Roof photovoltaic module structure
By designing irregularly shaped photovoltaic module structures and using self-adhesive layers and connectors to splice together curved and planar power generation units, and connecting sub-cells in parallel and series, the problems of aesthetics and low power generation of photovoltaic modules are solved, achieving high-efficiency power generation and long lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-03-10
Smart Images
Figure CN223987055U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic module technology, specifically to a rooftop photovoltaic module structure. Background Technology
[0002] Currently, as photovoltaic (PV) modules are integrated into buildings, there are customized requirements for their shape and color. Because roofs need to meet both drainage and aesthetic requirements, PV modules installed on roofs must be fabricated into regular curved, multi-wave, and other structural forms to integrate them into the building. However, current installations of PV modules on existing roofs or structures generally use frame supports or direct mounting. These methods utilize the existing roof structure as a carrier rather than replacing it, and the circuit layout of the PV modules uses traditional parallel or series circuits, along with standard crimping or snap-fit connections.
[0003] Therefore, existing photovoltaic modules installed on rooftops generally suffer from poor aesthetics, short lifespan, and relatively low power generation. Utility Model Content
[0004] The purpose of this invention is to address the problems existing when photovoltaic modules are installed on rooftops, and to design a rooftop photovoltaic module structure that solves the aforementioned problems.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0006] This utility model designs a roof photovoltaic module structure. The module installation structure is formed by splicing and installing several photovoltaic modules on the roof of a building. After installation, leads are connected between the photovoltaic modules to form a power generation system.
[0007] The photovoltaic module is provided with a self-adhesive layer for splicing with each other, and a number of connecting parts for connecting with the roof of the building.
[0008] The photovoltaic module includes at least one power generation unit, and the power generation unit includes a curved power generation unit and a planar power generation unit;
[0009] The power generation unit has at least two identical sub-power generation units connected in parallel. Each sub-power generation unit is composed of several sub-batteries connected in series, and the sub-batteries are respectively located in the curved power generation unit and the planar power generation unit.
[0010] Furthermore, a rooftop photovoltaic module structure: the photovoltaic module includes two power generation units connected in series.
[0011] Furthermore, a rooftop photovoltaic module structure includes a self-adhesive layer comprising a longitudinal self-adhesive layer and a transverse self-adhesive layer; wherein the longitudinal self-adhesive layer and the connecting portion are both positioned corresponding to the planar power generation unit in the photovoltaic module, and the longitudinal self-adhesive layer is positioned along the length of the planar power generation unit for transverse splicing between several photovoltaic modules; the connecting portion is positioned below the planar power generation unit.
[0012] The lateral self-adhesive layer is disposed on both sides of the planar power generation unit and the curved power generation unit along the width direction for longitudinal splicing between several photovoltaic modules.
[0013] Furthermore, a rooftop photovoltaic module structure: the power generation unit is composed of a curved power generation unit and planar power generation units respectively disposed on both sides of the curved power generation unit.
[0014] Furthermore, a rooftop photovoltaic module structure: the photovoltaic module includes a front glass, an encapsulating film, a power generation unit, an encapsulating film, and a back glass, which are stacked sequentially from top to bottom;
[0015] The front glass and the back glass are respectively provided with curved surfaces and flat surfaces; the curved surface power generation unit and the flat surface power generation unit are respectively provided corresponding to the curved surface and the flat surface; the connecting part is provided on the back glass and corresponds to the position of the flat part; the front glass and the back glass are staggered.
[0016] Furthermore, a rooftop photovoltaic module structure is provided where two adjacent photovoltaic modules are spliced together by staggered front and back glass, and a self-adhesive layer is provided at the splicing point.
[0017] Furthermore, in a rooftop photovoltaic module structure, the number of sub-cells on the planar power generation unit is an integer multiple of the number of sub-cells on the curved power generation unit.
[0018] The beneficial effects of this utility model are:
[0019] (1) The photovoltaic module designed in this utility model is actually a photovoltaic module with an irregular structure. The module has a flat part and a curved part. This utility model can be applied to different types of roofs through the shape structure and circuit design of different areas of the photovoltaic module. It has the advantages of simple structure, beautiful appearance, waterproof and long service life.
