Concrete roof distributed photovoltaic module fixing device

Abstract

The utility model discloses a concrete roof distributed photovoltaic module fixing device, which relates to photovoltaic module auxiliary installation equipment, comprises a pressing block used for fixedly connecting a distributed photovoltaic module and a wingceltis bar, and is characterized by further comprising a fixing plate comprising a first connecting part and a second connecting part which are integrally formed, the first connecting part is positioned on the left or right of the second connecting part; the top surface of the first connecting part is flush with the top surface of the second connecting part; the front side and the rear side of the second connecting part extend downwards and are used for being matched with wingceltis strips in an inserted mode, and the second connecting part is provided with a connecting hole penetrating through the second connecting part vertically. And the first connecting part is used for pressing the outer frame of the distributed photovoltaic module. The concrete roof distributed photovoltaic assembly fixing device disclosed by the utility model can improve the safety of the photovoltaic assembly, realizes secondary protection of the photovoltaic assembly, and greatly reduces the risk of falling of the photovoltaic assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary installation equipment for photovoltaic modules, and particularly relates to a fixing device for distributed photovoltaic modules on a concrete roof. Background Art

[0002] With the continuous increase in the installed capacity of photovoltaic power stations, the safety of power stations has also become an issue that people pay more and more attention to. Moreover, the increase in extreme weather such as high temperature and heavy rain in summer has further exacerbated the potential safety hazards of power stations. Strong wind is one of the main causes of photovoltaic accidents. Especially in extreme weather such as summer typhoons, thunderstorm gales, and hailstorms, there have been cases in many places where the rooftop photovoltaic power stations have been blown over by strong winds.

[0003] The installation angle of distributed photovoltaic modules on a concrete roof is generally 15° - 35°. Due to its relatively large installation angle, the wind force it bears is also relatively large. To solve the safety problem of distributed photovoltaic modules on a concrete roof in areas with strong wind and prevent the modules from being blown off by strong wind, the conventional solution is to fix the outer frame of the photovoltaic module 2 on the purlin 1 through the aluminum alloy pressing block 3, and then fix the pressing block 3 and the purlin 1 through bolts and nuts. Please refer to Figure 1 .

[0004] This fixing method can meet the project requirements in areas with low wind force. However, when the wind force is large, if the nuts of individual pressing blocks are not tightened or the nuts become loose after long-term operation, it may cause the photovoltaic module to be blown off by strong wind, thus triggering potential safety hazards. Content of the Utility Model

[0005] To solve the deficiencies in the prior art, the utility model provides a fixing device for distributed photovoltaic modules on a concrete roof, which can improve the safety of photovoltaic modules, achieve secondary protection for photovoltaic modules, and greatly reduce the risk of photovoltaic module falling.

[0006] The utility model adopts the following technical solutions.

[0007] A fixing device for distributed photovoltaic modules on a concrete roof includes: a pressing block, which is used to fixedly connect the distributed photovoltaic module and the purlin. The fixing device further includes: a fixing plate, which includes an integrally formed first connecting portion and a second connecting portion. The first connecting portion is located on the left or right side of the second connecting portion; the top surface of the first connecting portion is flush with the top surface of the second connecting portion; both the front and rear sides of the second connecting portion extend downward for plugging and matching with the purlin, and the second connecting portion is provided with a connecting hole penetrating through its upper and lower parts; the first connecting portion is used to press the outer frame of the distributed photovoltaic module.

[0008] Preferably, the width of the first connecting portion is greater than the width of the second connecting portion, and the center line of the second connecting portion coincides with the center line of the first connecting portion.

[0009] Preferably, the connecting hole is an oval hole, and the connecting line of the centers of the two circles of the oval hole coincides with the center line of the second connecting portion.

[0010] Preferably, the pressing block is arranged at the top of the outer frame of the photovoltaic module and is used to press the outer frame on the purlin, and the pressing block and the purlin are fixedly connected by connecting bolts.

[0011] Preferably, a plurality of purlins are provided, and each purlin is fixedly connected to the inclined frame perpendicularly.

[0012] Preferably, a plurality of support columns are arranged at equal intervals at the bottom of the inclined frame, and each support column is fixedly connected to the inclined frame at one end and fixedly connected to the support base at the other end.

