Flat single-shaft supporting structure and photovoltaic support

Abstract

The flat single-shaft supporting structure is used for supporting a photovoltaic assembly, the flat single-shaft supporting structure comprises a main shaft, an upper support and a lower support, the upper support and the lower support are sequentially arranged on the main shaft in the axis direction of the main shaft, and the top end of the upper support is higher than the top end of the lower support; the lower support is used for supporting one side of the photovoltaic module, and the upper support is used for supporting the other side of the photovoltaic module, so that the photovoltaic module is arranged in an inclined manner, and therefore, the photovoltaic module can better adapt to high-latitude regions, the structure is simple, and the stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic brackets, in particular to a flat single-axis support structure and a photovoltaic bracket. Background Art

[0002] A flat single-axis photovoltaic mount is a type of photovoltaic mount with a single horizontal rotation axis. Unlike traditional fixed mounts, it can automatically adjust the angle of the photovoltaic module according to the movement of the sun to maximize the capture of sunlight.

[0003] Existing flat single-axis trackers on the market address the issue of varying solar azimuth angles, improving power generation efficiency. However, because solar motion varies not only in azimuth but also in elevation, flat single-axis trackers are more suitable for use in low-latitude regions. To improve the efficiency of flat single-axis trackers at high latitudes, a support structure with an inclination on the flat single-axis is required to accommodate varying solar elevation angles. Utility Model Content

[0004] The purpose of the present invention is to provide a flat single-axis support structure and a photovoltaic bracket to solve the problem that the flat single-axis tracking bracket proposed in the background art is more suitable for low-latitude areas but has low power generation efficiency in high-latitude areas.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A flat single-axis support structure for supporting a photovoltaic module, comprising a main shaft, an upper bracket and a lower bracket, wherein the upper bracket and the lower bracket are sequentially arranged on the main shaft along the axis of the main shaft, and the top end of the upper bracket is higher than the top end of the lower bracket;

[0007] The upper bracket includes a first connecting member, a support rod and a second connecting member, the second connecting member is fixedly installed on the upper surface of the main shaft and fixedly connected to the support rod, the first connecting member is fixedly installed on the top of the support rod, the first connecting member includes two side walls and a top wall connecting the two side walls, the top wall is used to fixedly connect the bottom of the frame of the photovoltaic module, and the two side walls are fixedly connected to the support rod respectively.

[0008] Preferably, the lower bracket includes a Z-shaped purlin, a third connecting member is fixedly installed at the bottom of the Z-shaped purlin, the third connecting member is fixedly installed on the upper surface of the main shaft, and a step portion is provided at the top of the Z-shaped purlin, the step portion includes a mounting surface for fixed connection to the bottom of the frame of the photovoltaic module, the mounting surface and the top wall are located in the same plane, and the side wall of the step portion is used to abut against the side wall of the photovoltaic module.

[0009] By setting up Z-shaped purlins, the supporting strength of photovoltaic modules is improved.

[0010] Preferably, the first connecting member is a U-shaped structure, the top wall of the first connecting member is tilted, and the tilt angle is consistent with the tilt angle of the photovoltaic component, and multiple bolt holes are opened on both side walls, and the lines connecting the centers of the multiple bolt holes are distributed in a triangular shape.

[0011] The top of the support rod is fixedly connected to the bottom of the photovoltaic module frame through a first connecting piece with a U-shaped structure. The structure is simple, which simplifies the connection method between the photovoltaic module and the support rod; the center lines of the multiple bolt holes on the side wall of the first connecting piece are distributed in a triangular shape. When connecting with the support rod, the corresponding bolt holes can be selected according to the specific installation position for connection, which reduces the number of parts, facilitates batch processing and production, and increases the applicability of parts and installation convenience.

[0012] Preferably, an open groove is provided at the bottom of the Z-shaped purlin, and a purlin reinforcement plate is fixedly installed in the open groove.

[0013] Preferably, two of the support rods and the first connecting member are provided, the two support rods are arranged opposite to each other and at an angle, and are respectively fixedly mounted on both ends of the second connecting member, and the first connecting member is arranged corresponding to the support rods.

[0014] Preferably, fasteners are provided below the main shaft at positions corresponding to the second connecting member and the third connecting member, respectively. The fasteners pass through the second connecting member or the third connecting member and hold the main shaft tightly. The support rod is an H-shaped steel or a U-shaped steel.

[0015] The support rod is made of H-shaped steel or U-shaped steel, which is easy to select and convenient to process.

[0016] Preferably, the second connecting member and the Z-shaped purlin are integrally formed by stamping and bending, and a cavity for accommodating the support rod is provided on the upper portion of the second connecting member, and both side walls of the cavity are fixedly connected to the bottom of the support rod by bolts.

[0017] Preferably, the fastener is a U-shaped bolt, and the two end heads of the U-shaped bolt corresponding to the second connecting member pass through the second connecting member and are fastened by nuts, and the two end heads of the U-shaped bolt corresponding to the third connecting member pass through the third connecting member, the Z-shaped purlin and the purlin reinforcement plate in sequence and are fastened by nuts.

[0018] Preferably, in a direction parallel to the main axis, the projections of the upper bracket and the lower bracket are respectively arranged perpendicular to the main axis. The perpendicular arrangement can make the lower second connecting member fit more closely with the main axis, thereby improving overall stability.

[0019] The utility model also discloses a photovoltaic bracket, comprising the flat single-axis support structure as described above.

[0020] Compared with the prior art, the above technical solution adopted by the present invention has the following technical effects:

[0021] The tilt angle is achieved by installing support structures of different heights on both sides of the photovoltaic module. The support structure on one side is a support rod set at an angle, which makes the photovoltaic module set at an angle, so as to better adapt to high latitudes and make the lower part of the support structure fit more closely with the main axis, thereby improving overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is an explosion diagram of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the Z-shaped purlin of the utility model;

[0025] Figure 4 This is a schematic structural diagram of the first connecting member of the utility model;

[0026] Figure 5 This is a schematic structural diagram of the second connecting member of the present invention;

[0027] Figure 6 This is a structural diagram of the third connecting member of the present utility model.

[0028] Explanation of the accompanying drawings: 1. Main shaft; 2. Photovoltaic module; 3. Upper bracket; 4. Lower bracket; 41. Z-shaped purlin; 410. Step portion; 411. Mounting surface; 5. First connecting member; 51. Side wall; 52. Top wall; 6. Support rod; 7. Second connecting member; 8. Third connecting member; 9. Bolt hole; 10. Purlin reinforcement plate; 11. Fastener; 12. Cavity. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0031] See also Figure 1-6 The utility model provides a flat single-axis support structure, including a main shaft 1, an upper bracket 3 and a lower bracket 4. The upper bracket 3 and the lower bracket 4 are arranged on the main shaft 1 in sequence along the axial direction of the main shaft 1, and the top of the upper bracket 3 is higher than the top of the lower bracket 4. The top of the upper bracket 3 and the top of the lower bracket 4 are used to fix and support the photovoltaic component 2. The top of the upper bracket 3 is higher than the top of the lower bracket 4, so that the photovoltaic component 2 is arranged on the main shaft 1 at an angle, which can better adapt to high latitudes, thereby increasing power generation.

[0032] Specifically, the upper bracket 3 includes a first connecting member 5, a support rod 6 and a second connecting member 7. The first connecting member 5 connects the photovoltaic component 2 and the support rod 6, and the photovoltaic component 2 and the support rod 6 are fixedly connected to the first connecting member 5 by fasteners respectively; the second connecting member 7 is used to connect the support rod 6 and the main shaft 1, and the support rod 6 and the main shaft 1 are fixedly connected to the second connecting member 7 by fasteners respectively. The first connecting member 5 and the second connecting member 7 are respectively arranged at both ends of the support rod 6. In this embodiment, the first connecting member 5 is designed as a U-shaped structure, including two side walls 51 and a top wall 52 connecting the two side walls 51. The first connecting member 5 is sleeved on the top of the support rod 6. Specifically, the top wall 52 of the first connecting member 5 is tilted, and the tilt angle is consistent with the tilt angle of the photovoltaic component 2, that is: the top wall 52 of the first connecting member 5 is a sloped structure, and the top wall 52 is fixedly connected to the frame of the photovoltaic component 2 by bolts. Bolt holes are provided on the top wall 52 to allow bolts to pass through. In this embodiment, the bolt holes on the top wall 52 are preferably long waist-shaped structures, which can better adapt to the tilted setting of the photovoltaic component 2 and improve the assembly convenience; in addition, the top wall 52 is a planar structure, which is in planar contact with the frame of the photovoltaic component 2, has a large contact area, and has good connection stability. The side wall 51 of the first connecting member 5 is fixedly connected to the support rod 6 by bolts. Bolt holes 9 are opened in the side wall 51 to allow the bolts to pass through. Preferably, there are multiple bolt holes 9 on each side wall 51, and the lines connecting the centers of the multiple bolt holes 9 are distributed in a triangular pattern. When connecting to the support rod 6, the corresponding bolt hole 9 can be selected according to the specific installation position. This reduces the number of parts, facilitates batch processing and production, and increases the applicability of parts and installation convenience. Workers do not need to set anti-fouling features during installation, and there will be no problems such as reverse installation. In this embodiment, there are three bolt holes 9 on each side wall 51.

[0033] Please continue to refer to Figure 1 、 Figure 2 and Figure 5 As shown, the second connecting member 7 is fixedly mounted on the upper surface of the main shaft 1, and two support rods 6 and first connecting member 5 are respectively provided. The two support rods 6 are arranged opposite each other and at an angle, and are respectively fixedly mounted on the two ends of the second connecting member 7. The two first connecting members 5 are respectively fixedly mounted on the top of the corresponding support rod 6. The bottom contour of the second connecting member 7 matches at least part of the contour of the main shaft 1 to increase the stability of the assembly. The bottom of the second connecting member 7 is bent in the direction close to the support rod 6 to form an open groove to accommodate the end of the support rod 6. One end of the support rod 6 is located in the open groove and is fixedly connected to the side wall of the open groove by a bolt, thereby achieving a fixed connection between the support rod 6 and the second connecting member 7. The support rod 6, the second connecting member 7 and the main shaft 1 are fixedly connected by a fastener 11. In this embodiment, the fastener 11 is a U-bolt. The two heads of the U-bolt pass through the second connecting member 7 and are tightened by a nut, and then tightly embrace the main shaft 1, thereby achieving a fixed connection between the support rod 6, the second connecting member 7 and the main shaft 1.

[0034] The lower bracket 4 includes a Z-shaped purlin 41, the bottom of which is fixedly mounted a third connecting member 8, which is fixedly mounted on the upper surface of the main shaft 1. The top of the Z-shaped purlin 41 is bent toward the upper bracket 3 to form a stepped portion 410. The stepped portion 410 includes a mounting surface 411 for supporting the photovoltaic module 2. The mounting surface 411 is fixedly connected to the bottom of the frame of the photovoltaic module 2 by bolts. The side walls of the stepped portion 410 are used to abut the side walls of the photovoltaic module 2. It can be understood that the mounting surface 411 and the top wall 52 of the first connecting member 5 are located in the same inclined plane to better accommodate assembly with the photovoltaic module 2. By fixing the mounting surface 411 of the stepped portion 410 to the bottom of the frame of the photovoltaic module 2 and abutting the side walls of the stepped portion 410 with the side walls of the frame of the photovoltaic module 2, the photovoltaic module 2 is limited while the support strength of the Z-shaped purlin 41 is increased.

[0035] The bottom of the Z-shaped purlin 4 is fixedly connected to the third connecting member 8 and the main shaft 1 via a fastener 11. In this embodiment, the fastener 11 is a U-shaped bolt. The bottom of the Z-shaped purlin 41 is provided with an open slot, in which a purlin reinforcement plate 10 is fixedly installed. The two ends of the U-shaped bolt pass through the third connecting member 8, the Z-shaped purlin 41, and the purlin reinforcement plate 10 in sequence, and are then tightened by nuts, thereby holding the main beam 1 tightly and achieving a fixed connection between the Z-shaped purlin 41, the third connecting member 8, and the main shaft 1. Preferably, the bottom profile of the third connecting member 8 matches at least partially the profile of the main shaft 1 to increase assembly stability. The provision of the purlin reinforcement plate 10 enhances the connection strength of the Z-shaped purlin 41.

[0036] In addition to the U-bolt, the fastener 11 may also be a clamp or other forms of bolt structure. The support rod 6 is an H-shaped steel or a U-shaped steel. In this embodiment, the support rod 6 is a U-shaped steel.

[0037] The second connecting member 7 and the Z-shaped purlin 41 are both integrally formed by a stamping and bending process. A cavity 12 for accommodating the support rod 6 is provided on the upper portion of the second connecting member 7. The two side walls of the cavity 12 are fixedly connected to the bottom of the support rod 6 by bolts.

[0038] In the direction parallel to the main axis 2, the projections of the upper bracket 3 and the lower bracket 4 are respectively arranged perpendicular to the main axis 2. The advantage of such an arrangement is that the second connecting member at the bottom fits more closely with the main axis, thereby improving the overall stability.

[0039] In this embodiment, the cross-sectional shape of the main shaft 2 is a six-dimensional square circle including three arcuate edges and three straight edges, wherein the arcuate edges and the straight edges are alternately arranged, which can have the advantages of good torsional resistance and bending resistance of both circular tubes and rectangular tubes. In other embodiments, the main shaft 2 can also be other forms such as rectangular tubes, circular tubes, pentagonal tubes, and heptagonal tubes.

[0040] Working principle or structural principle: By installing support structures of different heights on both sides of the photovoltaic module 2, the photovoltaic module 2 can be tilted. The unique Z-shaped purlin 41 can support the lower part of the photovoltaic module 2, and the upper bracket 3 supports the upper part of the photovoltaic module 2. The second connecting member 7 of the upper bracket 3 is stamped into an integral part, which increases the contact area between the second connecting member 7 and the main shaft 1, making the upper bracket 3 and the main shaft 1 fit more tightly.

[0041] The angled support structure includes a Z-shaped purlin 41, a purlin reinforcement plate 10, a third connecting member 8, a fastener 11 and an upper bracket 3. First, the Z-shaped purlin 41, the third connecting member 8 and the fastener 11 are installed, fixed and locked in sequence, and then the upper bracket 3 is installed in sequence. The photovoltaic module 2 is placed on the support structure and locked with bolts.

[0042] This embodiment also discloses a photovoltaic bracket, which includes the flat single-axis support structure as described above.

[0043] The embodiments of the present invention have been described in detail with reference to the accompanying drawings. It should be noted that any implementations not depicted or described in the drawings or the main text of the specification are known to those skilled in the art and are not described in detail. Furthermore, the definitions of the various components described above are not limited to the specific structures, shapes, or methods described in the embodiments; those skilled in the art may easily modify or replace them.

[0044] Those skilled in the art will appreciate that various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, various combinations and / or combinations of features described in the various embodiments and / or claims of the present invention may be employed without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

[0045] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flat single-axis support structure for supporting a photovoltaic module (2), comprising a main shaft (1), an upper support (3) and a lower support (4), characterized in that: The upper bracket (3) and the lower bracket (4) are sequentially arranged on the main shaft (1) along the axial direction of the main shaft (1), and the top end of the upper bracket (3) is higher than the top end of the lower bracket (4); The upper bracket (3) comprises a first connecting member (5), a support rod (6) and a second connecting member (7), wherein the second connecting member (7) is fixedly mounted on the upper surface of the main shaft (1) and is fixedly connected to the support rod (6), and the first connecting member (5) is fixedly mounted on the top of the support rod (6). The first connecting member (5) comprises two side walls (51) and a top wall (52) connected to the two side walls (51), and the top wall (52) is used for fixedly connecting to the bottom of the frame of the photovoltaic module (2), and the two side walls (51) are respectively fixedly connected to the support rod (6).

2. The flat single-axis support structure according to claim 1, characterized in that: The lower bracket (4) includes a Z-shaped purlin (41), a third connecting member (8) is fixedly installed at the bottom of the Z-shaped purlin (41), and the third connecting member (8) is fixedly installed on the upper surface of the main shaft (1). The top of the Z-shaped purlin (41) is provided with a step portion (410), and the step portion (410) includes a mounting surface (411) for fixedly connecting to the bottom of the frame of the photovoltaic module (2). The mounting surface (411) and the top wall (52) are located in the same plane, and the side wall of the step portion (410) is used to abut against the side wall of the photovoltaic module (2).

3. A flat single-axis support structure according to claim 1 or 2, characterized in that: The first connecting member (5) is a U-shaped structure, the top wall (52) of the first connecting member (5) is tilted, and the tilt angle is consistent with the tilt angle of the photovoltaic module (2), and a plurality of bolt holes (9) are provided on both side walls (51), and the lines connecting the centers of the plurality of bolt holes (9) are distributed in a triangular shape.

4. The flat single-axis support structure according to claim 3, characterized in that: An open groove is provided at the bottom of the Z-shaped purlin (4), and a purlin reinforcement plate (10) is fixedly installed in the open groove.

5. The flat single-axis support structure according to claim 1, characterized in that: The support rods (6) and the first connecting member (5) are both provided with two, the two support rods (6) are arranged opposite to each other and at an angle, and are respectively fixedly mounted on the two ends of the second connecting member (7), and the first connecting member (5) is provided correspondingly to the support rods (6).

6. The flat single-axis support structure according to claim 4, characterized in that: A fastener (11) is provided below the main shaft (1) at positions corresponding to the second connecting member (7) and the third connecting member (8), respectively. The fastener (11) passes through the second connecting member (7) or the third connecting member (8) and holds the main shaft (1). The support rod (6) is an H-shaped steel or a U-shaped steel.

7. The flat single-axis support structure according to claim 6, characterized in that: The second connecting member (7) and the Z-shaped purlin (4) are both integrally formed by stamping and bending, and a cavity (12) for accommodating the support rod (6) is provided on the upper portion of the second connecting member (7), and the two side walls of the cavity (12) are fixedly connected to the bottom of the support rod (6) by bolts.

8. The flat single-axis support structure according to claim 7, characterized in that: The fastener (11) is a U-shaped bolt, and the ends of the U-shaped bolt corresponding to the second connecting member (7) pass through the second connecting member (7) and are then fastened by nuts. The ends of the U-shaped bolt corresponding to the third connecting member (8) pass through the third connecting member (8), the Z-shaped purlin (41) and the purlin reinforcement plate (10) in sequence and are then fastened by nuts.

9. The flat single-axis support structure according to claim 1, characterized in that: In a direction parallel to the main axis (1), the projections of the upper bracket (3) and the lower bracket (4) are respectively arranged perpendicular to the main axis (1).

10. A photovoltaic support, characterized in that: The flat uniaxial support structure comprises the flat uniaxial support structure according to any one of claims 1 to 9.

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