Wind power plant

Abstract

The present invention relates to a wind power device, which has a shell and at least one conversion component. The shell has a height direction, a width direction, a front side, a rear side, two opposite side parts, an air inlet, and an air outlet. The air inlet is formed on the front side, and the air outlet is formed on one of the side parts and is adjacent to the rear side. The conversion component includes a guide plate and a plurality of first fans. The guide plate extends from the front side to the rear side of the shell, and the guide plate has a rear end and a front end, and the position of the rear end is higher than the front end. The guide plate is formed with a plurality of grooves. The first fans are respectively arranged in the grooves. Each first fan has a rotating shaft and a plurality of blades. Among any two first fans, the size of a blade of a first fan farther from the air inlet is larger than the size of a blade of another first fan closer to the air inlet, whereby the conversion component in the present invention can guide and concentrate the airflow, and more effectively and completely utilize the energy contained in the airflow.

Description

Technical Field

[0001] The present invention relates to a wind power device, in particular to a wind power device with a plurality of fans arranged in a flow channel. Background Art

[0002] Generally speaking, a wind tunnel-type wind power device in the prior art has a wind tunnel and a plurality of fans arranged in the wind tunnel, such as the wind power devices described in the patents with publication numbers CN101109364A, CN114183304A, and CN1858442A, which have a plurality of identical fans arranged in a series and at equal heights to each other; however, in the wind tunnel, the fan located in the front will weaken the strength of the airflow, making it difficult for the airflow to efficiently drive the fan located in the rear, so this fan arrangement will reduce the overall operating efficiency of the wind power device and reduce the energy conversion rate.

[0003] In some designs, attempts are made to expand the cross-section of the wind tunnel and maintain a certain distance between the fan blades and the inner wall of the wind tunnel to maintain the strength of the airflow. However, because the fan blades are all the same size, when the airflow enters the wind tunnel, the airflow in the area between the blades and the inner wall will not be able to contact the blades of any fan and will eventually flow directly out of the wind tunnel, resulting in the kinetic energy of this part of the airflow not being effectively utilized, but wasted.

[0004] It can be seen from this that the wind power devices in the prior art need to be improved. Summary of the invention

[0005] The main purpose of the present invention is to provide a wind power device which can more efficiently utilize the energy contained in an airflow.

[0006] To achieve the above-mentioned object, the wind power device proposed by the present invention comprises:

[0007] A housing having:

[0008] A height direction, a width direction, a front side and a rear side, and two opposite side portions, the front side and the rear side are located at two opposite ends, and each of the side portions connects the front side and the rear side;

[0009] an air inlet formed on the front side of the housing;

[0010] an air outlet formed on one of the side surfaces of the housing and adjacent to the rear side of the housing; and

[0011] a chamber formed in the housing and connected to the air inlet and the air outlet; and

[0012] At least one conversion component is disposed in the housing, and the at least one conversion component has:

[0013] A guide plate is located in the chamber, the guide plate is connected to two opposite inner wall surfaces of the shell in the width direction, and the guide plate extends from the front side of the shell to the rear side of the shell; the guide plate has:

[0014] A front end and a rear end, which are respectively located at opposite ends of the guide plate, the front end is adjacent to the front side of the housing, and the rear end is adjacent to the rear side of the housing; in the height direction, the rear end is located higher than the front end;

[0015] A plurality of grooves are formed on the guide plate, the plurality of grooves are arranged along the extension direction of the guide plate, and the plurality of grooves are arranged at intervals from each other, and opposite ends of each groove extend along the width direction of the shell to two opposite inner wall surfaces of the shell respectively; and

[0016] A plurality of first fans are respectively located at the positions of the plurality of grooves, and the upper half of each of the first fans protrudes from the guide plate; each of the first fans has:

[0017] a rotating shaft located in the groove, the rotating shaft extending along the width direction and connected to the housing; and a plurality of fan blades connected to the rotating shaft along the circumferential direction of the rotating shaft, and the plurality of fan blades are spaced apart from each other;

[0018] Among them, the length of the multiple blades of each first fan along a radial direction of the rotating shaft is defined as a blade size, and among any two first fans, the blade size of the first fan farther from the air inlet is larger than the blade size of the other first fan closer to the air inlet; one end of the rotating shaft of one of the first fans extends outside the casing.

[0019] Therefore, the present invention has the advantage that the guide plate guides and concentrates the airflow, thereby increasing the strength of the airflow to drive the plurality of first fans. In addition, the configuration of the locations of the plurality of first fans and the sizes of the fan blades can also enable the fan blades of each first fan to contact the airflow in the entire cross-section between the guide plate and the top of the housing, thereby more fully utilizing the energy contained in the airflow.

[0020] Furthermore, the wind power device further comprises a plurality of filters, which are respectively arranged on the housing and located at the positions of the air inlet and the air outlet.

