Double-shaft tracking photovoltaic support

Abstract

The utility model discloses a double-shaft tracking photovoltaic support comprising a column assembly comprising a first rod member and a second rod member capable of sliding relative to the first rod member; the driving assembly is used for driving the second rod piece to ascend and descend relative to the first rod piece; the driving assembly comprises a winding wheel, an inhaul cable and at least one fixed pulley connected to the first rod piece, the winding wheel is rotationally connected to the first rod piece, one end of the inhaul cable is wound around the winding wheel, and the other end of the inhaul cable is connected with the lower end of the second rod piece after bypassing the fixed pulley; and the rotating bracket is provided with a solar panel, and the rotating bracket is arranged on the second rod piece. The double-shaft tracking photovoltaic support is easy, convenient and safe to install and operate, convenient to overhaul and capable of being prevented from being damaged in typhoon days.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic brackets, and in particular to a dual-axis tracking photovoltaic bracket. Background Art

[0002] Especially in recent years, with the increasing number of electric vehicles in my country, the batteries of electric vehicles need to be charged frequently, and the power consumption is large. Therefore, providing charging facilities for electric vehicle batteries in carports or parking spaces has become a problem that electric vehicle families must consider. Now some carports or parking spaces have been equipped with charging piles for charging electric vehicles as needed. These charging piles are generally powered by municipal power, which consumes a lot of electricity and causes energy waste. Therefore, more and more families choose to use solar photovoltaic power generation and charge electric vehicle batteries. In order to improve the photoelectric conversion rate of solar photovoltaic, most of the current solar photovoltaic brackets are set to track the angle of sunlight. The most common is a dual-axis tracking photovoltaic bracket, that is, the solar panels on the photovoltaic bracket can be driven by the driving mechanism to rotate around two mutually perpendicular axes to adjust the angle, so that the solar panels can rotate with the change of the angle of sunlight, thereby improving the photoelectric conversion rate of solar photovoltaic.

[0003] The structure of the dual-axis tracking photovoltaic bracket in the related technology includes a base installed on the ground, a column connected to the base, a rotating bracket and a driving mechanism for driving the rotating bracket to rotate to adjust the angle are installed on the upper end of the column, and a solar panel assembly is installed on the rotating bracket; the driving mechanism is generally two, one driving mechanism can drive the rotating bracket to rotate around a first axis, and the other driving mechanism can drive the rotating bracket to rotate around a second axis, and the rotation axis of the first axis is perpendicular to the rotation axis of the second axis, such as the photovoltaic bracket in the patent application with publication number CN116795145A. The dual-axis tracking photovoltaic bracket of the related technology has the following defects during actual installation or use: first, during installation, the column is installed first, and then the solar panel and the rotating bracket are assembled into one, and finally the rotating bracket is hoisted to a high altitude by a crane, and the installer installs the rotating bracket on the upper end of the column on the high-altitude platform; therefore, the entire installation process is very troublesome to operate and has certain risks of high-altitude operations; secondly, the height of the column of the photovoltaic bracket is fixed and cannot be adjusted, and the operation is very laborious when the column is installed and erected; and during typhoon days, the solar panels located at high positions are difficult to withstand strong winds, causing the solar panels to fall off, tilt, or be damaged; in addition, when inspecting or replacing solar panels or drive mechanisms, high-altitude operations are required, which is very inconvenient. Utility Model Content

[0004] The technical problem to be solved by the present application is to overcome the defects of the above-mentioned related technologies and provide a dual-axis tracking photovoltaic bracket which is simple, convenient, safe to install and operate, easy to maintain, and can avoid damage during typhoons.

[0005] The technical solution of the present application is to provide a dual-axis tracking photovoltaic bracket having the following structure:

[0006] A column assembly, comprising a first rod and a second rod slidable relative to the first rod;

[0007] A driving assembly, used for driving the second rod to rise and fall relative to the first rod; the driving assembly comprises a winding wheel, a cable and at least one fixed pulley connected to the first rod, the winding wheel is rotatably connected to the first rod, one end of the cable is wound on the winding wheel, and the other end of the cable is connected to the lower end of the second rod after passing through the fixed pulley;

[0008] A rotating bracket is installed with a solar panel, and the rotating bracket is installed on the second rod.

