High-fire-resistance and high-reliability light component

Abstract

The utility model discloses a light component with high fire resistance and high reliability. The battery module comprises a composite front plate on the top layer, a flame-retardant bottom plate on the bottom layer and a battery module between the composite front plate and the flame-retardant bottom plate, the battery module is bonded with the composite front plate through an upper adhesive film layer, and the battery module is bonded with the flame-retardant bottom plate through a lower adhesive film layer. The flame-retardant bottom plate is formed by laminating and laying a fluorine coating, a PET base material layer, an aerogel film layer and a second fluorine coating from top to bottom. The utility model has the advantages that through the multi-layer structural design of the fluorine coating, the PET base material layer, the aerogel film layer and the second fluorine coating, the fluorine coating and the aerogel film layer have excellent flame-retardant characteristics, fire spreading can be effectively inhibited, the fire risk of the assembly under a high-temperature condition is reduced, the PET base material layer provides good mechanical strength and stability, and the service life of the assembly is prolonged. And in combination with optimized combination of multiple layers of materials, the flame-retardant bottom plate has high deformation resistance, the overall safety is improved, and the long-term use requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar photovoltaic module technical field especially is related to a high fire resistance high reliability lightweight assembly. BACKGROUND

[0002] With the popularization of solar photovoltaic technology, solar modules are increasingly widely used in the fields of construction and household, but their safety problems are gradually highlighted. In the fire situation, the module may release harmful gases due to the burning of the backboard material, increasing the risk of the environment and personnel. Especially in special building scenarios, if the fireproof performance of the backboard material is insufficient, it may become a fire source, causing fire hazards.

[0003] The fireproof performance of the existing solar module mainly depends on the glass front plate and the backboard, but such structure is heavy in weight and is difficult to meet the lightweight demand. The flexible module mostly uses a polymer composite backboard, and its flame retardant properties are uneven, which is an important factor affecting the overall fireproof performance of the module. At the same time, the photovoltaic module is easily blocked by flying birds, dust and fallen leaves in use, forming local shadows and causing hot spot effect. This effect causes the shaded area to overheat, with a temperature that may exceed 100 degrees Celsius, further increasing the fire risk. In view of the above, developing a solar module with high fire resistance and lightweight, optimizing the design of the backboard material and the overall structure, and improving its safety and reliability are technical problems to be solved in the photovoltaic industry. SUMMARY

[0004] The utility model wants to solve the technical problem of providing a lightweight assembly with high fire resistance and high reliability.

[0005] In order to solve the above technical problem, the high fire resistance and high reliability lightweight assembly of the utility model, including the composite front plate of top layer, the fireproof bottom plate of bottom layer and the battery module between the composite front plate and the fireproof bottom plate, the battery module is bonded with the composite front plate through the upper layer of adhesive film layer, the battery module is bonded with the fireproof bottom plate through the lower layer of adhesive film layer, the fireproof bottom plate adopts fluorine coating layer, PET substrate layer, aerogel film layer, second fluorine coating layer from top to bottom.

[0006] The composite front plate adopts ETFE material layer, POE material layer, KPF material layer from top to bottom.

[0007] The composite front plate of top layer, the upper layer of adhesive film layer, the battery module, the lower layer of adhesive film layer and the fireproof bottom plate of bottom layer form the high fire resistance and high reliability lightweight assembly main body in turn, and the peripheral edge of the high fire resistance and high reliability lightweight assembly main body is provided with a frame.

[0008] The material of the upper layer of adhesive film layer uses EVA or EPE.

[0009] The material of the lower layer of adhesive film layer uses EVA or EPE.

[0010] The material of the lower adhesive film layer uses POE, and the thickness is 0.40mm~0.70mm.

[0011] The battery type of the battery module is a perc battery or a topcon battery.

[0012] The material of the frame is steel or alloy.

[0013] The advantages of the utility model are:

[0014] (1) the fireproof bottom plate passes through the multilayer structure design of fluorine coating layer, PET base material layer, aerogel film layer and second fluorine coating layer, and the fluorine coating layer and aerogel film layer have excellent fire retardant characteristics, can effectively inhibit the spread of fire, reduce the fire risk of assembly under high temperature conditions, and the PET base material layer provides good mechanical strength and stability, and the optimized combination of multilayer materials makes the fireproof bottom plate have strong deformation resistance, improves the overall safety and meets long-term use demand.

[0015] (2) the composite front plate adopts the multilayer structure design of ETFE material layer, POE material layer and KPF material layer, the ETFE material layer provides good light transmission performance and ultraviolet resistance, effectively improves the power generation efficiency of photovoltaic assembly, the KPF material layer provides high mechanical strength, and the POE material layer makes the thermal expansion performance of the front plate consistent with other packaging materials, improves the power generation efficiency of photovoltaic assembly and improves weather resistance.

