Integrated punch-formed fan blade

Abstract

The utility model relates to the technical field of fan blades, and discloses an integrated punch forming fan blade which is manufactured through a one-time punch forming process. The fan blade comprises a mounting plate, a connecting plate A, a connecting plate B and an air guide plate which are integrally formed from inside to outside, the mounting plate is a fan-shaped plate, the connecting plate A is a cambered surface type plate, the connecting plate B is a rectangular plate, the air guide plate is also a rectangular plate, and the rectangular air guide plate comprises a central part with an inverted-U-shaped section and outer horizontal folded edges located on the two sides of the central part; the fan blades are provided with reinforcing ribs A, reinforcing ribs B and reinforcing ribs C which protrude upwards relative to the fan blades. The fan blade is firmer, high in size precision, stable in operation and low in noise by adopting an integrated punch forming process; the fan-shaped mounting plate, the cambered surface connecting plate A, the rectangular connecting plate B, the inverted-U-shaped air guide plate and the reinforcing ribs are arranged, so that stable mounting and smooth airflow guiding are guaranteed, the overall strength is enhanced, and the ventilation efficiency and the air supply capacity are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of fan blade technology, specifically relating to a fan blade formed by one-piece stamping. Background Technology

[0002] In the field of fan technology, the design and manufacture of fan blades play a crucial role in the performance and reliability of fans. In the prior art, a fan blade with publication number CN111852938A includes a blade body with a C-shaped groove at one end and a locking through hole along the edge of the groove. The blade body consists of a horizontal mounting plate and an integrally formed air guide section. The air guide section has an arched cross-section with curved edges and a curved twisted edge. An n-shaped air inlet guide section is integrally formed near the curved twisted edge. Airflow enters through the n-shaped air inlet guide section, is guided by the arched air guide section, and exits the blade body from the curved edge. Furthermore, the air guide section has specific designs for twist angle, arch angle, and width ratio, and a reinforcing rib frame is provided on the horizontal mounting plate.

[0003] The aforementioned fan blade has a relatively simple structural design. Although its air guide section has an arched design, its effect on gathering and guiding airflow is relatively poor, resulting in limited air delivery distance and coverage. Moreover, in terms of structural reinforcement, only reinforcing ribs are installed on the horizontal mounting plate, which has limited improvement on the overall blade's bending and torsional resistance. It cannot comprehensively and effectively resist the centrifugal force and wind force generated during high-speed rotation, reduce blade deformation and damage, or optimize airflow distribution.

[0004] In view of this, we propose a fan blade formed by one-piece stamping. Utility Model Content

[0005] The present invention aims to solve the technical problem that the fan blades in the prior art have relatively poor effects in gathering and guiding airflow, and that the reinforcing ribs have limited effect on improving the bending and torsional resistance of the entire blade.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrally stamped fan blade, comprising a fan blade, which is manufactured by a one-time stamping process;

[0007] The fan blades include an integrally formed mounting plate, connecting plate A, connecting plate B, and air guide plate from the inside out. The mounting plate is a fan-shaped plate, the connecting plate A is an arc-shaped plate, the connecting plate B is a rectangular plate, and the air guide plate is also a rectangular plate. The rectangular air guide plate includes a central part with an inverted U-shaped cross section and outer horizontal folded edges located on both sides of the central part.

[0008] The fan blades are provided with reinforcing ribs A, B and C that protrude upwards relative to them.

[0009] As preferred, the mounting plate is horizontally arranged and two mounting holes are arranged on both sides of the mounting plate.

[0010] As preferred, the inner side end of the mounting plate is surrounded by a C-shaped clamping groove.

[0011] As preferred, the connecting plate A is gradually arranged downward from the mounting plate to the direction of the connecting plate B, and the outer diameter of the arc surface of the connecting plate A gradually expands from top to bottom.

[0012] As preferred, the reinforcing rib A and the reinforcing rib B are arranged on the top surface of the front end of the mounting plate, the connecting plate A, the connecting plate B and the air guide plate, and the reinforcing rib A and the reinforcing rib B are connected, the reinforcing rib A is T-shaped, the reinforcing rib B is V-shaped, and a V-shaped groove is surrounded between the reinforcing rib A and the reinforcing rib B.

[0013] As preferred, the reinforcing rib C is arranged on the top surface of the air guide plate and is in a wave shape, the crest of the wave is arranged at the middle part of the air guide plate, and the trough of the wave is arranged at the tail part of the air guide plate.

[0014] Compared with the prior art, the technical effects and advantages of the utility model are:

[0015] 1. The fan blade integrally formed by stamping is manufactured by one-time stamping forming process, reduces the manufacturing and assembly processes of multiple components, is suitable for large-scale production, can simplify the process, reduce the labor, equipment and time cost, avoids the weak connection of the integral forming, has strong centrifugal force, prolongs the service life, can guarantee the dimensional accuracy and consistency, runs stably and reduces the noise.

