Lightweight industrial ceiling fan

Abstract

The utility model provides a kind of lightweight industrial ceiling fan, it includes main body, multiple fan leaves, multiple fan leaves locking piece and main body locking piece, multiple fan leaves are fixed on main body by multiple fan leaves locking piece respectively, and main body locking piece is arranged at the central place above main body, to fix main body on ceiling;In addition, main body is composed of nylon and glass fiber, and multiple fan leaves are composed of degradable epoxy resin and glass fiber, so that the industrial ceiling fan is lightweight, and the overall structural strength can be improved.

Description

Technical Field

[0001] This utility model relates to a lightweight industrial ceiling fan, and more particularly to a lightweight industrial ceiling fan with a blade length of at least two meters. Background Technology

[0002] Industrial giant fans are ventilation and cooling devices designed specifically for large spaces. They are mainly used in high-ceilinged spaces such as factories, warehouses, stadiums, and logistics centers. Their diameter is usually between 2 and 7 meters. They drive a large amount of airflow by rotating at a low speed (e.g., 20 to 150 revolutions per minute) to form a three-dimensional circulating wind, achieving uniform ventilation, reducing stuffiness, and saving energy.

[0003] Compared to traditional fans, industrial ceiling fans offer a wider coverage area, lower energy consumption, and reduced moisture and dust accumulation. However, existing industrial ceiling fans, with their motors, blades, and supports made of iron and / or aluminum, can weigh tens or even hundreds of kilograms. This necessitates an assessment of the building's structural strength during installation, especially in older factories where additional reinforcement may be required.

[0004] In addition, when the blades of industrial ceiling fans exceed 1 meter in length, centrifugal force and self-weight can easily lead to stress concentration (especially at the root of the blades, i.e., the connection point with the central motor of the ceiling fan). Long-term operation may cause deformation or breakage, posing a hazard to personnel in the workplace.

[0005] Therefore, it is necessary to develop an industrial ceiling fan that can improve upon the above-mentioned defects, giving it advantages such as lightweight and high structural strength. Utility Model Content

[0006] In view of the problems of the prior art, the purpose of this utility model is to provide a lightweight industrial ceiling fan, thereby improving the defects of existing industrial ceiling fans by improving the materials and structure of the overall components.

[0007] To achieve the above objectives, this utility model provides a lightweight industrial ceiling fan, which includes a main body, multiple fan blades, multiple fan blade locking fasteners, and a main body locking fastener.

[0008] The plurality of fan blades are respectively fixed to the main body by the plurality of fan blade fasteners with the plurality of screws, and the main body fastener is located at the center of the upper part of the main body to fix the main body to the ceiling.

[0009] Each of the plurality of fan blades is hollow inside, and multiple reinforcing ribs are provided inside the hollow part along the direction from the end of the fan blade (away from the main body end) to the root (close to the main body end) to support and strengthen the overall structural strength of the fan blade. Multiple hollow parts are formed between the multiple reinforcing ribs. Each of the multiple hollow parts is used to pass through the multiple screws. The hollow parts on both sides of the hollow part through which the multiple screws pass are respectively provided with a first reinforcing rod and a second reinforcing rod, and the second reinforcing rod is longer than the first reinforcing rod.

[0010] Each of the plurality of fan blades is made of a mixture of biodegradable epoxy resin and glass fiber, which is then extruded and molded (also known as pultrusion molding); each of the plurality of reinforcing ribs is made of carbon fiber; and the first reinforcing rod and the second reinforcing rod are both made of glass fiber.

[0011] The upper surface of the main body has multiple inclined surfaces corresponding to the number of fan blades to accommodate the multiple fan blades, and each of the multiple inclined surfaces is provided with multiple screw holes so that multiple screws can be inserted therein to fix the fan blades between the fan blade locking fastener and the main body; a through hole is provided in the center of the upper surface of the main body, and a bearing is provided in the through hole for the motor shaft to pass through; the interior of the main body has an accommodating space for accommodating the motor.

[0012] The main body is made of a mixture of nylon and glass fiber by injection molding. The nylon may be nylon 66 (Polyamide 66, PA66), but is not limited to this.

[0013] The plurality of fan blade locking fasteners, as well as the main body locking fastener, are all made of lightweight materials.

[0014] On the other hand, in order to reduce the use of unnecessary fasteners to fix the motor and the bearing to the accommodating space and the through hole of the main body, the motor coil, magnet and the bearing can be integrally molded with the constituent materials of the main body, thereby further reducing the overall weight of the lightweight industrial ceiling fan.

[0015] The technical features of this utility model will be described in detail below with reference to specific embodiments and the accompanying drawings, so that those skilled in the art can easily understand the purpose, technical features and advantages of this utility model. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall design of the lightweight industrial ceiling fan of this utility model;

[0017] Figure 2 This is a partial perspective view of the fan blades in the lightweight industrial ceiling fan of this utility model.

[0018] Figure 3 This is a cross-sectional view of the fan blades in the lightweight industrial ceiling fan of this utility model.

