CN210623190U - Blade-shaped structure of cross-flow fan - Google Patents
Blade-shaped structure of cross-flow fan Download PDFInfo
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- CN210623190U CN210623190U CN201921099877.5U CN201921099877U CN210623190U CN 210623190 U CN210623190 U CN 210623190U CN 201921099877 U CN201921099877 U CN 201921099877U CN 210623190 U CN210623190 U CN 210623190U
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Abstract
A blade-shaped structure of a cross-flow fan comprises a blade, wherein a plurality of bulges are respectively arranged on two sides of the blade, the bulges on the two sides of the blade are respectively arranged at intervals, more than one bulge part is arranged on each bulge, more than one section of outer chord section of each bulge is arranged, and each outer chord section comprises an arc section and a straight line section; the distance between the top end and the bottom end of the blade and one end of the bulge is L, and L is 1.5-5 mm; the bulges are provided with arc-shaped bulge sections, the distance between the circle centers of the bulges at the two sides of the blade is L1, and L1 is 0.5-4 mm. The utility model is provided with a plurality of bulges on both sides of the blade, so as to improve the stability of the product in injection molding, reduce the deformation and improve the product percent of pass; the strength of the product is increased, and the product is prevented from being damaged in the falling or transportation process; compared with the blade with the same traditional thickness, the blade with the same thickness is lighter in weight, and energy consumption is reduced.
Description
Technical Field
The utility model relates to a cross-flow fan specifically is a blade shape structure of cross-flow fan.
Background
Chinese patent document No. CN207814038U discloses a cross-flow fan blade, a cross-flow fan, an indoor unit, and an air conditioner in 2018.09.04. The cross-flow fan blade comprises a blade body, wherein the blade body comprises a blade back, and a rectification protrusion protruding out of the blade back is arranged on the blade back. The strength of the structure is not high enough. And thus, is in need of further improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a structural strength is higher, the cost of manufacture is lower, the product percent of pass is high, effectively solves the lower problem of traditional through-flow fan blade intensity, improves the blade intensity's through-flow fan's lobate shaped structure to overcome the weak point among the prior art.
The blade-shaped structure of the cross-flow fan designed according to the purpose comprises blades, wherein a plurality of bulges are respectively arranged on two sides of each blade, the bulges on the two sides of each blade are arranged at intervals, more than one bulge part is arranged on each bulge, and more than one section of outer chord section is arranged on each bulge and comprises an arc section and a straight section.
The distance between the top end and the bottom end of the blade and one end of the bulge is L, and L is 1.5-5 mm.
The bulges are provided with arc-shaped bulge sections, the distance between the circle centers of the bulges at the two sides of the blade is L1, and L1 is 0.5-4 mm.
The maximum distance between the two sides of the blade is L2, and L2 is equal to the maximum thickness of the blade.
A vertical distance L4 is formed between the convex part and the edge of the convex part, and L4 is 0.1-0.7mm
The protrusion is provided with a first outer chord section and a second outer chord section, the distance between the middle point of the first outer chord section and one end of the second outer chord section is L3, and L3 is 0.2-1 mm.
The first outer chord section is an arc section or a straight section, and R of the arc first outer chord section is equal to 0.2-0.5 mm.
The protrusion is provided with a tangent circular arc section and a tangent straight line section.
The utility model is provided with a plurality of bulges on both sides of the blade, so as to improve the stability of the product in injection molding, reduce the deformation and improve the product percent of pass; the strength of the product is increased, and the product is prevented from being damaged in the falling or transportation process; compared with the blade with the same traditional thickness, the blade with the same thickness is lighter in weight, and energy consumption is reduced.
Drawings
Fig. 1 and fig. 2 are schematic plan views of a blade according to an embodiment of the present invention.
In the figure, 1 is a blade, 1.1 is an edge, 2 is a bulge, and 2.1 is a bulge part.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1-fig. 1, a blade-shaped structure of a cross-flow fan comprises a blade 1, wherein a plurality of protrusions 2 are respectively arranged on two sides of the blade 1 through injection molding, the plurality of protrusions 2 on two sides of the blade 1 are respectively arranged at intervals, the protrusions 2 are provided with more than one protrusion part 2.1, the outer chord section of each protrusion 2 is provided with more than one section, and the outer chord section comprises an arc section and a straight section.
The distance between the top end and the bottom end of the blade 1 and one end of the bulge 2 is L, and L is 1.5-5 mm.
The bulges 2 are provided with arc-shaped bulge sections, the distance between the circle centers of the bulges 2 at the two sides of the blade 1 is L1, and L1 is 0.5-4 mm.
The maximum distance between the two sides of the blade 1 is L2, L2 being equal to the maximum thickness of the blade 1.
A vertical distance L4 is formed between the raised area 2.1 and the edge 1.1 of the raised area 2.1, L4 being 0.1-0.7mm
The bulge 2 is provided with a first outer chord section and a second outer chord section, the distance between the middle point of the first outer chord section and one end of the second outer chord section is L3, and L3 is 0.2-1 mm.
The first outer chord section is an arc section or a straight section, and the R of the arc first outer chord section is equal to 0.2-0.5 mm.
The bulge 2 is provided with a tangent circular arc section and a tangent straight line section.
The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The blade-shaped structure of the cross-flow fan comprises blades (1) and is characterized in that a plurality of protrusions (2) are arranged on two sides of each blade (1), the protrusions (2) on two sides of each blade (1) are arranged at intervals, more than one protrusion part (2.1) is arranged on each protrusion (2), more than one section of outer chord section of each protrusion (2) is arranged, and each outer chord section comprises an arc section and a straight section.
2. The blade-shaped structure of the cross-flow fan in claim 1, wherein the distance between the top end and the bottom end of the blade (1) and one end of the bulge (2) is L, and L is 1.5-5 mm.
3. The blade-shaped structure of the cross-flow fan as claimed in claim 2, wherein the protrusions (2) are provided with arc-shaped protrusion sections, the distance between the centers of the protrusions (2) at two sides of the blade (1) is L1, and L1 is 0.5-4 mm.
4. Blade structure of a crossflow fan in accordance with claim 3 characterized in that the maximum distance between the two sides of the blade (1) is L2, L2 being equal to the maximum thickness of the blade (1).
5. Blade-shaped structure of a cross-flow fan according to claim 4, characterized in that a vertical distance L4 is formed between the raised part (2.1) and the edge (1.1) of the raised part (2.1), and L4 is 0.1-0.7 mm.
6. The blade-shaped structure of the cross-flow fan as claimed in claim 1, wherein the protrusion (2) is provided with a first outer chord section and a second outer chord section, the distance between the midpoint of the first outer chord section and one end of the second outer chord section is L3, and L3 is 0.2-1 mm.
7. The blade-shaped structure of the cross-flow fan of claim 6, wherein the first outer chord section is a circular arc section or a straight line section, and R of the circular arc first outer chord section is equal to 0.2-0.5 mm.
8. Blade structure of a crossflow fan as claimed in any of claims 1 to 7, characterized in that the projection (2) is provided with tangential circular and straight segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921099877.5U CN210623190U (en) | 2019-07-12 | 2019-07-12 | Blade-shaped structure of cross-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921099877.5U CN210623190U (en) | 2019-07-12 | 2019-07-12 | Blade-shaped structure of cross-flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623190U true CN210623190U (en) | 2020-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921099877.5U Active CN210623190U (en) | 2019-07-12 | 2019-07-12 | Blade-shaped structure of cross-flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623190U (en) |
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2019
- 2019-07-12 CN CN201921099877.5U patent/CN210623190U/en active Active
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