[0021] Furthermore, the wind power device further comprises a second fan, which is arranged on the housing and located at the position of the air outlet.

[0022] Furthermore, in the wind power device, each of the first fans further has two bearings, two of the bearings are disposed on the rotating shaft, and two of the bearings are connected to the housing.

[0023] Furthermore, the wind power device further comprises a generator, which is connected to the rotating shaft of one of the first wind turbines.

[0024] Furthermore, in the wind power device, there are multiple conversion components, and the chamber has a connecting portion, which is adjacent to the rear side of the housing and connects the spaces between the conversion components. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the figures are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art can select various possible shapes and proportional dimensions to implement the present invention according to the teachings of the present invention.

[0026] Figure 1 FIG. 1 is a schematic diagram of the appearance of the first embodiment of the present invention.

[0027] Figure 2 It is a side cross-sectional schematic diagram of the first embodiment of the present invention.

[0028] Figure 3 It is a schematic diagram of the appearance of a conversion assembly according to the first embodiment of the present invention, which does not include a second wind turbine and shows a generator connected to the conversion assembly.

[0029] Figure 4 FIG. 4 is a schematic diagram of the appearance of a second embodiment of the present invention.

[0030] Figure 5 It is a side cross-sectional schematic diagram of a second embodiment of the present invention. DETAILED DESCRIPTION

[0031] The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should all be considered to belong to the scope of the present invention.

[0032] The following is a detailed description of the technical means used by the present invention to achieve the intended purpose of the invention with reference to the drawings and preferred embodiments of the present invention.

[0033] First, please refer to Figures 1 to 3 The first embodiment of a wind power device proposed by the present invention comprises a housing 10, a conversion assembly 20, and a plurality of generators 30. The housing 10 has a height direction H and a width direction W, a front side 11, and a rear side 12. The housing 10 has an air inlet 13, an air outlet 14, two side portions 15, a plurality of filters 16, and a chamber 17.

[0034] The front side 11 and the rear side 12 are respectively located at two opposite ends of the housing 10. In this embodiment, the housing 10 is a rectangular parallelepiped, and the front side 11 and the rear side 12 are two opposite faces of the rectangular parallelepiped, but the present invention is not limited thereto. The shape of the housing 10 can be adjusted as required. The air inlet 13 is formed on the front side 11 of the housing 10. In this embodiment, the area of ​​the air inlet 13 is the same as the area of ​​the front side 11, but the present invention is not limited thereto.

[0035] The air outlet 14 is formed on the housing 10 and is adjacent to the rear side 12 of the housing 10; specifically, the housing 10 has two opposite side portions 15, and each side portion 15 is connected to the front side 11 and the rear side 12. In this embodiment, the housing 10 has two air outlets 14, and the two air outlets 14 are respectively formed at positions of the two side portions 15 adjacent to the rear side 12, but the present invention is not limited thereto; for example, in other embodiments, the housing 10 may have only one air outlet 14, and the air outlet 14 is formed on one of the side portions 15 of the housing 10; or the air outlet 14 is formed on the rear side 12 of the housing 10. In addition, in this embodiment, the area of ​​the air outlet 14 is smaller than the area of ​​the air inlet 13, and the air outlet 14 is adjacent to the top of the housing 10, but the present invention is not limited thereto, and the position of the air outlet 14 can be adjusted as required; for example, in other embodiments, the position of the air outlet 14 may be adjacent to the bottom of the housing 10, or located at the center of the rear side 12 along the height direction H, or located at other positions of the housing 10.

[0036] In this embodiment, the housing 10 has a plurality of filters 16 , each of which is disposed at the air inlet 13 and the air outlet 14 , but the present invention is not limited thereto. The filters 16 may not be disposed, or the positions of the filters 16 may be changed according to user needs.

[0037] The chamber 17 is formed inside the housing 10 , and the chamber 17 is connected to the air inlet 13 and the air outlet 14 , whereby an air flow can flow in through the air inlet 13 , pass through the chamber 17 , and then flow out from the air outlet 14 .

[0038] The conversion assembly 20 is disposed in the housing 10 , and includes a guide plate 21 and a plurality of first fans 22 .

[0039] The guide plate 21 is disposed in the chamber 17 and connected to two opposite inner walls of the housing 10 in the width direction W. The guide plate 21 extends from the front side 11 to the rear side 12 of the housing 10. The guide plate 21 has a front end 211, a rear end 212, and a plurality of grooves 213.

[0040] The front end 211 and the rear end 212 are opposite ends of the guide plate 21, and the front end 211 is located adjacent to the front side 11 of the housing 10, while the rear end 212 is located adjacent to the rear side 12 of the housing 10; wherein the rear end 212 is located higher in the height direction H than the front end 211 in the height direction H. Specifically, a flow channel is formed between the guide plate 21 and the inner top of the housing 10, and the guide plate 21 is inclined, whereby the cross-sectional area of ​​the flow channel is gradually reduced in the direction from the front end 211 to the rear end 212 of the guide plate 21.

