A wind turbine blade profile display device

Abstract

The present invention discloses a wind turbine generator outline display device, characterized in that it includes a hub, multiple blades, a first light source, and multiple first light assemblies; the multiple blades are evenly arranged along the circumference of the hub; the first light source is built into the hub; the first light assemblies are arranged in a one-to-one correspondence with the blades, and each first light assembly includes a first display unit and a first optical fiber, and the first display unit is arranged at the end of the blade away from the hub; one end of the first optical fiber receives the light emitted by the first light source, and the other end outputs the light to the first display unit. The light emitted by the first light source is transmitted to the first display unit through the first optical fiber, so that the flashing frequency of the light emitted by the first display unit is consistent, and the outline and movement trajectory of the three blades can be displayed, so as to inform aircraft and flying birds that there is equipment here.

Description

Technical Field

[0001] The present invention relates to the field of wind power generation equipment, and in particular to a blade profile indicator device for a wind power generator set. Background Art

[0002] For structures with a height of more than 100 meters, aviation obstacle indicator lights must be installed on the outer contours according to aviation standards. Currently, the blades of some wind turbines are more than 150 meters long, and the average height of 6MW units is close to or even exceeds 300 meters. Therefore, the outline and obstacle display of wind turbines have become essential elements of the unit's external indication system. However, the blades of current wind turbines do not provide obstacle indication devices on the outer contours. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above technical deficiencies and provide a wind turbine blade outline indicator device to solve the technical problem that the blades of wind turbines in the prior art do not have an obstacle indication device with an outer contour.

[0004] In order to achieve the above-mentioned technical objectives, the technical solution of the present invention provides a wind turbine generator outline device, which is characterized in that it includes a hub, multiple blades, a first light source, and multiple first lighting components; the multiple blades are evenly arranged on the hub along the circumferential direction; the first light source is built into the hub; the first lighting components are arranged in a one-to-one correspondence with the blades, and each first lighting component includes a first display unit and a first optical fiber, and the first display unit is arranged at the end of the blade away from the hub; one end of the first optical fiber receives the light emitted by the first light source, and the other end outputs the light to the first display unit.

[0005] Compared with the prior art, the beneficial effects of the present invention include: the first light source is built into the hub, and is not directly installed on the end of the blade away from the hub, which can reduce the internal structure of the end of the blade away from the hub and facilitate production; and the first light source is built into the hub, which can prevent the first light source from being directly struck by lightning and protect the first light source; through the first optical fiber, the light emitted by the first light source is transmitted to the corresponding first display unit, so that the flashing frequency of the light emitted by the first display unit is consistent, and the outline and movement trajectory of the three blades can be displayed, informing aircraft and flying birds that there is equipment here. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0007] Figure 2 yes Figure 1 A partial enlarged schematic diagram of the M in the middle;

[0008] Figure 3 It is a structural schematic diagram of the present invention;

[0009] Figure 4 yes Figure 3 A local enlarged schematic diagram of position N in the middle;

[0010] Figure 5 yes Figure 3 A local enlarged schematic diagram of point P in the middle;

[0011] Figure 6 It is a schematic structural diagram of the nacelle, the hub, the first light source, the second light source and the second display unit in the present invention;

[0012] Figure 7 It is a schematic structural diagram of the first display unit and the first optical fiber in the present invention;

[0013] Figure 8 It is a structural schematic diagram of the second display unit and the second optical fiber in the present invention. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] Example 1:

[0016] The present invention provides a wind turbine generator set outline device, such as Figures 1 to 5 As shown, it includes a nacelle 1 , a hub 2 , a plurality of blades 3 , a first light source 4 , a plurality of first light assemblies 5 , and at least one second light assembly 6 .

[0017] The nacelle 1 includes a nacelle cover 11 and a power generation mechanism 12 . The power generation mechanism 12 is built into the nacelle cover 11 , and a main shaft of the power generation mechanism 12 passes through the nacelle cover 11 .

[0018] The hub 2 is coaxially connected to the main shaft of the power generation mechanism 12 .

[0019] The blades 3 include a blade body 31 and a light-transmitting portion 32. Each blade body 31 has a through hole along its length. The blade bodies 31 are evenly arranged around the hub 2 along the circumference. The light-transmitting portion 32 is located at one end of the blade body 31 away from the hub 2. The light-transmitting portion 32 has a receiving cavity formed therein and is made of a highly light-transmitting material. Preferably, there are three blades 3.

[0020] The first light source 4 is built into the wheel hub 2 ; the flashing frequency of the first light source 4 complies with the stroboscopic setting of the aviation obstruction light at a frequency of 0.05 seconds.

[0021] The first lighting components 5 are arranged in a one-to-one correspondence with the blades 3. Each first lighting component 5 includes a first display unit 51 and a first optical fiber 52. The first display unit 51 is built into the accommodating cavity of the corresponding light-transmitting portion 32; one end of the first optical fiber 52 penetrates into the hub 2, and one end of the first optical fiber 52 is arranged relative to the first light source 4. One end of the first optical fiber 52 receives the light emitted by the first light source 4, and the other end of the first optical fiber 52 passes through the through hole of the corresponding blade body 31 and penetrates into the accommodating cavity of the light-transmitting portion 32, and the other end of the first optical fiber 52 is arranged relative to the first display unit 51; the other end of the first optical fiber 52 outputs light to the first display unit 51.

