JP2023035396A - Solar panel for sloping roof installation and construction method thereof - Google Patents

Abstract

To provide a new solar panel that can be mounted in place of asphalt shingles.SOLUTION: A solar panel 1 includes a substrate 10, a first bonding layer 11, an insulating layer 12, a second bonding layer 13, a solar cell module layer 14, a third bonding layer 15, a brightness enhancement film layer 16, a fourth bonding layer 17, and a translucent fluorine-containing film layer 18 in sequence from the bottom. Fixing holes 1011 and 1012, which are penetrating parts for fixing the solar panel 1 to the roof panel, are formed by passing nails or screws through a fixing portion 101 around the substrate 10.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a solar panel and its construction method, and more particularly to a solar panel for laying on a sloped roof and its construction method.

The progress of human civilization is embodied in the reduction of resource consumption. From this point of view, the development and use of renewable or sustainable energy is also a milestone of civilization progress. Therefore, more and more countries are beginning to undertake the promotion of renewable energy, the most conspicuous achievement being the development and utilization of solar energy. In Taiwan, people look up and see solar panels on the roofs of many residential houses, factory roofs, abandoned sites or around public utilities. After converting solar energy into electrical energy, these solar panels can supply the electrical equipment in the nearest building. It can be sold to the body. The reason why solar panels can be installed on a large scale in Taiwan is that most buildings in Taiwan are reinforced concrete structures, which have the characteristics of robustness and strong wind resistance. Furthermore, the top design of these buildings is also mostly flat, making the installation of solar panels very convenient. However, for some specific building complexes, the installation of solar panels is very disadvantageous. One example is a pitched roof building that uses a wooden structure.

From a general point of view, pitched-roof buildings using wooden structures are the predominant form of residential housing in Western countries. Therefore, it is convenient to procure timber and the construction cost is low, so the house tax is relatively low. Sloped roofs can be used for waterproofing and preventing snow accumulation, and construction is convenient. However, due to the problem of insufficient bearing capacity of the structure and the problem of the angle of the installation surface, it becomes very unstable when installing the solar panel fixing device from indoors to outdoors. Even if it could be erected, the protruding solar panel structure would not fit in with existing pitched roof designs. Therefore, if you want to use renewable energy by installing solar panels in a sloped roof building that uses a wooden structure, you must understand the traditional construction methods and materials, and modify the structure of the solar panels appropriately. .

A common waterproofing and outermost building material for pitched roofs is asphalt shingles. Asphalt shingles have a light material on their own, can be bent, are easy to cut, and can be fixed onto the root panel of a pitched roof simply by utilizing a staple gun. In terms of waterproofing, the stacking method of two rows of asphalt shingles is similar to traditional bricks, forming a sloped staircase structure that allows rainwater to flow downward along the slope. to In addition, a layer of tarp (rubber) is generally laid between the asphalt shingle and the roof panel, making it difficult for rainwater to pass through the tarp and seep down along the nails. If the modified solar panel has a special connection device and waterproof treatment, and can replace the asphalt shingle under the condition that the existing construction work is not changed, the asphalt shingle is firmly fixed on the sloping roof ( (No extra fixings), and the house built with it also has a beautiful and consistent appearance. However, there is still no product on the market today.

This section summarizes certain features of the present invention. Other features are disclosed in subsequent clauses. Its purpose is to cover various modifications and analogous arrangements within the spirit and scope of the appended claims.

In order to solve the above problems and provide a new type of solar panel that can be installed instead of asphalt shingles, the present invention discloses a solar panel for sloping roof construction, as follows: one substrate: one a peripheral fixing part and a functional component part, a first bonding layer: laid above the functional component part; an insulating layer: located above the first bonding layer, the first sticking to the substrate through bonding layers, one second bonding layer: disposed above the insulating layer, one solar cell module layer: containing at least one solar cell, located above the second bonding layer and sticking to the insulating layer through the second bonding layer, in which at least one solar cell outputs electrical energy after the solar energy is converted through at least two electrode wires, and At least two electrode wires extending to the peripheral fixing part, a third bonding layer: laid above the solar cell module layer and partially sticking to the second bonding layer, a brightness enhancement. A film layer: a film layer with a plurality of microprism structures on its upper surface, located above the third bonding layer, and sticking to the solar cell module layer through the third bonding layer, a fourth bonding layer: a light-transmitting fluorine-containing film layer disposed above the brightness enhancement film layer: a plurality of corrugated three-dimensional brightness enhancement structures on its upper surface, located above the fourth bonding layer; , sticking to the brightness enhancement film layer through the fourth bonding layer, in which the brightness enhancement guides multi-directional light rays from the outside into its interior, and the structure of the micro-prisms allows the light-transmitting A component is included that redirects light rays from the fluorine-containing film layer such that the light rays are more polarized in a direction perpendicular to the at least one solar cell and are incident on the at least one solar cell.