[0019] Figure 4 This is a schematic diagram of the main body of the lightweight industrial ceiling fan of this utility model;

[0020] Figure 5 This is a schematic diagram of the interior of the lightweight industrial ceiling fan of this utility model after it has been inverted.

[0021] Explanation of reference numerals in the attached figures

[0022] 1: Lightweight industrial ceiling fan

[0023] 2: Main body

[0024] 3: Fan blades

[0025] 4: Fan blade locking fastener

[0026] 5: Main locking components

[0027] 6: First reinforcing bar

[0028] 7: Second reinforcing bar

[0029] 8: Screws

[0030] 9: Reinforced ribs

[0031] 10: Hollow section

[0032] 11: Bevel

[0033] 12: Screw hole

[0034] 13: Through hole

[0035] 14: Bearings

[0036] 15: Storage space Detailed Implementation

[0037] The advantages, features, and technical methods of this utility model will be more readily understood by referring to the exemplary embodiments and the accompanying drawings. This utility model can be implemented in different forms and should not be construed as limited to the embodiments set forth herein. Rather, the embodiments provided will enable those skilled in the art to more thoroughly and completely convey the scope of this utility model, which will be defined only by the appended claims.

[0038] Unless otherwise defined, all terms used in this invention (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this invention, and will not be interpreted as having an idealized or overly formal meaning unless expressly defined herein.

[0039] To provide a more complete and clear disclosure of the technical content, purpose, and technical effects achieved by this utility model, a detailed description will be provided below, and please refer to the accompanying drawings.

[0040] Please see Figure 1 This is an overall schematic diagram of the lightweight industrial ceiling fan of this utility model. The lightweight industrial ceiling fan 1 includes a main body 2, multiple fan blades 3, multiple fan blade locking fasteners 4, and a main body locking fastener 5. The multiple fan blades 3 are respectively fixed to the main body 2 by the multiple fan blade locking fasteners 4 with multiple screws 8, and the main body locking fastener 5 is located at the center of the upper part of the main body 2 to fix the main body 2 to the ceiling.

[0041] Please see Figure 2 and Figure 3 The following are, in order, a partial perspective view and a cross-sectional view of the fan blades in the lightweight industrial ceiling fan of this utility model.

[0042] Each of the plurality of fan blades 3 is hollow inside, and a plurality of reinforcing ribs 9 are provided inside the hollow part along the direction from the end of the fan blade 3 (away from the end of the main body 2) to the root (closer to the end of the main body 2) to support and strengthen the overall strength of the fan blade 3. A plurality of hollow portions 10 are formed between the plurality of reinforcing ribs 9. Each of the plurality of hollow portions 10 is used to pass through a plurality of screws 8. A first reinforcing rod 6 and a second reinforcing rod 7 are respectively provided on both sides of the hollow portion 10 through which the screws 8 pass, and the second reinforcing rod 7 is longer than the first reinforcing rod 6. Preferably, the length of the plurality of fan blades 3 is at least 1 meter.

[0043] Each of the plurality of fan blades 3 is made of a mixture of biodegradable epoxy resin and glass fiber, which is then extruded and molded (also known as vacuum extrusion molding). Preferably, the glass fiber content is at least 80 wt% based on the total weight of the fan blade 3. When the glass fiber content is less than 80 wt%, the overall strength of the fan blade 3 is insufficient.

[0044] Each of the plurality of reinforcing ribs 9 is made of carbon fiber, while the first reinforcing rod 6 and the second reinforcing rod 7 are both made of glass fiber. The plurality of reinforcing ribs 9 made of carbon fiber can further reduce the weight of the fan blade 3, while the first reinforcing rod 6 and the second reinforcing rod 7 made of glass fiber can not only further reduce the weight of the fan blade 3, but also strengthen the strength of the root of the fan blade 3, so as to avoid the deformation or breakage of the fan blade 3 due to stress concentration during long-term operation.

[0045] Please refer to this again. Figure 4 and Figure 5 The figures shown are, in order, a schematic diagram of the main body of the lightweight industrial ceiling fan of this utility model and an internal schematic diagram of the main body after it is inverted.

[0046] The upper surface of the main body 2 has multiple inclined surfaces 11 corresponding to the number of fan blades 3 to accommodate the fan blades 3. Each of the multiple inclined surfaces 11 is provided with multiple screw holes 12 so that multiple screws 8 can be inserted therein to fix the fan blades 3 between the fan blade locking fastener 4 and the main body 2. A through hole 13 is provided in the center of the upper surface of the main body 2, and a bearing 14 is provided in the through hole 13 for the motor shaft to pass through. The interior of the main body 2 has an accommodating space 15 for accommodating the motor.

[0047] See again Figures 1 to 3 It can be seen that the multiple fan blades 3 are all inclined at an angle and are set on the multiple inclined surfaces 11 on the upper surface of the main body 2. The second reinforcing rod 7 is located at a higher position on the inclined surface 11. When it is running, it is the air impact surface. Compared with the first reinforcing rod 6 located at a lower position on the inclined surface 11, it needs to withstand greater air resistance and stress. Therefore, its length must be longer than that of the first reinforcing rod 6 to ensure that the structural strength of the fan blades 3 is sufficient.

