Fan blade and air conditioner

Abstract

The utility model discloses a kind of fan blade and air conditioner, the fan blade includes: center hub and the multiple blades of being set on the center hub, the multiple blades are evenly arranged around the center hub;The blade has the first end close to the center hub and the second end away from the center hub, the width of the first end is less than the width of the second end;The blade includes body and the anticorrosive protective layer of being set on the body surface;The anticorrosive protective layer includes at least one of macromolecular anticorrosive layer and metal oxide anticorrosive layer.The fan blade of the utility model embodiment has good anticorrosive performance, and service life is long.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, and more specifically, to a fan blade and an air conditioner. Background Technology

[0002] Aluminum heat exchangers are widely used in outdoor unit equipment due to their advantages of high heat exchange efficiency, light weight, and low cost. However, during the operation of the outdoor unit, the high-speed rotation of the fan blades can bring iron-containing particles or other corrosive particles from the air or the fan itself to the surface of the aluminum components of the aluminum heat exchanger, causing corrosion of the aluminum components and affecting the service life of the heat exchanger. Utility Model Content

[0003] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of protection of this utility model.

[0004] This utility model embodiment provides a fan blade and an air conditioner including the fan blade, which has good corrosion resistance and a long service life.

[0005] This utility model embodiment provides a fan blade, the fan blade comprising: a central hub and a plurality of blades disposed on the central hub, the plurality of blades being evenly disposed around the central hub; each blade having a first end close to the central hub and a second end away from the central hub, the width of the first end being smaller than the width of the second end; each blade comprising a body and an anti-corrosion protective layer disposed on the surface of the body; the anti-corrosion protective layer comprising at least one of a polymer anti-corrosion layer and a metal oxide anti-corrosion layer.

[0006] In some embodiments of this utility model, the thickness of the anti-corrosion protective layer is not less than 50 μm.

[0007] In some embodiments of this utility model, the thickness of the polymer anti-corrosion layer is 50 μm to 150 μm.

[0008] In some embodiments of this utility model, the thickness of the metal oxide anti-corrosion layer is not less than 150 μm.

[0009] In some embodiments of this utility model, the thickness of the metal oxide anti-corrosion layer is 150 μm to 1 mm.

[0010] In some embodiments of this utility model, the anti-corrosion protective layer includes a polymer anti-corrosion layer and a metal oxide anti-corrosion layer, and the metal oxide anti-corrosion layer is located between the polymer anti-corrosion layer and the body.

[0011] In some embodiments of this invention, the body is formed from polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer, or polyetheretherketone.

[0012] In some embodiments of this invention, the central hub is formed of polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer, or polyetheretherketone. In some embodiments of this invention, the polymeric anti-corrosion layer includes any one or more layers selected from the following: a polytetrafluoroethylene layer, a polyamide layer, polyvinyl chloride, polyaniline, epoxy resin layer, acrylonitrile-butadiene-styrene copolymer layer, and polyetheretherketone layer.

[0013] In some embodiments of this utility model, the metal oxide anti-corrosion layer includes any one or more layers selected from Al2O3, Cr2O3, NiO, Fe2O3, TiO2, NiO, ZnO, CeO2, and ZrO2.

[0014] In some embodiments of this invention, the fan blade includes at least three blades; the width of the blades gradually increases along the direction away from the central hub.

[0015] This utility model embodiment also provides an air conditioner, which includes the fan blades described above.

[0016] The fan blades of this embodiment, by having an anti-corrosion protective layer on their surface, can effectively reduce the impact of iron plasma or other corrosive particles from fan operation on the heat exchanger, thus extending the service life of the heat exchanger. Furthermore, it helps improve the operational stability of the heat exchanger in the outdoor unit of the air conditioner, reduces maintenance costs, and optimizes the overall performance of the outdoor unit.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0019] Figure 1 A cross-sectional structural diagram of a wind turbine blade, which is an exemplary embodiment of the present invention;

[0020] Figure 2This is a cross-sectional structural diagram of another fan blade according to an exemplary embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional structural schematic diagram of another wind blade according to an exemplary embodiment of the present invention;

[0022] Figure 4 This is a cross-sectional structural diagram of another wind turbine blade according to an exemplary embodiment of the present invention.

