CN220539935U - Three-dimensional space distortion efficient blade - Google Patents
Three-dimensional space distortion efficient blade Download PDFInfo
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- CN220539935U CN220539935U CN202322108997.XU CN202322108997U CN220539935U CN 220539935 U CN220539935 U CN 220539935U CN 202322108997 U CN202322108997 U CN 202322108997U CN 220539935 U CN220539935 U CN 220539935U
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- 230000007704 transition Effects 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000007423 decrease Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to the technical field of fan blades, and provides a three-dimensional space distortion efficient blade, which comprises a blade body and a connecting piece connected with one end of the blade body, wherein the key point is that: the blade body includes first plate body, second plate body and the third plate body that set gradually along blade width direction, and the connecting piece is connected with the link of first plate body, and the thickness of first plate body is reduced by the centre to both ends gradually along width direction, and one side that the second plate body was kept away from to the free end of first plate body is to the distortion of buckling in the front direction, and one side that the third plate body is close to the one end that the connecting piece was kept away from to the front buckling distortion of second plate body forms to S-shaped structure. The problems of how to increase the air quantity and the air pressure of the fan by changing the shape of the blades under the condition of not changing a transmission system and a power source in the related art are always one of the main directions of people.
Description
Technical Field
The utility model relates to the technical field of fan blades, in particular to a three-dimensional space distortion efficient blade.
Background
The fan is a mechanical energy which depends on input, improves gas pressure and discharges gas, is driven fluid machinery, the blade is an essential component of the fan, different blades are arranged on different fans, and how to increase the air quantity and the air pressure of the fan by changing the shape of the blades under the condition of not changing a transmission system and a power source is always one of main directions of people research.
Disclosure of Invention
The utility model provides a three-dimensional space distortion efficient blade, which solves the problem that how to increase the air quantity and the air pressure of a fan by changing the shape of the blade under the condition of not changing a transmission system and a power source in the related technology is always one of the main directions of people.
The technical scheme of the utility model is as follows: three-dimensional space twists high-efficient blade, including the blade body, with the connecting piece that blade body one end is connected, the key lies in: the blade body includes first plate body, second plate body and the third plate body that set gradually along blade width direction, and the connecting piece is connected with the link of first plate body, and the thickness of first plate body is reduced by the centre to both ends gradually along width direction, and one side that the second plate body was kept away from to the free end of first plate body is to the distortion of buckling in the front direction, and one side that the third plate body is close to the one end that the connecting piece was kept away from to the front buckling distortion of second plate body forms to S-shaped structure.
The blade further comprises a baffle connected with one end of the blade body far away from the connecting piece, and the edge of the baffle extends to the outer side of the edge of the blade body.
The ratio of the thickness h3 of the baffle plate to the length L of the blade body is 1: (960-970).
The end face of the blade body, which is far away from one end of the connecting piece, is an arc-shaped surface.
The terminal surface of first plate body is the arcwall face that is formed by positive pitch arc and back pitch arc end to end, and the concave depth h1 at positive pitch arc middle part is less than the concave depth h2 at back pitch arc middle part, and the width of first plate body is d1, d1: h2: h1 = (11-15): (2-3): 1.
the third plate body comprises a first rectangular section, a first trapezoid section, a transition section and a second trapezoid section, wherein the first rectangular section, the first trapezoid section, the transition section and the second trapezoid section are sequentially arranged from one end close to the connecting piece to the other end, the width of the first trapezoid section linearly decreases from one end close to the first rectangular section to the other end, the outer side face of the transition section is an arc face with the middle recessed towards the inner side, and the width of the second trapezoid section is smaller than the maximum width of the first trapezoid section.
The length of the first rectangular section is L1, the length of the first trapezoid section is L2, the length of the gradual change section is L3, and the maximum length of the second trapezoid section is L4, L1: l2: l3: l4= (1-2): (20-23): (4-6): 1.
the width of first plate body is d1, and the width of second plate body is d2, and the maximum width of third plate body is d3, and the length of blade body is L, d1: d2: d3 = (13-15): 1: (7-9), d1: l=1: (4-6).
The bending torsion angle alpha of the first plate body is 14-18 degrees, and the bending torsion angle beta of the third plate body is 8-12 degrees.
The connecting piece comprises two positioning sleeves and a connecting shaft, wherein the two positioning sleeves are arranged along the width direction of the first plate body, and the connecting shaft is rotationally connected between the two positioning sleeves.
