CN204061321U - Axial-flow windwheel and the axial-flow blower with it - Google Patents
Axial-flow windwheel and the axial-flow blower with it Download PDFInfo
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- CN204061321U CN204061321U CN201420420583.9U CN201420420583U CN204061321U CN 204061321 U CN204061321 U CN 204061321U CN 201420420583 U CN201420420583 U CN 201420420583U CN 204061321 U CN204061321 U CN 204061321U
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Abstract
The utility model discloses a kind of axial-flow windwheel and there is its axial-flow blower, described axial-flow windwheel comprises: wheel hub and at least one blade, at least one blade is connected on the periphery wall of described wheel hub, the leaf top of each described blade at least partly there is trimming, described trimming is positioned on the pressure side of corresponding described blade, and described trimming tilts to extend from the described pressure side of described blade towards the direction of the suction surface of described blade from inside to outside.According to axial-flow windwheel of the present utility model, by the leaf top on pressure side arranges trimming, thus effectively can improve the leakage flow at leaf top place, improve the problem that runner is assembled, blocked to the low energy fluid caused due to leakage flow at leaf top place, thus reduce noise.
Description
Technical field
The utility model relates to field of ventilation equipment, especially relates to a kind of axial-flow windwheel.
Background technique
Point out in correlation technique, the online level of noise of air conditioner outdoor machine is bigger than normal is the large problem perplexing Air-conditioning Enterprise and user always, also be the bottleneck of air-conditioning technical, air conditioner outdoor machine carries out heat exchange by driven by motor axial-flow windwheel or fan blade, along with the raising of rotating speed, noise often also can increase, wherein the rotation of axial-flow windwheel or fan blade is one of Main Noise Sources of air conditioner outdoor machine, and the position that to be axial-flow windwheel or fan blade rotational speed maximum, leaf top, thus leaf top is the most responsive for the impact of air-supply air quantity and noise, there is the leakage flow from suction surface to pressure side in the leaf top of the wind wheel blade in correlation technique, thus cause the gathering of leaf top place low energy fluid, thus blocking runner, increase noise.
Model utility content
The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, the utility model is to propose a kind of axial-flow windwheel, and described axial-flow windwheel can improve the leakage flow problem at leaf top place, reduces noise.
The utility model also proposes a kind of axial-flow blower with above-mentioned axial-flow windwheel.
According to the axial-flow windwheel of the utility model first aspect, comprising: wheel hub; With at least one blade, at least one blade is connected on the periphery wall of described wheel hub, the leaf top of each described blade at least partly there is trimming, described trimming is positioned on the pressure side of corresponding described blade, and described trimming tilts to extend from the described pressure side of described blade towards the direction of the suction surface of described blade from inside to outside.
According to axial-flow windwheel of the present utility model, by the leaf top on pressure side arranges trimming, thus effectively can improve the leakage flow at leaf top place, improve the problem that runner is assembled, blocked to the low energy fluid caused due to leakage flow at leaf top place, thus reduce noise.
Alternatively, described trimming extends to the blade trailing edge of described blade from the blade inlet edge of described blade.
Or alternatively, described trimming extends to described blade trailing edge from the side of contiguous described blade inlet edge.
Particularly, the width H of described trimming meets: 1mm≤H≤5mm.
Alternatively, the length of described trimming is more than or equal to the half of described leaf top length.
Particularly, the angle α between the bearing of trend of described trimming and described pressure side meets: 3 °≤α≤45 °.
Alternatively, described angle α meets further: α=6 °.
Further, the edge of each described blade has bending part, and described bending part tilts to extend from described pressure side towards the direction of described suction surface from inside to outside, and wherein said trimming is formed on described bending part.
Alternatively, described trimming is the spaced apart distribution of multiple and described multiple trimming.
According to the axial-flow blower of the utility model second aspect, comprise the axial-flow windwheel according to the utility model first aspect.
