CN218633811U - Solar tracking device - Google Patents
Solar tracking device Download PDFInfo
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- CN218633811U CN218633811U CN202222706537.2U CN202222706537U CN218633811U CN 218633811 U CN218633811 U CN 218633811U CN 202222706537 U CN202222706537 U CN 202222706537U CN 218633811 U CN218633811 U CN 218633811U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to a solar energy tracer, it can be when improving the generating efficiency, reduce device cost and pursuit the consumption. The solar tracking apparatus includes a bracket assembly, a shaft assembly having a first axis of rotation and a second axis of rotation, a photovoltaic power generation assembly, a putter assembly, and a solar monitoring assembly. The photovoltaic power generation assembly is installed on the support assembly through the rotating shaft assembly. The push rod component comprises a first push rod motor and a second push rod motor which are respectively arranged between the photovoltaic power generation component and the support component, and the first push rod motor is used for driving the photovoltaic power generation component to rotate around the first rotation axis; the second push rod motor is used for driving the photovoltaic power generation assembly to rotate around the second rotation axis. The solar monitoring assembly is arranged on the photovoltaic power generation assembly and used for monitoring the position of the sun and controlling the push rod assembly to actuate so as to drive the photovoltaic power generation assembly to rotate along with the sun.
Description
Technical Field
The utility model relates to a technical field is tracked to solar energy, especially relates to a solar energy tracer.
Background
Today, with increasingly scarce energy sources, solar energy is used as one of the main energy sources in the future by people due to the characteristics of cleanliness and economy. At present, although there are various ways of using solar energy, the application of generating electricity using solar energy is the most widespread. In the process of generating power by using solar energy, people gradually realize that the position of the sun is tracked in time, and the power generation efficiency can be improved to a great extent, so that an appropriate light capture system is particularly important.
At present, most of domestic photovoltaic designs adopt a fixed capture system, and the sunlight cannot be guaranteed to be vertically irradiated all the time, so that the light energy utilization efficiency is low. In fact, studies have shown that the stationary light capture system is about 33% lower than the tracking light capture system, and this is today considered to be highly efficient, and the attention of the tracking light capture system is increasing. The existing tracking type light capture system is generally divided into a single-shaft mode and a double-shaft mode, and the tracking accuracy of the single-shaft solar tracking system is not high, while the double-shaft solar tracking system is provided with a vertical direction shaft for tracking the azimuth angle of the sun and a horizontal direction shaft for tracking the altitude angle of the sun at the same time, so that the generating efficiency of the single-shaft solar tracking system is far lower than that of the double-shaft solar tracking system.
However, the conventional dual-axis solar tracking system generally adopts a rotating platform to realize angle adjustment, but the dual-axis solar tracking system formed by the rotating platform has a complicated structure, and the rotating platform has a complicated structure, so that the manufacturing and using costs of the conventional dual-axis solar tracking system are high.
SUMMERY OF THE UTILITY MODEL
An advantage of the present invention is to provide a solar tracking apparatus, which can reduce the apparatus cost and track the power consumption while improving the power generation efficiency.
Another advantage of the present invention is to provide a solar tracking apparatus, wherein in an embodiment of the present invention, the solar tracking apparatus can utilize two push rod motors to realize tracking adjustment, so that when simplifying solar tracking control, the required azimuth and elevation angle (pitch angle) of accurate control helps to improve the power generation efficiency.
Another advantage of the present invention is to provide a solar tracking apparatus, wherein, in an embodiment of the present invention, the solar tracking apparatus can fix a rotation axis by using a split pin, and has a simple structure and convenient assembly.
Another advantage of the present invention is to provide a solar tracking apparatus, wherein, in an embodiment of the present invention, the solar tracking apparatus can utilize the screw transmission characteristic of the push rod motor, realize the low power consumption operation, help reducing the power consumption that solar energy was tracked.
Another advantage of the present invention is to provide a solar tracking apparatus, wherein in order to achieve the above objects, expensive materials or complex structures are not required to be used in the present invention. Therefore, the utility model discloses succeed in and provide a solution effectively, not only provide a simple solar tracking device, still increased simultaneously solar tracking device's practicality and reliability.