[0009] In some embodiments, a locking mechanism is provided on the column assembly for locking the second rod member on the first rod member.

[0010] In some embodiments, a first positioning hole is provided at the upper end of the first rod, and a second positioning hole corresponding to the first positioning hole is provided at the lower end of the second rod; when the second rod is in an unfolded state relative to the first rod, the second positioning hole coincides with the first positioning hole and is connected by a locking bolt.

[0011] In some embodiments, there are two fixed pulleys: a first fixed pulley and a second fixed pulley, the first fixed pulley and the second fixed pulley are respectively connected to the first rod from top to bottom, and the first fixed pulley is arranged near the upper end of the first rod, and the second fixed pulley is arranged near the winding wheel; the cable passes around the second fixed pulley and the first fixed pulley in sequence from bottom to top and is connected to the lower end of the second rod.

[0012] In some embodiments, the upper portion and the side portion of the first fixed pulley extend out of the upper end surface and the outer side wall surface of the first rod respectively; the inner wall of the lower end of the second rod is connected to a fixing seat for fixing the cable.

[0013] In some embodiments, the winding wheel is connected to a handle which can drive the winding wheel to rotate.

[0014] In some embodiments, the first rod and the second rod are both hollow tubes, and the second rod is slidably mounted on the first rod; a first friction pad is connected to the inner circumferential wall of the second rod, and the first friction pads are slidably fitted with the outer circumferential wall of the first rod; a second friction pad is connected to the outer circumferential wall of the first rod, and the outer circumferential wall of the second friction pad is slidably fitted with the inner circumferential wall of the second rod.

[0015] In some embodiments, the photovoltaic support further includes a base, and the lower end of the first rod is fixedly connected to the base.

[0016] In some embodiments, the rotating bracket includes a first frame body rotatably connected to the upper end of the second rod and a first driving mechanism that drives the first frame body to rotate, the first frame body is connected to a second frame body that rotates relative to the first frame body and a second driving mechanism that drives the second frame body to rotate, and the rotation axis of the first frame body is perpendicular to the rotation axis of the second frame body; wherein, one end of the first driving mechanism is connected to one side of the first frame body, and the other end of the first driving mechanism is connected to the first support rod; one end of the second driving mechanism is connected to one side of the second frame body, and the other end of the second driving mechanism is connected to the first frame body.

[0017] In some embodiments, the first driving mechanism and the second driving mechanism are both electric push rods.

[0018] In summary, compared with the related art, the dual-axis tracking photovoltaic bracket of the present application has the following advantages: the dual-axis tracking photovoltaic bracket arranges the column assembly into two rods, namely a first rod and a second rod that can slide relative to the first rod; and drives the second rod to rise and fall through a driving assembly installed on the first rod, the driving assembly includes a winding wheel, a cable and a fixed pulley, and the second rod is driven to rise and fall by rotating the winding wheel to wind or release the cable; therefore, when installing the photovoltaic bracket, the second rod is lowered to the lowest height, the lower end of the first rod of the column assembly is fixed to the ground, and then a rotating bracket with a solar panel is installed on the upper end of the second rod, and finally the winding wheel is rotated to wind the cable to drive the second rod to rise to the required height. During the entire installation process, the installers are on the ground or at a lower height, so the safety is good, and the installation operation is simple, convenient and labor-saving. When replacing the driving mechanism on the photovoltaic bracket or inspecting the solar panel, the second rod can be lowered to the lowest height for convenient inspection and simple operation. Furthermore, when encountering typhoons or strong winds, the second rod can be lowered to the lowest height to reduce the shaking of the photovoltaic bracket due to wind, thereby avoiding damage to the photovoltaic bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a dual-axis tracking photovoltaic bracket according to some embodiments of the present application.

[0020] Figure 2 This is a schematic diagram of the structure of a dual-axis tracking photovoltaic bracket at another angle according to some embodiments of the present application.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of a dual-axis tracking photovoltaic bracket according to some embodiments of the present application.

[0022] Figure 4 It is a schematic diagram of the structure of a driving assembly of a dual-axis tracking photovoltaic support according to some embodiments of the present application.

[0023] Figure 5 It is a schematic diagram of the partial structure of a first rod of a dual-axis tracking photovoltaic bracket according to some embodiments of the present application.

