Fan blade for humidifier

Abstract

The utility model provides a fan blade for a humidifier, which comprises at least two blades and a mounting part, the at least two blades are sequentially arranged on the periphery of the outer side of the mounting part, and each blade comprises a windward side and a leeward side. The edge of the end, away from the installation part, of each blade is provided with a folded edge facing the leeside. By means of the structure, the strength of the blades can be enhanced, the mechanical performance of the blades can be improved, the blades can bear larger wind power, meanwhile, wind resistance is reduced, the air flowing efficiency is improved, the performance of the humidifier is improved, and the maintenance cost and the production cost are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of humidifiers, in particular to a fan blade used for a humidifier. Background Art

[0002] A humidifier is a device that adds water vapor to the air, primarily used to increase air humidity and improve air quality. The core component of a humidifier is the fan blade, and the structure and material of the fan blades directly affect the performance and cost of the humidifier. Existing humidifier fan blade structures typically design the blades to be very thin to reduce wind resistance. This design can reduce energy consumption and improve the efficiency of the humidifier. However, due to the thin blades of this design, the mechanical strength is poor, the blades are insufficiently strong, easily deformed, and easily damaged, requiring frequent replacement, which increases maintenance costs. Therefore, existing humidifier fan blade structures have obvious deficiencies in mechanical strength and durability. Utility Model Content

[0003] The utility model provides a fan blade for a humidifier, which is used to solve the defects of insufficient mechanical strength and durability of fan blades in the prior art, thereby improving the mechanical strength and durability of the fan blades, optimizing the performance of the humidifier, and improving the user experience.

[0004] The utility model provides a fan blade for a humidifier, comprising a blade and a mounting portion, wherein the blade is provided in at least two pieces, and the at least two blades are sequentially arranged in a circumferential direction outside the mounting portion, the blade comprising a windward surface and a leeward surface, and an edge of the blade away from one end of the mounting portion is provided with a folded edge facing the leeward surface.

[0005] According to a fan blade provided by the utility model, the connection portion between the blade and the mounting portion is designed to be an arc curve.

[0006] According to a fan blade provided by the utility model, a U-shaped protrusion is provided at the edge of the leeward side close to the blade.

[0007] According to the fan blade provided by the utility model, the number of the blades is 7.

[0008] According to a fan blade provided by the utility model, the blade includes a first edge, a second edge and a third edge, the intersection of the first edge and the second edge is the first endpoint, the intersection of the second edge and the third edge is the second endpoint, any plane perpendicular to the rotation axis of the mounting portion is the radial plane of the mounting portion, and the angle between the line connecting the first endpoint and the second endpoint and the radial plane is 20 to 22 degrees.

[0009] According to a fan blade provided by the utility model, the blade includes a first edge, a second edge and a third edge, the intersection of the first edge and the second edge is a first endpoint, the intersection of the second edge and the third edge is a second endpoint, and the length of the line connecting the first endpoint and the second endpoint in the direction of the rotation axis of the mounting portion is 40 to 45 mm.

[0010] According to a fan blade provided by the present invention, the thickness ratio of the U-shaped protrusion of the blade to the portion of the blade without the U-shaped protrusion is 1.25 to 1.45.

[0011] According to a fan blade provided by the utility model, the connection portion between the blade and the mounting portion is designed to be an S-shaped curve.

[0012] According to a fan blade provided by the present invention, the blade includes a first edge, a second edge and a third edge, and the first edge is provided with a thinning portion.

[0013] The fan blades for a humidifier provided by the utility model have at least the following beneficial effects: through the above-mentioned structure, the strength of the blades can be increased, and their mechanical properties can be improved, so that they can withstand greater wind force, while reducing wind resistance, improving air flow efficiency, improving the performance of the humidifier, and reducing maintenance costs and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a top view of an embodiment of a fan blade provided by the present invention.

[0016] Figure 2 yes Figure 1 A perspective view of the fan blade shown.

[0017] Figure 3 yes Figure 2 A partial enlarged view of part A is shown.

[0018] Figure 4 yes Figure 1 A cross-sectional view of the fan blade shown.

[0019] Figure 5 yes Figure 4 A partial enlarged view of part B is shown.

[0020] Figure 6 yes Figure 1Side view of the fan blade shown.

[0021] Figure 7 It is a three-dimensional diagram of an embodiment of a fan blade provided by the present invention.

[0022] Reference numerals:

[0023] Blade 1, mounting portion 2, folded edge 3, U-shaped protrusion 4, first edge 11, second edge 12, third edge 13, first endpoint 121, second endpoint 122, connecting portion 5, thinning portion 6, angle α, length H. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figures 1 to 6 The fan blade of the present invention includes a blade 1 and a mounting portion 2. The blades 1 are at least two and are circumferentially distributed outside the mounting portion 2. The blades 1 include a windward side and a leeward side. The blades 1 include a first edge 11, a second edge 12, and a third edge 13. The second edge 12 is provided with a folded edge 3 facing the leeward side. The provision of the folded edge 3 on the second edge 12 of the blade 1, which is away from the mounting portion, can increase the strength of the blade and improve its mechanical properties to a certain extent.

[0026] In one embodiment, the number of blades 1 is set to an odd number, preferably, the number of blades 1 is 7. Setting the number of blades 1 to 7 can make the layout of the blades 1 on the mounting portion 2 more reasonable, improve the air flow efficiency, and thus improve the performance of the humidifier.

