An assembled waterproof photovoltaic integrated roof

By splicing photovoltaic unit modules arranged in a matrix and hiding the strip water guide grooves, the aesthetic and waterproof issues of the BIPV roof drainage system are solved, the wind resistance is improved, and effective rainwater drainage is achieved.

CN119582720BActive Publication Date: 2025-09-23TRIUMPH PHOTOVOLTAIC MATERIAL CO LTD
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Patent Information

Application Number
CN202411669001.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-09-23
Estimated Expiration
2044-11-21

AI Technical Summary

Technical Problem

The existing BIPV roof drainage system has an unsightly external design and suffers from water leakage and backflow problems, requiring additional blocking measures. The exposed water troughs are prone to water accumulation and damage to photovoltaic modules.

Method used

It uses multiple photovoltaic unit modules arranged in a matrix, with the U-shaped notch facing backward. A strip-shaped water guide groove running through the notch is provided on the right side of each module. The notch is hidden when the modules are spliced. The front of the module is a two-step stepped surface. When spliced ​​longitudinally, the upper module covers the top of the lower module. When spliced ​​horizontally, the notch is covered to form a small gap flow channel, and rainwater is discharged through the groove.

Benefits of technology

A hidden and beautiful drainage system is achieved, which avoids water leakage and backflow, improves wind resistance, is easy to install and effectively prevents rainwater accumulation.

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Abstract

The present invention discloses an assembled waterproof photovoltaic integrated roof, which is formed by splicing a plurality of photovoltaic unit modules arranged in a matrix. Each photovoltaic unit module is a U-shaped plate structure with a U-shaped notch facing backward. A strip water guide groove, an upper slot, and a lower slot are provided on the right parallel portion of the photovoltaic unit module. When the plurality of photovoltaic unit modules are spliced ​​together, the bottom of the upper photovoltaic unit module completely covers the top of the lower photovoltaic unit module. The strip water guide grooves of the upper and lower photovoltaic unit modules partially overlap. The lower slots and upper slots of the upper and lower photovoltaic unit modules are plugged into each other. The left parallel portion of the right photovoltaic unit module extends into the strip water guide groove of the left photovoltaic unit module, so that the right photovoltaic unit module covers the notch of the strip water guide groove of the left photovoltaic unit module. After the plurality of photovoltaic unit modules of the present invention are spliced ​​together, the strip water guide groove is hidden, which is beautiful and neat, effectively avoids water leakage and backflow problems, and has good wind-proof ability.
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Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic roof components, in particular to an assembled waterproof photovoltaic integrated roof. Background Art

[0002] BIPV stands for Building Integrated Photovoltaic, which is a technology that integrates solar power generation (photovoltaic) products into buildings.

[0003] With society's growing emphasis on renewable energy, BIPV is gaining widespread adoption. However, existing BIPV roof drainage systems lack aesthetic appeal due to their external gutter design and lack of structural waterproofing. During installation, these systems must be combined with other containment measures to prevent leaks and backflow. Furthermore, the exposed gutter can accumulate water at the bottom when connected, and this accumulated rainwater can easily damage photovoltaic panels. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an assembled waterproof photovoltaic integrated roof. After multiple photovoltaic unit modules arranged in a matrix are spliced ​​together, the strip-shaped water guide grooves are hidden, which is beautiful and neat, and effectively avoids leakage and backflow problems, and has good wind resistance.

[0005] The technical solution of the present invention is:

[0006] An assembled waterproof photovoltaic integrated roof is formed by splicing a plurality of photovoltaic unit modules arranged in a matrix. Each photovoltaic unit module is a U-shaped plate structure with a U-shaped notch facing backward. A strip-shaped water guide groove that runs through the top and bottom of the photovoltaic unit module is provided on the front end surface of the right parallel portion of the photovoltaic unit module. An upper slot and a lower slot are provided on the right parallel portion of the photovoltaic unit module and on the side of the strip-shaped water guide groove. The upper slot is adjacent to the top of the photovoltaic unit module with the notch facing upward, and the lower slot is provided at the bottom of the photovoltaic unit module with the notch facing downward.

