A high lifetime photovoltaic frame

Abstract

The utility model discloses a high -life's photovoltaic frame relates to photovoltaic frame technical field, the utility model discloses four section bars and four corner braces, and section bar includes backplate part, and the inside of backplate part is equipped with the edge of pressing, the edge of filling and bottom edge from top to bottom in proper order, and the inside between the edge of filling and bottom edge is integrally equipped with vertical edge, and the edge of pressing, backplate part and the edge of filling form the assembly installation groove between, the utility model discloses a thin plate body and corner code edge of integrated connection are designed, through setting up the pre -set sealing washer at the both surfaces of thin plate body, and sealing washer directly forms a physical sealing barrier between two section bar cutting surfaces, realized " no glue " sealing, thoroughly eliminated the water leakage hidden danger caused by the inconsistent of gluing process, perfect waterproof, also will section bar cutting surface and outside water vapor, air be thoroughly isolated, fundamentally put an end to the oxidation and electrochemistry corrosion problem of cutting surface, improved the durability and security of frame whole.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic frame technology, and in particular relates to a long-life photovoltaic frame. Background Technology

[0002] As a key component protecting photovoltaic modules, the sealing of the photovoltaic frame at its joints directly affects the internal environment, and preventing moisture intrusion is a core requirement.

[0003] Traditional photovoltaic frame profiles typically use 45° beveled cuts and joints, with independent corner brackets and bolts used for mechanical connection at the joints. To ensure waterproofing, two common methods exist: One method involves machining drainage channels and glue injection holes on the C-side of the profile (i.e. the side facing the back of the component), and then injecting silicone sealant on-site during assembly for sealing. This method heavily relies on the skills of the operators, and it is difficult to control the amount of sealant and whether it is continuous and uniform. This can easily lead to problems such as missed injections, broken sealant, and air bubbles. In addition, silicone is prone to aging, resulting in poor long-term sealing reliability.

[0004] Secondly, methods such as opening glue grooves on corner brackets and pre-installing sealing strips are adopted, but the structure is complex, the installation is inconvenient, and the protection of the cut surface of the profile is insufficient.

[0005] The cut surface (end face) of the profile is the directly exposed part. Without any surface treatment such as anodizing, in a humid environment, once the seal fails, the cut surface is very prone to electrochemical corrosion (oxidation), which not only affects the appearance, but also weakens the connection strength, poses a safety hazard, and affects the service life. Summary of the Invention

[0006] The purpose of this invention is to provide a long-life photovoltaic frame. By designing an integrally connected thin plate and corner bracket, and by setting pre-installed sealing gaskets on both surfaces of the thin plate, the sealing gaskets directly form a physical sealing barrier between the two profile cut surfaces, achieving "glue-free" sealing. This completely eliminates the risk of water leakage caused by inconsistent glue application processes. While providing perfect waterproofing, it also completely isolates the profile cut surfaces from external moisture and air, fundamentally preventing oxidation and electrochemical corrosion of the cut surfaces, and improving the overall durability and safety of the frame.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a long-life photovoltaic frame, comprising four profiles and four corner brackets; The profile includes a back plate portion, and the inner side of the back plate portion is provided with a pressing edge, a padding edge and a bottom edge from top to bottom. A vertical edge is integrally provided on the inner side between the padding edge and the bottom edge. A component mounting groove is formed between the pressing edge, the back plate portion and the padding edge, and a corner bracket mounting cavity is formed between the padding edge, the vertical edge and the back plate portion. Both the back plate and the pressing edge are double-layer hollow plate structures. The corner code includes a thin plate body, and corner code edges are provided on both surfaces of the thin plate body. The two corner code edges are distributed perpendicularly, and the angle between the corner code edges and the thin plate body is set to 45°. Both surfaces of the thin plate are laminated with sealing gaskets, and the inner side of the thin plate and the sealing gasket are integrally provided with an inner notch. The top surface of the thin plate and the sealing gasket is provided with a cut edge. The profile has 45° cuts at both ends, and four profiles form a rectangular frame. The thin plate is set between the cuts of two adjacent profiles. The corner bracket edge is interference-fitted into the corner bracket mounting cavity. The cut of the profile fits the sealing gasket. The inner notch is opposite to the component mounting groove. The cut edge is flush with the upper surface of the profile's pressing edge.