[0027] In one embodiment, the connection portion 5 between the blade 1 and the mounting portion 2 is designed as an arc curve, which can further enhance the strength of the blade 1 and make it more stable. Preferably, the arc curve is an S-shaped curve.

[0028] In one embodiment, the blade 1 is provided with a U-shaped protrusion 4 facing the leeward side near the first edge 11, the second edge 12, and the third edge 13. Providing the U-shaped protrusion 4 near the edge of the blade 1 increases the thickness of the blade 1, which can significantly increase the mechanical strength of the blade 1, enabling it to withstand greater wind force, while reducing wind resistance and improving the performance of the humidifier.

[0029] In one embodiment, the ratio of the blade thickness at the U-shaped protrusion 4 on the blade 1 to the thickness at the portion of the blade 1 where the U-shaped protrusion 4 is not provided is 1.25 to 1.45, that is, the thickness of the U-shaped protrusion 4 is 0.25 to 0.45 of the thickness of the blade 1 .

[0030] Preferably, the ratio of the thickness of the blade 1 at the U-shaped protrusion 4 to the thickness of the blade 1 at a location where the U-shaped protrusion 4 is not provided is 1.3333, that is, the thickness of the U-shaped protrusion 4 is one third of the thickness of the blade 1 .

[0031] In one embodiment, the intersection of first edge 11 and second edge 12 on blade 1 is first endpoint 121, and the intersection of second edge 12 and third edge 13 is second endpoint 122. The radial plane of mounting portion 2 is any plane perpendicular to the rotation axis of mounting portion 2. The line connecting first endpoint 121 and second endpoint 122 intersects the radial plane of mounting portion 2 at an angle α, which ranges from 20 to 22 degrees. This angle design can make the blade more stable during operation, while optimizing the air flow path and improving the performance of the humidifier.

[0032] In one embodiment, the length H of the line connecting the first endpoint 121 and the second endpoint 122 in the axial direction of the mounting portion 2, i.e., in the direction of the rotation axis of the mounting portion 2, is 40 to 45 mm. This length design can make the structure of the blade 1 more reasonable, improve the air flow efficiency, and thus improve the performance of the humidifier.

[0033] Reference Figure 7 In one embodiment, the blade 1 includes a first edge 11, a second edge 12, and a third edge 13. The blade 1 is provided with a thinning portion 6 at the first edge 11. When the fan blade rotates, the first edge 11 of the blade 1 serves as a wind-cutting edge. The thinning portion 6 is provided from a position close to the first edge 11 to the first edge 11 of the blade 1. That is, the blade 1 is thinned at the first edge 11 (the wind-cutting edge). This design can reduce wind resistance and improve air flow efficiency.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fan blade for a humidifier, comprising a blade and a mounting portion, characterized in that: The blades are provided in at least two forms, and at least two blades are sequentially provided in the circumferential direction of the outer side of the mounting portion. The blades include a windward surface and a leeward surface, and an edge of the blade away from one end of the mounting portion is provided with a folded edge facing the leeward surface.

2. The fan blade according to claim 1, characterized in that The connection portion between the blade and the mounting portion is designed to be an arc curve.

3. The fan blade according to claim 1, characterized in that A U-shaped protrusion is provided on the leeward side near the edge of the blade.

4. The fan blade according to claim 2 or 3, characterized in that: The number of the blades is 7.

5. The fan blade according to claim 2 or 3, characterized in that: The blade includes a first edge, a second edge and a third edge, the intersection of the first edge and the second edge is the first endpoint, the intersection of the second edge and the third edge is the second endpoint, any plane perpendicular to the rotation axis of the mounting portion is the radial plane of the mounting portion, and the angle between the line connecting the first endpoint and the second endpoint and the radial plane is 20 to 22 degrees.

6. The fan blade according to claim 2 or 3, characterized in that: The blade includes a first edge, a second edge and a third edge, the intersection of the first edge and the second edge is a first endpoint, the intersection of the second edge and the third edge is a second endpoint, and the length of the line connecting the first endpoint and the second endpoint in the direction of the rotation axis of the mounting part is 40 to 45 mm.

7. The fan blade according to claim 3, characterized in that The thickness ratio of the U-shaped protrusion of the blade to the portion of the blade without the U-shaped protrusion is 1.25 to 1.

45.

8. The fan blade according to claim 4, characterized in that: The blade includes a first edge, a second edge and a third edge, the intersection of the first edge and the second edge is the first endpoint, the intersection of the second edge and the third edge is the second endpoint, any plane perpendicular to the rotation axis of the mounting portion is the radial plane of the mounting portion, the angle between the line connecting the first endpoint and the second endpoint and the radial plane is 20 to 22 degrees, the length of the line connecting the first endpoint and the second endpoint in the direction of the rotation axis of the mounting portion is 40 to 45 mm, and the thickness ratio of the U-shaped protrusion of the blade to the part of the blade without the U-shaped protrusion is 1.25 to 1.

45.

9. The fan blade according to claim 2, characterized in that: The arc curve is an S-shaped curve.

10. The fan blade according to claim 2 or 3, characterized in that: The blade includes a first edge, a second edge and a third edge, and the first edge is provided with a thinning portion.

11. A fan blade for a humidifier, comprising a blade and a mounting portion, characterized in that: The blades are provided in at least two forms, and at least two blades are sequentially provided in the circumferential direction of the outer side of the mounting portion. The blades include a windward surface and a leeward surface. The connection portion between the blades and the mounting portion is designed as an arc curve, and a U-shaped protrusion is provided on the leeward surface near the edge of the blade.

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