[0024] Figure 6 It is a schematic structural diagram of a second rod of a dual-axis tracking photovoltaic bracket according to some embodiments of the present application.

[0025] Description of reference numerals:

[0026] 1. Base, 2. Column assembly, 200. First rod, 201. Second rod, 202. First friction pad, 203. Second friction pad, 3. Rotating bracket, 300. First frame, 301. First driving mechanism, 302. Second frame, 303. Second driving mechanism, 304. Controller, 4. Solar panel, 5. Winding wheel, 500. Handle, 501. First fixed pulley, 502. Second fixed pulley, 503. Cable, 504. First positioning hole, 505. Second positioning hole, 506. Locking bolt, 507. Fixed seat. DETAILED DESCRIPTION

[0027] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0028] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0029] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] See also Figure 1 to Figure 6 As shown;

[0032] The present application embodiment discloses a dual-axis tracking photovoltaic bracket, which comprises a base 1, a column assembly 2 and a rotating bracket 3 installed on the top of the column assembly 2, and a solar panel 4 is installed on the rotating bracket 3. In this embodiment, Figure 1 and Figure 2 As shown, the lower end of the column assembly 2 is fixedly connected to the base 1, and the rotating bracket 3 includes a first frame body 300 rotatably connected to the upper end of the column assembly 2 and a first driving mechanism 301 that drives the first frame body 300 to rotate. The first frame body 300 is connected to a second frame body 302 that rotates relative to the first frame body 300 and a second driving mechanism 303 that drives the second frame body 302 to rotate. The rotation axis of the first frame body 300 is perpendicular to the rotation axis of the second frame body 302. Specifically, in this embodiment, the column assembly 2 includes a first rod 200 and a second rod 201 that can slide relative to the first rod 200, the first frame 300 is rotatably connected to the upper end of the second rod 201 through a first rotating shaft, and the second frame 302 is rotatably connected to the first frame 300 through a second rotating shaft; one end of the first driving mechanism 301 is connected to one side of the first frame 300, and the other end of the first driving mechanism 301 is connected to the first support rod; one end of the second driving mechanism 303 is connected to one side of the second frame 302, and the other end of the second driving mechanism 303 is connected to the first frame 300. The first driving mechanism 301 and the second driving mechanism 303 are both linear driving rods, such as electric push rods, linear motors, etc.

[0033] It is not difficult to understand that in this embodiment, the column assembly 2 is also connected to a controller 304 and a light sensor, the light sensor is used to sense the irradiation angle of sunlight, and feed back the irradiation angle signal of sunlight to the controller 304, the controller 304 controls the action of the first drive mechanism 301 and the second drive mechanism 303, so that the solar panel 4 can better greet or aim at the sunlight; thereby, the solar panel 4 on the photovoltaic bracket can track the irradiation angle of sunlight and adaptively adjust the tilt angle.

[0034] In this embodiment, the first frame 300 is rotatably connected to the upper end of the second rod 201 via a first rotation axis, and the second frame 302 is rotatably connected to the first frame 300 via a second rotation axis. Therefore, the first drive mechanism 301 drives the first frame 300 to rotate around the first rotation axis, and the second drive mechanism 303 drives the second frame 302 to rotate around the second rotation axis, so that the solar panel 4 on the second frame 302 can rotate in two different directions to adapt to the change of the sunlight irradiation angle. In this embodiment, the second frame 302 is a beam rotatably connected to the first frame 300, and the beam can rotate around its axis under the drive of the second drive mechanism 303.

[0035] In this embodiment, the first rod 200 and the second rod 201 are both hollow tubes, and the second rod 201 is slidably sleeved on the first rod 200; the inner circumferential wall of the second rod 201 is connected with the first friction pad 202, and the first friction pad 202 is slidably fitted with the outer circumferential wall of the first rod 200; the outer circumferential wall of the first rod 200 is connected with the second friction pad 203, and the outer circumferential wall of the second friction pad 203 is slidably fitted with the inner circumferential wall of the second rod 201. In this way, the second rod 201 is more stable when sliding relative to the first rod 200, and is not prone to lateral shaking; furthermore, the provision of the first friction pad 202 and the second friction pad 203 can effectively prevent the second rod 201 from separating from the first rod 200.