[0008] Furthermore, the back panel includes an inner panel and an outer panel, the pressing edge, padding edge and bottom edge are integrally disposed on the inner side of the inner panel, and a lower connecting edge is provided at the bottom between the outer panel and the inner panel.

[0009] Furthermore, the pressing edge includes an upper edge and a lower edge, the component mounting groove is formed by the lower edge, the pad edge and the inner plate, the upper edge is an arc-shaped edge structure, the inner side of the upper edge and the inner side of the lower edge are integrally connected, and the outer side of the upper edge is integrally connected to the top edge of the outer plate.

[0010] Furthermore, a cavity is formed between the back plate and the pressing edge, and an inner rib parallel to the length of the profile is provided in the cavity.

[0011] Furthermore, the sealing gasket is provided with a lower relief opening, and the corner bracket edge passes through the lower relief opening.

[0012] Furthermore, the connection between the inner side of the upper side and the lower side is flush with the inner side of the vertical side, and the lower connecting side is flush with the bottom side.

[0013] This utility model has the following beneficial effects: 1. This utility model, through the design of an integrally connected thin plate body and corner bracket edge, and by setting pre-installed sealing gaskets on both surfaces of the thin plate body, forms a physical sealing barrier directly between the two profile cut surfaces, achieving "glue-free" sealing. This completely eliminates the risk of water leakage caused by inconsistent glue application processes, providing perfect waterproofing while also completely isolating the profile cut surfaces from external moisture and air. This fundamentally eliminates the problems of oxidation and electrochemical corrosion of the cut surfaces, improves the overall durability and safety of the frame, ensures the waterproof reliability of the photovoltaic system throughout its entire life cycle, and extends its service life.

[0014] 2. This utility model, through the design of the inner notch, can meet the installation clearance of photovoltaic modules. For the weak part formed by the inner notch of the thin plate, the design of the double-layer back plate and pressing edge can greatly increase the effective support thickness and contact area of ​​the weak part, thereby significantly improving the overall mechanical strength and deformation resistance of the connection node, and facilitating the installation and positioning of the corner bracket.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a high-life photovoltaic frame according to the present invention; Figure 2 This is a schematic diagram of the corner code structure; Figure 3 This is a structural sectional view of the connection between two profiles; The attached diagram lists the components represented by each number as follows: 1- Profile, 2- Corner bracket, 101- Back panel, 102- Pressing edge, 103- Padding edge, 104- Bottom edge, 105- Vertical edge, 106- Inner rib, 107- Bottom edge, 108- Cut, 109- Inner panel, 110- Outer panel, 111- Bottom connecting edge, 112- Top edge, 201- Thin plate body, 202- Corner bracket edge, 203- Sealing gasket, 204- Inner notch, 205- Cut edge, 206- Bottom clearance opening. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 As shown, this utility model is a high-life photovoltaic frame, comprising four profiles 1 and four corner brackets 2; Profile 1 includes a back plate portion 101. The inner side of the back plate portion 101 is provided with a pressing edge 102, a pad edge 103 and a bottom edge 104 from top to bottom. A vertical edge 105 is integrally provided on the inner side between the pad edge 103 and the bottom edge 104. A component mounting groove is formed between the pressing edge 102, the back plate portion 101 and the pad edge 103. A corner bracket mounting cavity is formed between the pad edge 103, the vertical edge 105 and the back plate portion 101. Both the back panel 101 and the pressing edge 102 are double-layer hollow plate structures; The corner code 2 includes a thin plate body 201. Both surfaces of the thin plate body 201 are provided with corner code edges 202. The two corner code edges 202 are vertically distributed, and the angle between the corner code edges 202 and the thin plate body 201 is set to 45°. Both surfaces of the thin plate 201 are laminated with sealing gaskets 203. The inner side of the thin plate 201 and the sealing gasket 203 is integrally provided with an inner notch 204. The top surface of the thin plate 201 and the sealing gasket 203 is provided with a cut edge 205. The profile 1 has 45° cuts 108 at both ends. Four profiles 1 form a rectangular frame. The thin plate 201 is set between the cuts 108 of two adjacent profiles 1. The corner bracket edge 202 is interference-fitted in the corner bracket mounting cavity. The cuts 108 of the profile 1 fit with the sealing gasket 203. The inner notch 204 is opposite to the component mounting groove. The cut edge 205 is flush with the upper surface of the pressing edge 102 of the profile 1.

