Striped structure cross-flow fan blade

Abstract

The utility model discloses a kind of stripe structure cross-flow fan blades, it is related to air conditioner accessory technical field;Including fan blade base body, fan blade base body includes first mounting disc and second mounting disc, between first mounting disc and second mounting disc, a plurality of blades are fixedly installed, the windward surface and leeward surface of blade are all fixedly installed with main stripe, the windward surface and leeward surface of blade are all fixedly installed with several sub stripes, main stripe and sub stripe are mutually crossed and form grid-like structure, the section of main stripe is arc, the section of sub stripe is triangle;Grid-like stripe structure on the surface of blade can play guiding effect to airflow, reduce the adhesion and separation of airflow on the surface of blade, reduce turbulent loss, make airflow flow more smoothly, effectively improve the air volume and air pressure of fan blade, and then improve the overall operation efficiency of ventilation equipment.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning accessories technology, specifically a striped cross-flow fan blade. Background Technology

[0002] As a core component of ventilation equipment, the cross-flow fan blade's structural design directly affects the equipment's airflow, air pressure, and noise level. Traditional cross-flow fan blades typically employ a smooth blade surface structure. During high-speed rotation, turbulence easily arises when the airflow comes into contact with the blade surface. This not only causes airflow energy loss and reduces ventilation efficiency but also generates significant aerodynamic noise due to turbulence disturbances, affecting the user experience. To address these issues, a striped cross-flow fan blade with a specific structure is proposed. Utility Model Content

[0003] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a striped cross-flow fan blade, comprising a fan blade base, wherein the fan blade base comprises a first mounting plate and a second mounting plate, wherein a plurality of blades are fixedly installed between the first mounting plate and the second mounting plate, wherein main stripes are fixedly installed on both the windward and leeward sides of the blades, and a plurality of secondary stripes are fixedly installed on both the windward and leeward sides of the blades, wherein the main stripes and secondary stripes intersect each other to form a grid-like structure.

[0004] Preferably, the main stripe has an arc-shaped cross-section, and the secondary stripe has a triangular cross-section.

[0005] Preferably, a guide ring is fixedly installed at the middle end of the blade, and the outer arc surface of the guide ring is provided with a plurality of guide grooves, the inclination angle of the guide grooves being the same as that of the blade.

[0006] Preferably, a damping ring is fixedly installed on the outer ring surface of the first mounting plate and the second mounting plate.

[0007] Preferably, a pre-embedded groove is provided at the center of the surface of the first mounting plate, and a plurality of anti-slip stripes are fixedly installed on the inner ring surface of the pre-embedded groove.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] The grid-like stripe structure on the blade surface can guide the airflow, reduce the adhesion and separation of airflow on the blade surface, reduce turbulence loss, make the airflow smoother, effectively increase the air volume and wind pressure of the blade, and thus improve the overall operating efficiency of the ventilation equipment. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a side view of the present invention;

[0013] Figure 3 This is a schematic diagram of the blade structure in this utility model.

[0014] In the diagram: 100, first mounting plate; 200, second mounting plate; 300, guide ring; 400, guide groove; 500, blade; 600, embedded groove; 700, anti-slip stripe; 800, damping ring; 900, main stripe; 1000, secondary stripe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Figures 1-3 As shown, this utility model provides a striped cross-flow fan blade, including a fan blade base. The fan blade base includes a first mounting plate 100 and a second mounting plate 200. A plurality of blades 500 are fixedly installed between the first mounting plate 100 and the second mounting plate 200. Main stripes 900 are fixedly installed on both the windward and leeward sides of the blades 500. A plurality of secondary stripes 1000 are fixedly installed on both the windward and leeward sides of the blades 500. The main stripes 900 and the secondary stripes 1000 intersect to form a grid structure. The arc-shaped convex surface faces the windward side of the blades 500. The spacing of the main stripes 900 is set to 8 mm, and the height is 2 mm. The apex of the triangles faces the windward side of the blades 500. The spacing of the secondary stripes 1000 is set to 12 mm, and the height is 1.5 mm.

[0017] The blade 500 has main stripes 900 and secondary stripes 1000 on both the windward and leeward sides. The height of the main stripe 900 on the windward side is greater than that on the leeward side. This differentiated design can enhance the airflow guidance effect on the windward side and reduce airflow wake disturbance through the lower stripes on the leeward side.

[0018] The cross-section of the main stripe 900 is arc-shaped, while the cross-section of the secondary stripe 1000 is triangular.

[0019] A guide ring 300 is fixedly installed at the middle end of the blade 500. Several guide grooves 400 are opened on the outer arc surface of the guide ring 300. The inclination angle of the guide grooves 400 is the same as that of the blade 500. A damping ring 800 is fixedly installed on the outer ring surface of the first mounting plate 100 and the second mounting plate 200.

[0020] By adopting the above technical solution, the guide groove 400 on the surface of the guide ring 300 can guide the airflow to flow along a preset path and avoid the generation of local eddies. The damping ring 800 set on the surface of the first mounting plate 100 and the second mounting plate 200 can absorb the radial vibration force generated when the wind turbine base is running.

[0021] A pre-embedded groove 600 is provided at the center of the surface of the first mounting plate 100, and several anti-slip stripes 700 are fixedly installed on the inner ring surface of the pre-embedded groove 600.

[0022] The pre-embedded slot 600 allows the output shaft of the drive motor to be quickly inserted into the pre-embedded slot 600, thus completing the installation and fixing of the drive device and the first mounting plate 100. The anti-slip stripes 700 prevent the first mounting plate 100 and the second mounting plate 200 from detaching from the output end of the drive motor during rotation.

[0023] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A striped cross-flow fan blade, comprising a fan blade substrate, characterized in that: The blade base includes a first mounting plate (100) and a second mounting plate (200). A plurality of blades (500) are fixedly installed between the first mounting plate (100) and the second mounting plate (200). The windward and leeward sides of the blades (500) are both fixedly installed with main stripes (900). The windward and leeward sides of the blades (500) are both fixedly installed with a plurality of secondary stripes (1000). The main stripes (900) and the secondary stripes (1000) intersect each other to form a grid structure.

2. The striped cross-flow fan blade as described in claim 1, characterized in that, The main stripe (900) has an arc-shaped cross section, and the sub-stripe (1000) has a triangular cross section.

3. The striped cross-flow fan blade as described in claim 2, characterized in that, A guide ring (300) is fixedly installed at the middle end of the blade (500). The outer arc surface of the guide ring (300) is provided with a plurality of guide grooves (400). The inclination angle of the guide grooves (400) is the same as that of the blade (500).

4. The striped cross-flow fan blade as described in claim 1, characterized in that, Damping rings (800) are fixedly installed on the outer ring surfaces of the first mounting plate (100) and the second mounting plate (200).

5. The striped cross-flow fan blade as described in claim 4, characterized in that, A pre-embedded groove (600) is provided at the center of the surface of the first mounting plate (100), and a number of anti-slip stripes (700) are fixedly installed on the inner ring surface of the pre-embedded groove (600).

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