[0023] Figure 5 A schematic diagram of the anti-corrosion process of a wind turbine blade, which is an exemplary embodiment of this utility model;

[0024] Figure 6 A three-dimensional structural diagram of an outdoor unit of an air conditioner, which is an exemplary embodiment of the present utility model;

[0025] Figure 7 for Figure 6 The image shows a top view of the outdoor unit of the air conditioner.

[0026] Figure 8 for Figure 6 The image shows a side view of the outdoor unit of the air conditioner.

[0027] The meanings of the symbols in the attached diagram are as follows:

[0028] 1-Corrosive medium; 2-Corrosion inlet; 10-Body; 20-Anti-corrosion protective layer; 21-Polymer anti-corrosion layer; 22-Metal oxide anti-corrosion layer; 100-Blade; 200-Central hub; 221-First metal oxide anti-corrosion layer; 222-Second metal oxide anti-corrosion layer; 1000-Fan blade; 2000-Heat exchanger. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0030] This utility model embodiment provides a fan blade, the fan blade comprising: a central hub and a plurality of blades disposed on the central hub, the plurality of blades being evenly disposed around the central hub; each blade having a first end close to the central hub and a second end away from the central hub, the width of the first end being smaller than the width of the second end; each blade comprising a body and an anti-corrosion protective layer disposed on the surface of the body; the anti-corrosion protective layer comprising at least one of a polymer anti-corrosion layer and a metal oxide anti-corrosion layer.

[0031] The fan blades of this embodiment, by having an anti-corrosion protective layer on their surface, can effectively reduce the impact of iron plasma or other corrosive particles from fan operation on the heat exchanger, thus extending the service life of the heat exchanger. Furthermore, it helps improve the operational stability of the heat exchanger in the outdoor unit of the air conditioner, reduces maintenance costs, and optimizes the overall performance of the outdoor unit.

[0032] In some embodiments of this utility model, the thickness of the anti-corrosion protective layer can be in the range of not less than 50 μm. For example, the thickness of the anti-corrosion protective layer can be in the range of 50 μm to 3 mm; or, for example, the thickness of the anti-corrosion protective layer can be 50 μm, 100 μm, 150 μm, 200 μm, 300 μm, 400 μm, 500 μm, 600 μm, 700 μm, 800 μm, 900 μm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm.

[0033] In some embodiments of this invention, the thickness of the polymer anti-corrosion layer can be in the range of 50 μm to 150 μm. For example, the thickness of the polymer anti-corrosion layer can be 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, or 150 μm.

[0034] When the thickness of the polymer anti-corrosion layer is in the range of 50μm to 150μm, not only can the wind blades that only use the polymer anti-corrosion layer as an anti-corrosion protection layer have a better anti-corrosion effect, but the polymer anti-corrosion layer in this thickness range is also easier to form.

[0035] In some embodiments of this invention, the thickness of the metal oxide anti-corrosion layer can be in the range of not less than 150 μm. For example, the thickness of the metal oxide anti-corrosion layer can be in the range of 150 μm to 1 mm; or, for example, the thickness of the metal oxide anti-corrosion layer can be 150 μm, 200 μm, 300 μm, 400 μm, 500 μm, 600 μm, 700 μm, 800 μm, 900 μm or 1 mm.

[0036] When the thickness of the metal oxide anti-corrosion layer is in the range of 50μm to 150μm, not only can the wind blades that only use the metal oxide anti-corrosion layer as an anti-corrosion protection layer have a better anti-corrosion effect, but the metal oxide anti-corrosion layer in this thickness range is also easier to form.

[0037] In some embodiments of this utility model, the anti-corrosion protective layer includes a polymer anti-corrosion layer and a metal oxide anti-corrosion layer, and the metal oxide anti-corrosion layer is located between the polymer anti-corrosion layer and the body.

