TWM594065U - Wind power generation apparatus and steering speed limiting device - Google Patents

Abstract

The present invention discloses a wind power generation device, including a wind power generation device capable of rotating around a rotation axis of the wind power generation device and a steering speed limiting device provided for the wind power generation device. The steering speed limiting device includes a seat body, a metal element surrounding the seat body, a radial magnetic module disposed inside the metal element, and connecting the metal element and the seat body At least one steering bearing. When the metal element and the wind power generation device rotate synchronously at a rotation rate relative to the seat body portion through at least one steering bearing about the rotation axis, the radial magnetic module and the The metal elements can jointly produce a first eddy current that limits the rotation rate.

Description

Wind power generation equipment and steering speed limiting device

This creation relates to a power generation equipment and speed limiting device, especially a wind power generation equipment and steering speed limiting device.

When the existing wind power generation equipment is faced with an excessive wind direction change, the excessive wind direction change will cause the existing wind power generation equipment to rotate at an excessively fast rate, thereby causing the existing wind power generation equipment to be easily damaged. When the existing wind power generation equipment is faced with frequent wind direction changes, the frequent wind direction changes will frequently change the rotation speed and direction of the existing wind power generation equipment, thereby making the existing wind power generation equipment vulnerable to fatigue.

Therefore, the author believes that the above-mentioned defects can be improved. Naite devotes himself to research and cooperates with the application of scientific principles, and finally proposes a original design with reasonable design and effective improvement of the above-mentioned defects.

This creative embodiment is to provide a wind power generation equipment and a steering speed limit device, which can effectively improve the defects that may be generated by the existing wind power generation equipment.

In order to solve the above technical problems, one of the technical solutions adopted in this work is to provide a wind power generation device, including: a wind power generation device and a steering speed limit device. The wind power generator can rotate around a rotation axis of the wind power generator. The steering speed limit device is provided for the wind power generation device, and the steering speed limit device includes: a body, a metal element, a radial magnetic module, and at least one steering bearing. The seat body portion includes a fixed end and a support shaft protruding from the fixed end, and the support shaft is parallel to the rotation axis. The metal element is disposed around the support shaft. Wherein, the metal element and the wind power generator can rotate synchronously around the rotation axis relative to the support shaft at a rotation rate. The radial magnetic module is disposed inside the metal element and is separated from the metal element by a separation distance between 0.5 mm and 20 mm. The radial magnetic module is connected to one end of the support shaft and includes at least one radial magnetic unit. At least one of the radial magnetic units is disposed around the support shaft and includes Two first polar ends arranged radially. At least one of the steering bearings connects the metal element and the support shaft. When the metal element and the wind power generation device rotate synchronously with respect to the support shaft at the rotation rate through at least one steering bearing around the rotation axis, the radial magnetic module and the The metal elements can jointly produce a first eddy current that limits the rotation rate. The fixed end of the seat body can be used to connect with a tower, so that the steering speed limiting device can be fixedly installed on the tower.

In order to solve the above technical problems, one of the technical solutions adopted in this creation is to provide a steering speed limit device that can be used for a wind power generation device. The steering speed limit device includes: a body, a metal element, a radial magnetic module, and at least one steering bearing. The seat body portion includes a fixed end and a support shaft protruding from the fixed end, and the support shaft defines a rotation axis. The metal element is disposed around the support shaft. The metal element can rotate with the wind power generation device at a rotation rate relative to the support shaft about the rotation axis. The radial magnetic module is disposed inside the metal element and is separated from the metal element by a separation distance between 0.5 mm and 20 mm. The radial magnetic module is connected to one end of the support shaft and includes at least one radial magnetic unit. At least one of the radial magnetic units is disposed around the support shaft and includes Two first polar ends arranged radially. At least one of the steering bearings connects the metal element and the support shaft. When the metal element and the wind power generation device rotate around the rotation axis through at least one of the steering bearings relative to the support shaft at the rotation rate, the radial magnetic module and the The metal elements can jointly produce a first eddy current that limits the rotation rate.

