Wind generating set

Abstract

The utility model relates to the field of wind power generation, and aims to provide a wind generating set, which comprises a base, the power generation device is mounted on the base; the shell is located above the base, an air inlet is formed in the front side of the shell, and an air outlet channel is formed in the rear side; the slewing bearing is arranged between the base and the shell and is used for realizing rotation of the shell relative to the base; the safety fence is fixedly arranged on the base and located on the outer side of the shell, and the safety fence is elastically connected with the shell so as to absorb impact generated by an external wind source on the shell; wherein a wind wheel assembly is rotationally connected into the shell, the wind wheel assembly comprises a rotating shaft extending up and down and a plurality of wind wheels arranged on the rotating shaft in a sleeving mode at intervals, and the lower end of the rotating shaft penetrates through the bottom side of the shell and is connected with the power generation device. The wind wheel assembly can absorb impact force generated by an external wind source on the shell, and damage to the wind wheel assembly is avoided.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation, specifically a wind turbine generator set. Background Technology

[0002] Wind power generation has gained popularity due to its cleanliness, environmental benefits, renewable nature, and short infrastructure construction period. However, traditional wind duct designs often feature a single air intake path, resulting in significant rotational resistance to the rotor and impacting its efficiency. Furthermore, the lack of a proper airflow guidance structure within the duct hinders smooth airflow, further reducing overall air volume and energy efficiency, making it difficult to achieve the required high-efficiency wind power generation. In addition, in high-wind environments, the direct impact of external wind on the rotor's outer casing can cause structural impacts. Over time, this can damage the casing, compromising its protective function and ultimately affecting the normal operation and lifespan of the wind power generation system. Utility Model Content

[0003] The purpose of this invention is to provide a wind turbine generator set that can absorb the impact force of external wind on the outer casing and prevent damage to the wind turbine assembly.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A wind turbine generator set, comprising:

[0006] Base;

[0007] The power generation unit is mounted on the base;

[0008] The outer casing is located above the base, with an air inlet on the front and an air outlet on the rear.

[0009] A slewing bearing, installed between the base and the housing, is used to allow the housing to rotate relative to the base;

[0010] A safety fence is fixed to the base and located on the outside of the shell. The safety fence is elastically connected to the shell to absorb the impact of external wind on the shell.

[0011] The outer casing contains a rotatable wind turbine assembly, which includes a vertically extending rotating shaft and several wind turbines spaced apart on the rotating shaft. The lower end of the rotating shaft passes through the bottom side of the outer casing and is connected to the power generation device.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. Through the cooperation of the pressure relief spring, the railcar, and the ring guardrail, the impact force generated by the external wind source on the shell can be effectively absorbed, which improves the service life of the shell and thus better protects the wind turbine assembly. In addition, when the external wind source acts on the shell, under the guidance of the first wind guide arc surface, the second wind guide arc surface, and the wind guide tail fin, the external wind source drives the shell to rotate relative to the base through the slewing bearing, so that the wind duct turns to the windward side, thereby realizing automatic wind alignment.

[0014] 2. By setting the first and second air guide arc surfaces, the external air source is guided by the first and second air guide arc surfaces and enters the low-pressure area through the auxiliary air inlet, thereby increasing the air volume behind the wind turbine assembly, reducing the wind pressure behind the wind turbine, reducing the wind turbine's operating resistance, and improving the overall ventilation efficiency of the entire air duct. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of a wind turbine generator set according to the present invention;

[0016] Figure 2 yes Figure 1 A partial structural sectional view;

[0017] Figure 3 This is a structural schematic diagram of the wind turbine assembly of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the safety fence of this utility model;

[0019] Figure 5 yes Figure 4 A partial structural cross-sectional diagram;

[0020] Figure 6 This is a simplified structural diagram of the wind turbine;

[0021] Figure 7 yes Figure 1 A three-dimensional view of the local structure.

[0022] Labeling Explanation: 1 Base, 2 Power Generation Unit, 3 Housing, 300 Air Outlet Channel, 301 First Air Guide Curve, 302 Second Air Guide Curve, 303 Auxiliary Air Inlet, 304 Low-Pressure Zone, 4 Safety Fence, 41 Circular Guardrail, 42 Circular Slide Rail, 421 Circular Through-Slot, 43 Rail Cart, 44 Pressure Relief Spring, 5 Wind Turbine Assembly, 51 Rotating Shaft, 52 Wind Turbine, 521 Connecting Rod, 522 Circular Seat, 523 Wind Blade, 6 Air Intake Duct, 7 Air Guide Tail Fold, 8 Extension Rod, 9 Anemometer. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0024] like Figure 1-7 The diagram shown is a schematic representation of an embodiment of a wind turbine generator set provided by this utility model:

[0025] A wind turbine generator set, comprising:

[0026] Base 1;

[0027] Power generation device 2 is installed on base 1;

[0028] The outer casing 3 is located above the base 1, with an air inlet on its front side and an air outlet 300 on its rear side.