[0022] Each second light assembly 6 includes a second display unit 61 and a second optical fiber 62. The second display unit 61 is mounted on the nacelle 11. One end of the second optical fiber 62 coaxially penetrates the hub 2 and is positioned opposite the first light source 4. The other end of the second optical fiber 62 passes through the outer wall of the nacelle 11 and is positioned opposite the second display unit 61. Preferably, there are two second light assemblies 6. Preferably, there are two second light assemblies 6.

[0023] The specific working process of the present invention is as follows: when the wind turbine generator set is working, the blades 3 rotate under the action of wind, and the rotation of the blades 3 drives the hub 2 to rotate, driving the main shaft of the power generation mechanism 12 to rotate, and the power generation mechanism 12 generates electricity; during the rotation of the blades 3, the first light source 4 emits light, and the first optical fiber 52 transmits the light emitted by the first light source 4 to the first display unit 51, and the first display unit 51 receives the light transmitted by the first optical fiber 52 to emit light, and the first display units 51 on the three blades 3 flash synchronously; the first light source 4 emits light, and the second optical fiber 62 transmits the light emitted by the first light source 4 to the second display unit 61, and the second display unit 61 receives the light transmitted by the second optical fiber 62 to emit light, and the second display unit 61 flashes synchronously with the first display unit 51.

[0024] The beneficial effects of the present invention include: arranging the first display unit 51 in the light-transmitting portion 32 can protect the first display unit 51; the first light source 4 is built into the hub 2 and is not directly installed at the end of the blade 3 away from the hub 2, which can reduce the internal structure of the end of the blade 3 away from the hub 2 and facilitate production; and the first light source 4 is built into the hub 2, which can prevent the first light source 4 from being directly struck by lightning and protect the first light source 4; through the three first optical fibers 52, the light emitted by the first light source 4 is transmitted to the corresponding first display unit 51, so that the flashing frequency of the light displayed by the first display unit 51 is consistent, and the outline and movement trajectory of the three blades 3 can be displayed, informing aircraft and birds that there is equipment here; through the two second optical fibers 62, the light emitted by the first light source 4 is transmitted to the first display unit 51, so that the flashing frequency of the light emitted by the first display unit 51 is consistent with that of the first display unit 51, which meets the industry requirements for consistent light flashing frequency; by providing the second display unit 61 and the second optical fiber 62, it is possible to prevent birds or aircraft from colliding with the cabin 1, thereby protecting the cabin 1.

[0025] Example 2:

[0026] The similarities with Example 1 are not elaborated here. The difference from Example 1 is that a through hole is provided in the axial direction of the main shaft of the power generation mechanism 12, and the through hole is coaxially arranged with the main shaft of the power generation mechanism 12. One end of the second optical fiber 62 passes through the through hole of the main shaft of the power generation mechanism 12 and enters the hub 2, and one end of the second optical fiber 62 is arranged relative to the first light source 4, and the other end of the second optical fiber 62 passes through the outer wall of the cabin cover 11, and the other end of the second first light source 4 is arranged relative to the second display unit 61. Preferably, the first light source 4 is an aviation obstruction light; preferably, the first display unit 51 and the second display unit 61 are display screens.

[0027] Example 3:

[0028] The same points as the first embodiment are not described here. The difference from the first embodiment is that Figure 6 As shown, the wind turbine blade 3 outline device further includes a second light source 7 and at least one second lighting assembly 6. The second light source 7 is built into the nacelle cover 11. Each second lighting assembly 6 includes a second display unit 61 and a second optical fiber 62. The second display unit 61 is disposed on the nacelle cover 11. One end of the second optical fiber 62 is disposed opposite the second light source 7. The other end of the second optical fiber 62 passes through the outer wall of the nacelle cover 11 and is disposed opposite the second display unit 61. Preferably, there are two second lighting assemblies 6.

[0029] Example 4:

[0030] The same points as the first embodiment are not described here. The difference from the first embodiment is that Figure 7As shown, the blade 3 includes a blade body 31 and a light-transmitting portion 32. The blade body 31 is uniformly arranged on the hub 2 along the circumferential direction. Each blade body 31 is provided with a through hole along the length direction, and the outer surface of the blade body 31 at one end away from the hub 2 is recessed inward to form a receiving groove, and the receiving groove is connected to the through hole. The light-transmitting portion 32 is provided on the blade body 31 and is arranged relative to the receiving groove; the first display unit 51 includes a first beam splitter 511 and a first reflector 512. The first beam splitter 511 is built into the receiving groove; the first reflector 512 is built into the receiving groove, and the first reflector 512 is formed inside the receiving groove. A conical hole is formed in the first reflector 512. The conical hole of the first reflector 512 passes through the first reflector 512, and the inner wall of the conical hole of the first reflector 512 is a reflective surface. The small-diameter end of the conical hole of the first reflector 512 is arranged opposite the first beam splitter 511, and the large-diameter end of the conical hole of the first reflector 512 is arranged opposite the light-transmitting portion 32. One end of the first optical fiber 52 penetrates into the hub 2 and is arranged opposite the first light source 4. The other end of the first optical fiber 52 passes through the corresponding through-hole of the blade body 31 and penetrates into the receiving groove of the blade body 31. The other end of the first optical fiber 52 is connected to the first beam splitter 511. Preferably, the first beam splitter 511 is built into the small-diameter end of the conical hole of the first reflector 512. The first optical fiber transmits the light emitted by the first light source to the first beam splitter 511 , and the light enters the reflective surface of the first reflector 512 through the first beam splitter 511 . The light is reflected on the reflective surface of the first reflector 512 and finally passes through the light-transmitting portion 32 to form a light-emitting point.