One of the beneficial effects of this creation is that the wind power generation equipment and steering speed limit device provided by this creation can jointly produce the first limit of the rotation rate through the "radial magnetic module and the metal element "Eddy current" technical solution to improve the existing wind power generation equipment has the defects of easy damage and easy fatigue.

In order to understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings of this creation, but these descriptions and drawings are only used to illustrate this creation, not to make any protection to this creation. limit.

The following is a description of the embodiments disclosed in this creation by specific specific examples. Those skilled in the art can understand the advantages and effects of this creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments. The details in this specification can also be based on different views and applications, and various modifications and changes can be made without departing from the concept of this creation. In addition, the drawings in this creation are only a schematic illustration, not based on actual size, and are declared in advance. The following embodiments will further describe the relevant technical content of the creation, but the disclosed content is not intended to limit the protection scope of the creation.

It should be understood that although terms such as “first”, “second”, and “third” may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" as used herein may include any combination of any one or more of the associated listed items, depending on the actual situation.

[First Embodiment]

Please refer to FIG. 1 to FIG. 3, the present invention is a wind power generation device 100. FIG. 1 is a schematic diagram of a wind power generation device according to a first embodiment of the creation, FIG. 2 is a partial perspective cross-sectional schematic view of the wind power generation device according to the first embodiment of the creation, and FIG. 3 is a wind power generation device according to the first embodiment of the creation A schematic partial cross-sectional view taken along the section line III-III of FIG. 1.

The (longitudinal direction) of the wind power generation equipment 100 defines a rotation axis R, and the wind power generation equipment 100 includes a wind power generation device 1 capable of rotating around the rotation axis R of the wind power generation equipment 100 and a power supply A steering speed limiting device 2 provided in the wind power generator 1. Although this embodiment is described by using the wind power generation device 1 in combination with the steering speed limiting device 2, the creation is not limited to this. For example, in other embodiments not shown in this creation, the steering speed limiting device 2 may also be used alone (eg, sold) or used with other components.

The wind power generator 1 in this embodiment can provide the function of converting wind to generate electricity, but this composition does not limit the structure of the wind power generator 1. That is to say, any wind power generation device having any different structure can be the wind power generation device 1 referred to in this creation. In addition, the wind power generation device 1 may include at least one electric wire (not shown in the figure) that is passed through the steering speed limiting device 2. The at least one electric wire can transmit the electric power generated by the wind power generation device 1, but the author does not limit the shape and installation position of the at least one electric wire.

Please refer to FIG. 2 and FIG. 3, the steering speed-limiting device 2 includes a body 21, a metal element 22 surrounding the seat body 21 (and having a tubular shape), and disposed inside the metal element 22 A radial magnetic module 23, and at least one steering bearing 24. The steering speed-limiting device 2 can be provided for the wind power generator 1 to set the basis to limit the rotation of the wind power generator 1.

The connection relationship between the wind power generator 1 and the steering speed limiter 2 may vary according to demand. For example, the wind power generation device 1 is detachably provided in the steering speed limiting device 2 or is integrally formed in the steering speed limiting device 2, and the original creation is not limited herein.

Please refer to FIG. 3, the seat body 21 includes a fixed end 211 and a support shaft 212 protruding from the fixed end 211, and the support shaft 212 is parallel to the rotation axis R; that is, In this embodiment, the rotation axis R can also be regarded as defined by the length direction of the support shaft 212. The fixed end 211 is located below the support shaft 212, and the fixed end 211 can be used to connect with a tower T, so that the steering speed limiting device 2 can be fixedly disposed on the tower T, but this creation is not limited to this. For example, in other embodiments not shown in the present creation, the steering speed limit device 2 may also be connected to a structure other than the tower T through the fixed end 211.

In this embodiment, the support shaft 212 is substantially hollow and cylindrical, and the support shaft 212 surrounds and forms an accommodating space SP, so that the wire of the wind power generator 1 can pass through the The accommodating space SP of the support shaft 212. However, the present invention does not limit the shape of the support shaft 212, and the electric wire of the wind power generator 1 is not limited to pass through the accommodating space SP.