[0020] (2) The roof photovoltaic module structure designed in this utility model comprises multiple irregularly shaped photovoltaic modules that are spliced together by a self-adhesive layer to form a continuous undulating structure. A connecting part for connecting to the building roof is provided at one end of the planar part along the length direction. Multiple modules are connected by leads to form a power generation system. The photovoltaic module consists of curved and flat parts, and its shape and size can be adjusted according to the roof design, making installation flexible, convenient, and aesthetically pleasing.
[0021] (3) The roof photovoltaic module structure designed in this utility model does not affect the overall aesthetics of the building after installation. Moreover, the power generation unit in the photovoltaic module of this utility model includes multiple independent sub-power generation units connected in parallel, and the sub-power generation units are connected in series, which not only improves the power generation of the module but also extends the service life of the photovoltaic module. The photovoltaic module in this utility model includes curved and flat parts, which is more aesthetically pleasing than flat modules and has a higher power generation than curved modules. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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.
[0023] Figure 1 This is a schematic diagram of a rooftop photovoltaic module structure provided in Example 1;
[0024] Figure 2 This is a schematic diagram of the photovoltaic module in Example 1.
[0025] The diagram is labeled as follows: 1-Photovoltaic module, 2-lead wire, 3-self-adhesive layer, 4-connector, 11-power generation unit, 111-curved power generation unit, 112-planar power generation unit, 113-sub-power generation unit, 114-sub-cell, 31-longitudinal self-adhesive layer, 32-transverse self-adhesive layer. Detailed Implementation
[0026] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientation or positional relationships, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this utility model described herein can be implemented in orders other than those illustrated or described herein.
[0028] Example 1
[0029] like Figures 1-2 As shown, this embodiment 1 designs a roof photovoltaic module structure, which is formed by splicing and installing several photovoltaic modules 1 on the roof of a building. After installation, leads 2 are connected between each photovoltaic module 1 to form a power generation system.
[0030] The photovoltaic module 1 is provided with a self-adhesive layer 3 for splicing with each other, and a plurality of connecting parts 4 for connecting with the roof of a building; the self-adhesive layer 3 includes a longitudinal self-adhesive layer 31 and a transverse self-adhesive layer 32.
[0031] The photovoltaic module 1 includes two power generation units 11 connected in series, and each power generation unit 11 is composed of a curved power generation unit 111 and planar power generation units 112 respectively disposed on both sides of the curved power generation unit 111; the longitudinal self-adhesive layer 31 and the connecting part 4 are both disposed corresponding to the positions of the planar power generation units 112 in the photovoltaic module 1, and the longitudinal self-adhesive layer 31 is disposed along the length direction of the planar power generation unit 112 for lateral splicing between several photovoltaic modules 1; the connecting part 4 is disposed below the planar power generation unit 112; the lateral self-adhesive layer 32 is disposed on both sides of the planar power generation unit 112 and the curved power generation unit 111 along the width direction of the planar power generation unit 112 and the curved power generation unit 111. Figure 2 The image shows only one side of the transverse self-adhesive layer 32. It should be understood that the opposite side is also provided with a transverse self-adhesive layer 32 for longitudinal splicing between several photovoltaic modules 1.
[0032] The power generation unit 11 has two identical sub-power generation units 113 connected in parallel. Each sub-power generation unit 113 is composed of six sub-batteries 114 connected in series. Two sub-batteries 114 are located in the curved power generation unit 111, and the other four sub-batteries 114 are located in the planar power generation unit 112 (that is, the number of sub-batteries 114 on the planar power generation unit 112 is twice the number of sub-batteries 114 on the curved power generation unit 111).
[0033] The photovoltaic module 1 includes a front glass, an encapsulating film, a power generation unit 11, an encapsulating film, and a back glass, which are stacked sequentially from top to bottom. The front glass and the back glass are respectively provided with curved and flat surfaces. The curved power generation unit 111 and the flat power generation unit 112 are respectively provided corresponding to the curved and flat surfaces. The connecting part 4 is provided on the back glass and corresponds to the position of the flat surface. The front glass and the back glass are staggered, and two adjacent photovoltaic modules 1 are spliced together by the staggered front glass and the back glass, and a self-adhesive layer 3 is provided at the splicing point. The self-adhesive layer 3 is provided along the length direction of the flat power generation unit 112, and the connecting part 4 is provided below the flat power generation unit 112.