In order to realize the utility model discloses an above-mentioned at least advantage or other advantages and purpose, the utility model provides a solar tracking device, include:
a bracket assembly;
a spindle assembly having a first axis of rotation and a second axis of rotation perpendicular to each other;
a photovoltaic power generation assembly rotatably mounted to the bracket assembly by the pivot assembly;
a push rod assembly including a first push rod motor and a second push rod motor, the first push rod motor being disposed between the photovoltaic power generation assembly and the support assembly for driving the photovoltaic power generation assembly to rotate about the first rotation axis relative to the support assembly; the second push rod motor is arranged between the photovoltaic power generation assembly and the bracket assembly and used for driving the photovoltaic power generation assembly to rotate around the second rotation axis relative to the bracket assembly; and
the solar monitoring assembly is arranged on the photovoltaic power generation assembly and is connected to the push rod assembly in a communication mode, the solar monitoring assembly is used for monitoring the position of the sun and controlling the push rod assembly to actuate to drive the photovoltaic power generation assembly to rotate along with the sun.
According to one embodiment of the application, when the light receiving surface of the photovoltaic power generation assembly is in a horizontal state, the first driving axis of the first push rod motor is perpendicular to the first rotation axis, and the second driving axis of the second push rod motor is perpendicular to the second rotation axis.
According to an embodiment of the application, when the light receiving surface of the photovoltaic power generation assembly is in a horizontal state, the first driving axis is located in a vertical plane where the second rotation axis is located, and the second driving axis is located in a vertical plane where the first rotation axis is located.
According to an embodiment of the present application, the shaft assembly includes a first shaft member providing the first rotation axis, a second shaft member providing the second rotation axis, and a support member disposed between the first shaft member and the second shaft member, the first shaft member being rotatably connected to the photovoltaic power generation assembly, the second shaft member being rotatably connected to the bracket assembly.
According to an embodiment of the application, support piece includes the pivot support frame and is set firmly in the pivot support column of pivot support frame, the pivot support frame pass through second pivot spare rotationally connect in the bracket component, the pivot support column passes through first pivot spare rotationally connect in the photovoltaic power generation subassembly.
According to one embodiment of the application, the first rotating shaft part comprises a left rotating shaft, a right rotating shaft, a left bearing and a right bearing, the left rotating shaft and the right rotating shaft are coaxially and fixedly arranged on the left side and the right side of the rotating shaft supporting column, the inner ring of the left bearing is sleeved on the left rotating shaft, and the outer ring of the left bearing is fixedly connected to the photovoltaic power generation assembly; the inner ring of the right bearing is sleeved on the right rotating shaft, and the outer ring of the right bearing is fixedly connected to the photovoltaic power generation assembly.
According to an embodiment of the present application, the second pivot member includes a pin shaft, the pin shaft rotatably penetrates the bracket assembly and the pivot support frame.
According to one embodiment of the application, the rotary shaft assembly is a cross cardan shaft providing the first and second rotation axes crossing each other.
According to an embodiment of the present application, the second push rod motor of the push rod assembly includes a first fixing member fixed to the bracket assembly, a second fixing member fixed to the photovoltaic power generation assembly, and a push rod motor main body hinged between the first fixing member and the second fixing member; the lead screw of the push rod motor main body is pivoted to the first fixing piece, and the motor of the push rod motor main body is pivoted to the second fixing piece.
According to an embodiment of the present application, the second push rod motor further includes a first pivot mechanism and a second pivot mechanism, the first pivot mechanism being rotatably connected to the first fixing member and the lead screw of the push rod motor main body, respectively; the second pivot mechanism is respectively connected with the second fixing piece and the motor of the push rod motor main body in a rotatable mode.
According to an embodiment of the present application, the photovoltaic power generation assembly includes a support bracket connected to the rotation shaft assembly, a frame fixedly installed on the support bracket, and a solar panel installed on the frame.
According to an embodiment of the application, the solar monitoring assembly comprises an outer cover installed on the bearing bracket, an optical window arranged on the outer cover, a sensing and controlling assembly arranged in the outer cover and corresponding to the optical window, and a light blocking element located between the optical window and the sensing and controlling assembly, wherein the sensing and controlling assembly is used for judging the position of the sun and controlling the rotating shaft assembly to drive the photovoltaic power generation assembly to rotate along with the sun according to the position of the sun.
According to an embodiment of the application, the sensing and control assembly comprises a geomagnetic sensor and a photoelectric sensor which are arranged in the outer cover at intervals, and an optical channel of the photoelectric sensor protrudes out of the outer cover.
According to an embodiment of the application, the sensing and control assembly further comprises a control box arranged on the bracket assembly, and the control box is connected with the geomagnetic sensor and the photoelectric sensor through built-in cables.