The metal element 22 is disposed around the support shaft 212. The metal element 22 and the wind power generation device 1 can rotate synchronously at a rotation rate relative to the support shaft 212 about the rotation axis R through at least one steering bearing 24. In detail, when the wind direction changes, the metal element 22 and the wind power generator 1 rotate synchronously, so that the wind power generator 100 can preferably convert the wind power to generate electricity. In this embodiment, the metal element 22 is substantially hollow and cylindrical, but the appearance of the metal element 22 is not limited in this creation.

In this embodiment, the radial magnetic module 23 is an annular sheet. The radial magnetic module 23 is disposed inside the metal element 22 and is spaced from the metal element 22 by 0.5 mm to 20 mm A separation distance between D1. Preferably, the separation distance D1 is between 1 mm and 3 mm. The radial magnetic module 23 is formed with an opening 23a corresponding to the support shaft 212, so that the wire of the wind power generator 1 can pass through the position of the radial magnetic module 23 The opening 23a and the accommodating space SP of the support shaft 212. Therefore, the power generated by the wind power generation apparatus 100 can be transmitted to an external device (not shown) through the wire. In this embodiment, the radial magnetic module 23 is locked to the support shaft 212 by a plurality of screws (as shown in FIGS. 2 and 3 ), but the radial magnetic module 23 and the connection relationship of the support shaft 212 are restricted.

The radial magnetic module 23 is connected to one end of the support shaft 212 and includes at least one radial magnetic unit 231. At least one of the radial magnetic units 231 is disposed around the support shaft 212 and includes two first polar ends 2311 arranged radially with respect to the support shaft 212; that is, the radial magnetic The arrangement direction of the two first polar ends 2311 of the unit 231 is vertical and passes through the support shaft 212 (or the rotation axis R).

As shown in FIGS. 2 and 3, the radial magnetic module 23 in this embodiment includes a plurality of radial magnetic units 231, and each of the radial magnetic units 231 may be a magnet Or magnet, but this book is not limited here. In the two first polar ends 2311 of each radial magnetic unit 231 in this embodiment, the first polar end 2311 away from the support shaft 212 is an N pole 2311N, and is adjacent to the The first polar end 2311 of the support shaft 212 is an S pole 2311S.

It should be noted that this creation does not limit the positional relationship between the N-terminal 2311N and the S-terminal 2311S. That is to say, in other embodiments not shown in this creation, the first polar end 2311 away from the support shaft 212 may be the S extreme 2311S and adjacent to the first end of the support shaft 212 The polar terminal 2311 may be the N terminal 2311N.

At least one of the steering bearings 24 connects the metal element 22 and the support shaft 212 and can be used to assist the rotation of the metal element 22. In this embodiment, the number of at least one steering bearing 24 is two, but the number of at least one steering bearing 24 is not limited in this creation. In other embodiments not shown in this creation, the number of at least one steering bearing 24 may be one or more.

In this embodiment, at least one of the steering bearings 24 may include, but is not limited to, an inner side wall 241 connected to the support shaft 212, an outer side wall 242 connected to the metal element 22, and disposed on the A plurality of balls 243 between the inner side wall 241 and the outer side wall 242. Each of the balls 243 defines a center point 243a.

When the metal element 22 and the wind power generator 1 rotate synchronously with respect to the support shaft 212 through at least one steering bearing 24 around the rotation axis R, the outer side wall 242 can follow the metal The rotation of the element 22 rotates around the support shaft 212, and each of the balls 243 can rotate around the center point 243a with the rotation of the outer side wall 242, thereby assisting the metal element 22 and all The synchronous rotation of the wind power generator 1 can further reduce the wear caused by the metal element 22 and the wind power generator 1 rotating together.

When the metal element 22 and the wind power generator 1 rotate synchronously with respect to the support shaft 212 through at least one steering bearing 24 about the rotation axis R, the radial magnetic module 23 and the The metal element 22 can collectively generate a first eddy current that limits the rotation rate of the metal element 22.

