CN205136124U - Axial fan and axial compressor fan blade thereof - Google Patents
Axial fan and axial compressor fan blade thereof Download PDFInfo
- Publication number
- CN205136124U CN205136124U CN201520899969.7U CN201520899969U CN205136124U CN 205136124 U CN205136124 U CN 205136124U CN 201520899969 U CN201520899969 U CN 201520899969U CN 205136124 U CN205136124 U CN 205136124U
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- China
- Prior art keywords
- axial
- blade
- flow leaf
- flow
- leaf
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Abstract
The utility model discloses an axial fan and axial compressor fan blade thereof, axial compressor fan blade include blade (1), lee side (11) and windward side (12) of blade (1) are at the blade leading edge crossing contained angle theta that forms of department, contained angle theta is the acute angle. The utility model provides an axial compressor fan blade, the department makes lee side and windward side crossing through the leading edge at the blade, forms the contained angle theta of acute angle structure, has reduced the air current and to blade leading edge's impact when flowing in the blade, has effectively reduced the noise the when blade rotates, reduced air current turbulent flow degree, improved pneumatic performance, and then reduced axial compressor fan blade pivoted consumption.
Description
Technical field
The utility model relates to Fan Equipment technical field, particularly a kind of axial-flow blower and axial-flow leaf thereof.
Background technique
Existing exhaust apparatus adopts axial-flow blower mostly, and namely motor or other drive units drive axial-flow leaf to rotate, and produce larger air output.
In the process that axial-flow leaf rotates, fan blade leading edge directly contacts with air-flow, and the impact force of generation is comparatively large, makes blade produce noise; Further, air-flow produces turbulent flow under the effect of impact force, affects aeroperformance, makes the power consumption of axial-flow leaf larger.
Therefore, how to reduce noise, improve aeroperformance, reducing power consumption, is the art personnel problem demanding prompt solutions.
Model utility content
In view of this, the utility model provides a kind of axial-flow leaf, to reduce noise, improves aeroperformance, reduces power consumption.The invention also discloses a kind of axial-flow blower.
For achieving the above object, the utility model provides following technological scheme:
As can be seen from above-mentioned technological scheme, the axial-flow leaf that the utility model provides, comprises blade, and formation angle theta is intersected in the lee face of described blade and windward side thereof in front of the blade edge place;
Described angle theta is acute angle.
Preferably, in above-mentioned axial-flow leaf, described lee face is provided with arc shaped surface on the side of described blade inlet edge, and described arc shaped surface is crossing with described windward side.
Preferably, in above-mentioned axial-flow leaf, the thickness of described blade inlet edge is less than or equal to 3mm.
Preferably, in above-mentioned axial-flow leaf, there is between the axis of the wheel hub of described blade and described axial-flow leaf angle α; | α-90 ° | <15 °.
Preferably, in above-mentioned axial-flow leaf, the fillet radius r of the wheel hub joint of described blade and described axial-flow leaf
0>=5mm.
Preferably, in above-mentioned axial-flow leaf, the trailing edge of described blade is provided with recess.
Preferably, in above-mentioned axial-flow leaf, the inwall of described recess is cambered surface.
Preferably, in above-mentioned axial-flow leaf, described recess is more than or equal to R/6 to the outer rim distance of described blade, and wherein, R is the distance that the outer rim of described blade arrives the center of the wheel hub of described axial-flow leaf.
Preferably, in above-mentioned axial-flow leaf, the joint of the wheel hub of described blade and described axial-flow leaf is provided with stiffening rib;
Described stiffening rib is positioned at the position of described joint near described blade inlet edge.
Preferably, in above-mentioned axial-flow leaf, the quantity of described blade is less than or equal to 3.
Preferably, in above-mentioned axial-flow leaf, described angle theta is less than 70 °.
The utility model additionally provides a kind of axial-flow blower, the axial-flow leaf comprising drive unit and driven by described drive unit, and described axial-flow leaf is the axial-flow leaf as described in above-mentioned any one.
The axial-flow leaf that the utility model provides, makes lee face crossing with windward side by the leading edge place at blade, forms the angle theta of acuter angles, decreasing the impact of air-flow when flowing into blade to blade inlet edge, effectively reducing noise during blade rotation; Reduce turbulent air flow degree, improve aeroperformance, and then decrease the power consumption of axial-flow leaf rotation.
The utility model additionally provides a kind of axial-flow blower with above-mentioned axial-flow leaf.Because above-mentioned axial-flow leaf has above-mentioned technique effect, the axial-flow blower with above-mentioned axial-flow leaf also should have same technique effect, introduces no longer in detail at this.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the axial-flow leaf that Fig. 1 provides for the utility model embodiment;
The schematic side view of the axial-flow leaf that Fig. 2 provides for the utility model embodiment;
The structural representation of the blade inlet edge that Fig. 3 provides for the utility model embodiment.
