Fan blade device

Abstract

The utility model provides a fan blade device, which is applied to an industrial fan, and comprises a shell, a carbon fiber layer, a plurality of foamed parts and a free end side cover. The shell is a hollow structure made of metal material, and the shell has an assembly end and a free end. The shell has a plurality of accommodating spaces connected to the assembly end and the free end. Each of the accommodating spaces is independently configured. The carbon fiber layer covers the outer surface of the shell. A plurality of foamed parts are respectively filled in each of the accommodating spaces. The free end side cover is arranged at the assembly end.

Description

Technical Field

[0001] The utility model relates to the technical field of a fan blade, in particular to a fan blade device which has good structural strength and can reduce noise and is applied to industrial fans. Background Art

[0002] Industrial fans are generally installed in storage spaces, factories, workshops, gymnasiums or activity centers to generate forced air flow in the indoor space of the storage spaces, factories, workshops, gymnasiums or activity centers. However, the blades of conventional industrial fans are often noisy and heavy, and there is still room for improvement.

[0003] In summary, the inventor of the present utility model has many years of experience in manufacturing, developing and designing related products, and has designed a fan blade device for the above-mentioned purpose to improve the deficiencies of the prior art and thereby enhance its implementation and utilization in the industry. Utility Model Content

[0004] In view of the above problems in the prior art, the purpose of the present invention is to provide a fan device to solve the above problems to be improved.

[0005] Based on the above purpose, the utility model provides a fan blade device, which is applied to an industrial fan, and includes a shell, a carbon fiber layer, a plurality of foamed parts and a free end side cover. The shell is a hollow structure made of metal material, and the shell has an assembly end and a free end. The shell has a plurality of accommodating spaces connected to the assembly end and the free end. Each of the accommodating spaces is independently configured. The carbon fiber layer covers the outer surface of the shell. A plurality of foamed parts are respectively filled in each of the accommodating spaces. The free end side cover is arranged at the free end.

[0006] Preferably, the carbon fiber layer of the shell in the vicinity of the assembly end is multi-layered.

[0007] Preferably, the multiple accommodating spaces include at least one first accommodating space and at least one second accommodating space, the second accommodating space is provided with a first assembling portion on one side of the assembling end, the fan blade device includes at least one supporting member, the supporting member is arranged in the second accommodating space by the assembling end, and the supporting member has a second assembling portion corresponding to the first assembling portion.

[0008] Preferably, the number of the first accommodating space and the number of the second accommodating space are multiple, and the first accommodating space and the second accommodating space are adjacently arranged, and the number of the supporting members is multiple, and they are respectively arranged in each of the second accommodating spaces.

[0009] Preferably, the first assembling portion and the second assembling portion are in corresponding wave-shaped structures or sawtooth-shaped structures.

[0010] Preferably, a portion of the second assembling portion adjacent to the wave crest is embedded in the first assembling portion, and a remaining portion of the second assembling portion has a gap with the first assembling portion.

[0011] Preferably, the two sides of the shell perpendicular to the assembly end and the free end are respectively the first side and the second side, and the thickness of the second side is greater than the thickness of the first side, the accommodating space closest to the first side is the first accommodating space, and the accommodating space closest to the second side is the second accommodating space.

[0012] Preferably, the shell is provided with at least one assembly through hole adjacent to the assembly end, the assembly through hole is located in the first accommodating space closest to the second side, the assembly through hole is arranged along the blade surface direction of the fan blade device, the fan blade device includes a blade cover plate, and the blade cover plate is fixed to the blade surface of the shell via at least one bolt group and the assembly through hole.

[0013] Preferably, the blade cover plate has a smooth portion and a fin portion on one side relative to the shell, the smooth portion is flush with the assembly end on one side adjacent to the assembly end, and the smooth portion is obliquely arranged on one side adjacent to the free end and on both sides of the fin portion in a direction from the assembly end to the free end.

[0014] Preferably, two of the accommodating spaces closest to the first side and the second side are respectively provided with C-shaped assembly parts, and the free end side cover is fixed to the free end of the housing via a plurality of bolts and the C-shaped assembly parts.

[0015] The technical features of the present invention will be described in detail below with specific embodiments and accompanying drawings so that those skilled in the art can easily understand the purpose, technical features, and advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For technicians in the technical field to which the utility model belongs, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is an exploded schematic diagram of the fan blade device of the utility model.

