Novel ring groove rivet for installing photovoltaic support

Abstract

The utility model discloses a novel ring groove rivet for photovoltaic support installation, which comprises a rivet body and a rivet sleeve, the rivet body is composed of a rivet head and a rivet rod, the rivet body is used for connecting a purline and a photovoltaic assembly frame, the rivet rod is arranged in an installation hole of the photovoltaic assembly frame in a penetrating mode, and the rivet sleeve is sleeved on the rivet head. The rivet head is in contact with the surface of the photovoltaic module frame, and the rivet rod is provided with a threaded section connected with the rivet sleeve; wherein the two ends of the nail head are arc sections, the parts, connected with the arc sections, of the two sides of the nail head are straight sections, the diameter of the arc sections at the two ends of the nail head is smaller than the width of the photovoltaic module frame, and the length of the straight sections at the two sides of the nail head is larger than the width of the photovoltaic module frame. According to the utility model, the installation speed can be greatly improved, the photovoltaic module frame is not easy to loosen in the later period, the contact area of the photovoltaic module frame is increased, and the risk that the module is torn under the condition of strong wind is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic bracket installation technology, and in particular relates to a novel ring groove rivet for photovoltaic bracket installation. Background Technology

[0002] As the new energy industry continues to develop and the energy structure continues to be optimized, the proportion of new clean energy, mainly represented by photovoltaic power generation, is increasing. Among them, photovoltaic module installation, as an important step in the construction of photovoltaic power plants, is related to a large amount of engineering costs and affects the overall project schedule. It has now become a breakthrough point for cost reduction and speed-up in power plant construction.

[0003] Currently, almost all photovoltaic (PV) module installations involve placing the PV modules on purlins of a PV support system and then connecting them with bolts. The purlin structure varies depending on the type of support system, including "U"-shaped purlins and "C"-shaped purlins. Long oval holes are pre-drilled at appropriate locations on the purlins. During installation, the PV modules are placed against the purlins, and corresponding long oval holes are also pre-drilled on the module's frame. Bolts are then used to tighten the holes. After installation, the PV modules are the components most directly subjected to wind loads and are susceptible to wind vibration, which can cause bolts to loosen. To prevent this, fastener kits such as two nuts or anti-loosening washers are typically used. Furthermore, wind loads can easily cause the module frame to tear. To increase the contact area between the bolts and the module frame, large flat washers or custom-made, larger-area washers are also needed. To meet the grounding requirements of the PV modules, wires are used to connect them, and the modules are ultimately grounded through a grounding wire installed on the PV support system.

[0004] The following problems exist in the current installation of photovoltaic modules:

[0005] (1) There are many installation parts, which are not easy to distinguish, are small in size, and are easy to lose, resulting in additional economic losses on site. Furthermore, under the installation of inexperienced workers, it is easy to have non-standard installation, which poses a safety hazard.

[0006] (2) The installation speed is slow. Bolt installation requires the fasteners to be fixed and then tightened with a wrench. It takes about 2 minutes per component. As long as bolt installation is used, the difference in installation speed is not significant regardless of the installer's skill level or the tools used.

[0007] (3) The bolts are prone to loosening in the later stage. Large-scale ground photovoltaic power stations are located in the field, and the wind load is usually large. The photovoltaic modules are the first components to be affected by the wind, and they are easily affected by wind vibration, which can lead to loosening of the bolts. In the later stage of the project, the modules may be loosened, resulting in economic losses.

[0008] (4) The frame of photovoltaic modules is easily torn. When using traditional bolt installation, the contact area between the bolt head and the frame of the module is limited, resulting in serious stress concentration. When exposed to strong winds, the module is at risk of tearing. Utility Model Content

[0009] The purpose of this invention is to overcome the defects of the prior art by providing a new type of ring groove rivet for photovoltaic bracket installation, which can significantly improve the installation speed and is not easy to loosen later. At the same time, it increases the contact area of ​​the photovoltaic module frame and reduces the risk of the module being torn in strong winds.