Drawings
FIG. 1 is a perspective schematic view of a solar tracking apparatus according to one embodiment of the present application;
FIG. 2 shows an exploded schematic view of a solar tracking apparatus according to the above-described embodiments of the present application;
FIG. 3 shows a cross-sectional schematic view of a solar tracking apparatus according to the above-described embodiments of the present application taken along a vertical plane in which the first axis of rotation lies;
FIG. 4 shows a cross-sectional schematic view of the solar tracking apparatus according to the above-described embodiment of the present application taken along a vertical plane in which the second axis of rotation is located;
FIG. 5 shows a schematic rear view of a solar tracking apparatus according to the above embodiment of the present application after being rotated;
FIG. 6 shows a schematic side view of a solar tracking apparatus according to the above embodiments of the present application after being rotated;
FIG. 7 is an enlarged schematic view of a second pusher motor in the solar tracking apparatus according to the above-described embodiment of the present application;
fig. 8 is a perspective view illustrating a push rod motor main body in the second push rod motor according to the above-described embodiment of the present application;
fig. 9 shows a modified example of the solar tracking apparatus according to the above-described embodiment of the present application.
Description of the main element symbols: 1. a solar tracking device; 10. a bracket assembly; 11. a stent body; 12. a support arm; 20. a photovoltaic power generation assembly; 21. a support bracket; 22. a frame; 23. a solar panel; 30. a rotating shaft assembly; 301. a first axis of rotation; 302. a second axis of rotation; 31. a first rotating shaft member; 311. a left rotating shaft; 312. a right rotating shaft; 313. a left bearing; 314. a right bearing; 32. a second shaft member; 321. a pin shaft; 322. a cotter pin; 33. a support member; 331. a rotating shaft support frame; 332. a rotating shaft supporting column; 40. a push rod assembly; 41. a first push rod motor; 410. a first drive axis; 42. a second push rod motor; 420. a second drive axis; 421. a first fixing member; 422. a second fixing member; 423. a push rod motor main body; 4231. a screw rod; 4232. a motor; 424. a first pivot mechanism; 425. a second pivot mechanism; 50. a solar monitoring assembly; 51. a housing; 52. a light window; 53. a sense control component; 531. a geomagnetic sensor; 532. a photosensor; 5320. an optical channel; 533. a control box; 54. a light blocking member; 55. a detection component; 551. an optical coupling baffle plate; 552. opto-coupler PCB.
The present application will be described in further detail with reference to the drawings and the detailed description.
Detailed Description
The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.
In the present application, the terms "a" and "an" in the claims and the description should be understood as meaning "one or more", that is, one element or a plurality of elements may be included in one embodiment or a plurality of elements may be included in another embodiment. The terms "a" and "an" should not be construed as limiting the number unless such an element is explicitly recited in the disclosure as only one and no limitation to the number is intended.
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be understood broadly, and for example, the connection may be fixed, detachable or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Considering that the existing double-shaft solar tracking system usually adopts a rotating platform to realize angle adjustment, but the double-shaft solar tracking system formed by the rotating platform has a complex structure, and in order to achieve higher torque, the transmission ratio of a gear train needs to be increased, the volume and the cost of the gear train are increased, the power loss is increased, and the power generation efficiency of a solar panel is seriously influenced. In order to solve the above problems, the present application provides a solar tracking apparatus capable of reducing an apparatus cost and tracking power consumption while improving power generation efficiency.
Specifically, referring to fig. 1 to 9 of the drawings accompanying the present application, a solar tracking apparatus 1 according to an embodiment of the present application is provided, which may include a stand assembly 10, a photovoltaic power generation assembly 20, a rotating shaft assembly 30, a push rod assembly 40, and a sun monitoring assembly 50. The rotary shaft assembly 30 has a first rotation axis 301 and a second rotation axis 302, and the photovoltaic power generation assembly 20 is mounted to the rack assembly 10 through the rotary shaft assembly 30. The push rod assembly 40 includes a first push rod motor 41 and a second push rod motor 42, the first push rod motor 41 is disposed between the photovoltaic power generation assembly 20 and the rack assembly 10, and is used for driving the photovoltaic power generation assembly 20 to rotate around the first rotation axis 301 relative to the rack assembly 10; the second pusher motor 42 is disposed between the photovoltaic module 20 and the rack assembly 10 for driving the photovoltaic module 20 to rotate around the second rotation axis 302 relative to the rack assembly 10. The sun monitoring assembly 50 is disposed on the photovoltaic power generation assembly 20 and is communicatively connected to the putter assembly 40 for monitoring the position of the sun and controlling the movement of the putter assembly 40 to drive the photovoltaic power generation assembly 20 to rotate along with the sun.