According to axial-flow blower of the present utility model, by arranging the axial-flow windwheel of above-mentioned first aspect, thus improve the overall performance of axial-flow blower.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the side schematic view of the axial-flow windwheel according to the utility model embodiment;
Fig. 2 is the front schematic view of the axial-flow windwheel shown in Fig. 1;
Fig. 3 is the schematic rear view of the axial-flow windwheel shown in Fig. 2;
Fig. 4 is the sectional drawing along A-A line in Fig. 3;
Fig. 5 is the B portion enlarged view that Fig. 4 centre circle shows;
Fig. 6 is the front schematic view of the axial-flow windwheel according to another embodiment of the utility model;
Fig. 7 is the sectional drawing along C-C line in Fig. 6;
Fig. 8 is the D portion enlarged view that Fig. 7 centre circle shows.
Reference character:
100: axial-flow windwheel;
1: wheel hub;
211: suction surface; 212: pressure side;
221: blade inlet edge; 222: blade trailing edge; 223: leaf top; 224: blade root;
23: trimming; 24: bending part.
Embodiment
Be described below in detail embodiment of the present utility model, the example of embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to Fig. 1-Fig. 8, the axial-flow windwheel 100 according to the utility model first aspect embodiment is described.
As shown in Figure 1, according to the axial-flow windwheel 100 of the utility model first aspect embodiment, comprising: wheel hub 1 and at least one blade.
Wherein, at least one blade is connected on the periphery wall of wheel hub 1, such as in the example of Fig. 2 and Fig. 6, wheel hub 1 is constructed generally as cylindrical shape, the periphery wall of wheel hub 1 is furnished with equably three blades, the shape of three blades can be identical, and the angle between two of arbitrary neighborhood blades can be identical, wherein, each blade all extends from the periphery wall of wheel hub 1 to the direction away from wheel hub 1 central axis, and each blade four of being connected in turn by head and the tail are respectively edge limited and go out, be blade root 224 by the Edge definition be connected with wheel hub 1 periphery wall of blade, be leaf top 223 by an Edge definition of wheel hub 1 central axis away from blade of blade, two end points of blade root 224 are connected with two end points on leaf top 223 are corresponding respectively with the two other edge forming blade, and be defined as blade inlet edge 221 and blade trailing edge 222 respectively, when in the process that axial-flow windwheel 100 rotates, blade inlet edge 221 is positioned at the front of blade trailing edge 222 all the time, the surface towards sense of rotation (front such as shown in Fig. 2) of blade is defined as pressure side 212 or working surface, namely when axial-flow windwheel 100 rotates forward (such as rotating according to the clockwise direction shown in Fig. 2), surface definition towards air-out direction is pressure side 212, and the surface (back side that such as Fig. 3 is just shown) deviating from sense of rotation is defined as suction surface 211 or non-working surface, namely when axial-flow windwheel 100 rotates forward, the surface definition deviating from air-out direction is pressure side 212.Wherein, the definition of pressure side 212 and suction surface 211 is well known to those skilled in the art, and no longer describes in detail here.
Further, the leaf top 223 of each blade there is trimming 23 at least partly, trimming 23 is positioned on the pressure side 212 of corresponding blade, and trimming 23 tilts to extend from the pressure side 212 of blade towards the direction of the suction surface 211 of blade from inside to outside.Such as in the example of Fig. 4 and Fig. 5, the part on the contiguous leaf top 223 of blade is defined as leaf top, trimming 23 is positioned on the pressure side 212 at the leaf top of each blade, along direction from inside to outside, a part for pressure side 212 is tilted to extend excision to the direction of suction surface 211 gradually, thus trimming 23 can be obtained, the inward flange in the circumferential of trimming 23 is positioned on pressure side 212, the outward edge in the circumferential of trimming 23 can be positioned on leaf top 223 or be positioned at the position be close to very much with leaf top 223 on pressure side 212, and then the thickness at leaf top is reduced from inside to outside gradually, wherein, trimming 23 can run through whole leaf top from the blade trailing edge 222 of blade to the blade inlet edge 221 of blade in circumferential lengths, also the local at leaf top can only be occupied.Thus, by the leaf top on pressure side 212 arranges trimming 23, thus the noise problem produced because of leaf top 223 leakage flow can effectively be reduced.Here, it should be noted that, " interior " can be understood as the direction towards wheel hub 1 central axis, and its opposite direction is defined as " outward ", namely away from the direction of wheel hub 1 central axis.
