Miniature wind driven generator

Abstract

A miniature wind driven generator comprises a machine head rotating assembly, a machine body rotating assembly, a fan blade assembly and a machine shell, the machine body rotating assembly comprises a rotating rod sleeve and a rotating rod, the rotating rod sleeve is fixed to the bottom of the front side of the machine shell, and the upper end of the rotating rod sleeve extends into the machine shell; in conclusion, the fan blades with the small size are designed and are fixedly installed through the screws and the mortise and tenon joint structures, the structure is lighter, and connection is compact; the machine head rotating assembly is used for installing the fan blade assembly, the fan blade assembly drives the rotor assembly to rotate, and the machine body rotating assembly is used for driving the whole machine body to rotate, so that the machine body can swing towards the wind direction, and the wind directions of different angles are utilized to the maximum extent. The miniature wind driven generator can operate efficiently under different wind direction conditions, meanwhile, the size of equipment is reduced, and the applicability of the miniature wind driven generator in multiple scenes is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of wind power generation, and particularly relates to a micro wind turbine generator. Background Art

[0002] Wind turbine generators are widely used in people's living areas. The working principle of a wind turbine generator is that the wind wheel rotates under the action of wind force. It converts the kinetic energy of the wind into the mechanical energy of the wind wheel shaft, and the generator rotates to generate electricity driven by the wind wheel shaft. In recent years, especially for off-grid wind power generation for civil use, it is applied to off-grid power generation scenarios such as residential areas, factory buildings, and municipal street lights. Wind power generation uses the rotation of a fan to convert kinetic energy into electrical energy, and the internal structure that supports the rotation of this fan is called a double-rotor structure, that is, while the fan rotates, the whole body of the machine also rotates with the wind direction; however, the disadvantage of a wind turbine generator is its large volume and large rotational inertia, making it unable to be applied in multiple scenarios. Summary of the Utility Model

[0003] The utility model aims to provide a micro wind turbine generator to solve the technical problems of the existing wind turbine generator having a large volume and being unable to be applied in multiple scenarios.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A micro wind turbine generator includes a head rotation assembly, a body rotation assembly, a fan blade assembly, and a machine housing. The body rotation assembly includes a rod sleeve and a rod. The rod sleeve is fixed to the front bottom of the machine housing, and the upper end of the rod sleeve extends into the machine housing. A support rod through hole is provided at the upper end of the rod sleeve, and an annular groove is provided at the upper end of the rod. A partition ring is provided on the rod. The upper part of the rod is rotatably connected to the rod sleeve through two bearings. Snap rings are respectively provided at the annular groove and the partition ring, and the two snap rings respectively perform axial limiting on the two bearings; a spacer sleeve is also sleeved on the rod, and the spacer sleeve is located between the two bearings;

[0006] The head rotation assembly includes a mounting plate and a head support rod. The head support rod passes through the support rod through hole at the upper end of the rod sleeve. The head support rod is arranged horizontally in the front-rear direction. The rear end of the head support rod is a stud structure, and a nut is threadedly installed at the rear end of the head support rod. The front part of the head support rod passes through the front end of the machine housing. The mounting plate is rotatably installed on the front part of the head support rod through a bearing. A disk cover is fixed to the mounting plate by a plurality of screws. The fan blade assembly is fixed to the front surface of the disk cover by a plurality of screws. A rotor assembly is installed in the mounting plate, and a stator assembly is installed at the front end of the head support rod. The rotor assembly is arranged around the stator assembly.

[0007] Further, a stabilizing flag structure is provided at the rear of the machine housing.

[0008] Further, the fan blade assembly includes a plurality of fan blades. A plurality of mortise slots are formed in the disk cover. The mortise slots are arranged in an annular array along the center of the disk cover. The fan blades are arranged in one-to-one correspondence with the mortise slots. The end of the fan blade is a tenon structure, which is matched with the mortise slot. The tenon structure is installed on the corresponding mortise slot and fixedly connected by bolts.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: By designing fan blades with a small volume and fixing and installing them through screws and tenon-mortise structures, the structure is more lightweight and the connection is tighter. The head rotation assembly is used to install the fan blade assembly, and the fan blade assembly drives the rotor assembly to rotate. The body rotation assembly is used to drive the entire body to rotate, enabling the body to swing against the wind direction, maximizing the utilization of wind directions at different angles. By optimizing the mechanical structure, the micro wind turbine of the present utility model can maintain efficient operation under different wind direction conditions, while also reducing the volume of the device and enhancing its applicability in multiple scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0011] Figure 1 is a schematic structural diagram of a micro wind turbine of the present utility model;

[0012] Figure 2 is a schematic structural diagram of the body rotation assembly;

[0013] Figure 3 is an exploded view of the body rotation assembly;

[0014] Figure 4 is a cross-sectional view of the body rotation assembly;

[0015] Figure 5 is an installation schematic diagram of the fan blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] The following further describes the present utility model in detail with reference to the embodiments.

[0018] As Figures 1-5As shown in the figure, a specific embodiment of a micro wind turbine provided by the present utility model is as follows:

[0019] A micro wind turbine includes a head rotation assembly, a body rotation assembly, a fan blade assembly, and a machine housing 1. The head rotation assembly is used to install the fan blade assembly, and the body rotation assembly is used to install the machine housing 1, so that the machine housing 1 can swing against different wind directions to make the most of the wind directions at different angles. A stabilizing flag structure 2 is provided at the rear of the machine housing 1, and the stabilizing flag structure 2 helps to reduce the instability of the device caused by wind direction changes and improve the overall stability of the device.