Optionally, the first rotation axis 301 and the second rotation axis 302 in the rotation shaft assembly 30 are perpendicular to each other.
It is worth noting that, because the push rod motor has a large thrust and has a self-locking characteristic, the two push rod motors are adopted in the present application to drive the photovoltaic power generation assembly 20 to rotate around the first rotation axis 301 and the second rotation axis 302 respectively relative to the support assembly 10, and the adjustment of the azimuth angle and the pitch angle of the photovoltaic power generation assembly with a large weight can be accurately controlled by using a small power consumption without increasing the power consumption as in the existing rotating platform, so that the photovoltaic power generation assembly 20 tracks the sun efficiently, and the photovoltaic power generation efficiency is improved. Meanwhile, the self-locking characteristic of the push rod motor is fully exhibited in the solar tracking apparatus 1 of the present application, that is, when the push rod assembly 40 is controlled to drive the photovoltaic power generation assembly 20 to rotate to the angle of the sunlight vertical incidence, the first push rod motor 41 and the second push rod motor 42 can be self-locked to limit the position of the photovoltaic power generation assembly 20, thereby effectively preventing the photovoltaic power generation assembly 20 from deflecting due to the influence of external factors such as wind blowing, and ensuring higher photovoltaic power generation efficiency.
More specifically, as shown in fig. 3 to 6, taking the first rotation axis 301 extending in the north-south direction and the second rotation axis 302 extending in the east-west direction as an example, when the photovoltaic power generation assembly 20 is driven to rotate around the first rotation axis 301, the azimuth angle of the photovoltaic power generation assembly 20 is adjusted to follow the rotation of the sun from west to east; meanwhile, when the photovoltaic power generation module 20 is driven to rotate about the second rotation axis 302, the pitch angle of the photovoltaic power generation module 20 is adjusted to follow the altitude of the sun. Thus, when the photovoltaic power generation assembly 20 is driven to rotate from east to west along with the sun, the pitch angle of the photovoltaic power generation assembly 20 can be adjusted according to the height of the sun, so that the sunlight can be always vertically incident on the light receiving surface of the photovoltaic power generation assembly 20, and the photovoltaic power generation efficiency is improved to the maximum extent.
Alternatively, as shown in fig. 3 and 4, when the light receiving surface of the photovoltaic power generation assembly 20 is in a horizontal state, the first driving axis 410 of the first push rod motor 41 may be perpendicular to the first rotation axis 301, and the second driving axis 420 of the second push rod motor 42 may be perpendicular to the second rotation axis 302, which helps to simplify the coordination adjustment between the azimuth angle and the pitch angle and reduce the difficulty of the cooperative control of the push rod motors.
Optionally, as shown in fig. 3 and 4, when the light receiving surface of the photovoltaic power generation assembly 20 is in a horizontal state, the first driving axis 410 of the first push rod motor 41 is located in a vertical plane of the second rotation axis 302, and the second driving axis 420 of the second push rod motor 42 is located in a vertical plane of the first rotation axis 301, so as to further reduce the difficulty of cooperative control of the push rod motors.
For example, as shown in fig. 1 and 2, the rotating shaft assembly 30 may include a first rotating shaft member 31 providing the first rotating axis 301, a second rotating shaft member 32 providing the second rotating axis 302, and a support member 33 disposed between the first rotating shaft member 31 and the second rotating shaft member 32, wherein the first rotating shaft member 31 is rotatably connected to the photovoltaic module 20, and the second rotating shaft member 32 is rotatably connected to the rack assembly 10. Thus, the first axis of rotation 301 and the second axis of rotation 302 are embodied as non-coplanar axes; at this time, when the photovoltaic power generation assembly 20 is driven by the first push rod motor 41 to rotate around the first rotation axis 301 to adjust the azimuth angle, the second push rod motor 42 in the push rod assembly 40 also needs to extend and rotate to compensate the distance error and the angle error caused around the first rotation axis 301, respectively; similarly, as shown in fig. 5 and 6, when the photovoltaic power generation assembly 20 is driven by the second push rod motor 42 to rotate around the second rotation axis 302 to adjust the pitch angle, the first push rod motor 41 in the push rod assembly 40 also needs to be extended and rotated to compensate for the distance error and the angle error caused around the second rotation axis 302. In other words, the first push rod motor 41 and the second push rod motor 42 need to be capable of rotating around the respective driving axes in addition to being capable of extending and retracting along the respective driving axes, so as to compensate for the distance error and the angle error caused by the rotation of the photovoltaic power generation assembly 20.