According to the axial-flow windwheel 100 of the utility model embodiment, by the leaf top on pressure side 212 arranges trimming 23, thus effectively can improve the leakage flow at leaf top 223 place, improve the problem that runner is assembled, blocked to the low energy fluid caused due to leakage flow at leaf top 223 place, thus reduce noise.In addition, because processing is convenient in trimming 23, and the respective regions of the suction surface 211 of blade is not used as any change, thus is convenient to produce, manufacture and application.
In embodiments more of the present utility model, trimming 23 can run through whole leaf top from the blade trailing edge 222 of blade to the blade inlet edge 221 of blade in circumferential lengths, also only can occupy the local at leaf top.Such as in one of them example of the present utility model, as shown in Figure 6, trimming 23 is only one, and trimming 23 extends to the blade trailing edge 222 of blade from the blade inlet edge 221 of blade, now, trimming 23 can run through whole leaf top from the blade trailing edge 222 of blade to the blade inlet edge 221 of blade in the circumferential.Thus, the noise problem produced because of leaf top 223 leakage flow can effectively be reduced equally.
Certainly, the utility model is not limited thereto, in another example of the present utility model, as shown in Figure 2, trimming 23 is also only one, and a trimming 23 extends to blade trailing edge 222 from the side of blades adjacent leading edge 221, now trimming 23 only occupies the local at respective leaves top in the circumferential, and preferably, trimming 23 length is in the circumferential more than or equal to the half of leaf top 223 length, that is, trimming 23 length in the circumferential preferably only occupies the over half of the length at respective leaves top.Thus, the noise problem produced because of leaf top 223 leakage flow can effectively be reduced equally.Here, it should be noted that, the partial blade of the leaf top blades adjacent trailing edge 222 of blade of the prior art thicker at the thickness axially of wheel hub 1, the thinner thickness of the partial blade of leaf top blades adjacent leading edge 221, for the ease of processing, only trimming 23 can be set in the part of leaf top blades adjacent trailing edge 222.
In addition, trimming 23 can also be multiple and the spaced apart distribution of multiple trimmings 23 (scheming not shown), that is, multiple trimming 23 can intermittently, be spaced to turn up the soil and be distributed on the pressure side 212 at leaf top, preferably, the total length of multiple trimming 23 can be more than or equal to the half of leaf top 223 length, and that is, multiple trimming 23 total length in the circumferential preferably occupies the over half of the length at respective leaves top.Thus, the noise problem produced because of leaf top 223 leakage flow can effectively be reduced equally.
Particularly, with reference to Fig. 2, the width H of trimming 23 meets: 1mm≤H≤5mm.Wherein, " width of trimming 23 " refers to along the distance between the inward flange in the circumferential and the outward edge in the circumferential of trimming 23 of the radial direction of wheel hub 1, trimming 23, and the maximum value of width can be 5mm, and the minimum value of width can be 1mm.Such as in one of them example of the present utility model, trimming 23 is only one, and along from blade inlet edge 221 to the direction of blade trailing edge 222, the width of trimming 23 can increase gradually, such as, can increase to 5mm gradually from 1mm.Certainly, the utility model is not limited thereto, and in another example of the present utility model, trimming 23 is also only one, and along from blade inlet edge 221 to the direction of blade trailing edge 222, the width of trimming 23 is equal everywhere, and can be any one value between 1mm-5mm.Thus, the trimming 23 that after to cut width be the arrowband of 1mm-5mm along pressure side 212 from leaf top by the pressure side 212 at blade, self-assembling formation one is oblique, thus can effectively reduce the noise problem produced because of leaf top 223 leakage flow.