[0038] In some embodiments of this utility model, the polymer anti-corrosion layer includes any one or more layers selected from polytetrafluoroethylene (PTFE) layer, polyamide (PA) layer, polyvinyl chloride (PVA) layer, polyaniline layer, epoxy resin layer, acrylonitrile-butadiene-styrene copolymer (ABS) layer, and polyether ether ketone (PEEK) layer.

[0039] In some embodiments of this utility model, the metal oxide anti-corrosion layer includes any one or more layers selected from Al2O3, Cr2O3, NiO, Fe2O3, TiO2, NiO, ZnO, CeO2, and ZrO2.

[0040] In some embodiments of this invention, the body is formed from polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer, or polyetheretherketone.

[0041] In some embodiments of this utility model, the central hub is formed of polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer or polyetheretherketone.

[0042] In some embodiments of this invention, the center hub and the body may be made of the same or different materials. The center hub and the body may be formed from the same material using an integral molding process.

[0043] Polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, ABS plastic and PEEK have excellent corrosion resistance. Using these materials to replace traditional metal or ordinary plastic materials to manufacture fan blades can further optimize the overall performance of air conditioner outdoor units.

[0044] In some embodiments of this utility model, the blade body can be formed first, and then a polymer anti-corrosion coating or a metal oxide coating can be applied to the surface of the body by means of coating (e.g., spraying, scraping, rolling, etc.) or deposition, thereby forming the polymer anti-corrosion layer and the metal oxide anti-corrosion layer.

[0045] In some embodiments of this invention, the fan blade includes at least three blades; the width of the blades gradually increases along the direction away from the central hub.

[0046] Figure 1 A cross-sectional structural diagram of a wind turbine blade, which is an exemplary embodiment of the present invention; Figure 2 This is a cross-sectional structural diagram of another fan blade according to an exemplary embodiment of the present invention; Figure 3 This is a cross-sectional structural schematic diagram of another wind blade according to an exemplary embodiment of the present invention; Figure 4This is a cross-sectional structural diagram of another wind turbine blade, which is an exemplary embodiment of the present invention.

[0047] like Figures 1 to 4 As shown, the wind turbine blade 1000 includes multiple blades 100 and a central hub 200; the multiple blades 100 are evenly arranged around the central hub 200; each blade 100 has a first end close to the central hub 200 and a second end away from the central hub 200, the width of the first end is smaller than the width of the second end, for example, the width of each blade 100 can gradually increase along the direction away from the central hub 200.

[0048] exist Figures 1 to 4 The wind turbine blade 1000 shown includes three blades 100; in other embodiments, the number of blades 100 may be two, four or more.

[0049] Each blade 100 includes a body 10 and a corrosion protection layer 20; the corrosion protection layer 20 is disposed on the surface of the body 10.

[0050] The anti-corrosion protective layer 20 includes at least one of a polymer anti-corrosion layer 21 and a metal oxide anti-corrosion layer 22; the polymer anti-corrosion layer 21 includes any one or more layers of polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer, and polyetheretherketone, and the polymer anti-corrosion layer 21 can be a single layer or a multilayer structure; the metal oxide anti-corrosion layer 22 includes any one or more layers of Al2O3, Cr2O3, NiO, Fe2O3, TiO2, NiO, ZnO, CeO2, and ZrO2, and the metal oxide anti-corrosion layer 22 can be a single layer or a multilayer structure.

[0051] The body 10 may be formed of polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer or polyetheretherketone, and the body 10 may be a single-layer or multi-layer structure.

[0052] The thickness of the anti-corrosion protective layer 20 can be in the range of not less than 50μm, for example, it can be in the range of 50μm to 3mm; the thickness of the polymer anti-corrosion layer 21 can be in the range of 50μm to 150μm, for example, it can be 50μm, 60μm, 70μm, 80μm, 90μm, 100μm, 110μm, 120μm, 130μm, 140μm or 150μm; the thickness of the metal oxide anti-corrosion layer 22 can be in the range of 150μm to 1mm, for example, it can be 150μm, 200μm, 300μm, 400μm, 500μm, 600μm, 700μm, 800μm, 900μm or 1mm.