[0029] A slewing bearing is installed between the base 1 and the housing 3 to enable the housing 3 to rotate relative to the base 1;

[0030] Safety fence 4 is fixed on base 1 and located outside shell 3. Safety fence 4 is elastically connected to shell 3 to absorb the impact of external wind on shell 3.

[0031] The outer casing 3 is rotatably connected to a wind turbine assembly 5. The wind turbine assembly 5 includes a rotating shaft 51 extending vertically and a number of wind turbines 52 spaced apart on the rotating shaft 51. The lower end of the rotating shaft 51 passes through the bottom side of the outer casing 3 and is connected to the power generation device 2.

[0032] Specifically, the slewing bearing is a commercially available product, so it will not be described in detail here. The wind turbine assembly 5 is a vertical axis wind turbine.

[0033] The safety fence 4 includes a ring guardrail 41, a ring slide rail 42 and several track vehicles 43. The ring guardrail 41 is fitted on the outside of the outer shell 3 and includes multiple rail posts. The rail posts are fixed to the base 1 at circumferential intervals.

[0034] The annular slide rail 42 is arranged on the top side of the annular guardrail 41, and an annular through groove 421 is opened on the side of the annular slide rail 42 near the outer shell 3; a number of track cars 43 are slidably arranged in the annular slide rail 42, and each track car 43 is connected to the outer wall of the outer shell 3 with a pressure relief spring 44, and the pressure relief spring 44 is slidably engaged with the annular through groove 421.

[0035] Specifically, when the outer shell 3 is driven by an external air source and rotates relative to the base 1, the outer shell 3 drives the track car 43 to slide along the annular slide rail 42.

[0036] Several track vehicles 43 are arranged at intervals along the circumference of the circular slide rail 42.

[0037] The wind turbine 52 includes several connecting rods 521 and an annular seat 522. One end of the connecting rod 521 is fixed to the outer peripheral wall of the annular seat 522, and the several connecting rods 521 are arranged circumferentially. The other end of the connecting rod 521 is fixed with a wind blade 523. The wind blade 523 extends longitudinally, and the side of the wind blade 523 away from the connecting rod 521 is provided with a windward arc surface.

[0038] Preferably, there are 5 connecting rods 521 and 5 fan blades 523.

[0039] The air inlet is provided with several air inlets, each air inlet is equipped with an air duct 6, and the impeller 52 is located behind the air duct 6. The air inlets, air ducts 6 and impellers 52 are in a one-to-one correspondence.

[0040] The diameter of the air duct 6 gradually decreases from front to back towards its centerline, and the front end of the air duct 6 is fixed at the air inlet.

[0041] The rear left and right sides of the outer shell 3 have first air guiding arc surfaces 301, with the convex surfaces of the two first air guiding arc surfaces 301 facing each other. The front left and right sides of the outer shell 3 have second air guiding arc surfaces 302, with the convex surfaces of the two second air guiding arc surfaces 302 facing away from each other. The two second air guiding arc surfaces 302 are located between the two first air guiding arc surfaces 301, and an auxiliary air inlet 303 is formed between the first air guiding arc surface 301 and its corresponding second air guiding arc surface 302. A low-pressure zone 304 is formed between the two first air guiding arc surfaces 301, and external air sources enter the low-pressure zone 304 through the auxiliary air inlet 303 to reduce the wind pressure on the rear side of the wind turbine assembly 5.

[0042] The top of the outer casing 3 is equipped with a wind-guiding tail fin 7, and the wind-guiding tail fin 7, the air inlet and the air outlet 300 are located on the same straight line.

[0043] Furthermore, it also includes an extension rod 8, the air guide tail 7 is fixed to the top of the outer casing 3 by the extension rod 8, and the air guide tail 7 is located behind the air outlet channel 300.

[0044] An anemometer 9 is also installed on the top of the outer shell 3, and the anemometer 9 is located in front of the wind guide tail fin 7.

[0045] The principle of this utility model is roughly as follows:

[0046] When an external air source acts on the outer casing 3, under the guidance of the first air guide arc surface 301, the second air guide arc surface 302 and the air guide tail 7, the external air source drives the outer casing 3 to rotate relative to the base 1 through the slewing bearing, so that the air duct 6 turns to the windward side, thereby realizing automatic airflow.