Preferably, a plurality of first fixing holes and a plurality of second fixing holes are respectively formed on two sides of the peripheral fixing part.

Preferably, the material of the substrate is baking-coated stainless steel, stainless steel, baking-coated alloy steel plate, alloy steel plate, aluminum, aluminum alloy, or plastic.

Preferably, the material of the first bonding layer is ethylene-vinyl acetate (EVA) or polyolefin elastomers (POE).

Preferably, the material of the second bonding layer is ethylene-ethylene acetate copolymer or polyolefin elastomer.

Preferably, the material of the third bonding layer is ethylene-ethylene acetate copolymer or polyolefin elastomer.

Preferably, the material of the fourth bonding layer is ethylene-ethylene acetate copolymer or polyolefin elastomer.

Preferably, the material of the insulating layer is polyvinyl fluoride (PVF) or polyethylene terephthalate (PET).

In one embodiment, when the number of the solar cells is two or more, the electrode wires of the same electrode can be connected to one electrode bus. According to the present invention, the top direction of the corrugated solid of the brightness-enhancing structure forms a plane and continuously adjoining circles, and each circle has a radius of curvature not exceeding 1 mm.

The substrate is square or rectangular.

The present invention also discloses a construction method of the above-mentioned solar panels for laying a sloped roof, as follows: a) Laying a waterproof layer on a roof panel of a sloped roof; Laying the solar panels, and aligning the sides where the first fixing holes are located along one reference edge of the roof panel; c) using nails or screws to fix the first fixing holes; and the waterproof layer to fix these solar panels to the roof panel; A fixing hole is aligned with the second fixing hole of the front row of solar panels in order; fixing the panels to the roof panel; f) repeating steps d) and e) until the roof panel is fully laid with these solar panels; It includes the step of adopting an anode-cathode electrical connection method for one solar panel electrode wire or electrode bus, and connecting with a waterproof conductive adhesive tape.

According to the invention, said reference edge is parallel to one specific horizontal rise or perpendicular to said specific horizontal rise. The waterproof layer may be waterproof asphalt felt.

Since there is a fixing hole for fixing in the fixing part around the substrate, the existing asphalt shingle can replace the solar panel of the present invention and be mounted on the sloping roof, water removal, moisture proof, extreme temperature resistance and features such as windproof. Said solar panels not only provide renewable energy, but also can enhance the aesthetics of pitched roofs with their tidy and consistent appearance.

1 is a schematic top view of a solar panel for laying on a sloped roof according to an embodiment of the present invention; FIG. Fig. 3 is a cross-sectional view of the solar panel along line AA'; Figure 2 illustrates an electrical connection scheme between two solar panels; The manner and efficacy of micro-prism structures and brightness enhancement structures in the diverting surface are described. Fig. 2 illustrates a solar panel laying operation; It is a flow chart of the construction method of the solar panel.

The present invention will be described more specifically through the following embodiments.

See Figures 1 and 2. FIG. 1 is a schematic top view of a solar panel 1 for laying on a sloped roof according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of the solar panel 1 along line AA'. It should be noted that, for convenience of explanation, FIGS. 1 and 2 are not produced by true product design in the proportional plane. For example, the mounting thickness of the solar cell plate 1 is 2 mm, but its length and width are likely to be several tens of centimeters, and even exceed one meter; For surfaces, the content can be obscured due to excessive compression, so we have zoomed in on the thickness by a much larger factor than the length and width of FIG. The positions between the subassemblies and the thicknesses, lengths and widths of the subassemblies are all illustrative examples only and are not intended to limit the invention by the content of the diagrams. Furthermore, since many of the technical assemblies of the solar panel 1 are transparent, only the technical assemblies visible in the mounting are illustrated in FIG.