The first eddy current can limit the rotation rate of the metal element 22, thereby preventing the rotation rate from being increased or decreased too quickly or frequently. Furthermore, through the first eddy current, the rotation rate will not be increased or decreased too quickly or frequently, so that the wind power generation device 100 will not have the defects of being easily damaged or easily fatigued.

[Second Embodiment]

Please refer to FIG. 4 to FIG. 5. FIG. 4 is a schematic partial cross-sectional schematic view of a wind power generation device according to a second embodiment of the invention, and FIG. 5 is a schematic partial cross-sectional schematic view of a wind power generation device according to a second embodiment of the invention. . This embodiment is similar to the first embodiment described above, so the similarities between the two embodiments will not be repeated, and the differences between the two embodiments are roughly explained as follows:

The steering speed-limiting device 2 may further include an axial magnetic module 25 adjacent to one end of the metal element 22, and the axial magnetic module 25 includes an axis disposed around the support shaft 212 Multiple axial magnetic units 251. Each of the axial magnetic units 251 includes two second polar ends 2511, and the arrangement direction of the two second polar ends 2511 is parallel to the support shaft 212. The axial magnetic module 25 is separated from the metal element 22 by a gap D2, and the gap D2 is not greater than 20 mm.

In this embodiment, each of the axial magnetic units 251 may be a magnet or a magnet, but the author does not limit it here. In the two second polar ends 2511 of each of the axial magnetic units 251 in this embodiment, the second polar end 2511 away from the metal element 22 is an S pole 2511S, adjacent to the metal The second polar end 2511 of the element 22 is an N terminal 2511N.

It should be noted that this creation does not limit the positional relationship between the N-terminal 2511N and the S-terminal 2511S. That is to say, in other embodiments not shown in the present creation, the second polar end 2511 away from the metal element 22 may be the N pole 2511N and adjacent to the second of the metal element 22 The polar end 2511 may be the S extreme 2511S.

When the metal element 22 and the wind power generator 1 rotate synchronously relative to the support shaft 212 through at least one steering bearing 24 about the rotation axis R, the axial magnetic module 25 and The metal element 22 can jointly generate a second eddy current that limits the rotation rate of the metal element 22. The second eddy current can be matched with the first eddy current, so that the steering speed limiting device 2 can better limit the rotation rate of the metal element 22. Therefore, the possible performance of the wind power plant 100 being damaged or fatigued is further reduced.

[Third Embodiment]

Please refer to FIG. 6 to FIG. 7, FIG. 6 is a schematic partial cross-sectional schematic view of a wind power generation device according to a third embodiment of the creation, and FIG. 7 is a schematic partial cross-sectional schematic view of a wind power generation device according to a third embodiment of the creation. . This embodiment is similar to the first embodiment described above, so the similarities between the two embodiments will not be repeated, and the differences between the two embodiments are roughly explained as follows:

In this embodiment, the number of the radial magnetic modules 23 is two. One of the radial magnetic modules 23 is disposed inside the metal element 22 (as in the first embodiment of the present creation), and the other radial magnetic module 23 is located outside the metal element 22 and surrounds the述金属Element22. That is to say, the number of the radial magnetic modules 23 in this creation can be changed according to requirements, and the number of the radial magnetic modules 23 in this creation is not limited to one or two.

[Fourth embodiment]

Please refer to FIG. 8 to FIG. 9, FIG. 8 is a partial perspective cross-sectional schematic view of the wind power generator of the fourth embodiment of the invention, and FIG. 9 is a partial plane cross-sectional view of the wind power generator of the fourth embodiment of the invention Schematic. This embodiment is similar to the second and third embodiments described above. The differences between the fourth embodiment and the second and third embodiments are roughly described as follows:

In this embodiment, the wind power generation device 100 includes the axial magnetic module 25 (as in the second embodiment of the present creation), and the number of the radial magnetic modules 23 in this embodiment is Two (as in the third embodiment of this creation). The installation positions of the axial magnetic module 25 and the two radial magnetic modules 23 have been described in the second embodiment and the third embodiment, respectively, and will not be repeated here. The present embodiment provides one of the embodiments regarding the number and installation positions of the radial magnetic modules 23 and the axial magnetic modules 25, but the author does not limit it here.