[0047] Subsequently, the external air source enters the outer casing 3 in two directions. One air source acts directly on the impeller assembly 5 through the air duct 6, driving the impeller 52 to rotate. The other air source, guided by the first air guide arc surface 301 and the second air guide arc surface 302, enters the low-pressure zone 304 behind the impeller assembly 5 through the auxiliary air inlet 303. This increases the air volume behind the impeller 52, reduces the wind pressure behind the impeller 52, thereby reducing the operating resistance of the impeller 52 and improving the overall ventilation efficiency of the air duct.

[0048] Meanwhile, when an external wind source acts on the outer casing 3, the resulting impact force is transmitted to the ring guardrail 41 through the pressure relief spring 44 and the railcar 43, which prevents the outer casing 3 from being directly impacted, improves the service life of the outer casing 3, and thus better protects the wind turbine assembly 5.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A wind turbine generator set, characterized in that, include: Base (1); A power generation device (2) is installed on a base (1); The outer shell (3) is located above the base (1), with an air inlet on its front side and an air outlet (300) on its rear side. A slewing bearing is installed between the base (1) and the housing (3) to enable the housing (3) to rotate relative to the base (1); Safety fence (4) is fixed on base (1) and located outside shell (3). The safety fence (4) is elastically connected to shell (3) to absorb the impact of external wind on shell (3). The outer shell (3) is rotatably connected to a wind turbine assembly (5). The wind turbine assembly (5) includes a rotating shaft (51) extending vertically and a number of wind turbines (52) spaced on the rotating shaft (51). The lower end of the rotating shaft (51) passes through the bottom side of the outer shell (3) and is connected to the power generation device (2).

2. The wind turbine generator set according to claim 1, characterized in that: The safety fence (4) includes a ring guardrail (41), a ring slide rail (42) and several railcars (43). The ring guardrail (41) is fitted on the outside of the outer shell (3) and includes multiple rail posts. The rail posts are fixed on the base (1) at circumferential intervals. The annular slide rail (42) is arranged on the top side of the annular guardrail (41), and an annular through groove (421) is opened on the side of the annular slide rail (42) near the outer shell (3); a number of railcars (43) are slidably arranged in the annular slide rail (42), and each railcar (43) is connected to the outer wall of the outer shell (3) with a pressure relief spring (44), and the pressure relief spring (44) is slidably engaged with the annular through groove (421).

3. The wind turbine generator set according to claim 2, characterized in that: Several railcars (43) are arranged at intervals along the circumference of the circular slide rail (42).

4. The wind turbine generator set according to claim 1, characterized in that: The wind turbine (52) includes several connecting rods (521) and an annular seat (522). One end of the connecting rod (521) is fixed to the outer peripheral wall of the annular seat (522), and the several connecting rods (521) are arranged circumferentially. The other end of the connecting rod (521) is fixed with a wind blade (523). The wind blade (523) extends longitudinally, and the side of the wind blade (523) away from the connecting rod (521) is provided with a windward arc surface.

5. The wind turbine generator set according to claim 4, characterized in that: The air inlet is provided with several air inlets, each air inlet is equipped with a wind duct (6), the wind wheel (52) is located behind the wind duct (6), and the several air inlets, several wind ducts (6) and several wind wheels (52) are in a one-to-one correspondence.

6. The wind turbine generator set according to claim 5, characterized in that: The diameter of the air duct (6) gradually decreases from front to back towards its centerline, and the front end of the air duct (6) is fixed at the air inlet.

7. The wind turbine generator set according to claim 1, characterized in that: The rear section of the outer shell (3) has a first air guiding arc surface (301) on the left and right sides, and the convex surfaces of the two first air guiding arc surfaces (301) are arranged opposite each other. The front section of the outer shell (3) has a second air guiding arc surface (302) on the left and right sides, and the convex surfaces of the two second air guiding arc surfaces (302) are arranged opposite each other. The two second air guiding arc surfaces (302) are located between the two first air guiding arc surfaces (301), and an auxiliary air inlet (303) is formed between the first air guiding arc surface (301) and its corresponding second air guiding arc surface (302). A low-pressure zone (304) is formed between the two first air guiding arc surfaces (301), and an external air source enters the low-pressure zone (304) through the auxiliary air inlet (303) to reduce the wind pressure on the rear side of the wind turbine assembly (5).

8. The wind turbine generator set according to any one of claims 1 to 7, characterized in that: The top of the outer shell (3) is equipped with a wind guide tail fin (7), and the wind guide tail fin (7), the air inlet and the air outlet (300) are located on the same straight line.

9. The wind turbine generator set according to claim 8, characterized in that: It also includes an extension rod (8), the air guide tail fin (7) is fixed to the top of the outer shell (3) by the extension rod (8), and the air guide tail fin (7) is located behind the air outlet channel (300).

10. The wind turbine generator set according to claim 8, characterized in that: An anemometer (9) is also installed on the top of the outer shell (3), and the anemometer (9) is located in front of the wind guide tail fin (7).

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