Further, meet with reference to Fig. 5 and Fig. 8, the angle α between the bearing of trend of trimming 23 and pressure side 212: 3 °≤α≤45 °.Wherein, due to the radial direction along wheel hub 1 from inside to outside, trimming 23 tilts to extend to the direction of suction surface 211 from pressure side 212, thus there is an angle between surface, trimming 23 place and the surface of pressure side 212, particularly, " angle " can be understood as the angle between the bearing of trend of the tangent line of the bearing of trend of the tangent line of the inward flange place pressure side 212 in the circumferential of trimming 23 and the outward edge place tangent plane in the circumferential of trimming 23, the maximum value of angle can be 45 °, and the minimum value of angle can be 3 °.Such as in one of them example of the present utility model, trimming 23 is only one, and along from blade inlet edge 221 to the direction of blade trailing edge 222, angle can increase gradually, such as, can increase to 45 ° gradually from 3 °.Certainly, the utility model is not limited thereto, in another example of the present utility model, trimming 23 is also only one, and along from blade inlet edge 221 to the direction of blade trailing edge 222, angle can be equal everywhere, and can be any one value between 3 °-45 °, preferably, angle α can meet: α=6 °.Thus, by ensureing that the bearing of trend of trimming 23 place plane and the outer peripheral bearing of trend of the pressure side 212 connected are the angle of 3 °-45 °, thus the noise problem produced because of leaf top 223 leakage flow can effectively be reduced.
In an embodiment of the present utility model, as Figure 1-Figure 5, the edge of each blade has bending part 24, and bending part 24 tilts to extend from pressure side 212 towards the direction of suction surface 211 from inside to outside, and wherein trimming 23 is formed on bending part 24.Particularly, along direction from inside to outside, bending part 24 can by the pressure side 212 at the leaf top of each blade towards suction surface 211 direction bend form, thus make the edge at leaf top tilt to extend from inside to outside, from pressure side 212 to the direction of suction surface 211, wherein, bending part 24 can run through whole leaf top from the blade trailing edge 222 of blade to the blade inlet edge 221 of blade in the circumferential, also only can occupy the local at leaf top.Further, trimming 23 is positioned on the pressure side 212 of bending part 24, tilt to extend excision to the direction of suction surface 211 gradually along direction from inside to outside, by the part on the pressure side 212 of bending part 24, thus trimming 23 can be obtained, the inward flange in the circumferential of trimming 23 is positioned on the pressure side 212 of bending part 24, trimming 23 outward edge in the circumferential can be positioned on leaf top 223 or be positioned at the position be close to very much with leaf top 223 on the pressure side 212 of bending part 24, thus the outer peripheral thickness of bending part 24 is reduced from inside to outside gradually.
Particularly, bending part 24 can be only one, and along from blade inlet edge 221 to the direction of blade trailing edge 222, the width of bending part 24 can increase gradually, and the angle between surface, bending part 24 place and the surface of pressure side 212 can increase gradually.Now, with reference to Fig. 5, angle α between the bearing of trend of trimming 23 and pressure side 212 can be understood as the angle α between the bearing of trend of the pressure side 212 of trimming 23 and bending part 24, the i.e. bearing of trend of the trimming 23 place plane angle that is with the outer peripheral bearing of trend of the pressure side 212 of the bending part 24 connected, and satisfied equally: 3 °≤α≤45 °.
Below with reference to Fig. 1-Fig. 8, the axial-flow windwheel 100 according to the multiple embodiment of the utility model is described.
Embodiment one,
With reference to Fig. 1-Fig. 5, axial-flow windwheel 100 comprises the identical blade of three shapes, particularly, the edge of each blade has bending part 24, bending part 24 tilts to extend from pressure side 212 towards the direction of suction surface 211 from inside to outside, and bending part 24 extends to blade trailing edge 222 from the side of blades adjacent leading edge 221, wherein trimming 23 is formed on bending part 24, and trimming 23 extends to the side of blades adjacent trailing edge 222 from the side of blades adjacent leading edge 221, bending part 24 is all substantially equal with the circumferential lengths of trimming 23, and equal 75% of leaf top 223 length, angle between the bearing of trend of pressure side 212 outer edge of trimming 23 and bending part 24 is 6 °.
Embodiment two,
As Figure 6-Figure 8, the present embodiment is roughly the same with the structure of embodiment one, wherein identical parts adopt identical reference character, difference is only: in embodiment one, the edge of each blade has bending part 24, and the edge of each blade does not have bending part 24 in the present embodiment two, and the structure of trimming 23 in embodiment 2 is different from the structure of the trimming 23 in embodiment one.
With reference to Fig. 6-Fig. 8, axial-flow windwheel 100 comprises the identical blade of three shapes, particularly, leaf top 223 place of each blade directly constructs trimming 23, and trimming 23 extends to blade trailing edge 222 from blade inlet edge 221, namely the length of trimming 23 equals the length on leaf top 223, and the angle between the bearing of trend of trimming 23 and pressure side 212 outer edge is 6 °.