[0016] 2. The fan blade comprises a mounting plate, a connecting plate A, a connecting plate B and an air guide plate, the mounting plate is a fan-shaped plate, the mounting is convenient, accurate, reasonable in space utilization, the horizontal arrangement of the double holes and the C-shaped clamping groove ensures the stable mounting and reliable positioning; the connecting plate A is an arc surface type plate, guides the smooth airflow, enhances the structural strength and optimizes the airflow distribution to improve the air supply capacity. The connecting plate B is a rectangular plate, stably connects the components, has a regular shape and reduces the processing cost. The air guide plate comprises an inverted U-shaped center and an outer folded edge, can gather and guide the airflow, improves the air supply effect and the folded edge enhances the structural strength.

[0017] 3. The fan blade is provided with multiple reinforcing ribs, the reinforcing rib A and the reinforcing rib B enhance the strength of the front end of the blade, the V-shaped groove guides the airflow, improves the ventilation efficiency and reduces the noise, the reinforcing rib C strengthens the strength of the air guide plate, the wave-shaped structure optimizes the airflow distribution and improves the ventilation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of the utility model.

[0019] In the figure: 100, fan blade; 1, mounting plate; 2, connecting plate A; 3, connecting plate B; 4, air guide plate; 41, center part; 42, horizontal folding edge; 5, reinforcing rib A; 6, reinforcing rib B; 7, reinforcing rib C; 8, mounting hole; 9, C-shaped clamping groove; 10, V-shaped groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] The following will be combined Figure 1 The application will be further described in detail,

[0022] The embodiment of the application discloses a fan blade formed by one-step stamping, which comprises a fan blade 100 manufactured by one-step stamping process.

[0023] The one-step stamping process reduces the manufacturing and assembling processes of multiple parts, can produce a large number of fan blades 100 in a short time, greatly improves the production efficiency, and reduces the production cost. The integrated structure avoids the weak connection that may exist in the traditional assembly method, so that the overall structure of the fan blade 100 is more firm, can withstand greater centrifugal force and wind force in the high-speed rotation process, and reduces the risk of damage. The stamping process can ensure the dimensional accuracy and consistency of the fan blade 100, so that the fan runs more stably, reduces vibration and noise.

[0024] The fan blade 100 comprises a mounting plate 1, a connecting plate A 2, a connecting plate B 3 and an air guide plate 4 integrally formed from inside to outside, the mounting plate 1 is a fan-shaped plate, the connecting plate A 2 is an arc-shaped plate, the connecting plate B 3 is a rectangular plate, and the air guide plate 4 is also a rectangular plate, the rectangular air guide plate 4 comprises a center part 41 with an inverted U-shaped cross section and outer horizontal folding edges 42 located on both sides of the center part 41.

[0025] The mounting plate 1 is a fan-shaped plate, the design of the shape of the fan-shaped plate enables the fan blade 100 to be conveniently mounted on a motor shaft or other driving device, and through the specific angle and size of the fan-shaped plate, precise cooperation with the mounting part can be achieved. The fan-shaped plate can provide sufficient mounting area in limited space, and at the same time, it does not occupy too much space, so that the overall structure of the fan is more compact.

[0026] The connecting plate A2 is an arc-shaped plate. The arc-shaped plate design can guide the airflow to flow smoothly along the blade surface, reduce airflow turbulence and resistance, and improve the ventilation efficiency of the fan. The arc-shaped structure can enhance the bending and torsional resistance of the connecting plate A2, and improve the overall strength and stability of the fan blade 100.

[0027] The connecting plate B3 is a rectangular plate. The rectangular plate has good stability and rigidity, and can effectively connect the connecting plate A2 and the air guide plate 4, ensuring the overall structural integrity of the fan blade 100. The rectangular plate has a regular shape, which is convenient for stamping and subsequent processing, reducing the manufacturing difficulty and cost.

[0028] The inverted U-shaped center part 41 of the air guide plate 4 can effectively collect and guide the airflow, concentrating the airflow to the required area and improving the fan's air supply distance and coverage. The design of the outer horizontal folding edge 42 can increase the strength and rigidity of the air guide plate 4, preventing the air guide plate 4 from deforming under the action of high-speed airflow and ensuring the normal operation of the fan.

[0029] The mounting plate 1 is horizontally arranged and has two mounting holes 8 on both sides. The horizontally arranged fan-shaped plate makes the installation process more stable and convenient, and the design of the two mounting holes 8 can firmly install the fan blade 100 on the driving device through bolts or other connecting parts, ensuring the accuracy and reliability of the installation. The arrangement of the two mounting holes 8 can increase the connection stability between the fan blade 100 and the driving device, reduce the shaking and vibration during operation, and improve the service life of the fan.