From a structural point of view, the solar panel 1, from bottom to top, has the following components in succession: substrate 10, first bonding layer 11, insulating layer 12, second bonding layer 13, solar cell module layer 14, second It includes three bonding layers 15 , a brightness enhancement film layer 16 , a fourth bonding layer 17 and a translucent fluorine-containing film layer 18 . The characteristics, functions, materials and combination methods of each technical assembly are described in detail in the following letters.

The substrate 10 is a base that receives the load of other assembly parts, and must have sufficient toughness, preferably heat resistance, cold resistance, and moisture resistance. Stainless steel, stainless steel, baked coated alloy steel plate, alloy steel plate, aluminum, aluminum alloy or plastic may be employed. In this embodiment, stainless steel is taken as an example. In principle, the substrate 10 is unlimited and only needs to be mounted on two parallel sides. Therefore, preferably, the shape of the substrate 10 is square or rectangular. In this embodiment, the shape is rectangular. A substrate 10 includes one peripheral fixing portion 101 and one functional component portion 102 . The functional component part 102 is an area where other technical components are stacked, and on the other hand, the peripheral fixing part 101 is an area that does not belong to the functional component part 102 and can be connected to the substrate 10 of the adjacent solar panel 1. be. In this embodiment, the functional component portion 102 is a rectangular area that is small compared to the entire substrate 10 . A plurality of first fixing holes 1011 and a plurality of second fixing holes 1012 are respectively formed on two parallel sides of the peripheral fixing part 101 (the positions thereof are indicated by dotted lines in FIG. 2). In this embodiment, the number of first fixing holes 1011 and second fixing holes 1012 is four. In terms of implementation, the quantity can be designed according to actual needs. The first fixing hole 1011 and the second fixing hole 1012 are penetration parts for fixing the solar panel 1 to the roof panel by passing nails or screws. In other embodiments, the solar panel 1 can be fixed to the roof panel by directly penetrating the peripheral fixing part 101 with nails without drilling fixing holes in the two parallel sides.

The first bonding layer 11 is laid over the functional component part 102 and is made of ethylene-vinyl acetate (EVA). For the first bonding layer 11, an EVA film having appropriate dimensions is used on the mounting surface. 12 is glued. EVA has no stickiness under normal temperature and has sufficient anti-adhesion property, and the cured EVA film is completely transparent and has sufficiently high light transmittance. After curing, the EVA film has elasticity, and has the advantages of heat resistance, moisture resistance, cold resistance, impact resistance, etc., and has good adhesion to metal glass and plastic, and the overall stability of the solar panel 1. It can maintain its sex (difficult to split and decompose). Considering environmental protection, the material of the first bonding layer 11 may be Polyolefin Elastomers (POE), which also has properties similar to EVA.

An insulating layer 12 overlies the first bonding layer 11 and sticks through the first bonding layer 11 to the substrate 10 . The purpose of the insulator layer 12 is to electrically insulate the solar module layers 14 bonded thereon from the substrate 10 so that the electrical energy generated in the solar module layers 14 is transferred to the substrate 10 and the background environment. to avoid leaking. In this embodiment, the material of the insulating layer 12 is polyvinyl fluoride (PVF). Specifically, a piece of PVF film with suitable dimensions is placed on the first bonding layer 11 . PVF film is a suitable electrical insulating material due to its high sun resistance, solvent resistance, acid and alkali resistance, moisture resistance and oxidation resistance. In addition, the insulating layer 12 can also be made of polyethylene terephthalate (PET), which is also a single PET film having suitable dimensions on the mounting surface.

A second bonding layer 13 is laid over the insulating layer 12 and its purpose is to bond the solar module layers 14 to their underlying structure. The materials and mounting methods that can be used for the second bonding layer 13 are the same as those for the first bonding layer 11, so they will not be described in detail here.