[0016] (3) the light weight material such as PET, aerogel and fluorine film is used to replace the traditional glass back plate, and the design of glass as the front plate is also cancelled, so that the assembly weight is reduced, the installation convenience is improved, and a kind of photovoltaic assembly with light weight and weak rigidity is achieved to a certain extent. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic view of the high fire resistance high reliability light weight assembly of the utility model;

[0018] Figure 2 It is the composite front plate structure schematic view of the high fire resistance high reliability light weight assembly of the utility model;

[0019] Figure 3 It is the fireproof bottom plate structure schematic view of the high fire resistance high reliability light weight assembly of the utility model. DETAILED DESCRIPTION

[0020] The high fire resistance high reliability light weight assembly of the utility model will be further explained in detail in combination with the drawings and specific embodiments. EMBODIMENT

[0021] The high-fire-resistance high-reliability lightweight assembly includes a top composite front plate 1, a bottom fire-retardant bottom plate 5, and a battery module 3 between the composite front plate 1 and the fire-retardant bottom plate 5, the battery type of the battery module 3 is a 182*182mm size perc battery or a 182*182mm size topcon battery, and the battery composition includes but is not limited to series welding and shingle; the battery module 3 is bonded to the composite front plate 1 through an upper adhesive film layer 2, the material of the upper adhesive film layer 2 uses EVA or EPE, the material of a lower adhesive film layer 4 uses EVA or EPE, when the type of the lower adhesive film layer 4 is POE, the thickness of the lower adhesive film layer 4 is 0.40mm~0.70mm, and the optimal thickness is 0.55mm; the battery module 3 is bonded to the fire-retardant bottom plate 5 through the lower adhesive film layer 4, the composite front plate 1 is stacked and laid from top to bottom with an ETFE material layer 7, a POE material layer 8, and a KPF material layer 9, which have good light transmittance and ultraviolet resistance and also provide certain mechanical strength; the fire-retardant bottom plate 5 is stacked and laid from top to bottom with a fluorine coating layer 10, a PET substrate layer 11, an aerogel film layer 12, and a second fluorine coating layer 13; the top composite front plate 1, the upper adhesive film layer 2, the battery module 3, the lower adhesive film layer 4, and the bottom fire-retardant bottom plate 5 are sequentially stacked to form a high-fire-resistance high-reliability lightweight assembly main body, a frame 6 is arranged at the peripheral edge of the high-fire-resistance high-reliability lightweight assembly main body, the material of the frame 6 can be steel, aluminum, or alloy, which is used to encapsulate batteries, glass, back plates, and other materials and enhance the strength of the assembly to facilitate transportation, installation, and protection of the photovoltaic assembly.

Claims

1. A lightweight component with high fire resistance and high reliability, characterized in that: The battery module (3) includes a top composite front panel (1), a bottom flame-retardant base plate (5), and a battery module (3) between the composite front panel (1) and the flame-retardant base plate (5). The top surface of the battery module (3) is bonded to the composite front panel (1) through an upper adhesive film layer (2), and the bottom surface of the battery module (3) is bonded to the flame-retardant base plate (5) through a lower adhesive film layer (4). The flame-retardant base plate (5) is made of a fluorine coating (10), a PET substrate layer (11), an aerogel film layer (12), and a second fluorine coating (13) layered from top to bottom.

2. The high fire resistance and high reliability lightweight component according to claim 1, characterized in that: The composite front panel (1) is made of ETFE material layer (7), POE material layer (8) and KPF material layer (9) layered from top to bottom.

3. The high fire resistance and high reliability lightweight component according to claim 2, characterized in that: The top composite front panel (1), upper adhesive film layer (2), battery module (3), lower adhesive film layer (4) and bottom flame-retardant base plate (5) are stacked in sequence to form a high fire-resistant, high-reliability, lightweight component body, and the outer edge of the high fire-resistant, high-reliability, lightweight component body is covered with a frame (6).

4. The high fire resistance and high reliability lightweight component according to claim 3, characterized in that: The upper film layer (2) is made of EVA or EPE.

5. The high fire resistance, high reliability, and lightweight component according to claim 4, characterized in that: The battery module (3) uses either a PERC battery or a TOPCON battery.

6. The high fire resistance, high reliability, and lightweight component according to claim 4, characterized in that: The lower adhesive film layer (4) is made of EVA or EPE.

7. The high fire resistance and high reliability lightweight component according to claim 6, characterized in that: The lower adhesive film layer (4) is made of POE and has a thickness of 0.40 mm to 0.70 mm.

8. The high fire resistance, high reliability, and lightweight component according to claim 3, characterized in that: The frame (6) is made of steel or alloy.

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