[0041] Each groove 213 is formed on the guide plate 21, and each groove 213 is spaced apart from each other along the extension direction of the guide plate 21. Specifically, the plurality of grooves 213 are spaced apart from each other in the direction from the front end 211 to the rear end 212 of the guide plate 21. The opposite ends of each groove 213 extend to the opposite inner wall surfaces of the housing 10 along the width direction W of the housing 10, respectively.

[0042] A plurality of first fans 22 are respectively disposed on the housing 10 and located in the groove 213. Each of the first fans 22 has a rotating shaft 221 and a plurality of blades 222. In this embodiment, the upper half of each of the first fans 22 protrudes upward from the guide plate 21; in other words, the rotating shaft 221 of the first fan 22 is at the same height as the guide plate 21, but the present invention is not limited thereto. In addition, each of the first fans 22 in this embodiment is a vertical axis fan.

[0043] Both ends of the rotating shaft 221 are rotatably connected to the housing 10, and the rotating shaft 221 is located at the position of the groove 213 and extends along the width direction W; the fan blades 222 are connected to the rotating shaft 221 along the circumferential direction of the rotating shaft 221, and the fan blades 222 are arranged at intervals from each other. In this embodiment, both ends of the rotating shaft 221 of each first fan 22 extend outside the housing 10, but it is not limited to this; for example, in other embodiments (not shown in the figure), only one end of the rotating shaft 221 of one of the first fans 22 may extend outside the housing 10, and all the first fans 22 are connected by a connecting member (such as a belt) to concentrate the energy converted by the output of the rotating shaft 221 of one of the first fans 22.

[0044] In this embodiment, each fan blade 222 extends along the width direction W toward two opposite inner wall surfaces of the housing 10 ; in addition, each fan blade 222 has a wind receiving surface, and when the fan blade 222 rotates to the highest position along the rotating shaft 221 , the wind receiving surface faces the air inlet 13 .

[0045] The length of the blades 222 of the first fan 22 along the radial direction of the rotating shaft 221 is defined as a blade size, and among any two first fans 22, the blade size of the first fan 22 that is farther from the air inlet 13 is larger than the blade size of the other first fan 22 that is closer to the air inlet 13; in other words, each first fan 22 has a different blade size, and the first fans 22 are arranged starting from the air inlet 13 in the order of increasing blade sizes towards the air outlet 14.

[0046] In this embodiment, each first fan 22 may have two bearings 223, each bearing 223 is disposed on the rotating shaft 221 and connected to the housing 10. Specifically, the two bearings 223 are respectively connected to two opposite side surfaces 15 of the housing 10, thereby supporting the rotating shaft 221.

[0047] In this embodiment, the rotating shaft 221 of each first fan 22 is connected to a generator 30, whereby the first fan 22 can drive the generator 30 to generate electricity, but the present invention is not limited thereto. In other embodiments, the rotating shaft 221 of the first fan 22 can be connected to other types of devices, such as a gear set or a heat generator.

[0048] The wind power device of the present invention can further include a second fan 23, which is disposed at the position of the housing 10 at the air outlet 14. In the present embodiment, the second fan 23 is a horizontal axis fan and has a rotating shaft and a plurality of blades, the windward surface of each blade faces the inside of the housing 10, and the rotating shaft extends from the air outlet 14 to the outside of the housing 10, but the present invention is not limited thereto; in other embodiments, the second fan 23 may not be a horizontal axis fan, or the wind power device may not include the second fan 23.

[0049] When the wind power device of the present invention is used, the airflow flows into the chamber 17 through the air inlet 13 and then flows along the guide plate 21. Since the cross-sectional area of ​​the flow channel gradually decreases from the front end 211 to the rear end 212 of the guide plate 21, the airflow will be concentrated during the flow process. According to the continuum equation of the fluid, the airflow will be accelerated after being concentrated, and can have sufficient strength to drive the first fan 22 located farther away from the air inlet 13 in the flow channel, so that the energy in the airflow can be used more completely and efficiently.

[0050] Since the first fans 22 are arranged from the front end 211 to the rear end 212 of the guide plate 21 in order of increasing blade size, the multiple first fans 22 can be exposed to the airflow of the entire flow channel cross-section, so the wind power device of the present invention can effectively utilize the energy contained in the airflow; in addition, unlike the fans in the prior art that are arranged at the same height, the first fans 22 of the present invention are arranged along the inclined guide plate 21, which can reduce the impact of the first fan 22 at the front on the first fan 22 at the back.