The solar cell module layer 14 includes at least one solar cell 141, and the at least one solar cell 141 converts and outputs solar energy through at least two electrode wires. In this embodiment, the solar cell module layer 14 uses two solar cells 141 and is configured by mutual parallel connection. According to the spirit of the present invention, the two solar cells 141 may be connected in series with each other. Additionally, the number of solar cells 141 may be greater and the electrical connections may be made in a series, parallel or series-parallel design with each other. Of course, the solar module layer 14 may use only one solar cell 141 . In this case there is no connection problem between the solar cells 141 . For a general solar cell, the solar cell 141 in the present invention also has a top electrode line 1411 (illustrated by a thick line on a white background in FIGS. 1 and 2), belonging to the cathode; It also has a bottom electrode wire 1412 (illustrated in FIGS. 1 and 2 by a thicker line on a black background), which belongs to the anode and thus has a total of four electrode wires. However, the simplest situation is one solar cell 141 and one upper electrode wire 1411 and one lower electrode wire 1412 . The solar cell module layer 14 is located on the upper side of the second bonding layer 13 and sticks to the insulating layer 12 through the second bonding layer 13 so that it also bonds to the underlying structure of the insulating layer 12 . The four electrode wires are not limited to within the functional component section 102, but instead extend to the peripheral fixing section 101 as shown in FIG. According to the present invention, when the number of solar cells 141 is two or more, the electrode wires of the same electrode can be connected to one electrode bus. As shown in FIG. 1, two upper electrode wires 1411 are connected to one upper electrode bus 1411a, and two lower electrode wires 1412 are connected to one lower electrode bus 1412a. The function of the electrode bus is to facilitate the connection of a single interface with other solar panels 1 by connecting the electrode wires of the same electrode. The extending ends of the upper electrode bus 1411a and the lower electrode bus 1412a are movable and can be flatly attached to the peripheral fixing part 101 when the solar panel 1 is not mounted and fixed. When the solar panel 1 is fixed to the roof panel and connected to other solar panels 1, the extended ends of the upper electrode bus 1411a and the lower electrode bus 1412a can be bent outward from the peripheral fixing part 101. . See Fig. 3 for the bending method and electrical connection method. The figure illustrates the electrical connection scheme between two solar panels 1 . The bending manner of the extension ends of the upper electrode bus 1411a and the lower electrode bus 1412a of the two solar panels 1 is shown in FIG. The extended ends of the lower electrode busses 1411a of the left solar panel 1 splice with the extended ends of the upper electrode busses 1411a of the right solar panel 1 to form an electrical connection. A piece of waterproof conductive adhesive tape 30 can be applied to the splice to maintain electrical connection between the elongated ends of the two electrode buses and to prevent ingress of external moisture. In addition, if the distance between the extension ends is too long (for example, when the solar panel 1 is to be connected across the roof), the extension ends of the upper electrode bus 1411a and the lower electrode bus 1412a can be directly connected by the waterproof conductive adhesive tape 30. or after connecting the extended ends of the two electrode buses with a bus bar, the waterproof conductive adhesive tape 30 is used to connect the bus bar and the extended ends of the upper electrode bus 1411a and the lower electrode bus 1412a. or

A third bonding layer 15 is laid over the solar cell module layer 14 and partially sticks to the second bonding layer 13, whose purpose is to bond the brightness enhancement film layer 16 and its underlying structure. That is. The materials and mounting methods that can be used for the third bonding layer 15 are the same as those for the first bonding layer 11, so they are not detailed here.

Preferably, the brightness enhancement film layer 16 is made of PET material to form a flexible and elastic film layer. The brightness enhancement film layer 16 is located above the third bonding layer 15 and sticks to the solar cell module layer 14 through the third bonding layer 15 . There are a plurality of microprism structures 161 on the upper surface of the brightness enhancement film layer 16, and the microprism structures 161 look like individual small peaks when viewed in the cross-sectional direction; Form one prism and connect it to each other. Specific roles will be explained later.

A fourth tie layer 17 is laid over the brightness enhancement film layer 16 and its purpose is to bond the brightness enhancement film layer 18 to its underlying structure. The materials and mounting methods that can be used for the fourth bonding layer 17 are the same as those for the first bonding layer 11, so they will not be detailed here.