The working principle and the beneficial effects of the utility model are as follows: the blade body is including the first plate body, second plate body and the third plate body that set gradually along blade width direction, and the connecting piece is connected with the link of first plate body, and the thickness of first plate body is reduced by the centre to both ends gradually along width direction, and one side that the second plate body was kept away from to the free end of first plate body is to the distortion of buckling of frontal direction, and one side that the third plate body is close to the one end that the connecting piece was kept away from to the positive distortion of buckling of second plate body forms the S-shaped structure. The blade with the shape can increase the air quantity and the air pressure of the fan under the condition of not changing a transmission system and a power source, and has better performance.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a schematic view of a first direction of the present utility model.
Fig. 2 is a schematic structural diagram of the second direction of the present utility model.
Fig. 3 is a schematic structural view of a third direction of the present utility model.
Fig. 4 is a front view of the present utility model.
Fig. 5 is a rear view of the present utility model.
Fig. 6 is a left side view of the present utility model.
Fig. 7 is a left side view of the blade body of the present utility model.
FIG. 8 is a schematic view of various parameters of a blade body according to the present utility model.
Fig. 9 is a top view of the present utility model.
Fig. 10 is a bottom view of the present utility model.
In the figure: 1. 1-1 parts of connecting pieces, 1-2 parts of positioning sleeves, connecting shafts, 2 parts of first plate bodies, 3 parts of second plate bodies, 4 parts of third plate bodies, 4-1 parts of first rectangular sections, 4-2 parts of first trapezoid sections, 4-3 parts of transition sections, 4-4 parts of second trapezoid sections, 5 parts of baffle plates, 6 parts of front arc lines, 7 parts of back arc lines.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments of the present utility model, are intended to be encompassed within the scope of the present utility model.
The embodiment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 9 and fig. 10, the three-dimensional space distortion efficient blade comprises a blade body and a connecting piece 1 connected with one end of the blade body, the blade body comprises a first plate body 2, a second plate body 3 and a third plate body 4 which are sequentially arranged along the width direction of the blade, the connecting piece 1 is connected with the connecting end of the first plate body 2, the thickness of the first plate body 2 gradually decreases from the middle to two ends along the width direction, one side of the free end of the first plate body 2, which is far away from the second plate body, is bent and twisted in the front direction, and one side, which is far away from the second plate body 3, of the third plate body 4, which is close to one end of the connecting piece 1, is bent and twisted in the front direction, which is far away from the second plate body 3, is formed into an S-shaped structure.
The blade further comprises a baffle 5 connected with one end of the blade body far away from the connecting piece 1, the edge of the baffle 5 extends to the outer side of the edge of the blade body, and the baffle 5 can play a role in noise reduction as shown in fig. 1, 2, 3, 4, 5 and 6. As shown in fig. 8, the ratio of the thickness h3 of the baffle 5 to the length L of the blade body is 1: (960-970). As shown in fig. 4, 5 and 8, the end surface of the blade body, which is far from the end of the connecting piece 1, is an arc-shaped surface.
As shown in fig. 7, the end face of the first board body 2 is an arc face formed by connecting the front arc line 6 and the back arc line 7 end to end, the concave depth h1 in the middle of the front arc line 6 is smaller than the concave depth h2 in the middle of the back arc line 7, and the width of the first board body 2 is d1, d1: h2: h1 = (11-15): (2-3): 1.
as shown in fig. 4 and 5, the third plate body 4 includes a first rectangular section 4-1, a first trapezoid section 4-2, a transition section 4-3 and a second trapezoid section 4-4 which are sequentially arranged from one end close to the connecting piece 1 to the other end, the width of the first trapezoid section 4-2 is linearly reduced from one end close to the first rectangular section 4-1 to the other end, the outer side surface of the transition section 4-3 is an arc surface with a concave middle to an inner side, and the width of the second trapezoid section 4-4 is smaller than the maximum width of the first trapezoid section 4-2.
As shown in fig. 4, 5 and 8, the length of the first rectangular section 4-1 is L1, the length of the first trapezoid section 4-2 is L2, the length of the transition section 4-3 is L3, and the maximum length of the second trapezoid section 4-4 is L4, L1: l2: l3: l4= (1-2): (20-23): (4-6): 1.
as shown in fig. 4, 5 and 8, the width of the first plate 2 is d1, the width of the second plate 3 is d2, the maximum width of the third plate 4 is d3, the length of the blade body is L, d1: d2: d3 = (13-15): 1: (7-9), d1: l=1: (4-6).
As shown in fig. 7, the bending torsion angle α of the first plate body 2 is 14 ° to 18 °, and the bending torsion angle β of the third plate body 4 is 8 ° to 12 °.