[0007] The front of the photovoltaic unit module is a two-step stepped surface, that is, a first step surface facing upward is formed between the middle and bottom of the photovoltaic unit module, and a second step surface facing upward is formed between the middle and top. A row of screw locking holes running through the top of the photovoltaic unit module is provided. A cell embedding groove is provided in the middle of the photovoltaic unit module, and the photovoltaic cell is embedded in the cell embedding groove. The left side of the photovoltaic unit module and the left groove surface of the strip water guide groove are both first-step stepped surfaces. The step surface on the left side of the photovoltaic unit module and the step surface on the left side of the strip water guide groove are both upward and at the same height, and both are lower than the horizontal height of the second step surface.

[0008] The right groove surface of the strip-shaped water guide groove is also a stepped surface, with the step surface on the right side of the strip-shaped water guide groove facing upward, so that the width of the groove at the top of the strip-shaped water guide groove is not less than the width of the bottom end of the parallel portion on the right side of the photovoltaic unit module;

[0009] When two longitudinally adjacent photovoltaic unit modules are vertically spliced, the bottom of the upper photovoltaic unit module completely covers the top of the lower photovoltaic unit module, the right parallel portion of the upper photovoltaic unit module partially extends into the strip water guide groove of the lower photovoltaic unit module, the portion between the upper slot and the strip water guide groove of the lower photovoltaic unit module is inserted into the lower slot of the upper photovoltaic unit module with a clearance fit, and the portion of the upper photovoltaic unit module located on the left side of the lower slot is inserted into the upper slot of the lower photovoltaic unit module with a clearance fit;

[0010] When two laterally adjacent photovoltaic unit modules are spliced, the left parallel portion of the right photovoltaic unit module extends into the strip water guide groove of the left photovoltaic unit module, and the left parallel portion of the left photovoltaic unit module is adjacent to the left groove wall of the strip water guide groove of the right photovoltaic unit module, so that the right photovoltaic unit module covers the groove opening of the strip water guide groove of the left photovoltaic unit module.

[0011] When the two longitudinally adjacent photovoltaic unit modules are vertically spliced, the horizontal height of the top of the lower photovoltaic unit module is lower than the horizontal height of the bottom of the lower slot of the upper photovoltaic unit module.

[0012] The bottom end of the upper slot is lower than the level of the left step surface of the strip water guide groove, and the bottom end of the upper slot is connected to the inside of the strip water guide groove through the opening on the left groove surface of the strip water guide groove.

[0013] When the two longitudinally adjacent photovoltaic unit modules are vertically spliced, the outer side surface of the right parallel portion of the upper photovoltaic unit module is in close contact with the right groove surface of the strip-shaped water guide groove of the lower photovoltaic unit module.

[0014] Advantages of the present invention:

[0015] (1) The photovoltaic unit module of the present invention is a U-shaped plate structure with the U-shaped notch facing backward, and a strip water guide groove with the notch facing forward is provided on the parallel portion on the right side of the photovoltaic unit module. When two laterally adjacent photovoltaic unit modules are spliced, the left parallel portion of the right photovoltaic unit module and the strip water guide groove of the left photovoltaic unit module are handshake-jointed, so that the right photovoltaic unit module covers the notch of the strip water guide groove of the left photovoltaic unit module, making the strip water guide groove hidden, beautiful and neat.

[0016] (2) The front surface of the photovoltaic unit module of the present invention is a two-step stepped surface, so that when two longitudinally adjacent photovoltaic unit modules are vertically spliced, the bottom of the upper photovoltaic unit module is completely covered on the top of the lower photovoltaic unit module, thereby blocking a row of screw locking holes on the top of the lower photovoltaic unit module, avoiding the problem of water leakage in the screw locking holes, and the right parallel portion of the upper photovoltaic unit module partially extends into the strip water guide groove of the lower photovoltaic unit module, so that the joints of the strip water guide grooves of the upper and lower photovoltaic unit modules partially overlap, realizing a tight overlap of the strip water guide grooves in the longitudinal direction.