The light-transmitting fluorine-containing film layer 18 is a technical assembly that the solar panel 1 is in contact with the external light, and the mounting surface can use high-transmission Teflon material. The light-transmitting fluorine-containing film layer 18 has a plurality of wavy three-dimensional brightness enhancement structures 181 on the upper side of the fourth binding layer 17 and sticks to the brightness enhancement film layer 16 through the fourth binding layer 17 . The brightness-enhancing structure 181 can obtain a continuous “wave peak-wave trough” cross-sectional edge line segment in the cross-section in any direction other than the horizontal direction; and each circle has a radius of curvature not exceeding 1 mm.

See Figure 4. Said FIG. 4 illustrates the manner and efficacy of microprism structures 161 and brightness enhancement structures 181 in the light-redirecting surface. In said FIG. 4, the optical path of the incident light is indicated by single or continuously connecting arrows. The corrugated three-dimensional shape of the brightness enhancement 181 can guide light rays from the outside in multiple directions into the interior. For example, in one optical path L1, a ray hits the light-transmitting fluorine-containing film layer 18 through refraction; 18: In one optical path L3, the incident angle of light rays is perpendicular to the plane of incidence, so the light rays directly enter the light-transmitting fluorine-containing film layer 18 without changing direction. Based on the above three optical paths, a larger amount of light outside the light-transmitting fluorine-containing film layer 18 can enter the light-transmitting fluorine-containing film layer 18 . Furthermore, the microprism structure 161 changes the optical path of the light rays from the translucent fluorine-containing film layer 18, so that the light rays are more polarized in the direction perpendicular to the two solar cells 141 and enter the two solar cells 141. make it See Figure 4 again. If the light ray in the fourth bonding layer 17 follows one optical path L4, it can be incident on the solar cell 141 without changing its direction; If the ray is out of comparison, the ray can be made to enter the solar cell 141 in a direction perpendicular to the solar cell 141 by correcting its going direction along one optical path L5; If the original direction deviates further from the direction perpendicular to the solar cell 141, the light ray along one optical path L6 corrects its going direction to be relatively close to the direction perpendicular to the solar cell 141, It can be made incident on the solar cell 141 . However, the light path L6 still has a larger angle of incidence on the solar cell 141 than the light path L5. The greater the angle of incidence, the less energy the solar cell 141 can convert. However, without the microprism structure 161 , the angle of incidence of many rays is large enough to reduce the electro-optical conversion efficiency of the solar cell 141 .

The present invention also disclosed a method of construction of the solar panel 1 for laying on a sloped roof. Please refer to Fig. 5 and Fig. 6 at the same time for better understanding of the construction method. FIG. 5 illustrates the laying operation of the solar panel 1; FIG. 6 is a flow chart of the construction method of the solar panel 1; In FIG. 5, a partial scheme of one pitched roof 2 includes one roof panel 21 and a support system 22 supporting the roof panel 21 . First, the first step of this construction method is to lay a waterproof layer 23 on the roof panel 21 of the sloped roof 2 (S01). The waterproof layer 23 can use waterproof asphalt felt. Then, the second step is to lay a plurality of solar panels, and arrange the sides where the first fixing holes 1011 are located along one reference side of the roof panel 21 in a row. There is (S02). Here, FIG. 5 is a cross-sectional schematic diagram of the sloping roof 2, and only one solar panel can be illustrated for each row of solar panels. For convenience of explanation, the first row of solar panels is indicated by the first row of solar panels 1A. The definition of reference edge is parallel to one particular horizontal rise. For example, the reference edge is 3 meters above the ground, ie at position A in FIG. Under this circumstance, the lower edge of the first row of solar panels 1A is placed along a single imaginary straight line at the vertical position A, and the lower side of the roof panel 21 with respect to the solar panels. Start construction and installation (longitudinal construction) from The reference edge definition may be perpendicular to said particular horizontal rise in the roof panel 21 . For example, a horizontal rise located 3 meters above, perpendicular to the ground, is a straight line parallel to waterproof layer 23 in FIG. At that time, the solar panel is horizontally constructed and attached from one side of the roof panel 21 to the opposite side (horizontal direction construction).