[0013] Preferably, the lengths of the plurality of support columns gradually increase or decrease from left to right.

[0014] Preferably, the included angle between the inclined frame and the horizontal plane is 15° - 35°.

[0015] Preferably, the included angle between the inclined frame and the horizontal plane is 20°.

[0016] Preferably, the support column and the inclined frame are fixedly connected by a connecting block; one side of the connecting block is fixedly connected to the support column, and the other side is fixedly connected to the inclined frame.

[0017] The beneficial effect of the present utility model is that, compared with the prior art, on the basis of using a pressing block to fix the photovoltaic module in the prior art, the present utility model uses a fixing plate to perform secondary reinforcement between the photovoltaic module and the purlin, and the fixing plate is arranged between the photovoltaic module and the purlin, which is not easily eroded by wind and rain, has a firm fixation and a longer service life. When the connecting bolt for fixing the pressing block becomes loose, the photovoltaic module can still maintain the connection with the purlin under the action of the fixing plate, thereby reducing the possibility of the photovoltaic module falling and leaving more time for the operation and maintenance personnel to deal with the problem of the loose bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of a commonly used structure for fixing a photovoltaic module with a pressing block in the prior art;

[0019] Figure 2 It is a top view of the fixed device for a concrete roof distributed photovoltaic module in the present utility model;

[0020] Figure 3 It is a front view of the fixed device for a concrete roof distributed photovoltaic module in the present utility model.

[0021] In the figure:

[0022] 1. Purlin; 2. Photovoltaic module; 3. Compression block; 4. Connecting bolt; 5. Inclined frame; 6. Support column; 7. Support base; 8. Connecting block; 9. Fixed plate; 901. First connecting part; 902. Second connecting part; 903. Connecting hole. Detailed implementation mode

[0023] To make the purpose, technical solution and advantages of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. The embodiments described in this application are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the spirit of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0024] As Figure 2 . Figure 3 shown, this embodiment provides a fixing device for distributed photovoltaic modules on a concrete roof, including: a fixed plate 9, the fixed plate 9 includes an integrally formed first connecting part 901 and a second connecting part 902. Refer to Figure 3 the front view of the fixed plate 9 in, from the front view angle, the first connecting part 901 is located on the left or right side of the second connecting part 902. The width of the first connecting part 901 is greater than the width of the second connecting part 902, and the center line of the second connecting part 902 coincides with the center line of the first connecting part 901, so that the fixed plate 9 is integrally in a T shape.

[0025] Furthermore, from the front view angle, the top surface of the first connecting part 901 is flush with the top surface of the second connecting part 902. Both the front and rear sides of the second connecting part 902 extend downward for plug-in fit with both sides of the purlin 1, and the first connecting part 901 is used to press the outer frame of the distributed photovoltaic module 2.

[0026] Even further, a connecting hole 903 penetrating through the upper and lower parts is provided at the center of the second connecting part 902. The connecting hole 903 is preferably an oval hole, and the connecting line of the two centers of the oval hole coincides with the center line of the second connecting part 902.

[0027] As Figure 1 shown, in the prior art, for the fixing method of distributed photovoltaic modules on a concrete roof, the inclined frame 5 is usually kept at an angle of 15° - 35° with the horizontal plane. In this embodiment, it is preferably 20°, and a plurality of support columns 6 with gradually increasing lengths from left to right are arranged at equal intervals at the bottom of the inclined frame 7 to play a role in fixing and supporting the inclined frame 5. Each support column 6 is provided with a support base 7 at the bottom and is fixedly connected to the bottom of the inclined frame 5 through a connecting block 8 at the top.

[0028] A plurality of purlins 1 are installed at the top of each inclined frame 5 by bolts. Preferably, the purlin 1 is a U-shaped purlin. When installing the photovoltaic module, the outer frame of the photovoltaic module 2 is pressed on each purlin 1 by a pressing block 3, and the pressing block 3 is fixed to each purlin 1 by a connecting bolt 4 and a nut.