[0010] The objective of this utility model is achieved through the following technical solution:

[0011] A novel ring groove rivet for photovoltaic bracket installation includes a rivet body and a rivet sleeve. The rivet body consists of a rivet head and a rivet shank. The rivet body is used to connect the purlin and the photovoltaic module frame. The rivet shank passes through the mounting hole of the photovoltaic module frame. The rivet head contacts the surface of the photovoltaic module frame. The rivet shank has a threaded section that connects to the rivet sleeve.

[0012] The nail head has two arc segments at both ends, and the part connecting the arc segments on both sides of the nail head is a straight segment. The diameter of the arc segments at both ends of the nail head is smaller than the width of the photovoltaic module frame, and the length of the straight segment on both sides of the nail head is greater than the width of the photovoltaic module frame.

[0013] In one embodiment, the straight segments located on both sides of the nail head extend in mutually parallel directions.

[0014] In one embodiment, the connection between the nail head and the nail shank is provided with a rounded corner.

[0015] In one embodiment, the nail head is further provided with a plurality of conductive protrusions on the side near the nail shank.

[0016] In one embodiment, a plurality of the conductive protrusions are evenly distributed along the circumference of the nail shank on the side of the nail head.

[0017] In one embodiment, both the rivet body and the rivet sleeve are made of aluminum alloy.

[0018] In one embodiment, the line connecting two adjacent conductive protrusions to the center of the nail rod is perpendicular to each other.

[0019] The beneficial effects of this utility model are as follows:

[0020] Using grooved rivets in photovoltaic bracket installation increases the contact area between the rivet head and the photovoltaic module frame. The straight section of the rivet head restricts its rotation on the photovoltaic module frame, reducing the number of accessories required during photovoltaic bracket installation. There is no need to fix the rivet head during installation, avoiding safety hazards caused by too many accessories. At the same time, it can significantly improve the installation speed and is not easy to loosen later. In addition, the increased contact area of ​​the photovoltaic module frame reduces the risk of the module being torn in strong winds. Attached Figure Description

[0021] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0022] in:

[0023] Figure 1 This diagram shows the structure of the present invention during installation.

[0024] Figure 2 A schematic diagram of the rivet body of this utility model is shown;

[0025] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0026] Figure label:

[0027] 100-Rivet body, 1-Rivet head, 2-Rivet shank, 3-Photovoltaic module frame, 4-Mounting hole, 5-Rounded corner, 6-Conductive protrusion, 101-Straight section, 102-Arc section, 201-Threaded section. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] This utility model provides a novel ring groove rivet for photovoltaic bracket installation, such as... Figure 1 and Figure 2 As shown, it includes a rivet body 100 and a rivet sleeve. The rivet body 100 is composed of a rivet head 1 and a rivet shank 2. The rivet body 100 is used to connect the purlin and the photovoltaic module frame 3. The rivet shank 2 passes through the mounting hole 4 of the photovoltaic module frame 3. The rivet head 1 is in contact with the surface of the photovoltaic module frame 3. The rivet shank 2 has a threaded section 201 that connects to the rivet sleeve.

[0030] Among them, the two ends of the nail head 1 are arc segments 102, and the part connecting the arc segments 102 on both sides of the nail head 1 is a straight segment 101. The diameter of the arc segments 102 at both ends of the nail head 1 is smaller than the width of the photovoltaic module frame 3, and the length of the straight segments 101 on both sides of the nail head 1 is greater than the width of the photovoltaic module frame 3.

[0031] It should be noted that, as Figure 1As shown, in the current photovoltaic (PV) bracket installation process, PV modules are installed on purlins and then connected by bolts. Corresponding mounting holes 4 are provided on the purlins and the PV module frame 3. The mounting holes 4 are elongated oval structures. Due to the limited size of the PV module frame 3, the structural strength at the mounting hole 4 is relatively weak. Furthermore, due to interference from its sidewalls, the contact area between conventional bolts and the PV module frame 3 is limited, requiring the addition of large washers and other accessories, increasing the number of accessories and affecting the installation speed. In this embodiment, however, a method is used... Figure 2 The grooved rivet shown has its rivet body 100 inserted into the mounting hole 4. Installation is completed by pressing the rivet sleeve onto the rivet body 100, which greatly reduces the accessories required during installation and improves installation efficiency. At the same time, the structural design of the rivet head 1 restricts its rotation angle during the pressing of the rivet sleeve, so that the rivet head 1 does not need to be fixed during installation, which further facilitates the installation by workers. In addition, compared with conventional bolts, it increases the contact area with the photovoltaic module frame 3, reducing the risk of the photovoltaic module frame 3 being torn.