Then, the third step is to fix the first row of solar panels 1A to the roof panel 21 through the first fixing holes 1011 and the waterproof layer 23 with nails or screws (S03). In this embodiment, nails 24 are used to fix the first row of solar panels 1A to the roof panel 21 through the first fixing holes 1011 and the waterproof layer 23 . Fourth step: connect to the front row of solar panels (here refers to the first row of solar panels 1A), continue to lay multiple solar panels in a new row, and the first fixing hole of the newly installed solar panel Aim 1011 at the second fixing hole 1012 of the front row solar panel in order (S04). For convenience of explanation, the newly installed solar panel is referred to as a second row solar panel 1B. Then, the fifth step is to attach the second row of solar panels 1B to the roof panel 21 through the first fixing hole 1011, the corresponding second fixing hole 1012 and the waterproof layer 23 with nails 24 (or screws). It is to fix (S05).

Sixth step: Repeat steps S04 and S05 until the roof panel 21 is fully laid with these solar panels (S06). Referring to FIG. 5, the third row of solar panels 1C is connected to the second row of solar panels 1B for installation, and the fixing method is also the nails 24, the first fixing holes 1011, the corresponding second Second, it is fixed to the roof panel 21 through the fixing hole 1012 and the waterproof layer 23 . The number of rows of solar panels used and the number of solar panels per row depend on the size and shape of the default area. Furthermore, since all solar panels, whether vertically installed or horizontally installed, are mounted on the roof panel 21 in an inclined orientation, rainwater will be Therefore, the water does not enter the roof panel 21 through the waterproof layer 23 from the nail 24 because it flows to the solar panel located in the lower position. Finally, the seventh step is to adopt the anode-cathode electrical connection method for the electrode wires or electrode buses of two adjacent solar panels, and connect them with waterproof conductive adhesive tape. There is (S07). The S07 step represents one of the advantages of the present invention. Electrical connections between solar panels can be easily made with a waterproof conductive adhesive tape, which prevents water seepage and facilitates mounting.

Although the present invention has been disclosed as above, it is not intended to limit the present invention; and modifications can be made, the protection scope of the present invention shall be subject to the content defined in the accompanying claims.

Claims (20)