It is noted that in other examples of the present application, the rotary shaft assembly 30 may also be implemented as a cross cardan shaft to provide the first rotation axis 301 and the second rotation axis 302 that intersect each other. Thus, the first axis of rotation 301 and the second axis of rotation 302 are embodied as coplanar axes; at this time, the telescopic action of the first push rod motor 41 is only used for adjusting the azimuth angle of the photovoltaic power generation assembly 20, the telescopic action of the second push rod motor 42 is only used for adjusting the pitch angle of the photovoltaic power generation assembly 20, that is, the first push rod motor 41 does not drive the photovoltaic power generation assembly 20 to adjust the pitch angle, and the second push rod motor 42 does not drive the photovoltaic power generation assembly 20 to adjust the azimuth angle, so as to effectively avoid the mutual interference between the first push rod motor 41 and the second push rod motor 42, and reduce the difficulty of cooperative control of the push rod motors to the utmost extent.
Alternatively, as shown in fig. 1 and fig. 2, the supporting member 33 of the rotating shaft assembly 30 may include a rotating shaft supporting frame 331 and a rotating shaft supporting post 332 fixedly disposed on the rotating shaft supporting frame 331, the rotating shaft supporting frame 331 is rotatably connected to the rack assembly 10 through the second rotating shaft member 32, and the rotating shaft supporting post 332 is rotatably connected to the photovoltaic power generation assembly 20 through the first rotating shaft member 31. It can be understood that the shaft support column 332 of the support member 33 of the present application extends in a direction parallel to the first rotation axis 301, and the shaft support frame 331 extends in a direction perpendicular to the first rotation axis 301.
Alternatively, as shown in fig. 2, the first rotating shaft 31 may include a left rotating shaft 311, a right rotating shaft 312, a left bearing 313 and a right bearing 314, the left rotating shaft 311 and the right rotating shaft 312 are coaxially fixed at the left and right ends of the rotating shaft supporting column 332, the inner ring of the left bearing 313 is sleeved on the left rotating shaft 311, and the outer ring of the left bearing 313 is fixed to the photovoltaic power generation assembly 20; the inner ring of the right bearing 314 is sleeved on the right rotating shaft 312, and the outer ring of the right bearing 314 is fixedly connected to the photovoltaic power generation assembly 20. Thus, the first rotating shaft member 31 effectively reduces the rotational friction while rotatably mounting the photovoltaic power generation module 20 to the support member 33 of the rotating shaft assembly 30, so as to reduce the rotational power consumption. It can be understood that, in order to ensure that the first rotating shaft member 31 rotates for a long time without damage, the first rotating shaft member 31 of the present application may further include left and right oil seals, left and right seal rings, left and right bearing pressure plates, left and right end covers, and the details of the present application are omitted.
Alternatively, as shown in fig. 2, the second rotating shaft element 32 may include a pin 321, and the pin 321 rotatably penetrates through the bracket assembly 10 and the rotating shaft support frame 331 of the support element 33, so as to rotatably mount the rotating shaft support frame 331 to the bracket assembly 10, so that the photovoltaic power generation assembly 20 can rotate around the pin 321 to change its pitch angle.
Optionally, as shown in fig. 2, the second rotating shaft 32 may further include a pair of split pins 322, the split pins 322 are inserted into the through holes at two ends of the pin 321 for limiting the pin 321, and preventing the pin 321 from falling off from the bracket assembly 10 and the supporting member 33, so as to simplify the assembly and ensure the safe and stable operation of the device.
According to the above-mentioned embodiment of the present application, as shown in fig. 2 and 4, the bracket assembly 10 may include a bracket main body 11 and a pair of supporting arms 12 extending upward from the bracket main body 11, the spindle supporting frame 331 of the supporting member 33 of the spindle assembly 30 is rotatably disposed between the supporting arms 12, and the pin 321 of the second spindle member 32 rotatably penetrates through the supporting arms 12 and the spindle supporting frame 331, so as to achieve a reliable rotational connection between the spindle assembly 30 and the bracket assembly 10. It can be understood that the supporting arm 12 of the frame body 11 and the supporting shaft 331 of the supporting member 33 are both provided with a transverse through hole for the pin 321 to pass through so as to rotatably mount the supporting member 33 on the frame body 11. Of course, in other examples of the present application, the rotating shaft assembly 30 may also be rotatably connected to the bracket assembly 10 by other manners, which will not be described in detail herein.