[0053] In such Figure 1In the fan blade shown, the anti-corrosion protective layer 20 is formed by a layer of polymer anti-corrosion layer 21, that is, a layer of polymer anti-corrosion layer 21 is provided on the surface of the body 10.

[0054] In such Figure 2 In the fan blade shown, the anti-corrosion protective layer 20 is formed by a layer of metal oxide anti-corrosion layer 22, that is, a layer of metal oxide anti-corrosion layer 22 is provided on the surface of the body 10.

[0055] In such Figure 3 In the blade shown, the anti-corrosion protective layer 20 is formed by a polymer anti-corrosion layer 21 and a metal oxide anti-corrosion layer 22. That is, the surface of the body 10 is provided with a polymer anti-corrosion layer 21 and a metal oxide anti-corrosion layer 22, and the metal oxide anti-corrosion layer 22 is located between the body 10 and the polymer anti-corrosion layer 21.

[0056] In such Figure 4 In the shown wind turbine blade, the anti-corrosion protective layer 20 is formed by two metal oxide anti-corrosion layers 22, but the two metal oxide anti-corrosion layers 22 are made of different materials, namely a first metal oxide anti-corrosion layer 221 and a second metal oxide anti-corrosion layer 222; and the first metal oxide anti-corrosion layer 221 is located between the body 10 and the second metal oxide anti-corrosion layer 222; wherein, the anti-corrosion performance of the second metal oxide anti-corrosion layer 222 is better than that of the first metal oxide anti-corrosion layer 221. For example, the second metal oxide anti-corrosion layer 222 is an Al2O3 layer formed by Al2O3, and the first metal oxide anti-corrosion layer 221 is a NiO layer formed by NiO.

[0057] In other embodiments, the anti-corrosion protective layer 20 may include more or fewer layers of polymer anti-corrosion layer 21 and metal oxide anti-corrosion layer 22; and the polymer anti-corrosion layer 21 may be a single layer or a multi-layer structure, and the metal oxide anti-corrosion layer 22 may be a single layer or a multi-layer structure; or, the polymer anti-corrosion layer 21 and the metal oxide anti-corrosion layer 22 may be distributed alternately, but should follow the rule that the anti-corrosion ability of the polymer anti-corrosion layer 21 or the metal oxide anti-corrosion layer 22 becomes stronger along the direction away from the body 10, that is, the film layer with relatively strong anti-corrosion performance is placed on the outer layer, and the film layer with relatively weak anti-corrosion performance is placed on the inner layer, so as to obtain a better anti-corrosion effect.

[0058] exist Figures 1 to 4 In the fan blade 1000 shown, the central hub 200 is circular. In other embodiments, the central hub can be triangular, regular hexagonal, etc.

[0059] Figure 5 This is a schematic diagram of the anti-corrosion process of a wind turbine blade, which is an exemplary embodiment of the present invention.

[0060] like Figure 5As shown, the corrosion resistance mechanism of the wind turbine blade in an exemplary embodiment of this invention is as follows:

[0061] Step 1: ZnO + 2Cl - → ZnCl2+O 2- ;

[0062] Step 2: 2Zn + O2 → 2ZnO; ZnO + H2O → Zn(OH)2;

[0063] Step 3: CO2 + ZnO → ZnCO3.

[0064] When the anti-corrosion protective layer 20 comes into contact with the corrosive medium 1, the surface of the anti-corrosion protective layer 20 is corroded to form a corrosion entrance 2. Then the corrosion develops along the anti-corrosion protective layer 20, thereby delaying the corrosion of the main body 10 of the wind turbine blade.

[0065] This utility model embodiment also provides an air conditioner, which includes the fan blades described above.

[0066] In some embodiments of this invention, the air conditioner may further include an aluminum heat exchanger.