[0029] The fixing device provided by the present utility model is used in combination with the pressing block 3 in the prior art. At the bottom of the photovoltaic module 2 fixed by the pressing block 3, the first connecting portion 901 in the fixing plate 9 is inserted into the inner part of the outer frame of the photovoltaic module 2 and presses the outer frame. At the same time, the second connecting portion 902 in the fixing plate 9 presses on the purlin 1. Then, an M10*80 stainless steel bolt is used to pass through the connecting hole 903 on the second connecting portion 902 and the purlin 1, and then the bolt is tightened to realize the firm connection between the fixing plate 9 and the purlin 1. At this time, the first connecting portion 901 tightly presses the outer frame on the surface of the purlin 1, so that the outer frame of the photovoltaic module 2 and the purlin 1 can be secondarily reinforced, thereby making the fixing of the photovoltaic module more reliable.

[0030] In a preferred but non-limiting embodiment of the present utility model, the fixing plate 9 is made of a Q235 hot-dip galvanized component. It is applicable to a conventional purlin bracket of U41*52*2.0 profile.

[0031] The beneficial effect of the present utility model is that, compared with the prior art, on the basis of using a pressing block to fix the photovoltaic module in the prior art, the present utility model uses a fixing plate to secondarily reinforce between the photovoltaic module and the purlin, and the fixing plate is arranged between the photovoltaic module and the purlin, which is not easily eroded by wind and rain, has a firm fixation and a longer service life. When the connecting bolt for fixing the pressing block becomes loose, the photovoltaic module can still maintain the connection with the purlin under the action of the fixing plate, thereby reducing the possibility of the photovoltaic module falling and leaving more time for the operation and maintenance personnel to handle the problem of the loose bolt.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present utility model or make equivalent substitutions, and any modification or equivalent substitution that does not depart from the spirit and scope of the present utility model shall be covered within the protection scope of the claims of the present utility model.

Claims

1. A fixing device for distributed photovoltaic modules on a concrete roof, comprising: The pressing block (3) is used for fixedly connecting the distributed photovoltaic module (2) and the purlin (1), and is characterized in that: The fixing device further includes: a fixing plate (9), the fixing plate (9) includes an integrally formed first connecting portion (901) and a second connecting portion (902), and the first connecting portion (901) is located on the left or right side of the second connecting portion (902); The top surface of the first connecting portion (901) is flush with the top surface of the second connecting portion (902); both the front and rear sides of the second connecting portion (902) extend downward for plugging and matching with the purlin (1), and the second connecting portion (902) is provided with a connecting hole (903) penetrating through the upper and lower portions thereof; The first connecting portion (901) is used for pressing the outer frame of the distributed photovoltaic module (2).

2. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 1, characterized in that: The width of the first connecting portion (901) is greater than the width of the second connecting portion (902), and the center line of the second connecting portion (902) coincides with the center line of the first connecting portion (901).

3. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 1, characterized in that: The connecting hole (903) is an oblong hole, and the connecting line of the two centers of the oblong hole coincides with the center line of the second connecting portion (902).

4. The fixing device for the distributed photovoltaic module on the concrete roof according to any one of claims 1-3, characterized in that: The pressing block (3) is arranged on the top of the outer frame of the photovoltaic module (2) for pressing the outer frame on the purlin (1), and the pressing block (3) and the purlin (1) are fixedly connected through a connecting bolt (4).

5. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 4, characterized in that: A plurality of purlins (1) are provided, and each purlin (1) is fixedly connected perpendicularly to the inclined frame (5).

6. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 5, characterized in that: A plurality of support columns (6) are equidistantly arranged at the bottom of the inclined frame (5), and each support column (6) is fixedly connected at one end to the inclined frame (5) and at the other end to the support base (7).

7. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 6, characterized in that: The lengths of the plurality of support columns (6) gradually increase or decrease from left to right.

8. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 5, characterized in that: The included angle between the inclined frame (5) and the horizontal plane is 15°-35°.

9. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 8, characterized in that: The included angle between the inclined frame (5) and the horizontal plane is 20°.

10. The fixing device for the distributed photovoltaic module on the concrete roof according to claim 6, characterized in that: The support column (6) and the inclined frame (5) are fixedly connected through a connecting block (8); one side of the connecting block (8) is fixedly connected to the support column (6), and the other side is fixedly connected to the inclined frame (5).

Images