[0036] In this embodiment, if Figure 2 , Figure 3 and Figure 4As shown, a driving assembly is connected to the column assembly 2, and the driving assembly is used to drive the second rod 201 to rise and fall relative to the first rod 200, so that the column assembly 2 has a lifting function. Specifically in this embodiment, the driving assembly includes a winding wheel 5, a cable 503 and at least one fixed pulley connected to the first rod 200, the winding wheel 5 is rotatably connected to the first rod 200, one end of the cable 503 is wound on the winding wheel 5, and the other end of the cable 503 is connected to the lower end of the second rod 201 after passing the fixed pulley; the dual-axis tracking photovoltaic bracket sets the column assembly 2 into two rods, namely the first rod 200 and the second rod 201 that can slide relative to the first rod 200; when the second rod 201 is at the lowest position, the column assembly 2 is at a relatively low height, and the user can save a lot of effort when installing, especially erecting, the column assembly 2; therefore, when installing the photovoltaic bracket, the second rod 201 can be lowered to the lowest height, the lower end of the first rod 200 of the column assembly 2 can be fixed to the ground, and then the rotating bracket 3 with the solar panel 4 can be installed on the upper end of the second rod 201, and finally the winding wheel 5 is rotated to wind the cable 503 to drive the second rod 201 to rise to the required height. During the entire installation process, the installers are on the ground or at a relatively low height, so the safety is good, and the installation operation is simple, convenient, and labor-saving. When the driving mechanism on the photovoltaic bracket is replaced or the solar panel 4 is overhauled, the second rod 201 can be lowered to the lowest height for easy maintenance and simple operation; furthermore, when encountering typhoons or strong winds, the second rod 201 can be lowered to the lowest height to reduce the shaking of the photovoltaic bracket due to wind, and avoid damage to the photovoltaic bracket.

[0037] In this embodiment, if Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in order to keep the second rod 201 fixed in the unfolded state or after rising to a predetermined height, the column assembly 2 is provided with a locking mechanism, which is used to lock the second rod 201 on the first rod 200. The locking mechanism can be arranged between the second rod 201 and the first rod 200, or on the winding wheel 5 of the driving assembly; and in this embodiment, in order to keep the second rod 201 firmly fixed after rising to a predetermined height, a first positioning hole 504 is arranged at the upper end of the first rod 200, and a second positioning hole 505 corresponding to the first positioning hole 504 is arranged at the lower end of the second rod 201; when the second rod 201 is in the unfolded state relative to the first rod 200, the second positioning hole 505 overlaps with the first positioning hole 504 and is connected by a locking bolt 506.

[0038] For example, Figure 5 and Figure 6As shown, at least two groups of first positioning holes 504 are provided at the upper end of the first rod 200, and at least two groups of second positioning holes 505 corresponding thereto are provided at the lower end of the second rod 201. When the second rod 201 rises to a predetermined height, the at least two groups of second positioning holes 505 are respectively aligned one by one with the at least two groups of first positioning holes 504, and are respectively fixed by locking bolts 506.

[0039] In other embodiments, the locking mechanism may also be at least one cam wrench disposed on the second rod 201 , and the cam portion of the cam wrench is pressed against the surface of the first rod 200 by rotating the cam wrench, thereby fixing the second rod 201 on the first rod 200 .

[0040] In this embodiment, if Figure 3 and Figure 4 As shown, in order for the cable 503 to drive the second rod 201 to rise and fall smoothly when the winding wheel 5 is rotated, two fixed pulleys are provided: a first fixed pulley 501 and a second fixed pulley 502. The first fixed pulley 501 and the second fixed pulley 502 are respectively connected to the first rod 200 from top to bottom, and the first fixed pulley 501 is arranged near the upper end of the first rod 200, and the second fixed pulley 502 is arranged near the winding wheel 5; the cable 503 passes through the second fixed pulley 502 and the first fixed pulley 501 from bottom to top and is connected to the lower end of the second rod 201. In this embodiment, the first fixed pulley 501 and the second fixed pulley 502 are both installed on the first rod 200 through a pulley bracket and a screw. With the cooperation of the two fixed pulleys, the cable 503 can be prevented from being misplaced, so that the winding or release of the cable 503 is more stable, so that the second rod 201 can be smoothly raised and lowered.