[0020] The body rotation assembly includes a rotating rod sleeve 3 and a rotating rod 4. The rotating rod sleeve 3 is fixed to the front bottom of the machine housing 1, and the upper end of the rotating rod sleeve 3 extends into the machine housing 1. A support rod through hole 5 is provided at the upper end of the rotating rod sleeve 3. An annular groove 6 is provided at the upper end of the rotating rod 4. A separating ring 7 is provided on the rotating rod 4. The upper part of the rotating rod 4 is rotatably connected in the rotating rod sleeve 3 through two bearings 8. Snap rings 9 are respectively provided at the annular groove 6 and the separating ring 7, and the two snap rings 9 respectively perform axial limiting on the two bearings 8; A spacer sleeve 10 is also sleeved on the rotating rod 4, and the spacer sleeve 10 is located between the two bearings 8;

[0021] The head rotation assembly includes a mounting disc 11 and a head support rod 12. The head support rod 12 passes through the support rod through hole 5 at the upper end of the rotating rod sleeve 3. The head support rod 12 is arranged horizontally in the front-rear direction. The rear end of the head support rod 12 is a stud structure 13, and a nut is threadedly installed at the rear end of the head support rod 12. The front part of the head support rod 12 passes through the front end of the machine housing 1. The mounting disc 11 is rotatably installed on the front part of the head support rod 12 through a bearing. A disc cover 14 is fixed on the mounting disc 11 through several screws. The fan blade assembly is fixed on the front surface of the disc cover 14 through several screws. A rotor assembly is installed in the mounting disc 11. A stator assembly is installed at the front end of the head support rod 12. The rotor assembly is arranged around the stator assembly. The rotor assembly and the stator assembly are conventional technologies in the field of generators, and their specific structures will not be described in detail.

[0022] The specific installation structure of the fan blade assembly is as follows: The fan blade assembly includes several fan blades 15. Several mortise slots 16 are provided on the disc cover 14. The mortise slots 16 are arranged in an annular array along the center of the disc cover 14. The fan blades 15 are arranged in one-to-one correspondence with the mortise slots 16. The end of the fan blade 15 is a tenon structure 17, and the tenon structure 17 matches the mortise slot 16. The tenon structure 17 is installed on the corresponding mortise slot 16 and is fixedly connected through bolts.

[0023] The working principle of the micro wind turbine in this embodiment is as follows: The lower end of the rotating rod 4 is fixedly installed at a certain place. The rotating rod sleeve 3 is rotatably connected to the rotating rod 4 through a bearing, and the machine housing 1 is arranged on the rotating rod sleeve 3. Therefore, when the wind direction changes, the rotating rod sleeve 3 can drive the entire fuselage to swing against the wind, achieving the most ideal windward effect. At the same time, the mounting disk 11 is rotatably installed on the nose support rod 12 through a bearing. The fan blade 15 assembly rotates against the wind, driving the mounting disk 11 to rotate around the nose support rod 12. The rotor assembly is arranged on the mounting disk 11, and the rotor assembly starts to rotate around the stator assembly, cutting the induced wind magnetic induction lines to achieve the power generation effect. The nose rotating assembly and the fuselage rotating assembly in this embodiment perform different functions respectively, and they rotate independently without affecting each other.

[0024] It should be noted that in this article, terms such as "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such a process, method, article or device.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micro wind turbine, characterized in that: The invention comprises a head rotating assembly, a body rotating assembly, a fan blade assembly and a casing, wherein the body rotating assembly comprises a rotating rod sleeve and a rotating rod, wherein the rotating rod sleeve is fixed to the front bottom of the casing, and the upper end of the rotating rod sleeve extends into the casing, a support rod through hole is provided at the upper end of the rotating rod sleeve, an annular groove is provided at the upper end of the rotating rod, a separating ring is provided on the rotating rod, and the upper part of the rotating rod is rotatably connected in the rotating rod sleeve through two bearings, and the annular groove and the separating ring are respectively provided with retaining springs, and the two retaining springs respectively limit the axial position of the two bearings; a spacer sleeve is also provided on the rotating rod, and the spacer sleeve is located between the two bearings; The head rotating assembly includes a mounting plate and a head support rod. The head support rod is inserted into the support rod through hole at the upper end of the rotating rod sleeve. The head support rod is arranged in the front-to-back horizontal direction. The rear end of the head support rod is a stud structure. A nut is threadedly installed on the rear end of the head support rod. The front part of the head support rod passes through the front end of the machine casing. The mounting plate is rotatably installed at the front part of the head support rod through a bearing. A disk cover is fixed on the mounting plate by a number of screws. The fan blade assembly is fixed to the front surface of the disk cover by a number of screws. A rotor assembly is installed in the mounting plate. A stator assembly is installed at the front end of the head support rod. The rotor assembly is arranged around the stator assembly.

2. A micro wind turbine according to claim 1, characterized in that: A stabilizing flag structure is arranged at the rear of the housing.

3. A micro wind turbine according to claim 1, characterized in that: The fan blade assembly includes a plurality of fan blades, and a plurality of mortise grooves are opened on the disc cover. The mortise grooves are arranged in a circular array along the center of the disc cover. The fan blades are arranged one by one in correspondence with the mortise grooves. The end of the fan blade is a tenon structure, which matches the mortise groove. The tenon structure is installed on the corresponding mortise groove and is fixedly connected by bolts.

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