[0067] Figure 6 A three-dimensional structural diagram of an outdoor unit of an air conditioner, which is an exemplary embodiment of the present utility model; Figure 7 for Figure 6 The image shows a top view of the outdoor unit of the air conditioner. Figure 8 for Figure 6 The image shows a side view of the outdoor unit of the air conditioner.

[0068] like Figures 6 to 8 As shown, the air conditioner includes a fan blade 1000; the fan blade 1000 can be installed on top of the heat exchanger 2000.

[0069] The rotation of the fan blade 1000 drives airflow, causing air to flow over the surfaces of the components of the heat exchanger 2000 (e.g., aluminum tubes and fins), increasing the contact area and contact time between the air and the heat exchanger, thereby improving heat exchange efficiency. For example, the fan blade 1000 can quickly remove heat from the surfaces of the aluminum tubes and fins, or introduce cool air to exchange heat with the medium inside the aluminum tubes, enabling the heat exchanger to transfer heat more effectively.

[0070] In some embodiments of this utility model, the air conditioner can be a window air conditioner, a split air conditioner, or a portable air conditioner.

[0071] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery", "the structure of the character 'kou'" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated structure has a specific orientation, is constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0072] In the description of the embodiments of the present utility model, unless otherwise clearly defined and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; the terms "installation", "connection", "fixed connection" may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0073] Although the disclosed embodiments of the present utility model are as above, the described content is only the embodiments adopted for the convenience of understanding the present utility model, and is not used to limit the present utility model. Any person skilled in the art within the scope of the present utility model can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed by the present utility model. However, the scope of patent protection of the present utility model shall still be defined by the appended claims.

Claims

1. A wind turbine blade, characterized in that, include: A central hub and multiple blades disposed on the central hub, the multiple blades being evenly disposed around the central hub; The blade has a first end near the central hub and a second end away from the central hub, the width of the first end being smaller than the width of the second end; the blade includes a body and an anti-corrosion protective layer disposed on the surface of the body; the anti-corrosion protective layer includes at least one of a polymer anti-corrosion layer and a metal oxide anti-corrosion layer.

2. The wind turbine blade according to claim 1, characterized in that, The thickness of the anti-corrosion protective layer is not less than 50 μm.

3. The wind turbine blade according to claim 1, characterized in that, The thickness of the polymer anti-corrosion layer is 50μm to 150μm.

4. The wind turbine blade according to claim 1, characterized in that, The thickness of the metal oxide anti-corrosion layer is not less than 150 μm.

5. The fan blade according to claim 4, characterized in that, The thickness of the metal oxide anti-corrosion layer is 150 μm to 1 mm.

6. The wind turbine blade according to any one of claims 1 to 5, characterized in that, The anti-corrosion protective layer includes a polymer anti-corrosion layer and a metal oxide anti-corrosion layer, and the metal oxide anti-corrosion layer is located between the polymer anti-corrosion layer and the body.

7. The wind turbine blade according to any one of claims 1 to 5, characterized in that, The body is formed from polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer or polyetheretherketone.

8. The wind turbine blade according to any one of claims 1 to 5, characterized in that, The center hub is formed of polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer or polyetheretherketone.

9. The wind turbine blade according to any one of claims 1 to 5, characterized in that, The polymer anti-corrosion layer includes any one or more layers selected from polytetrafluoroethylene, polyamide, polyvinyl chloride, polyaniline, epoxy resin, acrylonitrile-butadiene-styrene copolymer, and polyetheretherketone.

10. The wind turbine blade according to any one of claims 1 to 5, characterized in that, The metal oxide anti-corrosion layer includes any one or more layers selected from Al2O3, Cr2O3, NiO, Fe2O3, TiO2, NiO, ZnO, CeO2, and ZrO2.

11. The wind turbine blade according to any one of claims 1 to 5, characterized in that, It includes at least three blades; the width of the blades gradually increases along the direction away from the central hub.

12. An air conditioner, characterized in that, Includes the wind turbine blades according to any one of claims 1 to 11.

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