[0018] Figure 2 It is a schematic diagram of the assembly of the fan blade device of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the assembly end of the fan blade device of the utility model.

[0020] Figure 4 It is a combined schematic diagram of the fan blade device of the utility model from another perspective.

[0021] Figure 5 It is a structural schematic diagram of the free end of the fan blade device of the utility model.

[0022] Explanation of symbols:

[0023] 1: fan blade device; 10: shell; 101: carbon fiber layer; 111: assembly end; 112: free end; 113: first side; 114: second side; 121: first accommodating space; 122: second accommodating space; 123: first assembly part; 13: assembly through hole; 14: C-shaped assembly part; 20: foam part; 30: free end side cover; 40: support part; 41: second assembly part; 50: blade cover plate; 51: smooth part; 52: fin part; 91: bolt group; and 92: bolt. DETAILED DESCRIPTION

[0024] The advantages, features and technical methods achieved by the present invention will be described in more detail with reference to the exemplary embodiments and the accompanying drawings so as to be easier to understand, and the present invention can be implemented in different forms, so it should not be understood as being limited to the embodiments described herein. On the contrary, for those skilled in the art, the provided embodiments will make the present invention more thorough and comprehensive and completely convey the scope of the present invention, and the present invention will only be defined by the attached claims.

[0025] It should be understood that, although the terms "first", "second", etc. may be used in the present invention to describe various elements, components, regions, sections, layers and / or parts, these elements, components, regions, sections, layers and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, section, layer and / or part from another element, component, region, section, layer and / or part.

[0026] Unless otherwise defined, all terms (including technical and scientific terms) used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having definitions consistent with their meanings in the context of the relevant technology and the present invention, and will not be interpreted as idealized or overly formal meanings unless explicitly defined in this article.

[0027] Please also read Figures 1 to 5 , which is a relevant schematic diagram of the fan blade device of the utility model.

[0028] As shown in the figure, the fan blade device 1 of the utility model is applied to an industrial fan, wherein the fan blade device 1 mainly comprises a housing 10 , a carbon fiber layer 101 , a plurality of foamed parts 20 and a free end side cover 30 , and further comprises a support member 40 and a blade cover plate 50 .

[0029] The shell 10 is a hollow structure made of metal material. Preferably, the metal material can be aluminum or aluminum alloy and is made by extrusion molding. The hollow structure made of aluminum or aluminum alloy can have the advantages of structural strength and light weight. The shell 10 has a free end 111 and an assembly end 112. The shell 10 has a plurality of accommodating spaces between the free end 111 and the assembly end 112, which are connected to the free end 111 and the assembly end 112. Each of the accommodating spaces is independently configured, that is, each accommodating space is separated from each other by a wall formed by aluminum or aluminum alloy, thereby further having good structural strength.

[0030] Incidentally, the two sides of the housing 10 perpendicular to the free end 111 and the assembly end 112 are respectively a first side 113 and a second side 114, and the thickness of the second side 114 is greater than the thickness of the first side 113. In other words, when the housing 10 is viewed from the free end 111 or the assembly end 112, it is generally in the shape of a water drop. The structural strength is increased by the arc part, and the stability is improved and the noise is reduced by the change of thickness.

[0031] The carbon fiber layer 101 covers the outer surface of the shell 10. By configuring the carbon fiber layer 101, the thickness of the shell 10 can be further reduced while maintaining or increasing the structural strength. For example, the overall thickness of the shell 10 provided with the carbon fiber layer 101 can be half or less of the overall thickness of the shell 10 not provided with the carbon fiber layer 101. It is worth mentioning that the carbon fiber layer 101 of the shell 10 in the vicinity of the assembly end 112 is multi-layered. For example, in the area of ​​one-third or one-quarter of the overall length from the assembly end 112 to the middle section, the carbon fiber layer 101 can be arranged as two, three or more layers. The size or length of the area and the number of layers of the carbon fiber layer 101 can be configured according to the actual application; thereby, the structural strength of the assembly end 112 and its vicinity is increased.

[0032] Among them, a plurality of foaming parts 20 are respectively filled in each of the accommodating spaces 12. The foaming parts 20 can be, for example, PU (Polyurethane) foaming materials or foaming agents, which are elements or means well known or commonly used by technicians in the relevant technical field. The utility model fills the hollow shell 10 with foaming parts 20. This configuration can improve the stability of the overall structure and also help reduce noise, so as to achieve the goals of technicians in the relevant technical field of improving performance, reducing weight, reducing costs, avoiding the speaker effect and reducing noise.