[0017] (3) The present invention sets an upper slot and a lower slot on the right parallel part of the photovoltaic unit module. When two longitudinally adjacent photovoltaic unit modules are vertically spliced, the lower slot of the upper photovoltaic unit module and the upper slot of the lower photovoltaic unit module are plugged into each other, thereby realizing accurate positioning and plugging of the two longitudinally adjacent photovoltaic unit modules.

[0018] (4) In the present invention, when two laterally adjacent photovoltaic unit modules are spliced, the left parallel portion of the left photovoltaic unit module is adjacent to the left groove wall of the strip water guide groove of the right photovoltaic unit module, and a small gap flow channel is formed between the left parallel portion of the left photovoltaic unit module and the left groove wall of the strip water guide groove of the right photovoltaic unit module. When it rains, rainwater will fall into the small gap flow channel between the two, and the rainwater will flow down along the small gap flow channel. In the case of strong winds, the small trickle of rainwater left in the small gap flow channel will flow back and enter the lower slot of the upper photovoltaic unit module, and flow into the upper slot of the lower photovoltaic unit module along the gap at the joint of the upper slot and the lower slot. Therefore, the bottom end of the upper slot is connected to the inside of the strip water guide groove through the opening on the left groove surface of the strip water guide groove, so that the rainwater entering the upper slot is discharged into the inside of the strip water guide groove through the opening, thereby preventing the rainwater from being deposited in the upper slot and the lower slot.

[0019] (5) The present invention is easy to install and can be installed from bottom to top. The bottom of the upper photovoltaic unit module is completely covered on the top of the lower photovoltaic unit module, so that the upward force of wind can be dispersed to the longitudinal joints of multiple photovoltaic unit modules, effectively improving the roof's wind resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the photovoltaic unit module of the present invention.

[0021] Figure 2 This is a front view of the photovoltaic unit module of the present invention.

[0022] Figure 3 This is the main axonometric view of the four photovoltaic unit modules arranged in a matrix after splicing.

[0023] Figure 4 yes Figure 3Enlarged view of part A in .

[0024] Figure 5 It is a cross-sectional view of the right parallel portion of the photovoltaic unit module of the present invention.

[0025] Figure 6 An axial cross-sectional view of the central joint of four photovoltaic unit modules arranged in a matrix according to the present invention.

[0026] Figure markings: 1-photovoltaic unit module, 2-strip water guide groove, 3-upper slot, 4-lower slot, 5-opening on the left groove surface of the strip water guide groove, 6-screw locking hole, 7-photovoltaic cell, 8-small gap flow channel, 11-top of the photovoltaic unit module, 12-middle of the photovoltaic unit module, 13-bottom of the photovoltaic unit module, 14-first step surface, 15-second step surface, 16-step surface on the left side of the photovoltaic unit module, 17-step surface on the left side of the strip water guide groove. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See Figures 1-6 , an assembled waterproof photovoltaic integrated roof is composed of a plurality of photovoltaic unit modules 1 arranged in a matrix, each photovoltaic unit module is a U-shaped plate structure with a U-shaped notch facing backward, the left parallel part of the photovoltaic unit module 1 is a plate-shaped structure, and the right parallel part of the photovoltaic unit module 1 is a strip-shaped block structure. A strip-shaped water guide groove 2 that runs through the top and bottom of the photovoltaic unit module 1 is opened on the front end surface of the right parallel part of the photovoltaic unit module 1, and an upper slot 3 and a lower slot 4 are arranged on the right parallel part of the photovoltaic unit module 1 and on the side of the strip water guide groove. The upper slot 3 is adjacent to the top of the photovoltaic unit module 1 and the notch faces upward, and the bottom end of the upper slot 3 is connected to the inside of the strip water guide groove 2 through an opening 5 on the left groove surface of the strip water guide groove 2, and the lower slot 4 is arranged at the bottom end of the photovoltaic unit module 1 and the notch faces downward;

