 11, and stiffening rib 5 can be arranged on the outer side wall of first wheel 11 and the second wheel hub 12, in order to easily manufactured, be preferably and only stiffening rib 5 be set at the outer side wall of the second wheel hub 12.The object that first wheel 11 is set up in appropriate location inside the second wheel hub 12 is the intensity in order to significantly improve wheel hub 1, improves the working life of axial-flow leaf.The intensity of axial-flow leaf is relevant with the diameter between first wheel 11 and the second wheel hub 12, be preferably the diameter d of first wheel 11 be the diameter D of the second wheel hub 12 25% ~ 40% between.Take D as 160mm be example, the ratio between the diameter d of first wheel 11 and the diameter D of the second wheel hub 12 between 20% ~ 70% with 10% be a gradient increase progressively time axial-flow leaf the situation of destruction rotating speed, refer to following table.
| D value (D=160) | Destroy rotating speed (rpm) | D value | Destroy rotating speed |
| 20％×D | 3410 | 50％×D | 3370 |
| 30％×D | 3850 | 60％×D | 3102 |
| 40％×D | 3820 | 70％×D | 2820 |
Claims (5)
1. the axial-flow leaf on air-conditioning, comprise wheel hub (1), the center of wheel hub (1) is provided with the axle sleeve (2) for fixed electrical machinery axle, the outer side wall of wheel hub (1) is evenly distributed with multiple blade (3), each blade (3) has lee face (32) and windward side (31); It is characterized in that, the lee face (32) of blade is evenly distributed with multiple groove (4), described groove is segment-shaped, the structure of each groove (4) is identical, the degree of depth of groove (4) is 1/3 ~ 1/2 of blade (3) thickness, and the diameter of groove (4) is 10 ~ 15 times of the degree of depth of groove (4); Stiffening rib (5) is equipped with between two blades (3) adjacent on the outer side wall of wheel hub (1).
2. the axial-flow leaf on air-conditioning according to claim 1, it is characterized in that, the width of stiffening rib (5) is 1/10 ~ 1/20 of wheel hub (1) diameter, and the thickness of stiffening rib (5) is 1/20 ~ 1/30 of wheel hub (1) diameter.
3. the axial-flow leaf on air-conditioning according to claim 1, is characterized in that, the quantity of blade (3) is 3, and the quantity of stiffening rib (5) is 3.
4. the axial-flow leaf on air-conditioning according to claim 1, is characterized in that, the outward edge of described stiffening rib (5) is provided with rounded corner.
5. the axial-flow leaf on air-conditioning according to claim 1, it is characterized in that, comprise the first wheel (11) and the second wheel hub (12) with same rotating center, wherein, the diameter of first wheel (11) is less than the diameter of the second wheel hub (12), first wheel (11) is positioned at the inner side of the second wheel hub (12), and the diameter length of first wheel (11) is 25% ~ 40% of the diameter length of the second wheel hub (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749348.0U CN205047519U (en) | 2015-09-25 | 2015-09-25 | A axial compressor fan blade for on air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520749348.0U CN205047519U (en) | 2015-09-25 | 2015-09-25 | A axial compressor fan blade for on air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047519U true CN205047519U (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520749348.0U Active CN205047519U (en) | 2015-09-25 | 2015-09-25 | A axial compressor fan blade for on air conditioner |
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| Country | Link |
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| CN (1) | CN205047519U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608941A (en) * | 2020-05-25 | 2020-09-01 | 浙江上建风机有限公司 | Axial flow fan capable of preventing fan blades from being bent |
| EP3835594A3 (en) * | 2019-12-10 | 2021-07-28 | Regal Beloit America, Inc. | Fan hub, electric motor assembly and method of balancing a fan assembly |
| USD938011S1 (en) | 2019-12-10 | 2021-12-07 | Regal Beloit America, Inc. | Fan blade |
| USD938009S1 (en) | 2019-12-10 | 2021-12-07 | Regal Beloit America, Inc. | Fan hub |
| USD938010S1 (en) | 2019-12-10 | 2021-12-07 | Regal Beloit America, Inc. | Fan hub |
| USD952830S1 (en) | 2019-12-10 | 2022-05-24 | Regal Beloit America, Inc. | Fan shroud |
| US11371517B2 (en) | 2019-12-10 | 2022-06-28 | Regal Beloit America, Inc. | Hub inlet surface for an electric motor assembly |
| US11555508B2 (en) | 2019-12-10 | 2023-01-17 | Regal Beloit America, Inc. | Fan shroud for an electric motor assembly |
| CN117267172A (en) * | 2023-11-07 | 2023-12-22 | 湖南大川新型建材有限公司 | Golf spherical effect noise-reducing synergistic axial flow fan blade |
-
2015
- 2015-09-25 CN CN201520749348.0U patent/CN205047519U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3835594A3 (en) * | 2019-12-10 | 2021-07-28 | Regal Beloit America, Inc. | Fan hub, electric motor assembly and method of balancing a fan assembly |
| USD938011S1 (en) | 2019-12-10 | 2021-12-07 | Regal Beloit America, Inc. | Fan blade |
| USD938009S1 (en) | 2019-12-10 | 2021-12-07 | Regal Beloit America, Inc. | Fan hub |
| USD938010S1 (en) | 2019-12-10 | 2021-12-07 | Regal Beloit America, Inc. | Fan hub |
| USD952830S1 (en) | 2019-12-10 | 2022-05-24 | Regal Beloit America, Inc. | Fan shroud |
| US11371517B2 (en) | 2019-12-10 | 2022-06-28 | Regal Beloit America, Inc. | Hub inlet surface for an electric motor assembly |
| US11555508B2 (en) | 2019-12-10 | 2023-01-17 | Regal Beloit America, Inc. | Fan shroud for an electric motor assembly |
| USD1002834S1 (en) | 2019-12-10 | 2023-10-24 | Regal Beloit America, Inc. | Fan hub |
| US11859634B2 (en) | 2019-12-10 | 2024-01-02 | Regal Beloit America, Inc. | Fan hub configuration for an electric motor assembly |
| CN111608941A (en) * | 2020-05-25 | 2020-09-01 | 浙江上建风机有限公司 | Axial flow fan capable of preventing fan blades from being bent |
| CN111608941B (en) * | 2020-05-25 | 2021-06-08 | 浙江上建风机有限公司 | Axial flow fan capable of preventing fan blades from being bent |
| CN117267172A (en) * | 2023-11-07 | 2023-12-22 | 湖南大川新型建材有限公司 | Golf spherical effect noise-reducing synergistic axial flow fan blade |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |