Photovoltaic tracking support

Abstract

The utility model discloses a photovoltaic tracking support which is suitable for assembling a frameless assembly, two guide rails are arranged on the lower surface of the frameless assembly in parallel, and the photovoltaic tracking support comprises a main shaft; the mounting seats are fixed on the main shaft, and the two mounting seats are arranged corresponding to the guide rails; the purlines are fixedly connected with the guide rails and the mounting bases, the two purlines are symmetrically arranged relative to the center of the frameless assembly, and at least part of each purline abuts against the side, close to the other mounting base, of the corresponding mounting base. The photovoltaic tracking support has high adaptability and stability, the installation and use of a frameless assembly in the tracking support are expanded, and the wind resistance and snow resistance are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar power generation, in particular to a photovoltaic tracking bracket. Background Art

[0002] With the intensifying cost reduction storm of photovoltaic modules, frameless modules are slowly emerging frequently in photovoltaic tracking projects. In order to enable the frameless modules to be reliably adapted to the tracking bracket, the existing frameless photovoltaic modules are usually fixed above the main beam by using C-shaped or U-shaped purlins, and then screw-connected to the fixing parts below the photovoltaic modules. The stability and rigidity of this structure are poor, and the wind resistance performance also needs to be further improved.

[0003] Therefore, it is necessary to provide a new photovoltaic tracking bracket to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a photovoltaic tracking bracket suitable for frameless modules, expand the application and installation of frameless modules in the tracking bracket, and improve the overall stability and rigidity.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A photovoltaic tracking bracket is suitable for assembling frameless modules. Two guide rails are arranged in parallel on the lower surface of the frameless modules. The photovoltaic tracking bracket includes:

[0007] A main shaft;

[0008] Mounting seats are fixed on the main shaft, and two mounting seats are arranged corresponding to the guide rails;

[0009] Purlins are fixedly connected to the guide rails and the mounting seats. The two purlins are symmetrically arranged with respect to the center of the frameless module, and at least part of the purlins abuts against one side of the mounting seat close to the other mounting seat.

[0010] As a further improved technical solution of the utility model, the purlin includes a first connecting wall, a second connecting wall, a supporting wall and a bending part. The first connecting wall and the second connecting wall are respectively arranged at both ends of the supporting wall. The first connecting wall is parallel to the second connecting wall and perpendicular to the supporting wall. The first connecting wall is fixedly connected to the guide rail, the second connecting wall is fixedly connected to the mounting seat, and the bending part is arranged between the second connecting wall and the supporting wall. At least part of the bending part abuts against one side of the mounting seat close to the other mounting seat.

[0011] As a further improved technical solution of the present utility model, the bending portion includes a first abutting wall, the first abutting wall is parallel to the supporting wall, and at least part of the first abutting wall abuts against one side of the mounting seat close to the other mounting seat.

[0012] As a further improved technical solution of the present utility model, the bending portion further includes a second abutting wall, the second abutting wall is perpendicular to the supporting wall, both ends of the second abutting wall are respectively connected to the supporting wall and the first abutting wall, the height position where the second abutting wall is located is lower than that of the second connecting wall, and at least part of the second abutting wall abuts against the main shaft or the mounting seat.

[0013] As a further improved technical solution of the present utility model, the first connecting wall and the second connecting wall are respectively located on both sides of the supporting wall.

[0014] As a further improved technical solution of the present utility model, the purlin further includes a first reinforcing wall and a second reinforcing wall, the first reinforcing wall is perpendicular to the first connecting wall and is arranged at one end of the first connecting wall far from the supporting wall, and the second reinforcing wall is perpendicular to the second connecting wall and is arranged at one end of the second connecting wall far from the supporting wall.

[0015] As a further improved technical solution of the present utility model, the mounting seat includes a base portion and an extension portion extending vertically downward from the base portion, the base portion is fixedly connected to the second connecting wall, at least part of the extension portion abuts against the main shaft, and at least part of the first abutting wall abuts against one side of the extension portion close to the other mounting seat.

[0016] As a further improved technical solution of the present utility model, the mounting seat further includes a fitting portion, the fitting portion is parallel to the base portion, the height position where the fitting portion is located is lower than that of the base portion, at least part of the fitting portion abuts against the main shaft, and at least part of the second abutting wall abuts against the fitting portion.

[0017] As a further improved technical solution of the present utility model, the photovoltaic tracking bracket further includes a connecting member, the connecting member is fixedly connected to the mounting seat and at least part of it fits against the main shaft, and the connecting member and the mounting seat cooperate to surround the main shaft.

[0018] As a further improved technical solution of the present utility model, the distance between the two mounting seats is greater than the distance between the two guide rails.

[0019] Compared with the prior art, the beneficial effects of the photovoltaic tracking bracket of the present utility model are as follows: Each frameless component is installed on the main shaft through two purlins and mounting seats. The two purlins are mirror - set, and the two purlins respectively at least partially abut against one side of the two mounting seats close to each other, improving the overall stability and rigidity. Especially when the wind blows in the axial direction of the main shaft, since the purlins abut against the mounting seats in the direction away from the other purlin, the wind resistance in the axial direction can be improved. The two purlins support each other, and the snow - resistance can also be improved. This photovoltaic tracking bracket has high adaptability and stability, expanding the installation and use of frameless components in tracking brackets. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a photovoltaic tracking bracket according to a specific embodiment of the present utility model;

[0021] Figure 2 is Figure 1 an enlarged structural diagram of area A in

[0022] Figure 3 is Figure 1 an enlarged structural diagram of area B in

[0023] Figure 4 is a schematic structural diagram of a purlin according to a specific embodiment of the present utility model;

[0024] Figure 5 is a schematic structural diagram of a purlin and a mounting seat according to a specific embodiment of the present utility model;

[0025] Figure 6 is Figure 1 a left - view structural diagram of the photovoltaic tracking bracket of

[0026] Figure 7 is Figure 6 an enlarged structural diagram of area C in

[0027] Figure 8 is an assembly schematic diagram of a purlin, a mounting seat and a connecting piece according to a specific embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will describe in detail the exemplary specific embodiments of the present utility model with reference to the drawings. If there are several specific embodiments, the features in these embodiments can be combined with each other without conflict. When the description involves the drawings, unless otherwise specified, the same numbers in different drawings represent the same or similar elements. The content described in the following exemplary specific embodiments does not represent all embodiments consistent with the present utility model; on the contrary, they are only examples of devices, products, and / or methods that are consistent with some aspects of the present utility model recorded in the claims of the present utility model.

[0029] The terms used in the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the protection scope of the present utility model. The singular forms of "a", "the" or "said" used in the description and claims of the present utility model are also intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should be understood that the terms such as "first", "second" and similar words used in the description and claims of the present utility model do not indicate any order, quantity or importance, but are only used to distinguish the named features. Similarly, words such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. Unless otherwise specified, the similar words such as "front", "rear", "upper" and "lower" used in the present utility model are only for convenience of description and are not limited to a specific position or a spatial orientation. The open-ended expression such as "comprising" or "including" means that the elements appearing before "comprising" or "including" cover the elements appearing after "comprising" or "including" and their equivalents, which does not exclude that the elements appearing before "comprising" or "including" may further include other elements. If "several" appears in the present utility model, its meaning refers to two or more.

[0031] Please refer to Figures 1 to 8 As shown, this embodiment discloses a photovoltaic tracking bracket suitable for assembling a frameless module 100. Two guide rails 101 are arranged in parallel on the lower surface of the frameless module 100. The photovoltaic tracking bracket includes a main shaft 1, a mounting base 2 and purlins 3. The two guide rails 101 are respectively installed on the main shaft 1 through two groups of purlins 3 and the mounting base 2. The two mounting bases 2 are fixed to the main shaft 1 corresponding to the two guide rails 101. The purlins 3 are fixedly connected to the guide rails 101 and the mounting base 2, and the two guide rails 101 are symmetrically arranged with respect to the center of the frameless module 100, and the two purlins 3 are also symmetrically arranged with respect to the center of the frameless module 100. The two purlins 3 are mirror-symmetrically arranged and can support each other to improve the overall stability and rigidity.

[0032] Please refer to Figures 1 to 3 As shown, at least part of the purlin 3 abuts against one side of the mounting base 2 close to the other mounting base 2, that is, both purlins 3 abut against the outside. In this way, when the wind is in the axial direction of the main shaft 1, because the purlin 3 abuts against the mounting base 2 in the direction away from the other purlin 3, that is, the purlin 3 abuts against the mounting base 2 towards the outside, the wind resistance in the axial direction is improved. At the same time, the forces of the two purlins 3 abutting against the mounting base 2 are opposite, and the two purlins 3 can support each other, improving the snow resistance.

[0033] The guide rail 101 can be fixed to the lower surface of the frameless module 100 by gluing or other means.

[0034] Please refer to Figures 2 to 4 As shown, the purlin 3 includes a first connecting wall 31, a second connecting wall 32, a supporting wall 33 and a bending portion 34. The first connecting wall 31 and the second connecting wall 32 are respectively arranged at the upper and lower ends of the supporting wall 33. The first connecting wall 31 is parallel to the second connecting wall 32 and perpendicular to the supporting wall 33. Among them, the first connecting wall 31 is fixedly connected to the guide rail 101, and the second connecting wall 32 is fixedly connected to the mounting seat 2. Specifically, the first connecting wall 31 and the second connecting wall 32 are horizontally arranged relative to the frameless assembly 100. In this way, the first connecting wall 31 and the second connecting wall 32 have a large contact area and are connected to the guide rail 101 and the mounting seat 2, and the connection stability is relatively high. The supporting wall 33 is vertically arranged relative to the frameless assembly 100. In this way, the supporting wall 33 can have better supporting stability and provides a certain height space for the connection of the first connecting wall 31 and the second connecting wall 32 to the guide rail 101 and the mounting seat 2 respectively. The bending portion 34 is arranged between the second connecting wall 32 and the supporting wall 33. The bending portion 34 at least partially abuts against one side of the mounting seat 2 close to another mounting seat 2. In this way, the supporting strength of the supporting wall 33 and the entire purlin 3 can be enhanced. After the purlin 3 is deformed by force, the abutment with the mounting seat 2 will be enhanced, thereby improving the bearing capacity of the purlin 3. Specifically, the bending portion 34 includes a first abutting wall 341. The first abutting wall 341 is parallel to the supporting wall 33 and at least partially abuts against one side of the mounting seat 2 close to another mounting seat 2, and at least part of the first abutting wall 341 and at least part of the supporting wall 33 are at the same height position. That is, in the height direction, the projection of the first abutting wall 341 at least partially overlaps with the projection of the supporting wall 33. In this way, the first abutting wall 341 can better improve the supporting strength of the purlin 3.

[0035] Please refer to Figures 2 to 4 As shown, in this embodiment, the bending portion 34 further includes a second abutting wall 342. The second abutting wall 342 is perpendicular to the supporting wall 33. The two ends of the second abutting wall 342 are respectively connected to the supporting wall 33 and the first abutting wall 341. The supporting wall 33 and the first abutting wall 341 respectively extend upward from the two ends of the second abutting wall 342, and the length of the first abutting wall 341 is less than the length of the supporting wall 33. The second abutting wall 342 is parallel to the second connecting wall 32, and the length of the second abutting wall 342 is less than the length of the second connecting wall 32. The height position where the second abutting wall 342 is located is lower than that of the second connecting wall 32. The second abutting wall 342 at least partially abuts against the main shaft 1 or the mounting seat 2. With such a setting, the bending portion 34 axially abuts against the mounting seat 2 to enhance the supporting strength of the purlin 3. At the same time, it abuts against the main shaft 1 or the mounting seat 2 downward to increase the contact area between the purlin 3 and the mounting seat 2 and further improve the supporting force. By setting the concave-convex strengthening structure, that is, the bending portion 34, when the purlin 3 is subjected to a certain pressure, the bending portion 34 will enhance the contact with the mounting seat 2 and play a supporting role. Part of the force is transmitted to the main shaft 1, improving the bending resistance of the purlin 3.

[0036] Furthermore, the purlin 3 further includes a first reinforcing wall 35 and a second reinforcing wall 36. The first reinforcing wall 35 is perpendicular to the first connecting wall 31 and is provided at one end of the first connecting wall 31 away from the support wall 33. The second reinforcing wall 36 is perpendicular to the second connecting wall 32 and is located at one end of the second connecting wall 32 away from the support wall 33. Specifically, the first reinforcing wall 35 extends downward from one end of the first connecting wall 31 away from the support wall 33, and the length of the first reinforcing wall 35 is much smaller than the length of the support wall 33. The second reinforcing wall 36 extends upward from one end of the second connecting wall 32 away from the support wall 33, and the length of the second reinforcing wall 36 is much smaller than the length of the support wall 33. The arrangement of the first reinforcing wall 35 and the second reinforcing wall 36 increases the bending structure in the purlin 3, which can improve the strength and rigidity of the purlin 3 to a certain extent, and further improve the support strength of the photovoltaic tracking bracket for the frameless module 100.

[0037] Please refer to Figure 2 、 Figure 3 、 Figures 5 to 8 As shown, the mounting seat 2 includes a base 21 and an extension part 22 extending vertically downward from the base 21. The base 22 is fixedly connected to the second connecting wall 32 of the purlin 3. At least part of the lower contour of the extension part 22 is adapted to and abuts against the main shaft 1, and at least part of the first abutting wall 341 abuts against one side of the extension part 22 of the mounting seat 2 close to another mounting seat 2. Further, the mounting seat 2 is a symmetric structure, and the two extension parts 22 respectively extend vertically downward from both axial ends of the base 21 along the main shaft 1, and at least part of the first abutting wall 341 abuts against the extension part 22 of the mounting seat 2 connected to the purlin 3 on one side close to another mounting seat 2.

[0038] Please refer to Figure 2 、 Figure 3 、 Figures 5 to 8 As shown, the mounting seat 2 further includes a fitting part 23. The fitting part 23 is parallel to the base 21, the height position of the fitting part 23 is lower than that of the base 21, at least part of the fitting part 23 abuts against the main shaft 1 downward, and at least part of the second abutting wall 342 abuts against the fitting part 23 downward. The arrangement of the fitting part 23 increases the contact area between the mounting seat 2 and the main shaft 1, and at the same time increases the contact area between the purlin 3 and the mounting seat 2, thereby improving the connection stability and support strength. Specifically, the two fitting parts 23 respectively extend vertically from the middle parts of the two extension parts 22 toward the sides away from each other.

[0039] Please refer to Figures 1 to 3 、 Figures 6 to 8As shown in the figure, the photovoltaic tracking bracket of this embodiment further includes a connecting member 4. The connecting member 4 is fixedly connected to the mounting base 2 and at least partially fits the main shaft 1. The connecting member 4 and the mounting base 2 cooperate to surround the main shaft 1. The connecting member 4 includes an enclosing portion 41 and a connecting portion 42. The enclosing portion 41 fits at least a part of the outer wall of the main shaft 1, and the connecting portion 42 is fixedly connected to the mounting base 2. Further, the enclosing portion 41 is relatively flat to better fit the main shaft 1 for limiting, and the connecting portion 42 is cylindrical to enhance the connection strength with the mounting base 2. In this embodiment, the connecting member 4 is connected to the mounting base 2 and the purlin 3 at the same time. The outer periphery of the connecting portion 42 is provided with threads. The connecting portion 42 passes through the base 21 of the mounting base 2 and the second connecting wall 32 of the purlin 3 from bottom to top, and a nut is screwed into the connecting portion 42 from one side of the second connecting wall 32 and tightened to fixedly connect the purlin 3, the mounting base 2 and the connecting member 4, and the connecting member 4 and the mounting base 2 hold the main shaft 1 tightly to realize the fixed connection between the purlin 3 and the main shaft 1. Furthermore, the frameless assembly 100 can be fixedly installed on the main shaft 1 and rotate with the main shaft 1.

[0040] In this embodiment, the first connecting wall 31 and the second connecting wall 32 are respectively located on both sides of the support wall 33 in the axial direction of the main shaft 1. The length of the first connecting wall 31 is equivalent to the length of the bottom wall of the guide rail 101, and the length of the second connecting wall 32 is equivalent to the length of the base 21 of the mounting base 2. With such a setting, the purlin 3 can have relatively high strength and better connection stability between the guide rail 101 and the mounting base 2. The first connecting wall 31 and the guide rail 101 are fixedly connected by a bolt assembly 5.

[0041] Further, the distance between the two mounting bases 2 is greater than the distance between the two guide rails 101. The two purlins 3 respectively abut against the mounting bases 2 on the outer sides of the two ends of the main shaft 1 in the axial direction of the frameless assembly 100. When the wind blows in the axial direction of the main shaft 1, the two purlins 3 can jointly resist the wind blowing from both axial sides, improving the wind resistance of the photovoltaic tracking bracket in the axial direction.

[0042] In other embodiments, the first connecting wall 31 and the second connecting wall 32 are located on the same side of the support wall 33 in the axial direction of the main shaft 1.

[0043] The structures of the purlin 3 and the mounting base 2 in this embodiment are both formed by bending. Specifically, between the first connecting wall 31 and the support wall 33, between the first connecting wall 31 and the first reinforcing wall 35, between the second connecting wall 32 and the second reinforcing wall 36, between the second connecting wall 32 and the first abutting wall 341, between the first abutting wall 341 and the second abutting wall 342, between the second abutting wall 342 and the support wall 33, as well as between the base 21 and the extending portion 22, and between the extending portion 22 and the fitting portion 23, a certain included angle is bent. Therefore, the purlin 3 and the mounting base 2 respectively have a plurality of bending structures, thus having relatively high rigidity and strength.

[0044] In summary, compared with the prior art, the photovoltaic tracking bracket of the present utility model has the following advantages: Each frameless component 100 is installed on the main shaft 1 through two groups of purlins 3 and mounting seats 2. The two purlins 3 are arranged in a mirror image, and the two purlins 3 respectively at least partially abut against one side of the two mounting seats 2 close to each other, improving the overall stability and rigidity. Especially when the wind is in the axial direction of the main shaft 1, since the purlin 3 abuts against the mounting seat 2 in the direction away from the other purlin 3, the wind resistance in the axial direction can be improved. The two purlins 3 support each other, and the snow resistance can also be improved. The photovoltaic tracking bracket has high adaptability and stability, and expands the installation and use of the frameless component 100 in the tracking bracket.

[0045] The above embodiments are only used to illustrate the present utility model and do not limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art of the relevant technical field. Although this specification has described the present utility model in detail with reference to the above embodiments, those of ordinary skill in the art should understand that those skilled in the relevant technical field can still modify the present utility model or make equivalent replacements. All technical solutions and their improvements that do not depart from the spirit and scope of the present utility model shall be covered within the scope of the claims of the present utility model.

Claims

1. A photovoltaic tracking bracket, adapted to be assembled with a frameless module (100), wherein two guide rails (101) are arranged in parallel on the lower surface of the frameless module (100), characterized in that, The photovoltaic tracking bracket includes: A main shaft (1); Mounting seats (2), fixed on the main shaft (1), and two mounting seats (2) are provided corresponding to the guide rails (101); Purlins (3), fixedly connecting the guide rails (101) and the mounting seats (2), the two purlins (3) are symmetrically arranged relative to the center of the frameless assembly (100), and at least part of the purlins (3) abuts against one side of the mounting seat (2) close to the other mounting seat (2).

2. The photovoltaic tracking bracket according to claim 1, wherein: The purlin (3) includes a first connecting wall (31), a second connecting wall (32), a supporting wall (33) and a bending part (34). The first connecting wall (31) and the second connecting wall (32) are respectively arranged at both ends of the supporting wall (33). The first connecting wall (31) is parallel to the second connecting wall (32) and perpendicular to the supporting wall (33). The first connecting wall (31) is fixedly connected to the guide rail (101), the second connecting wall (32) is fixedly connected to the mounting seat (2), the bending part (34) is arranged between the second connecting wall (32) and the supporting wall (33), and at least part of the bending part (34) abuts against one side of the mounting seat (2) close to the other mounting seat (2).

3. The photovoltaic tracking bracket according to claim 2, wherein: The bending part (34) includes a first abutting wall (341), the first abutting wall (341) is parallel to the supporting wall (33), and at least part of the first abutting wall (341) abuts against one side of the mounting seat (2) close to the other mounting seat (2).

4. The photovoltaic tracking bracket according to claim 3, wherein: The bending part (34) further includes a second abutting wall (342), the second abutting wall (342) is perpendicular to the supporting wall (33), both ends of the second abutting wall (342) are respectively connected to the supporting wall (33) and the first abutting wall (341), the height position where the second abutting wall (342) is located is lower than that of the second connecting wall (32), and at least part of the second abutting wall (342) abuts against the main shaft (1) or the mounting seat (2).

5. The photovoltaic tracking bracket according to claim 2, wherein: The first connecting wall (31) and the second connecting wall (32) are respectively located on both sides of the supporting wall (33).

6. The photovoltaic tracking bracket according to claim 2, wherein: The purlin (3) further includes a first reinforcing wall (35) and a second reinforcing wall (36). The first reinforcing wall (35) is perpendicular to the first connecting wall (31) and is arranged at one end of the first connecting wall (31) away from the supporting wall (33). The second reinforcing wall (36) is perpendicular to the second connecting wall (32) and is arranged at one end of the second connecting wall (32) away from the supporting wall (33).

7. The photovoltaic tracking bracket according to claim 4, wherein: The mounting seat (2) includes a base (21) and an extension part (22) extending vertically downward from the base (21). The base (21) is fixedly connected to the second connecting wall (32), at least part of the extension part (22) abuts against the main shaft (1), and at least part of the first abutting wall (341) abuts against one side of the extension part (22) close to the other mounting seat (2).

8. The photovoltaic tracking bracket according to claim 7, wherein: The mounting base (2) further includes a fitting portion (23), the fitting portion (23) is parallel to the base portion (21), the height position where the fitting portion (23) is located is lower than that of the base portion (21), at least a part of the fitting portion (23) abuts against the main shaft (1), and at least a part of the second abutting wall (342) abuts against the fitting portion (23).

9. The photovoltaic tracking bracket according to claim 7, characterized in that: The photovoltaic tracking bracket further includes a connecting member (4), the connecting member (4) is fixedly connected to the mounting base (2) and at least partially fits against the main shaft (1), and the connecting member (4) and the mounting base (2) cooperate to surround the main shaft (1).

10. The photovoltaic tracking bracket according to claim 1, characterized in that: The distance between the two mounting bases (2) is greater than the distance between the two guide rails (101).

Images