[0033] The free end side cover 30 may be made of carbon fiber, plastic, or aluminum alloy, or may be made of aluminum alloy with the outer surface covered with carbon fiber, and is disposed at the free end 111 to close the accommodation space of the free end 111 so as to fill the foaming member 20. Further, a corresponding C-shaped assembly portion 14 may be disposed in the accommodation space 12, so that the free end side cover 30 is fixed to the C-shaped assembly portion 14 by passing through the through holes of the free end side cover 30 with a plurality of bolts 92, thereby fixing the free end side cover 30 to the free end 111. Preferably, the two accommodation spaces closest to the first side 113 and the second side 114 may be provided with a C-shaped assembly portion 14.

[0034] As for the accommodation space, the plurality of accommodation spaces include at least one first accommodation space 121 and at least one second accommodation space 122; preferably, the number of the first accommodation space 121 and the number of the second accommodation space 122 are multiple. In the embodiment, the number of the first accommodation space 121 and the number of the second accommodation space 122 are two respectively. In different embodiments, the number of the first accommodation space 121 can be three, and the number of the second accommodation space 122 can be one (or vice versa), or the number of the first accommodation space 121 can be three, and the number of the second accommodation space 122 can be two (or vice versa). Therefore, the exemplary aspects in the embodiment should not be used as a limitation.

[0035] The second accommodating space 122 is provided with a first assembling portion 123 on one side of the assembling end 112. Specifically, the first assembling portion 123 may be a wavy structure or a sawtooth structure disposed only on the upper side or the lower side of the second accommodating space 122, or a wavy structure or a sawtooth structure disposed on the upper side and the lower side of the second accommodating space 122. In the embodiment, the wavy structure or the sawtooth structure disposed on the upper side and the lower side of the second accommodating space 122 is used as a demonstration, but the exemplary state in the embodiment should not be used as a limitation. The fan device 1 includes at least one support member 40. The support member 40 may be made of carbon fiber material, plastic material, aluminum alloy or other materials, or may be made of aluminum alloy material, and the outer surface is covered with carbon fiber, preferably made of aluminum alloy material. The support member 40 is disposed in the second accommodating space 122 by the assembly end 112, and the support member 40 has a second assembly portion 41 corresponding to the first assembly portion 123; that is, the two opposite surfaces of the support member 40 have the second assembly portions 41 with a wavy structure or a serrated structure corresponding to the first assembly portion 123. By the way, preferably, the first assembly portion 123 and the second assembly portion 41 can be corresponding wavy structures.

[0036] It is worth mentioning that the portion of the second assembly part 41 adjacent to the wave crest is embedded in the first assembly part 123, and the rest of the second assembly part 41 has a gap with the first assembly part 123. That is to say, in actual use, the support member 40 can be first arranged in the second accommodation space 122, and then the foaming agent and the like are filled into the first accommodation space 121 and the second accommodation space 122 to form the foaming member 20, so that the foaming member 20 will fill the gap between the support member 40 and the second accommodation space 122. In this way, the effect of stably setting the support member 40 can be achieved. By the way, the support member 40 does not have a side surface of the second assembly part 41, and there may also be a gap between it and the second accommodation space 122. In addition, the length of the support member 40 is configured according to the actual use, and when the number of the support members 40 is multiple, the lengths of the support members 40 can be different lengths or the same length.

[0037] The fan device 1 of the utility model is provided with a support member 40 in the accommodating space, and the support member 40 can increase the rigidity of the fan device 1 and disperse the stress, which helps to reduce the vibration of the fan device 1 and further reduce the noise that may be generated when the fan device 1 is in operation.

[0038] On the other hand, in the embodiment, the accommodation space closest to the first side 113 is the first accommodation space 121, and the accommodation space closest to the second side 114 is the second accommodation space 122. That is, from the first side 113 to the second side 114, the accommodation spaces are arranged in the order of the first accommodation space 121, the second accommodation space 122, the first accommodation space 121, and the second accommodation space 122.

[0039] The housing 10 is provided with at least one assembly through hole 13, and the assembly through hole 13 is located in the first accommodating space 121 closest to the second side 114, and the assembly through hole 13 is arranged along the blade surface direction of the fan device 1. The fan device 1 includes a blade cover plate 50. The blade cover plate 50 can be made of carbon fiber material, plastic material or aluminum alloy. The blade cover plate 50 is fixed to the blade surface of the housing 10 via at least one bolt group 91 and the assembly through hole 13. The bolt group 91, for example, includes bolts and multiple gaskets or anti-fall (anti-loosening) gaskets.