[0020] Among them, such as Figure 1 As shown, the back panel 101 includes an inner panel 109 and an outer panel 110. A pressing edge 102, a padding edge 103, and a bottom edge 104 are integrally disposed on the inner side of the inner panel 109. A lower connecting edge 111 is provided at the bottom between the outer panel 110 and the inner panel 109.

[0021] Among them, such as Figure 1 As shown, the pressing edge 102 includes an upper edge 112 and a lower edge 107. The component mounting groove is formed by the lower edge 107, the pad edge 103 and the inner plate 109. The upper edge 112 has an arc-shaped edge structure. The inner side of the upper edge 112 is integrally connected to the inner side of the lower edge 107, and the outer side of the upper edge 112 is integrally connected to the top edge of the outer plate 110.

[0022] Among them, such as Figure 1 As shown, a cavity is formed between the back plate portion 101 and the pressing edge 102, and an inner rib 106 parallel to the length of the profile 1 is provided in the cavity.

[0023] Among them, such as Figure 2-3 As shown, the sealing gasket 203 is provided with a lower clearance opening 206, and the corner bracket edge 202 passes through the lower clearance opening 206.

[0024] Among them, such as Figure 1 As shown, the connection between the inner side of the upper edge 112 and the lower edge 107 is flush with the inner side of the vertical edge 105, and the lower connecting edge 111 is flush with the bottom edge 104.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A long-life photovoltaic frame, comprising four profiles (1) and four corner brackets (2), characterized in that: The profile (1) includes a back plate (101). The back plate (101) has a pressing edge (102), a pad edge (103), and a bottom edge (104) arranged sequentially from top to bottom on its inner side. A vertical edge (105) is integrally provided on the inner side between the pad edge (103) and the bottom edge (104). A component mounting groove is formed between the pressing edge (102), the back plate (101), and the pad edge (103). An angle bracket mounting cavity is formed between the pad edge (103), the vertical edge (105), the vertical edge (105), and the back plate (101). Both the back plate (101) and the pressing edge (102) are double-layer hollow plate structures; The corner code (2) includes a thin plate (201), and corner code edges (202) are provided on both surfaces of the thin plate (201). The two corner code edges (202) are vertically distributed, and the angle between the corner code edge (202) and the thin plate (201) is set to 45°. Both surfaces of the thin plate (201) are coated with sealing gaskets (203), and the inner sides of the thin plate (201) and the sealing gaskets (203) are integrally provided with inner notches (204), and the top surfaces of the thin plate (201) and the sealing gaskets (203) are provided with cut edges (205). The profile (1) has 45° cuts (108) at both ends. Four profiles (1) form a rectangular frame. The thin plate (201) is set between the cuts (108) of two adjacent profiles (1). The corner bracket edge (202) is interference-fitted into the corner bracket mounting cavity. The cut (108) of the profile (1) fits with the sealing gasket (203). The inner notch (204) is opposite to the component mounting groove. The cut edge (205) is flush with the upper surface of the pressing edge (102) of the profile (1).

2. The long-life photovoltaic frame according to claim 1, characterized in that, The back panel (101) includes an inner panel (109) and an outer panel (110). The pressing edge (102), padding edge (103) and bottom edge (104) are integrally disposed on the inner side of the inner panel (109). A lower connecting edge (111) is provided at the bottom between the outer panel (110) and the inner panel (109).

3. The long-life photovoltaic frame according to claim 2, characterized in that, The pressing edge (102) includes an upper edge (112) and a lower edge (107). The component mounting groove is formed by the lower edge (107), the pad edge (103) and the inner plate (109). The upper edge (112) is an arc-shaped edge structure. The inner side of the upper edge (112) and the inner side of the lower edge (107) are integrally connected. The outer side of the upper edge (112) is integrally connected to the top edge of the outer plate (110).

4. A high-lifespan photovoltaic frame according to claim 3, characterized in that, A cavity is formed between the back plate portion (101) and the pressing edge (102), and an inner rib (106) parallel to the length of the profile (1) is provided in the cavity.

5. A high-lifespan photovoltaic frame according to claim 1, characterized in that, The sealing gasket (203) is provided with a lower relief opening (206), and the corner bracket edge (202) passes through the lower relief opening (206).

6. A high-lifespan photovoltaic frame according to claim 3, characterized in that, The connection between the inner side of the upper side (112) and the lower side (107) is flush with the inner side of the vertical side (105), and the lower connecting side (111) is flush with the bottom side (104).

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