[0030] The inner side of the mounting plate 1 is surrounded by a C-shaped clamping groove 9. The C-shaped clamping groove 9 can cooperate with the corresponding protrusions or structures on the driving device to play a positioning and fixing role, ensuring that the fan blade 100 can be accurately aligned and installed during the installation process, improving the installation efficiency and quality. The close cooperation between the C-shaped clamping groove 9 and the driving device can increase the connection strength between the fan blade 100 and the driving device, reducing the risk of loosening and falling during high-speed rotation.

[0031] The connecting plate A2 is gradually inclined downward from the mounting plate 1 to the connecting plate B3, and the outer diameter of the arc surface of the connecting plate A2 gradually expands from top to bottom. The downward inclination can guide the airflow to flow from the mounting plate 1 to the connecting plate B3 and the air guide plate 4, making the airflow distribution on the blade surface more uniform and improving the ventilation efficiency of the fan. The design of the arc surface outer diameter gradually expanding from top to bottom can gradually accelerate the airflow during the flow process, increase the air volume and pressure of the fan, and improve the air supply capacity of the fan.

[0032] The fan blade 100 is provided with a reinforcing rib A5, a reinforcing rib B6 and a reinforcing rib C7 which are upwardly protruding relative to the fan blade 100. The reinforcing rib A5 and the reinforcing rib B6 are located on the top surface of the front end of the mounting plate 1, the connecting plate A2, the connecting plate B3 and the air guide plate 4, and the reinforcing rib A5 and the reinforcing rib B6 are connected, the reinforcing rib A5 is T-shaped, the reinforcing rib B6 is V-shaped, and a V-shaped groove 10 is formed between the reinforcing rib A5 and the reinforcing rib B6. The reinforcing rib C7 is located on the top surface of the air guide plate 4 and is wave-shaped, the wave crest is located in the middle of the air guide plate 4, and the wave trough is located at the tail of the air guide plate 4.

[0033] The arrangement of the reinforcing ribs can increase the bending and torsion resistance of the fan blade 100, especially the reinforcing rib A5 and the reinforcing rib B6 at the front end of the blade can effectively resist the centrifugal force and wind force generated during high-speed rotation, reducing the deformation and damage of the blade. The design of the V-shaped groove 10 can guide the airflow to form a specific flow pattern on the surface of the blade, further improving the ventilation efficiency of the fan, while reducing the noise of the airflow. The wave-shaped reinforcing rib can increase the strength and rigidity of the air guide plate 4, prevent the air guide plate 4 from deforming under the action of the airflow, and ensure the stability of the air guide effect. The wave-shaped structure can make the airflow form a more complex flow pattern on the surface of the air guide plate 4, which helps to further optimize the airflow distribution and improve the ventilation efficiency of the fan.

[0034] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. An integrally stamped fan blade comprising a fan blade (100), characterized by: The fan blade (100) is manufactured by one-time stamping forming process; The fan blade (100) comprises an installation plate (1), a connecting plate A (2), a connecting plate B (3) and a guide plate (4) which are integrally formed from inside to outside, the installation plate (1) is a fan-shaped plate, the connecting plate A (2) is an arc surface type plate, the connecting plate B (3) is a rectangular plate, and the guide plate (4) is also a rectangular plate, the rectangular guide plate (4) comprises a center part (41) in inverted U-shaped cross section and outer horizontal folding edges (42) located on both sides of the center part (41). The fan blade (100) is provided with a reinforcing rib A (5), a reinforcing rib B (6) and a reinforcing rib C (7) which are upwardly protruded relative to the fan blade (100).

2. The integrally stamp-formed fan blade according to claim 1, characterized in that: The installation plate (1) is horizontally arranged, and two installation holes (8) are arranged on both sides of the installation plate (1).

3. The integrally stamp-formed fan blade according to claim 1, characterized in that: A C-shaped clamping groove (9) is formed around the inner side end of the installation plate (1).

4. The integrally stamp-formed fan blade according to claim 1, characterized in that: The connecting plate A (2) is gradually downwardly inclined from the installation plate (1) to the connecting plate B (3), and the arc surface outer diameter of the connecting plate A (2) is gradually enlarged from top to bottom.

5. The integrally stamp-formed fan blade of claim 1, wherein: The reinforcing rib A (5) and the reinforcing rib B (6) are located on the top surface of the front end of the installation plate (1), the connecting plate A (2), the connecting plate B (3) and the guide plate (4), the reinforcing rib A (5) and the reinforcing rib B (6) are connected, the reinforcing rib A (5) is T-shaped, the reinforcing rib B (6) is V-shaped, and a V-shaped groove (10) is formed between the reinforcing rib A (5) and the reinforcing rib B (6).

6. The integrally stamp-formed fan blade of claim 1, wherein: The reinforcing rib C (7) is located on the top surface of the guide plate (4) and is in wave shape, the wave top is located in the middle part of the guide plate (4), and the wave valley is located in the tail part of the guide plate (4).

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