[0032] Specifically, the straight sections 101 located on both sides of the nail head 1 extend in mutually parallel directions, i.e. Figure 1 and Figure 2 As shown, the straight sections 101 on both sides of the rivet head 1 are parallel to each other, which facilitates processing, transportation and manufacturing, and at the same time makes it easier to maximize the contact area between the rivet and the photovoltaic module frame 3.

[0033] In one embodiment, such as Figure 2 As shown, a rounded corner 5 is provided at the connection between the nail head 1 and the nail shank 2, which avoids excessive stress on the rivet body 100 and tearing, thus further improving safety.

[0034] In one embodiment, the nail head 1 is provided with a plurality of conductive protrusions 6 on the side near the nail rod 2. That is, the conductive protrusions 6 can pierce the galvanized protective layer of the purlin and the photovoltaic module frame 3 during the installation of the rivet body 100, and directly make conductive connection between the photovoltaic module frame 3 and the purlin, without the need to install additional metal wires, further saving installation costs and improving installation speed.

[0035] In one embodiment, multiple conductive protrusions 6 are evenly distributed along the circumference of the nail shank 2 on the side of the nail head 1, such as... Figure 2 As shown, four conductive protrusions 6 are provided on the side of the nail head 1, and the line connecting two adjacent conductive protrusions 6 to the center of the nail rod 2 is perpendicular to each other. That is, by the arrangement of the conductive protrusions 6, the number of conductive protrusions 6 is reduced while ensuring the conductivity effect.

[0036] In one embodiment, both the rivet body 100 and the rivet sleeve are made of aluminum alloy. During the processing, the cylindrical aluminum alloy steel bar is stamped, and after obtaining the circular rivet head 1, its two sides are cut to obtain the straight section 101 of the rivet head 1, which facilitates processing.

[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A novel ring groove rivet for photovoltaic bracket installation, characterized in that, The rivet includes a rivet body and a rivet sleeve. The rivet body consists of a rivet head and a rivet shank. The rivet body is used to connect the purlin and the photovoltaic module frame. The rivet shank passes through the mounting hole of the photovoltaic module frame. The rivet head contacts the surface of the photovoltaic module frame. The rivet shank has a threaded section that connects to the rivet sleeve. The nail head has two arc segments at both ends, and the part connecting the arc segments on both sides of the nail head is a straight segment. The diameter of the arc segments at both ends of the nail head is smaller than the width of the photovoltaic module frame, and the length of the straight segment on both sides of the nail head is greater than the width of the photovoltaic module frame.

2. The novel ring groove rivet for photovoltaic bracket installation according to claim 1, characterized in that, The straight sections located on both sides of the nail head extend in mutually parallel directions.

3. The novel ring groove rivet for photovoltaic bracket installation according to claim 1, characterized in that, The connection between the nail head and the nail rod is provided with a rounded corner.

4. The novel ring groove rivet for photovoltaic bracket installation according to claim 1, characterized in that, The nail head is also provided with multiple conductive protrusions on the side near the nail rod.

5. A novel ring groove rivet for photovoltaic bracket installation according to claim 4, characterized in that, Multiple conductive protrusions are evenly distributed along the circumference of the nail shank on the side of the nail head.

6. A novel ring groove rivet for photovoltaic bracket installation according to claim 1, characterized in that, Both the rivet body and the rivet sleeve are made of aluminum alloy.

7. A novel ring groove rivet for photovoltaic bracket installation according to claim 5, characterized in that, The lines connecting two adjacent conductive protrusions to the center of the nail rod are perpendicular to each other.

Images