[0040] like Figure 4 As shown (for convenience, Figure 4 The carbon fiber layer 101 is omitted), and further, the blade cover plate 50 has a smooth portion 51 and a fin portion 52 on one side relative to the shell 10. The side of the smooth portion 51 adjacent to the assembly end 112 is flush with the assembly end 112. The side of the smooth portion 51 adjacent to the free end 111 and the two sides of the fin portion 52 are arranged obliquely from the assembly end 112 to the free end 111. In other words, the other side of the smooth portion 51 relative to the free end is adjacent to the side corresponding to the fin portion 52, and the smooth portion 51 and one side of the fin portion 52 are parallel to the other side of the fin portion 52. The fan blade device 1 of the utility model, by virtue of this configuration, helps to reduce the vibration of the fan blade device 1, and thereby reduce the noise that may be generated when the fan blade device 1 is operated.

[0041] In summary, the fan blade device of the present invention, through the above-mentioned structural configuration, can effectively achieve the effects of lightweight fan blades, increased structural strength, reduced manufacturing costs and reduced noise, so as to be easy to apply to various scenarios.

[0042] The above description is for illustrative purposes only and is not intended to be limiting. Any equivalent modifications or changes made to the present invention without departing from the spirit and scope of the present invention shall be included in the appended claims.

Claims

1. A fan blade device, which is applied to an industrial fan, characterized in that: It contains: A shell, the shell being a hollow structure made of metal material, having an assembly end and a free end, the shell having a plurality of accommodating spaces communicating with the assembly end and the free end, and each of the accommodating spaces being independently configured; A carbon fiber layer, the carbon fiber layer covering the outer surface of the shell; a plurality of foam pieces, each of the accommodating spaces being filled with the foam pieces respectively; and A free end side cover is arranged at the free end.

2. The fan blade device according to claim 1, characterized in that: The carbon fiber layers in the vicinity of the assembly end of the shell are multiple layers.

3. The fan blade device according to claim 2, characterized in that: The multiple accommodating spaces include at least one first accommodating space and at least one second accommodating space, the second accommodating space is provided with a first assembling portion on one side of the assembling end, the fan blade device includes at least one supporting member, the supporting member is arranged in the second accommodating space by the assembling end, and the supporting member has a second assembling portion corresponding to the first assembling portion.

4. The fan blade device according to claim 3, characterized in that: There are a plurality of the first accommodating spaces and a plurality of the second accommodating spaces, and the first accommodating spaces are adjacent to the second accommodating spaces. There are a plurality of the supporting members, and the supporting members are respectively arranged in each of the second accommodating spaces.

5. The fan blade device according to claim 3 or 4, characterized in that: The first assembling portion and the second assembling portion are in corresponding wave-shaped structures or sawtooth-shaped structures.

6. The fan blade device according to claim 5, characterized in that: A portion of the second assembling portion adjacent to the wave crest is embedded in the first assembling portion, and a gap is formed between the remaining portion of the second assembling portion and the first assembling portion.

7. The fan blade device according to claim 5, characterized in that: The two sides of the shell perpendicular to the assembly end and the free end are respectively the first side and the second side, and the thickness of the second side is greater than the thickness of the first side, the accommodating space closest to the first side is the first accommodating space, and the accommodating space closest to the second side is the second accommodating space.

8. The fan blade device according to claim 7, characterized in that: The shell is provided with at least one assembly through hole adjacent to the assembly end, the assembly through hole is located in the first accommodating space closest to the second side, the assembly through hole is arranged along the blade surface direction of the fan blade device, the fan blade device includes a blade cover plate, and the blade cover plate is fixed to the blade surface of the shell via at least one bolt group and the assembly through hole.

9. The fan blade device according to claim 8, characterized in that: The blade cover plate has a smooth portion and a fin portion on one side relative to the shell, wherein the smooth portion is flush with the assembly end on one side adjacent to the assembly end, and the smooth portion is obliquely arranged on one side adjacent to the free end and on both sides of the fin portion in a direction from the assembly end to the free end.

10. The fan blade device according to claim 7, characterized in that: The two accommodating spaces closest to the first side and the second side are respectively provided with C-shaped assembly parts, and the free end side cover is fixed to the free end of the shell via a plurality of bolts and the C-shaped assembly parts.

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