Embodiment
The utility model discloses a kind of axial-flow leaf, to reduce noise, improve aeroperformance, reduce power consumption.The invention also discloses a kind of axial-flow blower.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1-Fig. 3, the structural representation of the axial-flow leaf that Fig. 1 provides for the utility model embodiment; The schematic side view of the axial-flow leaf that Fig. 2 provides for the utility model embodiment; The structural representation of the blade inlet edge that Fig. 3 provides for the utility model embodiment.
The axial-flow leaf that the utility model embodiment provides, comprises blade 1, and blade 1 has lee face 11 and windward side 12, and edge place is crossing in front of the blade lee face 11 and windward side 12 forms angle theta; Wherein, angle theta is acute angle, and the air-flow flowing into blade inlet edge place is flowed along lee face 11 or windward side 12 under the effect of angle theta.
The axial-flow leaf that the utility model embodiment provides, by making lee face 11 crossing with windward side 12 at the leading edge place of blade 1, form the angle theta of acuter angles, decreasing the impact of air-flow when flowing into blade 1 to blade inlet edge, effectively reducing noise when blade 1 rotates; Reduce turbulent air flow degree, improve aeroperformance, and then decrease the power consumption of axial-flow leaf rotation.
In order to avoid blade 1 is overall thinning, affect its working life.Lee face 11 is provided with arc shaped surface 111 on the side of blade inlet edge, and arc shaped surface 111 is crossing with windward side 12.By above-mentioned setting, ensure that the spacing (i.e. the thickness of blade 1) of lee face 11 and windward side 12, arc shaped surface 111 is crossing with windward side 12 forms angle theta, makes the leading edge of blade 1 thinning by arc shaped surface 111.Also can make lee face 11 that clinoplain is set near the side of blade inlet edge, clinoplain is crossing with windward side 12.By arc shaped surface 111 is arranged at lee face 11, the air-flow being flowed into blade 1 is more flowed along windward side 12, and then effectively improve the air output of the axial-flow leaf that the utility model embodiment provides by blade inlet edge.
Also can arrange arc shaped surface 111 in windward side 12 on the side of blade inlet edge, arc shaped surface 111 is crossing with lee face 11.
The thickness of blade inlet edge is less than or equal to 3mm.Wherein, the thickness of blade inlet edge can be the distance of arc shaped surface 111 away from the arrival windward side, side 12 of blade inlet edge, also can be the maximum ga(u)ge of blade inlet edge.By above-mentioned setting, ensure that the thinning of blade inlet edge, further reduce the impact of air-flow stream as blade 1.
As shown in Figure 2, between the axis of the wheel hub 2 of blade 1 and axial-flow leaf, there is angle α; | α-90 ° | <15 °.That is, the connecting of blade 1 and wheel hub 2 near vertical, effectively improve the join strength of blade 1 and wheel hub 2.
Further, as shown in Figure 1, the fillet radius r of wheel hub 2 joint of blade 1 and axial-flow leaf
0>=5mm.By above-mentioned setting, increase the fillet structure of blade 1 and wheel hub 2 joint, the stress avoiding joint is concentrated, and has the join strength further increasing blade 1 and wheel hub 2.
In order to reduce blade 1 weight, the trailing edge of blade 1 is provided with recess 13.Wherein, the strength demand of the size and location demand fulfillment blade 1 of recess 13.By arranging recess 13, alleviating the weight of blade 1, reducing the power consumption of axial-flow leaf.
In the present embodiment, the inwall of recess 13 is cambered surface, and then the stress that effectively prevent recess 13 place is concentrated, and effectively ensure that the intensity of blade 1.In the present embodiment, the inwall of recess 13 is the combined cambered surface that the different point cambered surface of multiple diameter is connected to form.Also can be set to the concave arc surface of single structure, introduce no longer in detail at this.
In the axial-flow leaf that the utility model embodiment provides, recess 13 is more than or equal to R/6 to the outer rim distance of blade 1, and wherein, R is the distance at the center of the wheel hub 2 of the outer rim arrival axial-flow leaf of blade 1.Be understandable that, the main acting region of the blade 1 of axial-flow leaf is positioned near fan blade outer rim place, and therefore, this region is the efficient acting district of blade 1.By above-mentioned setting, make recess 13 away from the outer rim of blade 1, avoid the area reducing efficient acting district, suppress trailing edge shunting, ensure that the air-out efficiency of blade 1.
As shown in Figure 1, blade 1 is provided with stiffening rib 3 with the joint of wheel hub 2; Stiffening rib 3 is positioned at the position of joint near blade inlet edge.By arranging stiffening rib 3, improve the join strength of wheel hub 2 and blade inlet edge.
The quantity of blade 1 is less than or equal to 3.In the present embodiment, the quantity of blade 1 is 3, and 3 blades 1 are evenly arranged on wheel hub 2, therefore, makes blade 1 have larger efficient acting district, further increases the air-out efficiency of blade 1.