As shown in fig. 2, the connector 1 includes two positioning sleeves 1-1 arranged in the width direction of the first plate body 2, and a connecting shaft 1-2 rotatably connected between the two positioning sleeves 1-1. The blade body is suspended on the hub by the connecting piece 1 when the blade body is stationary, and the blade body can be straightened when in operation.
The blade with the shape can increase the air quantity and the air pressure of the fan under the condition of not changing a transmission system and a power source, and has the advantages of high efficiency, low noise and better performance.
Claims (10)
1. Three-dimensional space twists high-efficient blade, including blade body, connecting piece (1) be connected with blade body one end, its characterized in that: the blade body is including first plate body (2), second plate body (3) and third plate body (4) that set gradually along blade width direction, and connecting piece (1) are connected with the link of first plate body (2), and the thickness of first plate body (2) is reduced by the centre to both ends gradually along width direction, and one side that second plate body was kept away from to the free end of first plate body (2) is to the front direction distortion of buckling, and one side that third plate body (4) is close to connecting piece (1) was kept away from to one side that second plate body (3) is to the front distortion of buckling and is formed into S-shaped structure.
2. The three-dimensional space-twisted high efficiency blade of claim 1, wherein: the blade further comprises a baffle (5) connected with one end of the blade body far away from the connecting piece (1), and the edge of the baffle (5) extends to the outer side of the edge of the blade body.
3. The three-dimensional space-twisted high efficiency blade of claim 2, wherein: the ratio of the thickness h3 of the baffle (5) to the length L of the blade body is 1: (960-970).
4. The three-dimensional space-twisted high efficiency blade of claim 1, wherein: the end face of the blade body, which is far away from one end of the connecting piece (1), is an arc-shaped surface.
5. The three-dimensional space-twisted high efficiency blade of claim 1, wherein: the terminal surface of first plate body (2) is the arcwall face that is formed by positive pitch arc (6) and back pitch arc (7) end to end, and the concave depth h1 at the middle part of positive pitch arc (6) is less than the concave depth h2 at the middle part of back pitch arc (7), and the width of first plate body (2) is d1, d1: h2: h1 = (11-15): (2-3): 1.
6. the three-dimensional space-twisted high efficiency blade of claim 1, wherein: the third plate body (4) comprises a first rectangular section (4-1), a first trapezoid section (4-2), a transition section (4-3) and a second trapezoid section (4-4) which are sequentially arranged from one end close to the connecting piece (1) to the other end, the width of the first trapezoid section (4-2) is linearly reduced from one end close to the first rectangular section (4-1) to the other end, the outer side surface of the transition section (4-3) is an arc surface with the middle recessed towards the inner side, and the width of the second trapezoid section (4-4) is smaller than the maximum width of the first trapezoid section (4-2).
7. The three-dimensional space-twisting efficient blade of claim 6, wherein: the length of the first rectangular section (4-1) is L1, the length of the first trapezoid section (4-2) is L2, the length of the gradual change section (4-3) is L3, and the maximum length of the second trapezoid section (4-4) is L4, L1: l2: l3: l4= (1-2): (20-23): (4-6): 1.
8. the three-dimensional space-twisted high efficiency blade of claim 1, wherein: the width of the first plate body (2) is d1, the width of the second plate body (3) is d2, the maximum width of the third plate body (4) is d3, the length of the blade body is L, and d1: d2: d3 = (13-15): 1: (7-9), d1: l=1: (4-6).
9. The three-dimensional space-twisted high efficiency blade of claim 1, wherein: the bending torsion angle alpha of the first plate body (2) is 14-18 degrees, and the bending torsion angle beta of the third plate body (4) is 8-12 degrees.
10. The three-dimensional space-twisted high efficiency blade of claim 1, wherein: the connecting piece (1) comprises two positioning sleeves (1-1) which are arranged along the width direction of the first plate body (2), and a connecting shaft (1-2) which is rotatably connected between the two positioning sleeves (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322108997.XU CN220539935U (en) | 2023-08-07 | 2023-08-07 | Three-dimensional space distortion efficient blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322108997.XU CN220539935U (en) | 2023-08-07 | 2023-08-07 | Three-dimensional space distortion efficient blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220539935U true CN220539935U (en) | 2024-02-27 |
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ID=89966478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322108997.XU Active CN220539935U (en) | 2023-08-07 | 2023-08-07 | Three-dimensional space distortion efficient blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220539935U (en) |
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2023
- 2023-08-07 CN CN202322108997.XU patent/CN220539935U/en active Active
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