According to the axial-flow blower (scheming not shown) of the utility model second aspect embodiment, comprise the axial-flow windwheel 100 according to the above-mentioned first aspect embodiment of the utility model.Wherein, axial-flow blower can be arranged on air conditioner outdoor machine (scheming not shown) or other field, axial-flow blower can also comprise: drive motor (scheming not shown) and controller (scheming not shown), controller is electrically connected with drive motor or communicates, the output shaft of drive motor is connected with wheel hub 1, controller can manipulate drive motor work, when drive motor works, drive motor can drive blade rotation by drive hub 1, thus realize the work of axial-flow windwheel 100.Here, it should be noted that, controller and drive motor are prior art.
According to the axial-flow blower of the utility model embodiment, by arranging the axial-flow windwheel 100 of above-mentioned first aspect embodiment, thus improve the overall performance of axial-flow blower.
In description of the present utility model, it will be appreciated that, term " " center ", " length ", " width ", " thickness ", " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Claims (10)
1. an axial-flow windwheel, is characterized in that, comprising:
Wheel hub; With
At least one blade, at least one blade is connected on the periphery wall of described wheel hub, the leaf top of each described blade at least partly there is trimming, described trimming is positioned on the pressure side of corresponding described blade, and described trimming tilts to extend from the described pressure side of described blade towards the direction of the suction surface of described blade from inside to outside.
2. axial-flow windwheel according to claim 1, is characterized in that, described trimming extends to the blade trailing edge of described blade from the blade inlet edge of described blade.
3. axial-flow windwheel according to claim 1, is characterized in that, described trimming extends to described blade trailing edge from the side of contiguous described blade inlet edge.
4. axial-flow windwheel according to claim 1, is characterized in that, the width H of described trimming meets: 1mm≤H≤5mm.
5. axial-flow windwheel according to claim 1, is characterized in that, the length of described trimming is more than or equal to the half of described leaf top length.
6. axial-flow windwheel according to claim 1, is characterized in that, the angle α between the bearing of trend of described trimming and described pressure side meets: 3 °≤α≤45 °.
7. axial-flow windwheel according to claim 6, is characterized in that, described angle α meets further: α=6 °.
8. the axial-flow windwheel according to any one of claim 1-7, it is characterized in that, the edge of each described blade has bending part, and described bending part tilts to extend from described pressure side towards the direction of described suction surface from inside to outside, and wherein said trimming is formed on described bending part.
9. axial-flow windwheel according to claim 1, is characterized in that, described trimming is the spaced apart distribution of multiple and described multiple trimming.
10. an axial-flow blower, is characterized in that, comprises the axial-flow windwheel according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420583.9U CN204061321U (en) | 2014-07-28 | 2014-07-28 | Axial-flow windwheel and the axial-flow blower with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420583.9U CN204061321U (en) | 2014-07-28 | 2014-07-28 | Axial-flow windwheel and the axial-flow blower with it |
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| Publication Number | Publication Date |
|---|---|
| CN204061321U true CN204061321U (en) | 2014-12-31 |
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| CN201420420583.9U Active CN204061321U (en) | 2014-07-28 | 2014-07-28 | Axial-flow windwheel and the axial-flow blower with it |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131997A (en) * | 2014-07-28 | 2014-11-05 | 广东美的制冷设备有限公司 | Axial flow wind wheel and axial flow fan provided with same |
| CN106593952A (en) * | 2017-01-12 | 2017-04-26 | 珠海格力电器股份有限公司 | Axial-flow fan blade, fan with same, and air conditioner outdoor unit |
-
2014
- 2014-07-28 CN CN201420420583.9U patent/CN204061321U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131997A (en) * | 2014-07-28 | 2014-11-05 | 广东美的制冷设备有限公司 | Axial flow wind wheel and axial flow fan provided with same |
| CN106593952A (en) * | 2017-01-12 | 2017-04-26 | 珠海格力电器股份有限公司 | Axial-flow fan blade, fan with same, and air conditioner outdoor unit |
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