[0048] The main body 2 is made of a mixture of nylon and glass fiber by injection molding. The nylon can be nylon 66 (Polyamide 66, PA66), but is not limited to this. Preferably, based on the total weight of the main body 2, the nylon content is 50-80 wt%, and the glass fiber content is 20-50 wt%. When the glass fiber content is less than 20 wt%, the main body 2 will lack sufficient hardness to withstand the stress generated by the fan blade 3 during operation. When the glass fiber content is greater than 50 wt%, the main body 2 will be too hard and lose its toughness, making it prone to resonance and abnormal noise due to vibration from the motor rotation during operation. Preferably, the nylon content is 55 wt%, and the glass fiber content is 45 wt%.

[0049] The plurality of fan blade locking fasteners 4 and the main body locking fastener 5 are all made of lightweight materials; preferably, the plurality of fan blade locking fasteners 4 and the main body locking fastener 5 can be made of aluminum metal.

[0050] On the other hand, in order to reduce the use of unnecessary fasteners to fix the motor and the bearing 14 to the accommodating space 15 and the through hole 13 of the main body 2, the motor coil, magnet and the bearing 14 can be integrally molded with the constituent materials of the main body 2, thereby further reducing the overall weight of the lightweight industrial ceiling fan 1.

[0051] In summary, the lightweight industrial ceiling fan provided by this utility model, through improvements in the material and structure of its main body and fan blades, can significantly reduce its weight compared to existing industrial ceiling fans, by at least 50%. This not only simplifies installation and maintenance but also further enhances the durability of the lightweight industrial ceiling fan, significantly reducing operating costs. Furthermore, the main body of the lightweight industrial ceiling fan can be integrally molded with the motor coil, magnet, bearings, and other constituent materials, reducing both overall weight and production costs.

[0052] Through the above description of the embodiments, it should be fully understood that the content, use and technical effects of this utility model are as follows. The above-described embodiments are only preferred embodiments of this utility model and should not be used to limit the scope of implementation of this utility model. That is, simple equivalent changes and modifications made according to the claims and description of this utility model are all within the scope of this utility model.

Claims

1. A lightweight industrial ceiling fan, characterized in that, Include: main body; Multiple fan blades; Multiple fan blade locking fasteners; and Main locking components, among which The plurality of fan blades are respectively fixed to the main body by the plurality of fan blade locking fasteners with a plurality of screws; as well as The main locking fastener is located at the center of the upper part of the main body to fix the main body to the ceiling.

2. The lightweight industrial ceiling fan according to claim 1, wherein, Each of the plurality of fan blades is hollow inside, and the hollow interior contains: Multiple reinforcing ribs are respectively arranged along the direction from the end of the fan blade to the root; Multiple hollow sections are formed by the multiple reinforcing ribs separating the hollow interior; First reinforcing bar; as well as The second reinforcing rod, among which Any one of the plurality of hollow portions is used to pass through the plurality of screws, and the hollow portions on both sides of the hollow portion through which the plurality of screws are passed are respectively provided with the first reinforcing rod and the second reinforcing rod.

3. The lightweight industrial ceiling fan according to claim 1 or claim 2, wherein, The upper surface of the main body has multiple bevels corresponding to the number of fan blades to accommodate them, and each of the multiple bevels is provided with multiple screw holes to allow multiple screws to pass through them. The fan blades are fixed between the fan blade locking fastener and the main body; A through hole is provided at the center of the upper surface of the main body, and a bearing is provided in the through hole for the motor shaft to pass through; and The main body has an internal accommodating space for accommodating the motor.

4. The lightweight industrial ceiling fan according to claim 1, wherein, The material of any one of the plurality of fan blades is a mixture of biodegradable epoxy resin and glass fiber, and the glass fiber content is at least 80 wt% based on the total weight of the fan blade.

5. The lightweight industrial ceiling fan according to claim 1, wherein, The main body is made of a mixture of nylon and glass fiber, and the nylon content is 50-80 wt% and the glass fiber content is 20-50 wt% based on the total weight of the main body.

6. The lightweight industrial ceiling fan according to claim 2, wherein, The multiple reinforcing ribs are made of carbon fiber.

7. The lightweight industrial ceiling fan according to claim 2, wherein, The first reinforcing rod and the second reinforcing rod are made of glass fiber.

8. The lightweight industrial ceiling fan according to claim 2, wherein, The second reinforcing rod is longer than the first reinforcing rod.

9. The lightweight industrial ceiling fan according to claim 1, wherein, The length of the plurality of fan blades is at least 1 meter.

10. The lightweight industrial ceiling fan according to claim 3, wherein, The main body is formed by injection molding of the motor coil, magnet, and bearing together with the constituent materials of the main body.

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