[0031] Embodiment 5:

[0032] The same points as the first embodiment are not described here. The difference from the first embodiment is that Figure 8 As shown, the second display unit 61 includes a support 611, a second beam splitter 612, and a second reflector 613. The support 611 is disposed on the outer wall of the nacelle cover 11. A receiving cavity is formed in the support 611. The second beam splitter 612 and the second reflector 613 are embedded in the receiving cavity of the support 611. The second beam splitter 612 is connected to the other end of the second optical fiber 62. A tapered hole is formed in the second reflector 613. The tapered hole of the second reflector 613 passes through the second reflector 613, and the inner wall of the tapered hole of the second reflector 613 is a reflective surface. The small-diameter end of the tapered hole of the second reflector 613 is disposed opposite to the second beam splitter 612. Preferably, the second beam splitter 612 is embedded in the small-diameter end of the second reflector 613. The second optical fiber 62 transmits the light to the second beam splitter 612 , and the light enters the reflective surface of the second reflector 613 through the second beam splitter 612 . The light is reflected on the reflective surface of the second reflector 613 to form a light-emitting point.

[0033] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A wind turbine blade profile device, characterized in that: The invention comprises a hub, a plurality of blades, a first light source, a plurality of first light assemblies, a nacelle, and at least one second light assembly; the plurality of blades are evenly arranged on the hub along the circumference; the first light source is built into the hub; the first light assemblies are arranged in a one-to-one correspondence with the blades, and each first light assembly includes a first display unit and a first optical fiber. The first display unit is arranged at an end of the blade away from the hub; one end of the first optical fiber receives light emitted by the first light source, and the other end outputs the light to the first display unit. The blade includes a blade body and a light-transmitting portion. The blade body is uniformly arranged on the hub along the circumferential direction. Each of the blade bodies is provided with a through hole along the length direction, and the outer surface of the blade body at one end away from the hub is recessed inward to form a receiving groove. The light-transmitting portion is provided on the blade body and is arranged relative to the receiving groove. The light-transmitting portion is provided at the end of the blade body away from the hub, and a receiving cavity is formed in the light-transmitting portion. The first display unit includes a first beam splitter and a first reflector. The first beam splitter is built into the receiving groove. The first reflector is built into the receiving groove. A tapered hole is formed in the first reflector, the tapered hole of the first reflector passes through the first reflector, and the inner wall of the tapered hole of the first reflector is a reflective surface. The small-diameter end of the tapered hole of the first reflector is arranged opposite to the first beam splitter, and the large-diameter end of the tapered hole of the first reflector is arranged opposite to the light-transmitting portion. One end of the first optical fiber penetrates into the hub and is arranged opposite to the first light source. The other end of the first optical fiber passes through the corresponding through-hole of the blade body and penetrates into the receiving groove of the blade body, and the other end of the first optical fiber is connected to the first beam splitter. The nacelle includes a nacelle cover and a power generation mechanism, wherein the power generation mechanism is built into the nacelle cover, a main shaft of the power generation mechanism passes through the nacelle cover and is coaxially connected to the wheel hub, and a through hole is formed in the axial direction of the main shaft of the power generation mechanism, and the through hole is coaxially arranged with the main shaft of the power generation mechanism; Each second lighting assembly includes a second display unit and a second optical fiber. The second display unit is arranged on the nacelle cover. One end of the second optical fiber passes through the through hole of the main shaft of the power generation mechanism and enters the hub, and one end of the second optical fiber is arranged relative to the first light source. The other end of the second optical fiber passes through the outer wall of the nacelle cover, and the other end of the second optical fiber is arranged relative to the second display unit.

2. The wind turbine blade profile device according to claim 1, characterized in that: The number of the second lighting components is two.

3. The wind turbine blade outline indicator device according to claim 1, wherein the second display unit includes a second beam splitter and a second reflector, the second beam splitter is connected to the other end of the second optical fiber, a tapered hole is formed in the second reflector, a tapered hole is formed in the second reflector, the tapered hole of the second reflector passes through the second reflector, and the inner wall of the tapered hole of the second reflector is a reflective surface, and the small diameter end of the tapered hole of the second reflector is arranged relative to the second beam splitter.

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