[Fifth Embodiment]

Please refer to FIG. 10, which is a schematic partial cross-sectional view of a wind power generation device according to a fifth embodiment of the invention. This embodiment is similar to the first embodiment described above, so the similarities between the two embodiments will not be repeated, and the differences between the two embodiments are roughly explained as follows:

In this embodiment, the number of at least one radial magnetic unit 231 included in the radial magnetic module 23 is one, and at least one of the radial magnetic units 231 is ring-shaped. In this embodiment, at least one radial magnetic unit 231 in a ring shape completely surrounds the support shaft 212; the inner side of at least one radial magnetic unit 231 in a ring shape is the S pole 2311S, which is An outer side of at least one of the radial magnetic units 231 in a ring shape is the N pole 2311N. However, the author does not limit the shape of at least one radial magnetic unit 231 and the positions of the S-pole 2311S and the N-pole 2311N.

[Technical effect of this creative example]

One of the beneficial effects of this creation is that the wind power generation equipment and the steering speed limiting device provided by this creation can jointly limit the rotation by "the radial magnetic module and the metal element "The speed of the first eddy current" technical solution to improve the existing wind power generation equipment has the defects of easy damage and easy fatigue.

The content disclosed above is only a preferred and feasible embodiment of this creation, and does not limit the scope of the patent of this creation, so any equivalent technical changes made using this specification and the graphic content are included in the patent scope of this creation. Inside.

100: Wind power generation equipment 1: Wind power generator 2: Steering speed limit device 21: seat body 211: fixed end 212: Support shaft 22: Metal components 23: Radial magnetic module 231: Radial magnetic unit 23a: opening 2311: first polar end 2311S: S extreme 2311N: N extreme 24: steering bearing 241: inner side wall 242: outer side wall 243: Ball 243a: center point 25: axial magnetic module 251: Axial magnetic unit 2511: second polarity terminal 2511S: S extreme 2511N: N extreme T: Tower R: axis of rotation SP: accommodating space D1: Separation distance D2: clearance

FIG. 1 is a schematic diagram of a wind power generation device according to a first embodiment of the creation.

FIG. 2 is a schematic partial cross-sectional view of the wind power generation device of the first embodiment of the creation.

FIG. 3 is a schematic partial cross-sectional view of the wind power generation device according to the first embodiment of the creation, taken along section line III-III of FIG. 1.

FIG. 4 is a schematic partial cross-sectional view of a wind power generation device according to a second embodiment of the invention.

FIG. 5 is a partial plan cross-sectional schematic diagram of a wind power generation device according to a second embodiment of the invention.

FIG. 6 is a schematic partial cross-sectional view of a wind power generation device according to a third embodiment of the invention.

FIG. 7 is a partial plan cross-sectional schematic diagram of a wind power generation device according to a third embodiment of the invention.

FIG. 8 is a schematic partial cross-sectional view of a wind power generation device according to a fourth embodiment of the invention.

FIG. 9 is a schematic partial cross-sectional view of a wind power generation device according to a fourth embodiment of the invention.

FIG. 10 is a schematic partial cross-sectional view of a wind power generation device according to a fifth embodiment of the invention.

100: Wind power generation equipment

1: Wind power generator

2: Steering speed limit device

21: seat body

22: Metal components

23: Radial magnetic module

231: Radial magnetic unit

23a: opening

24: steering bearing

T: Tower

R: axis of rotation

Claims (10)