As shown in fig. 1 and 2, the photovoltaic power generation assembly 20 of the present application may include a support bracket 21 connected to the rotation shaft assembly 30, a frame 22 fixed to the support bracket 21, and a solar panel 23 mounted to the frame 22, wherein the solar panel 23 performs photovoltaic power generation under the condition of sunlight.
Optionally, as shown in fig. 1 and fig. 2, the photovoltaic module 20 includes a pair of solar panels 23, and the two solar panels 23 are symmetrically located at the left and right sides of the support bracket 21, so that the support bracket 21 is located at the center of the photovoltaic module 20, which facilitates reducing the rotation torque of the photovoltaic module 20.
Alternatively, as shown in fig. 2 and 3, the solar monitoring assembly 50 may include an outer cover 51 mounted on the support bracket 21, an optical window 52 disposed on the outer cover 51, a sensing and controlling assembly 53 disposed in the outer cover 51 and corresponding to the optical window 52, and a light blocking element 54 located between the optical window 52 and the sensing and controlling assembly 53; the sensing and controlling assembly 53 is used for determining the position of the sun, and controlling the rotating shaft assembly 30 to drive the photovoltaic power generation assembly 20 to rotate along with the sun according to the position of the sun.
Optionally, the sensing and controlling assembly 53 may include a geomagnetic sensor 531, and the geomagnetic sensor 531 is configured to determine a sun position angle at the current local time by using an astronomy algorithm, so as to control the rotating shaft assembly 30 to drive the photovoltaic power generation assembly 20 to rotate along with the sun. Alternatively, the light window 52 may be, but is not limited to being, implemented as transparent glass; the light barrier 54 may be, but is not limited to being, implemented as a light barrier ring.
Optionally, as shown in fig. 2, the solar monitoring assembly 50 may further include a detecting assembly 55 disposed on the first rotating shaft 31 for finding the zero position of the photovoltaic power generation assembly 20. For example, the detecting assembly 55 may include an optical coupler segment 551 and an optical coupler PCB552, and the optical coupler segment 551 and the optical coupler PCB552 are sequentially assembled to the first rotating shaft 31; of course, in other examples of the present application, the detecting component 55 may also be disposed at other positions or have other structures as long as it can search for the zero position, and the description of the present application is omitted here.
It should be noted that the first push rod motor 41 and the second push rod motor 42 in the push rod assembly 40 of the present application can be, but are not limited to be, implemented as identical push rod motors, and in the following, for the sake of simplifying the description, only the second push rod motor 42 is taken as an example to clarify the structure and installation features of the push rod motors.
Specifically, as shown in fig. 2 and 7, the second push rod motor 42 may include a first fixing member 421 fixed to the bracket assembly 10, a second fixing member 422 fixed to the photovoltaic power generation assembly 20, and a push rod motor main body 423 hinged between the first fixing member 421 and the second fixing member 422.
More specifically, as shown in fig. 7 and 8, the push rod motor body 423 may be composed of a lead screw 4231 and a motor 4232. The lead screw 4231 of the push rod motor main body 423 can be pivoted to the first fixing member 421; the motor 4232 of the push rod motor body 423 can be pivotally connected to the second fixing member 422. Thus, when the motor 4232 drives the lead screw 4231 to extend and retract along the second driving axis 420, the push rod motor body 423 will drive the photovoltaic power generation assembly 20 to rotate around the second rotation axis 302; meanwhile, the lead screw 4231 of the push rod motor main body 423 rotates relative to the first fixing member 421, and the motor 4232 of the push rod motor main body 423 rotates relative to the second fixing member 422, so as to compensate for the angle change caused by the rotation of the photovoltaic power generation assembly 20. It can be understood that, this solar tracking apparatus 1 of this application can utilize the lead screw transmission characteristic of push rod motor, realizes the low-power consumption motion, helps reducing the running cost of device.