One substrate: includes one peripheral fixed part and one functional part,
a first bonding layer: laid above the functional part,
an insulating layer: positioned above the first bonding layer and sticking through the first bonding layer to the substrate;
a second bonding layer: laid above said insulating layer;
A solar cell module layer: containing at least one solar cell, located above the second bonding layer, sticking to the insulating layer through the second bonding layer, wherein at least one solar cell outputs electrical energy after converting solar energy through at least two electrode wires, the at least two electrode wires extending to the peripheral fixing part;
a third bonding layer: laid over the solar module layers and partially sticking to the second bonding layer;
a brightness enhancement film layer: having a plurality of microprism structures on its upper surface, located above the third bonding layer, and sticking to the solar cell module layer through the third bonding layer;
A fourth tie layer: overlying the brightness enhancing film layer, in addition to:
A light-transmitting fluorine-containing film layer: its upper surface has a plurality of corrugated three-dimensional brightness-enhancing structures, located above the fourth binding layer, and sticking to the brightness-enhancing film layer through the fourth binding layer. wherein said brightness enhancement guides multidirectional light rays from the outside into it, and said microprism structure redirects light rays from said light-transmitting fluorine-containing film layer by: A solar panel for sloping roof installations, characterized in that it includes a component for causing light rays to be more polarized in a direction perpendicular to at least one solar cell and incident on said at least one solar cell. The solar panel for installing a sloped roof according to claim 1, characterized in that a plurality of first fixing holes and a plurality of second fixing holes are respectively formed on two parallel sides of the peripheral fixing part. The solar panel for installing a sloped roof according to claim 1, characterized in that the material of said substrate is baking-coated stainless steel, stainless steel, baking-coated alloy steel plate, alloy steel plate, aluminum, aluminum alloy or plastic. The solar for laying a sloped roof according to claim 1, characterized in that the material of the first bonding layer is Ethylene-Vinyl Acetate (EVA) or Polyolefin Elastomers (POE). panel. The solar panel for installation on a sloped roof according to claim 1, characterized in that the material of the second bonding layer is ethylene-ethylene acetate copolymer or polyolefin elastomer. The solar panel for installation on a sloped roof according to claim 1, characterized in that the material of the third bonding layer is ethylene-ethylene acetate copolymer or polyolefin elastomer. The solar panel for installation on a sloped roof according to claim 1, characterized in that the material of the fourth bonding layer is ethylene-ethylene acetate copolymer or polyolefin elastomer. The solar panel for laying on a sloped roof according to claim 1, characterized in that the material of the insulating layer is Polyvinyl Fluoride (PVF) or Polyethylene Terephthalate (PET). The solar panel for sloping roof construction according to claim 1, characterized in that when the number of solar cells is two or more, the electrode wires of the same electrode are connected to one electrode bus. The slant according to claim 1, characterized in that the top direction of the corrugated solids of the brightness-enhancing structure forms plane, continuously adjacent circles, and each circle has a radius of curvature not exceeding 1 mm. Solar panels for roof laying. The solar panel for sloping roof installation according to claim 1, characterized in that said substrate is square or rectangular. a) Laying one waterproofing layer on one roof panel of one sloping roof;
b) Laying a plurality of solar panels and aligning the sides where the first fixing holes are located along one reference edge of the roof panel;
c) fixing the solar panels to the roof panel with nails or screws through the first fixing holes and the waterproof layer;
d) Connect to the front row of solar panels, continue to lay multiple solar panels in a new row, and aim the first fixing hole of the newly installed solar panel to the second fixing hole of the front row of solar panels in order. to match;
e) fixing the solar panels to the roof panel with nails or screws through the first fixing hole, the corresponding second fixing hole and the waterproof layer;
f) repeating steps d) and e) until said roof panels are fully laid with these solar panels, in addition to
g) adopting the anode-cathode electrical connection method for the electrode wires or electrode buses of two adjacent solar panels, and connecting them with a waterproof conductive adhesive tape; The installation method of the solar panel for laying on the sloped roof according to claim 2, characterized in that the steps of: The construction method according to claim 12, characterized in that the reference edge is parallel to one specific horizontal high rise or perpendicular to the specific horizontal high rise. The construction method according to claim 12, wherein the waterproof layer is waterproof asphalt felt. a) Laying one waterproofing layer on one roof panel of one sloping roof;
b) Laying a plurality of solar panels and aligning the sides where the first fixing holes are located along one reference edge of the roof panel;
c) fixing the solar panels to the roof panel with nails or screws through the first fixing holes and the waterproof layer;
d) Connect to the front row of solar panels, continue to lay multiple solar panels in a new row, and aim the first fixing hole of the newly installed solar panel to the second fixing hole of the front row of solar panels in order. to match;
e) fixing the solar panels to the roof panel with nails or screws through the first fixing hole, the corresponding second fixing hole and the waterproof layer;
f) repeating steps d) and e) until said roof panels are fully laid with these solar panels, and in addition:
g) adopting the anode-cathode electrical connection method for the electrode wires or electrode buses of two adjacent solar panels, and connecting them with a waterproof conductive adhesive tape; 10. The construction method of the solar panel for laying on the sloped roof according to claim 9, characterized in that the steps of: The construction method according to claim 15, characterized in that the reference edge is parallel to one specific horizontal high rise or perpendicular to the specific horizontal high rise. The construction method according to claim 15, wherein the waterproof layer is waterproof asphalt felt. a) Laying one waterproofing layer on one roof panel of one sloping roof;
b) Laying a plurality of solar panels and aligning the sides where the first fixing holes are located along one reference edge of the roof panel;
c) fixing the solar panels to the roof panel with nails or screws through the first fixing holes and the waterproof layer;
d) Connect to the front row of solar panels, continue to lay multiple solar panels in a new row, and aim the first fixing hole of the newly installed solar panel to the second fixing hole of the front row of solar panels in order. to match;
e) fixing the solar panels to the roof panel with nails or screws through the first fixing hole, the corresponding second fixing hole and the waterproof layer;
f) repeating steps d) and e) until said roof panels are fully laid with these solar panels, and in addition:
g) adopting the anode-cathode electrical connection method for the electrode wires or electrode buses of two adjacent solar panels, and connecting them with a waterproof conductive adhesive tape; 11. The installation method of the solar panel for installation on the sloped roof according to claim 10, characterized in that the steps of: The construction method according to claim 18, characterized in that the reference edge is parallel to one specific horizontal high rise or perpendicular to the specific horizontal high rise. The construction method according to claim 18, characterized in that said waterproof layer is waterproof asphalt felt.

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