[0029] The front of the photovoltaic unit module 1 is a two-step stepped surface, that is, a first step surface 14 facing upward is formed between the middle part 12 and the bottom 13 of the photovoltaic unit module 1, and a second step surface 15 facing upward is formed between the middle part 12 and the top 11. A row of screw locking holes 6 running through the top 11 of the photovoltaic unit module 1 is provided. A cell embedded groove is provided on the middle part 12 of the photovoltaic unit module 1, and a photovoltaic cell 7 is embedded in the cell embedded groove. The left side of the photovoltaic unit module 1 and the left groove surface of the strip water guide groove 2 are both first-step stepped surfaces. The step surface 16 on the left side of the photovoltaic unit module 1 and the step surface 17 on the left side of the strip water guide groove 2 are both upward and at the same height, and both are lower than the level of the second step surface 15. The level of the bottom end of the upper slot 3 is lower than the level of the step surface on the left side of the strip water guide groove 2.

[0030] The right groove surface of the strip-shaped water guide groove 2 is also a stepped surface, and the step surface on the right side of the strip-shaped water guide groove 2 faces upward, so that the width of the groove at the top of the strip-shaped water guide groove 2 is not less than the width of the bottom end of the parallel portion on the right side of the photovoltaic unit module 1;

[0031] When two longitudinally adjacent photovoltaic unit modules 1 are vertically spliced, the bottom 13 of the upper photovoltaic unit module completely covers the top 11 of the lower photovoltaic unit module, and the right parallel portion of the upper photovoltaic unit module partially extends into the strip water guide groove 2 of the lower photovoltaic unit module, realizing a tight overlap of the strip water guide groove in the longitudinal direction, and the outer side surface of the right parallel portion of the upper photovoltaic unit module is close to the right groove surface of the strip water guide groove 2 of the lower photovoltaic unit module, and the portion between the upper slot 3 and the strip water guide groove 2 of the lower photovoltaic unit module is inserted into the lower slot 4 of the upper photovoltaic unit module with a clearance fit, and the portion of the upper photovoltaic unit module located on the left side of the lower slot 4 is inserted into the upper slot 3 of the lower photovoltaic unit module with a clearance fit, and the horizontal height of the top of the lower photovoltaic unit module is lower than the horizontal height of the bottom of the lower slot 4 of the upper photovoltaic unit module;

[0032] When two laterally adjacent photovoltaic unit modules 1 are spliced, the left parallel portion of the right photovoltaic unit module extends into the strip water guide groove 2 of the left photovoltaic unit module, and the left parallel portion of the left photovoltaic unit module is adjacent to the left groove wall of the strip water guide groove 2 of the right photovoltaic unit module, so that the right photovoltaic unit module covers the notch of the strip water guide groove 2 of the left photovoltaic unit module, so that the strip water guide groove is hidden, beautiful and neat.

[0033] See Figure 6When two laterally adjacent photovoltaic unit modules 1 are spliced, the left parallel portion of the left photovoltaic unit module is adjacent to the left groove wall of the strip water guide groove 2 of the right photovoltaic unit module, and a small gap flow channel 8 is formed between the left parallel portion of the left photovoltaic unit module and the left groove wall of the strip water guide groove of the right photovoltaic unit module. When it rains, rainwater will fall into the small gap flow channel 8 between the two and flow down along the small gap flow channel 8. In the case of strong winds, the small trickles of rainwater left in the small gap flow channel 8 will flow back and enter the lower slot 4 of the upper photovoltaic unit module, and flow into the upper slot 3 of the lower photovoltaic unit module along the gap at the junction of the upper slot 3 and the lower slot 4. Therefore, the bottom end of the upper slot 3 is connected to the interior of the strip water guide groove 2 through the opening 5 on the left groove surface of the strip water guide groove, so that the rainwater entering the upper slot 3 is discharged into the interior of the strip water guide groove 2 through the opening 5, thereby preventing the rainwater from being deposited in the upper slot 3 and the lower slot 4.