[0041] Further, in this embodiment, since the cable 503 needs to be connected downward to the lower end of the second rod 201 after passing through the first fixed pulley 501 from the inside of the first rod 200 from bottom to top, the upper part and the side of the first fixed pulley 501 are extended out of the upper end surface and the outer wall surface of the first rod 200 respectively; in this way, when the cable 503 pulls the lower end of the second rod 201 upward, the cable 503 is prevented from rubbing against or interfering with the upper end surface of the first rod 200. In this embodiment, a fixing seat 507 for fixing the cable 503 is connected to the inner wall of the lower end of the second rod 201. The fixing of the end of the cable 503 can be completed by fixing the end of the cable 503 to the fixing seat 507, and the installation is very convenient.

[0042] In some embodiments, the winding wheel 5 is connected to a handle 500 that can drive the winding wheel 5 to rotate. The winding wheel 5 is driven to rotate by rotating the handle 500, so that the winding wheel 5 winds or releases the cable 503. In other embodiments, the handle 500 can also be a driving motor, and the driving motor is used to drive the winding wheel 5 to rotate.

[0043] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0044] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A dual-axis tracking photovoltaic bracket, characterized in that: include A column assembly, comprising a first rod and a second rod slidable relative to the first rod; A driving assembly, used for driving the second rod to rise and fall relative to the first rod; the driving assembly comprises a winding wheel, a cable and at least one fixed pulley connected to the first rod, the winding wheel is rotatably connected to the first rod, one end of the cable is wound on the winding wheel, and the other end of the cable is connected to the lower end of the second rod after passing through the fixed pulley; A rotating bracket is installed with a solar panel, and the rotating bracket is installed on the second rod.

2. The dual-axis tracking photovoltaic bracket according to claim 1, characterized in that: The column assembly is provided with a locking mechanism for locking the second rod member on the first rod member.

3. The dual-axis tracking photovoltaic bracket according to claim 2, characterized in that: A first positioning hole is provided at the upper end of the first rod, and a second positioning hole corresponding to the first positioning hole is provided at the lower end of the second rod; when the second rod is in an unfolded state relative to the first rod, the second positioning hole coincides with the first positioning hole and is connected by a locking bolt.

4. The dual-axis tracking photovoltaic bracket according to claim 1, characterized in that: There are two fixed pulleys: a first fixed pulley and a second fixed pulley, the first fixed pulley and the second fixed pulley are respectively connected to the first rod from top to bottom, and the first fixed pulley is arranged near the upper end of the first rod, and the second fixed pulley is arranged near the winding wheel; the cable passes around the second fixed pulley and the first fixed pulley in sequence from bottom to top and is connected to the lower end of the second rod.

5. The dual-axis tracking photovoltaic bracket according to claim 4, characterized in that: The upper part and the side part of the first fixed pulley extend out of the upper end surface and the outer side wall surface of the first rod respectively; the inner wall of the lower end of the second rod is connected to a fixing seat for fixing the cable.

6. The dual-axis tracking photovoltaic bracket according to claim 1, characterized in that: The winding wheel is connected with a handle which can drive the winding wheel to rotate.

7. The dual-axis tracking photovoltaic bracket according to claim 1, characterized in that: The first rod and the second rod are both hollow tubes, and the second rod is slidably mounted on the first rod; a first friction pad is connected to the inner circumferential wall of the second rod, and the first friction pads are slidably fitted with the outer circumferential wall of the first rod; a second friction pad is connected to the outer circumferential wall of the first rod, and the outer circumferential wall of the second friction pad is slidably fitted with the inner circumferential wall of the second rod.

8. The dual-axis tracking photovoltaic bracket according to claim 1, characterized in that: The photovoltaic support also includes a base, and the lower end of the first rod is fixedly connected to the base.

9. The dual-axis tracking photovoltaic bracket according to claim 1, characterized in that: The rotating bracket includes a first frame body rotatably connected to the upper end of the second rod and a first driving mechanism that drives the first frame body to rotate. The first frame body is connected to a second frame body that rotates relative to the first frame body and a second driving mechanism that drives the second frame body to rotate. The rotation axis of the first frame body is perpendicular to the rotation axis of the second frame body.

10. The dual-axis tracking photovoltaic bracket according to claim 9, characterized in that: The first driving mechanism and the second driving mechanism are both electric push rods.

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