For example, as shown in fig. 7 and 8, the second push rod motor 42 may further include a first pivot mechanism 424 and a second pivot mechanism 425, the first pivot mechanism 424 being rotatably connected to the first fixing member 421 and the lead screw 4231, respectively, to pivot the lead screw 4231 to the first fixing member 421; the second pivot mechanism 425 is rotatably connected to the second fixing element 422 and the motor 4232, respectively, so as to pivotally connect the motor 4232 to the second fixing element 422.
Optionally, the first pivot mechanism 424 includes a pair of pivots perpendicularly connected to each other, one pivot of the first pivot mechanism 424 rotatably penetrates through the first fixing member 421, and the other pivot of the first pivot mechanism 424 rotatably penetrates through the lead screw 4231, so as to pivot the lead screw 4231 to the first fixing member 421. It is understood that the first pivot mechanism 424 may have through holes at two ends of the pivot for the cotter pin to pass through for limiting and fixing, and has simple structure and easy installation. In addition, the second pivot mechanism 425 is similar to the first pivot mechanism 424, and is not described herein.
In summary, the two-axis motion of the solar tracking apparatus 1 mainly includes: the photovoltaic power generation module 20 rotates around the first rotating shaft member 31 relative to the support assembly 10 to adjust the azimuth angle of the photovoltaic power generation module 20; the photovoltaic module 20 rotates around the second rotating shaft 32 relative to the bracket assembly 10 to adjust the pitch angle of the photovoltaic module 20.
It should be noted that the geomagnetic sensor 531 mentioned in this application mainly determines the azimuth angle of the designed position, and can only determine the approximate position of the sun, but cannot determine the precise position of the sun; in order to control the rotating shaft assembly 30 to drive the photovoltaic power generation assembly 20 to precisely rotate along with the sun, so as to further improve the power generation efficiency, fig. 9 shows a modified example of the solar tracking apparatus 1 according to the above embodiment of the present application. The solar tracking apparatus 1 according to this modified example of the present application is different from the above-described embodiment according to the present application in that: the sensing and controlling assembly 53 may further include a photoelectric sensor 532, and the photoelectric sensor 532 is configured to determine an accurate position of the sun according to the received light energy, and then control the rotating shaft assembly 30 to drive the photovoltaic power generation assembly 20 to precisely rotate along with the sun. In other words, the solar tracking apparatus 1 of the present application can first roughly adjust the azimuth angle and the pitch angle of the photovoltaic power generation assembly 20 through the geomagnetic sensor 531; and then the azimuth angle and the pitch angle of the photovoltaic power generation assembly 20 are finely adjusted by the photoelectric sensor 532, so that the photovoltaic power generation assembly 20 can accurately rotate along with the sun, and the power generation efficiency is further improved.
Alternatively, the geomagnetic sensor 531 and the photosensor 532 are arranged at intervals in the outer cover 51, and the optical channel 5320 of the photosensor 532 protrudes from the outer cover 51. Thus, when the light tunnel 5320 of the photosensor 532 is facing the sun, the energy of the sunlight received by the photosensor 532 is the largest, and when the sun moves, the energy of the sunlight received by the photosensor 532 is rapidly reduced, so that the position of the sun can be accurately determined.
Optionally, the sensing and controlling assembly 53 in the solar monitoring assembly 50 may further include a control box 533 disposed on the rack assembly 10, the control box 533 is connected to the geomagnetic sensor 531 and the photoelectric sensor 532 through a cable (not shown in the figure), and is configured to control the rotation shaft assembly 30 to drive the photovoltaic power generation assembly 20 to rotate along with the sun according to the sun position determined by the geomagnetic sensor 531 and the photoelectric sensor 532.
Alternatively, the control box 533 is disposed on the bracket body 11 of the bracket assembly 10, and the cable sequentially penetrates through the support bracket 21, the rotating shaft assembly 30 and the bracket body 11 to serve as a built-in cable, and is electrically connected to the geomagnetic sensor 531 and the photoelectric sensor 532, so that the cable is prevented from being exposed to the outside to influence the photovoltaic power generation assembly 20 to rotate along with the sun, and the cable can be protected.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. Solar tracking apparatus, comprising:
a bracket assembly;
a spindle assembly having a first axis of rotation and a second axis of rotation;
a photovoltaic power generation assembly mounted to the bracket assembly by the pivot assembly;
the first push rod motor is arranged between the photovoltaic power generation assembly and the support assembly and used for driving the photovoltaic power generation assembly to rotate around the first rotation axis relative to the support assembly; the second push rod motor is arranged between the photovoltaic power generation assembly and the bracket assembly and used for driving the photovoltaic power generation assembly to rotate around the second rotation axis relative to the bracket assembly; and
the solar monitoring assembly is arranged on the photovoltaic power generation assembly and is connected to the push rod assembly in a communication mode, the solar monitoring assembly is used for monitoring the position of the sun and controlling the push rod assembly to actuate to drive the photovoltaic power generation assembly to rotate along with the sun.