A wind power generation equipment, including: A wind power generation device capable of rotating around a rotation axis of the wind power generation equipment; and A steering speed limit device is provided for the wind power generation device. The steering speed limit device includes: A body portion including a fixed end and a support shaft protruding from the fixed end, and the support shaft is parallel to the rotation axis; A metal element disposed around the support shaft; wherein, the metal element and the wind power generator can rotate synchronously at a rotation rate relative to the support shaft about the rotation axis; A radial magnetic module, which is disposed inside the metal element and is separated from the metal element by a separation distance between 0.5 mm and 20 mm; wherein, the radial magnetic module is connected to the support One end of the shaft and including at least one radial magnetic unit, at least one of the radial magnetic units is disposed around the support shaft and includes two first polar ends arranged radially with respect to the support shaft; and At least one steering bearing connecting the metal element and the support shaft: Wherein, when the metal element and the wind power generation device rotate synchronously with respect to the support shaft at the rotation rate through at least one steering bearing around the rotation axis, the radial magnetic module and The metal elements can jointly generate a first eddy current that limits the rotation rate; Wherein, the fixed end of the seat body portion can be used to connect with a tower, so that the steering speed limiting device can be fixedly arranged on the tower. The wind power generation device according to claim 1, wherein the separation distance is between 1 mm and 3 mm. The wind power generation device according to claim 1, wherein the number of at least one radial magnetic unit included in the radial magnetic module is one, and at least one of the radial magnetic units is ring-shaped. The wind power generation device according to claim 1, wherein the steering speed limiting device further includes an axial magnetic module adjacent to one end of the metal element, and the axial magnetic module includes an A plurality of axial magnetic units around the support shaft, wherein each of the axial magnetic units includes two second polar ends, and the arrangement direction of the two second polar ends is parallel to the support shaft. The wind power generation apparatus according to claim 4, wherein when the metal element and the wind power generation device are synchronized around the rotation axis through at least one steering bearing, the rotation speed is synchronized with respect to the support shaft at the rotation rate During rotation, the axial magnetic module and the metal element can jointly generate a second eddy current that limits the rotation rate. The wind power generation device according to claim 4, wherein the axial magnetic module is separated from the metal element by a gap, and the gap is not greater than 20 mm. The wind power generation device according to claim 1, wherein at least one of the steering bearings includes: An inner side wall connected to the support shaft; An outer side wall connected to the metal element, wherein the outer side wall can rotate around the support axis as the metal element rotates; and A plurality of balls are disposed between the inner side wall and the outer side wall and each defines a center point, wherein each of the balls can rotate around the center point along with the rotation of the outer side wall. A steering speed limit device can be used for a wind power generation device. The steering speed limit device includes: A body part includes a fixed end and a support shaft protruding from the fixed end, and the support shaft defines a rotation axis; A metal element disposed around the support shaft; wherein the metal element and the wind power generator can rotate about the rotation axis relative to the support shaft at a rotation rate; A radial magnetic module, which is disposed inside the metal element and is separated from the metal element by a separation distance between 0.5 mm and 20 mm; wherein, the radial magnetic module is connected to the support At one end of the shaft and including at least one radial magnetic unit, at least one of the radial magnetic units is disposed around the support shaft and includes two first polar ends arranged radially with respect to the support shaft; At least one steering bearing connecting the metal element and the support shaft: Wherein, when the metal element and the wind power generation device rotate around the rotation axis through at least one steering bearing relative to the support shaft at the rotation rate, the radial magnetic module and The metal elements can jointly generate a first eddy current that limits the rotation rate. The steering speed limiting device according to claim 8, wherein the steering speed limiting device further includes an axial magnetic module adjacent to one end of the metal element, and the axial magnetic module includes a A plurality of axial magnetic units around the support shaft, wherein each of the axial magnetic units includes two second polar ends, and the arrangement direction of the two second polar ends is parallel to the support shaft; wherein , When the metal element and the wind power generation device rotate around the rotation axis synchronously relative to the support shaft at the rotation rate through at least one steering bearing, the axial magnetic module and the rotor The metal element can jointly generate a second eddy current that limits the rotation rate; wherein, the axial module and the metal element are separated by a gap, and the gap is not greater than 20 mm. The steering speed limiting device according to claim 8, wherein the separation distance is between 1 mm and 3 mm; wherein at least one of the steering bearings includes an inner side wall connected to the support shaft, connected to An outer side wall of the metal element, and a plurality of balls disposed between the inner side wall and the outer side wall; wherein, the outer side wall can rotate around the support axis as the metal element rotates ; Wherein, each of the balls defines a center point, and each of the balls can rotate around the center point along with the rotation of the outer side wall.

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