[0034] In the above embodiment 1, the two sets of sub-power generation units 113 are each composed of six sub-batteries 114 connected in series. Figure 2 The sub-power generation unit 113 located on the left side is composed of four sub-cells 114 arranged in the planar power generation unit 112 and two sub-cells 114 arranged in the curved power generation unit 111 connected in series; the other set of sub-power generation units 113 is also composed of four sub-cells 114 arranged in the planar power generation unit 112 and two sub-cells 114 arranged in the curved power generation unit 111 connected in series. This irregularly shaped photovoltaic module of Embodiment 1 allows the roof to be completely covered by multiple sub-cells, improving the utilization rate of sunlight.
[0035] When the angle of sunlight changes, the two sets of sub-power generation units 113 connected in parallel can still generate electricity normally. Compared with the existing technology that uses whole cells or all cells connected in series, in this utility model, when one of the two sets of sub-power generation units 113 cannot receive sunlight, it only consumes the electrical energy generated by the cells connected in series with it. The degree of hot spot effect is lower, the electrical energy consumption is less, and the overall power generation efficiency and service life of the photovoltaic module are improved.
[0036] The above-described preferred embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of this utility model. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A roof photovoltaic module structure, characterized by, The photovoltaic module structure is formed by splicing and installing a plurality of photovoltaic modules (1) on the roof of a building, and connecting lead wires (2) between the photovoltaic modules (1) to form a power generation system after installation; The photovoltaic module (1) is provided with a self-adhesive layer (3) for mutual splicing, and a plurality of connecting portions (4) for connecting with the roof of the building; The photovoltaic module (1) comprises at least one power generation unit (11), and the power generation unit (11) comprises a curved power generation unit (111) and a planar power generation unit (112). The power generation unit (11) is provided with at least two groups of identical sub-power generation units (113) in parallel, and the sub-power generation units (113) are formed by a plurality of sub-cells (114) connected in series, and the plurality of sub-cells (114) are arranged in the curved power generation unit (111) and the planar power generation unit (112).
2. A building integrated photovoltaic module structure according to claim 1, wherein, The photovoltaic module (1) comprises two power generation units (11) connected in series.
3. A building integrated photovoltaic module structure as claimed in claim 1, wherein, The self-adhesive layer (3) comprises a longitudinal self-adhesive layer (31) and a transverse self-adhesive layer (32). The longitudinal self-adhesive layer (31) and the connecting portion (4) are arranged corresponding to the position of the planar power generation unit (112) in the photovoltaic module (1), and the longitudinal self-adhesive layer (31) is arranged along the length direction of the planar power generation unit (112) for transverse splicing between a plurality of photovoltaic modules (1); the connecting portion (4) is arranged below the planar power generation unit (112). The transverse self-adhesive layer (32) is arranged on both sides of the planar power generation unit (112) and the curved power generation unit (111) along the width direction thereof for longitudinal splicing between a plurality of photovoltaic modules (1).
4. A building integrated photovoltaic module according to claim 1 or 2, wherein, The power generation unit (11) is composed of the curved power generation unit (111) and the planar power generation units (112) arranged on both sides of the curved power generation unit (111).
5. A building integrated photovoltaic module according to claim 1 or 2, wherein, The photovoltaic module (1) comprises front glass, adhesive film, power generation unit (11), adhesive film and back glass arranged in sequence from top to bottom; The front glass and the back glass are provided with curved portions and planar portions, respectively; the curved power generation unit (111) and the planar power generation unit (112) are arranged corresponding to the curved portions and the planar portions, respectively; the connecting portion (4) is arranged on the back glass corresponding to the position of the planar portion; and the front glass and the back glass are arranged in a staggered manner.
6. A building integrated photovoltaic module according to claim 5, wherein, The front glass and the back glass are arranged in a staggered manner.
7. A building integrated photovoltaic module assembly structure as claimed in claim 1, wherein, The number of sub-cells (114) arranged on the planar power generation unit (112) is an integer multiple of the number of sub-cells (114) arranged on the curved power generation unit (111).