2. The solar tracking apparatus of claim 1, wherein when the light receiving surface of the photovoltaic power generation assembly is horizontal, the first drive axis of the first push rod motor is perpendicular to the first rotation axis, and the second drive axis of the second push rod motor is perpendicular to the second rotation axis.
3. The solar tracking apparatus of claim 2, wherein the first drive axis lies in a vertical plane in which the second axis of rotation lies and the second drive axis lies in a vertical plane in which the first axis of rotation lies when the receiving surface of the photovoltaic power generation assembly is horizontal.
4. The solar tracking apparatus of any one of claims 1 to 3, wherein the pivot assembly includes a first pivot member providing the first axis of rotation, a second pivot member providing the second axis of rotation, and a support member disposed between the first and second pivot members, the first pivot member being rotatably connected to the photovoltaic power generation assembly, the second pivot member being rotatably connected to the cradle assembly.
5. The solar tracking apparatus as defined in claim 4, wherein the support member comprises a shaft support frame and a shaft support post fixedly secured to the shaft support frame, the shaft support frame being rotatably connected to the bracket assembly via the second shaft member, the shaft support post being rotatably connected to the photovoltaic power generation assembly via the first shaft member; the first rotating shaft part comprises a left rotating shaft, a right rotating shaft, a left bearing and a right bearing, the left rotating shaft and the right rotating shaft are coaxially and fixedly arranged on the left side and the right side of the rotating shaft supporting column, the inner ring of the left bearing is sleeved on the left rotating shaft, and the outer ring of the left bearing is fixedly connected to the photovoltaic power generation assembly; the inner ring of the right bearing is sleeved on the right rotating shaft, and the outer ring of the right bearing is fixedly connected to the photovoltaic power generation assembly.
6. The solar tracking apparatus as defined in any one of claims 1 to 3, wherein the second putter motor of the putter assembly comprises a first fixing member fixed to the stand assembly, a second fixing member fixed to the photovoltaic power generation assembly, and a putter motor body hinged between the first fixing member and the second fixing member; the lead screw of the push rod motor body is pivoted to the first fixing piece, and the motor of the push rod motor body is pivoted to the second fixing piece.
7. The solar tracking apparatus as defined in claim 6, wherein the second pusher motor further comprises a first pivot mechanism and a second pivot mechanism, the first pivot mechanism being rotatably connected to the first mount and the lead screw of the pusher motor body, respectively; the second pivot mechanism is respectively connected with the second fixing piece and the motor of the push rod motor main body in a rotatable mode.
8. The solar tracking apparatus as defined in any one of claims 1 to 3, wherein the photovoltaic power generation assembly comprises a support bracket connected to the rotation shaft assembly, a frame fixedly attached to the support bracket, and a solar panel mounted to the frame; the solar monitoring assembly comprises an outer cover arranged on the support bracket, an optical window arranged on the outer cover, a sensing and controlling assembly arranged in the outer cover and corresponding to the optical window, and a light blocking element positioned between the optical window and the sensing and controlling assembly, wherein the sensing and controlling assembly is used for judging the position of the sun and controlling the rotating shaft assembly to drive the photovoltaic power generation assembly to rotate along with the sun according to the position of the sun.
9. The solar tracking apparatus of claim 8, wherein the sensory control assembly comprises a geomagnetic sensor and a photoelectric sensor arranged at intervals in the housing, and a light channel of the photoelectric sensor protrudes from the housing.
10. The solar tracking apparatus as defined in claim 9, wherein the sensory control assembly further comprises a control box disposed on the bracket assembly, the control box connecting the geomagnetic sensor and the photoelectric sensor via a built-in cable.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116545361A (en) * | 2023-04-12 | 2023-08-04 | 浙江川达新能源股份有限公司 | Photovoltaic support is tracked to biax |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116545361A (en) * | 2023-04-12 | 2023-08-04 | 浙江川达新能源股份有限公司 | Photovoltaic support is tracked to biax |
CN116545361B (en) * | 2023-04-12 | 2024-02-27 | 浙江川达新能源股份有限公司 | Photovoltaic support is tracked to biax |
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