[0034] During installation, it is installed from bottom to top, that is, all the photovoltaic unit modules of the next layer are first installed horizontally from left to right and after the docking is completed, all the photovoltaic unit modules of the previous layer are installed longitudinally, and the bottom 13 of the upper photovoltaic unit module is completely covered on the top 11 of the lower photovoltaic unit module, so that the screw locking holes 6 on the top 11 of all the photovoltaic unit modules of the next layer are covered by the bottom 13 of all the photovoltaic unit modules of the previous layer, and the upward force of the wind can be dispersed to the longitudinal docking parts of multiple photovoltaic unit modules, effectively improving the roof's wind-resistant ability.

[0035] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An assembled waterproof photovoltaic integrated roof, characterized by: It is composed of multiple photovoltaic unit modules arranged in a matrix. Each photovoltaic unit module is a U-shaped plate structure with a U-shaped notch facing backward. A strip-shaped water guide groove running through the top and bottom of the photovoltaic unit module is opened on the front end surface of the right parallel part of the photovoltaic unit module. An upper slot and a lower slot are set on the right parallel part of the photovoltaic unit module and on the side of the strip-shaped water guide groove. The upper slot is adjacent to the top of the photovoltaic unit module with the notch facing upward, and the lower slot is set at the bottom of the photovoltaic unit module with the notch facing downward. The front of the photovoltaic unit module is a two-step stepped surface, that is, a first step surface facing upward is formed between the middle and bottom of the photovoltaic unit module, and a second step surface facing upward is formed between the middle and top. A row of screw locking holes running through the top of the photovoltaic unit module is provided. A cell embedding groove is provided in the middle area of ​​the photovoltaic unit module, and the photovoltaic cells are embedded in the cell embedding groove. The left side of the photovoltaic unit module and the left groove surface of the strip water guide groove are both first-step stepped surfaces. The step surface on the left side of the photovoltaic unit module and the step surface on the left side of the strip water guide groove are both upward and at the same height, and both are lower than the horizontal height of the second step surface. The right groove surface of the strip-shaped water guide groove is also a stepped surface, with the step surface on the right side of the strip-shaped water guide groove facing upward, so that the width of the groove at the top of the strip-shaped water guide groove is not less than the width of the bottom end of the parallel portion on the right side of the photovoltaic unit module; When two longitudinally adjacent photovoltaic unit modules are vertically spliced, the bottom of the upper photovoltaic unit module completely covers the top of the lower photovoltaic unit module, the right parallel portion of the upper photovoltaic unit module partially extends into the strip water guide groove of the lower photovoltaic unit module, the portion between the upper slot and the strip water guide groove of the lower photovoltaic unit module is inserted into the lower slot of the upper photovoltaic unit module with a clearance fit, and the portion of the upper photovoltaic unit module located on the left side of the lower slot is inserted into the upper slot of the lower photovoltaic unit module with a clearance fit; When two laterally adjacent photovoltaic unit modules are spliced, the left parallel portion of the right photovoltaic unit module extends into the strip water guide groove of the left photovoltaic unit module, and the left parallel portion of the left photovoltaic unit module is adjacent to the left groove wall of the strip water guide groove of the right photovoltaic unit module, so that the right photovoltaic unit module covers the groove opening of the strip water guide groove of the left photovoltaic unit module.

2. The assembled waterproof photovoltaic integrated roof according to claim 1, characterized in that: When the two longitudinally adjacent photovoltaic unit modules are vertically spliced, the horizontal height of the top of the lower photovoltaic unit module is lower than the horizontal height of the bottom of the lower slot of the upper photovoltaic unit module.

3. The assembled waterproof photovoltaic integrated roof according to claim 2, characterized in that: The bottom end of the upper slot is lower than the level of the left step surface of the strip water guide groove, and the bottom end of the upper slot is connected to the inside of the strip water guide groove through the opening on the left groove surface of the strip water guide groove.

4. The assembled waterproof photovoltaic integrated roof according to claim 1, characterized in that: When the two longitudinally adjacent photovoltaic unit modules are vertically spliced, the outer side surface of the right parallel portion of the upper photovoltaic unit module is in close contact with the right groove surface of the strip-shaped water guide groove of the lower photovoltaic unit module.

Citation Information

Patent Citations

  • Photovoltaic roof mounting structure

    CN111042448A

  • Solar photovoltaic waterproof roof structure device

    CN113225001A