Photovoltaic waterproof system used for low-gradient roof

Abstract

A photovoltaic waterproof system used for a low-gradient roof comprises a supporting structure, sealing strips and flow guide strips. The supporting structure is composed of multiple section bars. Each section bar comprises a section bar body and clamping hooks on the section bar body. Each sealing strip is arranged between the two corresponding section bar bodies. Each sealing strip comprises a plunger and a first umbrella sheet kept being connected with the two corresponding section bar bodies in an abutting manner. A second umbrella sheet of a V-shaped structure is further arranged on eachplunger. The edge of each second umbrella sheet is connected with the corresponding section bar bodies in an abutting manner, and a first flow guide groove is formed among each plunger, the corresponding second umbrella sheet and the corresponding section bar body. Each flow guide strip is arranged on the end portion of the corresponding sealing strip. When rainwater seeps in the photovoltaic waterproof system, because the second umbrella sheets are connected with the section bar bodies in the abutting manner, water seeping into every two corresponding section bar bodies is guided through thecorresponding first flow guide grooves to flow into the corresponding flow guide strips, the first flow guide grooves formed through the sealing strips are more convenient to implement, and the construction quantity of supporting structure laying is decreased. The flow guide strips arranged on the end portions of the sealing strips can converge the water flowing out of the sealing strips togetherand guide the water to be discharged out of the roof.

Description

technical field [0001] The invention relates to the field of photovoltaic systems, in particular to a photovoltaic waterproof system for low-slope roofs. Background technique [0002] With the rapid development of technology, photovoltaic systems can now be directly used as building materials to act as roofs, which can reduce the overall cost. However, the problem to be solved is how to make photovoltaic modules truly become a part of building materials and meet the requirements of building waterproof performance. [0003] The Chinese patent document with the application number CN201811211834.1 discloses a horizontal waterproof structure for a photovoltaic waterproof system, including: two opposite profiles, the profiles are used to support the laminate of the photovoltaic waterproof system; waterproof adhesive strips , a waterproof rubber strip is clamped on each profile, and the waterproof rubber strip includes: a rubber strip body with a U-shaped cross section; The wate...

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Problems solved by technology

[0004] In the above technical solution, horizontal waterproofing between components, waterproof strips and waterproof sheets interact to effectively ensure the overall installation of the system on the premise of waterproofing. However, in actual use, especially on low-slope roofs In practice, due to the low slope of the roof, the drainage of rainwater on the roof is slow, and water accumulation will occur on the roof, and the waterproof rubber strip will leak when soaked in water, resulting in water leakage on the roof. There is an improvement in the existing technology place

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