[0051] Finally, when the airflow reaches the air outlet 14, the airflow can drive the second fan 23, thereby fully utilizing the energy contained in the airflow. In this embodiment, the wind power device is installed in a building, so the rear side 12 of the housing 10 is connected to the outer wall of the building, so the air outlet 14 is located on the side 15 of the housing 10, so the second fan 23 uses a horizontal axis fan to respond to the flow direction of the airflow, but it is not limited to this; in other embodiments where the air outlet 14 is located on the rear side 12 of the housing 10, the second fan 23 can use a vertical axis fan like the first fan 22.

[0052] Please refer to Figure 4 and Figure 5 The second embodiment of the wind power device of the present invention is similar to the first embodiment, and the main difference is that the second embodiment has three conversion assemblies 20 disposed in the housing 10A. The three conversion assemblies 20 are disposed in the chamber 17A along the height direction H, whereby the second embodiment of the wind power device can contact the airflow flowing in from a larger air inlet 13A, thereby converting more energy. In addition, the number of conversion assemblies 20 is not limited to three. For example, in other embodiments, the wind power device can have two conversion assemblies 20, or more than three conversion assemblies 20.

[0053] In this embodiment, a portion of the chamber 17A forms a connecting portion 171A, the connecting portion 171A is located adjacent to the rear side 12A of the housing 10A, and the connecting portion 171A connects the spaces between the conversion assemblies 20. The guide plates 21 of the conversion assemblies 20 do not extend to the connecting portion 171A, so the airflow can flow upward along the connecting portion 171A and then flow out through the air outlet 14 adjacent to the top of the housing 10A. Through the connecting portion 171A, the multiple airflows guided by the multiple guide plates 21 can be concentrated into a single airflow to increase the strength to drive the second fan 23.

[0054] In summary, in the wind power device of the present invention, the cross-section of the flow channel is gradually reduced by the oblique setting of the guide plate 21 of the conversion component 20, thereby concentrating the airflow; in addition, the multiple first fans 22 arranged in increasing order of the fan blade size, in conjunction with the guide plate 21, can contact the airflow of the entire cross-section of the flow channel, and can more completely utilize the energy contained in the airflow.

[0055] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been described as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the above-disclosed technical contents into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A wind power device, characterized in that: The wind power device comprises: A housing having: A height direction, a width direction, a front side and a rear side, and two opposite side portions, the front side and the rear side are located at two opposite ends, and each of the side portions connects the front side and the rear side; an air inlet formed on the front side of the housing; an air outlet formed on one of the side surfaces of the housing and adjacent to the rear side of the housing; and a chamber formed in the housing and connected to the air inlet and the air outlet; and At least one conversion component is disposed in the housing, and the at least one conversion component has: A guide plate is disposed in the chamber, the guide plate is connected to two opposite inner wall surfaces of the shell in the width direction, and the guide plate extends from the front side of the shell to the rear side of the shell; the guide plate has: A front end and a rear end, which are respectively located at opposite ends of the guide plate, the front end is adjacent to the front side of the housing, and the rear end is adjacent to the rear side of the housing; wherein in the height direction, the rear end is located higher than the front end; A plurality of grooves are formed on the guide plate, the plurality of grooves are arranged along the extension direction of the guide plate, and the plurality of grooves are arranged at intervals from each other, and opposite ends of each groove extend along the width direction of the shell to two opposite inner wall surfaces of the shell respectively; and A plurality of first fans are respectively located at the positions of the plurality of grooves, and the upper half of each of the first fans protrudes from the guide plate; each of the first fans has: a rotating shaft, which is located in the groove, and extends along the width direction and is connected to the housing; and A plurality of fan blades are connected to the rotating shaft along the circumferential direction of the rotating shaft, and the plurality of fan blades are spaced apart from each other; In which, the length of the multiple blades of each first fan along a radial direction of the rotating shaft is defined as a blade size, and among any two first fans, the blade size of the first fan farther from the air inlet is larger than the blade size of the other first fan closer to the air inlet; one end of the rotating shaft of one of the first fans extends outside the casing.

2. The wind power device according to claim 1, characterized in that: The wind power device also has: A plurality of filters are respectively arranged on the housing and located at the positions of the air inlet and the air outlet.

3. The wind power device according to claim 1, characterized in that: The wind power device also has: A second fan is arranged on the housing and located at the position of the air outlet.

4. The wind power device according to claim 1, characterized in that: Each of the first fans also has: Two bearings are arranged on the rotating shaft, and the two bearings are connected to the housing.

5. The wind power device according to claim 1, characterized in that: The wind power device also has: A generator is connected to the rotating shaft of one of the first wind turbines.

6. The wind power device according to claim 1, characterized in that: The number of the conversion components is multiple; and The chamber has a connecting portion, which is adjacent to the rear side of the housing and connects the spaces between the conversion components.

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