In the present embodiment, angle theta is less than 70 °, further reduces the impact of air-flow when flowing into blade 1 to blade inlet edge.
The utility model embodiment still provides a kind of axial-flow blower, the axial-flow leaf comprising drive unit and driven by drive unit, and axial-flow leaf is as any one axial-flow leaf above-mentioned.Because above-mentioned axial-flow leaf has above-mentioned technique effect, the axial-flow blower with above-mentioned axial-flow leaf also should have same technique effect, tires out no longer one by one state at this.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (12)
1. an axial-flow leaf, comprises blade (1), it is characterized in that, formation angle theta is intersected in the lee face (11) of described blade (1) and windward side (12) thereof in front of the blade edge place;
Described angle theta is acute angle.
2. axial-flow leaf as claimed in claim 1, it is characterized in that, described lee face (11) is provided with arc shaped surface (111) on the side of described blade inlet edge, and described arc shaped surface (111) is crossing with described windward side (12).
3. axial-flow leaf as claimed in claim 1, it is characterized in that, the thickness of described blade inlet edge is less than or equal to 3mm.
4. axial-flow leaf as claimed in claim 1, is characterized in that having angle α between the axis of the wheel hub (2) of described blade (1) and described axial-flow leaf; | α-90 ° | <15 °.
5. axial-flow leaf as claimed in claim 1, is characterized in that, the fillet radius r of wheel hub (2) joint of described blade (1) and described axial-flow leaf
0>=5mm.
6. axial-flow leaf as claimed in claim 1, it is characterized in that, the trailing edge of described blade (1) is provided with recess (13).
7. axial-flow leaf as claimed in claim 6, it is characterized in that, the inwall of described recess (13) is cambered surface.
8. axial-flow leaf as claimed in claim 6, it is characterized in that, described recess (13) is more than or equal to R/6 to the outer rim distance of described blade (1), wherein, R is the distance that the outer rim of described blade (1) arrives the center of the wheel hub (2) of described axial-flow leaf.
9. axial-flow leaf as claimed in claim 1, is characterized in that, described blade (1) is provided with stiffening rib (3) with the joint of the wheel hub (2) of described axial-flow leaf;
Described stiffening rib (3) is positioned at the position of described joint near described blade inlet edge.
10. axial-flow leaf as claimed in claim 1, it is characterized in that, the quantity of described blade (1) is less than or equal to 3.
11. axial-flow leafs as described in any one of claim 1-10, it is characterized in that, described angle theta is less than 70 °.
12. 1 kinds of axial-flow blowers, the axial-flow leaf comprising drive unit and driven by described drive unit, is characterized in that, described axial-flow leaf is the axial-flow leaf as described in any one of claim 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520899969.7U CN205136124U (en) | 2015-11-12 | 2015-11-12 | Axial fan and axial compressor fan blade thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520899969.7U CN205136124U (en) | 2015-11-12 | 2015-11-12 | Axial fan and axial compressor fan blade thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205136124U true CN205136124U (en) | 2016-04-06 |
Family
ID=55621922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520899969.7U Withdrawn - After Issue CN205136124U (en) | 2015-11-12 | 2015-11-12 | Axial fan and axial compressor fan blade thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205136124U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257597A (en) * | 2015-11-12 | 2016-01-20 | 珠海格力电器股份有限公司 | Axial flow fan and axial flow fan blades thereof |
| CN113039366A (en) * | 2018-11-26 | 2021-06-25 | 三菱电机株式会社 | Impeller and axial flow blower |
| CN114412837A (en) * | 2022-01-24 | 2022-04-29 | 北京小狗吸尘器集团股份有限公司 | Diffuser, fan assembly with diffuser and dust collector |
| CN114658684A (en) * | 2022-01-24 | 2022-06-24 | 北京小狗吸尘器集团股份有限公司 | Moving impeller, fan assembly with moving impeller and dust collector |
-
2015
- 2015-11-12 CN CN201520899969.7U patent/CN205136124U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257597A (en) * | 2015-11-12 | 2016-01-20 | 珠海格力电器股份有限公司 | Axial flow fan and axial flow fan blades thereof |
| CN105257597B (en) * | 2015-11-12 | 2018-04-20 | 珠海格力电器股份有限公司 | Axial flow blower and its axial-flow leaf |
| CN113039366A (en) * | 2018-11-26 | 2021-06-25 | 三菱电机株式会社 | Impeller and axial flow blower |
| CN114412837A (en) * | 2022-01-24 | 2022-04-29 | 北京小狗吸尘器集团股份有限公司 | Diffuser, fan assembly with diffuser and dust collector |
| CN114658684A (en) * | 2022-01-24 | 2022-06-24 | 北京小狗吸尘器集团股份有限公司 | Moving impeller, fan assembly with moving impeller and dust collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160406 Effective date of abandoning: 20180420 |